Browse Topic: Pneumatic systems

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Retainers, (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Un-Cut, for Use in Static Glands to AS5857AS5861B (Historical)11/19/2020
This SAE Aerospace Standard (AS) specifies solid polytetrafluoroethylene (PTFE) retainers (backup rings) for use in static glands in accordance with AS5857. They are usually for use in hydraulic and pneumatic systems as anti-extrusion devices in conjunction with O-rings and other seals. NOTE: This specification includes material tests but does not include hydraulic or pneumatic performance tests.
A-6C2 Seals Committee
Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, For Use in AS5857 Static GlandsAS5860C (Current)11/9/2020
This SAE Aerospace Standard (AS) specifies scarf-cut polytetrafluoroethylene (PTFE) retainers (backup rings) for use in static glands in accordance with AS5857. They are usually for use in hydraulic and pneumatic systems as anti-extrusion devices in conjunction with O-rings and other seals.
A-6C2 Seals Committee
Air Conditioning of Aircraft CargoAIR806B (Current)5/12/2020
The report presents air conditioning data for aircraft cargo which is affected by temperature, humidity, ventilation rate and atmospheric pressure. The major emphasis is on conditioning of perishable products and warm-blooded animals. The report also covers topics peculiar to cargo aircraft or which are related to the handling of cargo.
AC-9 Aircraft Environmental Systems Committee
Spring Drive FittingTBMG-361833/1/2020
Valve and tube manufacturers continue to battle the problem of fitting pipes and tubing together quickly and reliably. The spring drive fitting addresses this challenge, bridging the gap between solutions for small-diameter tube fittings commonly seen in high-pressure, low-flow-area pneumatic systems and solutions for large flanges used in low-pressure, high-flow-area hydraulic systems.
Maximizing Biomanufacturing Productivity in Single-Use ApplicationsTBMG-3551811/1/2019
Biologics and personalized medicine are increasingly becoming more popular — causing the biomanufacturing industry to change. Instead of sticking to large-scale production processes, manufacturers are looking for new ways to be agile. To reduce product changeover times and improve efficiency, many are turning to single-use technologies, which use disposable bioprocessing equipment instead of stainless steel. Because they avoid time-consuming clean-in-place (CIP) and steam-in-place (SIP) processes between batches, single-use products lower labor, material, and utility costs and improve time to market.
A New Positioning Device Designed for Aircraft Automated Alignment System2019-01-18839/16/2019
Accurate and fast positioning of large aircraft component is of great importance for Automated Alignment System. The Ball joint is a widely-used mechanical device connecting the aircraft component and positioners. However, there are some shortcomings for the device in man-machine engineering, such as the entry state of the ball-head still needs to be confirmed by the workers and then switched to the locking state manually. To solve above problems, a new positioning mechanism is present in this paper, which consists of a ball-head and a ball-socket. The new device is equipped with a monocular vision system, in which a calibrated industrial camera is used to collect the images of the ball-head. And then, the 3-D coordinate of the ball-head center is calculated by a designed algorithm, guiding the positioner to capture the ball-head. Once the ball-head gets into the ball-socket, the pneumatic system will drive the pistons to move to the specified location. Meanwhile, the amount of compression of a set of springs has changed, so the steel balls are compelled to compress, contact or separate the ball-head, which means the states can be switched automatically. At last, an experiment is carried out to verify the accuracy of the visual system by comparing the measurement results with the laser tracker. The experimental results indicate that the design of the new positioning device with ergonomics can not only reduce the labor intensity, but also improve the assembly efficiency.
Huang, Jie, Yu, Long, Zhang, Yilian, Wang, Yuhan
Preliminary Design of Hydraulic and Pneumatic System Architectures for a Morphing Flight Control Structure2019-01-19169/16/2019
Bionics in aeronautics has the potential to increase the performance and efficiency of aircraft significantly. Inspired by the wings of birds, morphing wing structures have been extensively investigated over the last decades. The continuous adaption of the wings over a large scale of the flight envelope enables an optimization of the aerodynamic characteristics and, this way, a reduction of the fuel consumption. Additionally, those structures could support or replace traditional flight control surfaces. Depending on the morphing technology, different systems may be suitable to actuate the morphing structure. An early inclusion of the system architecture into the development of the morphing technology enables designing an optimal system in compliance with all requirements. Therefore, this paper discusses the conceptual design of system architectures for a novel morphing wing structure that is used for flight control. The benefits of morphing structures for aircraft applications are shown and the functionality of the used morphing structure is introduced. The morphing structure was designed to be actuated by fluids and is compatible with different gases and liquids. Since the fluid has a significant effect on the system architecture, characteristics of hydraulic and pneumatic systems were examined. Based on the requirements of the morphing structure, different system architectures were developed. Following, hydraulic and pneumatic architectures were selected for further investigations. Sizing functions for all main components, such as hydraulic pumps and electric motors, are presented. The preliminary design of the pneumatic system was additionally supported by a dynamic simulation. Finally, an evaluation of the selected architectures was conducted.
Schäfer, Michael, Schäfer, Andreas, Bertram, Oliver
Build IIoT Networks with Smart Control and HMI SoftwareTBMG-348798/1/2019
Programmable automation controllers (PACs) play the primary role in IIoT systems. Also referred to as machine controllers, PACs provide a centralized architecture; they act as the central programmable logic controller (PLC) as well as motion, vision, pneumatic, hydraulic controller, and even embedded human-machine interface (HMI) or visualization (Figure 1). The benefit of the PAC approach is that the program does not need to share tags between devices due to components being part of the same device and using the same logic. This facilitates IIoT capabilities and reduces programming time. This is critical to IIoT as it allows the flow of accurate, actionable data to easily transfer within the machine and out to the user or server to make critical decisions with that data.
Cryogenic Hydraulically Actuated Isolation ValveTBMG-348938/1/2019
Researchers at NASA's Marshall Space Flight Center have developed a cryogenic isolation valve that utilizes the upstream line pressure of cryogenic fluids for actuation. Previously, the use of cryogenic fluids for actuation systems had been too difficult to control and resulted in unsafe operating conditions due to the cryogenic fluid used for actuation being separated from the main body of the valve. Once separated, the cryogenic fluid would heat too quickly and vaporize, resulting in high volatile pressures.
Pneumatics for Mechanical MotionTBMG-345746/1/2019
Employing fluid power to achieve mechanical motion can be implemented via hydraulics using uncompressible liquids or via pneumatics using compressible gasses; typically, air. The latter provides several distinct advantages, making it a popular choice for many mechanical applications. Indeed, this isn’t a recent development, as using pressurized air for industrial applications and automated machinery has a history extending back well over 100 years.
Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, Up to 1500 psi and 450 °F, Hydraulic and PneumaticAS1946F (Current)12/19/2018
This SAE Aerospace Standard (AS) defines the requirements for polytetrafluoroethylene (PTFE) lined, metallic reinforced, hose assemblies suitable for use in aerospace hydraulic, fuel, and lubricating oil systems at temperatures between -67 °F and 450 °F for Class I assemblies, -67 °F and 275 °F for Class II assemblies, and at nominal pressures up to 1500 psi. The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated. The use of these hose assemblies in pneumatic storage systems is not recommended. In addition, installations in which the limits specified herein are exceeded, or in which the application is not covered specifically by this standard, for example oxygen, shall be subject to the approval of the procuring activity.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Lubricants, Industrial Oils, and Related Products Type P Pneumatic Tool Oils - SpecificationMS1009_201808 (Current)8/8/2018
See Table 1.
Fuel and Lubricants TC2 Industrial Lubricants
Sensing the Future of PneumaticsTBMG-290036/1/2018
Some species of sharks must constantly swim to keep water flowing over their gills to stay alive. That same concept also tends to apply to technology — once a technology stops evolving and moving forward, it's on its way to extinction. Fortunately for those responsible for designing and maintaining the pneumatic systems found throughout industrial environments, new sensing and data communications solutions are making pneumatics smarter and simpler to integrate into the Industrial Internet of Things (IIoT). The future of pneumatics will be linked with the expansion of smart sensing technology. Cost-effective sensing and information processing equipment is now becoming part of all types of fluid power equipment, from connectors, tubing, and hoses, to pneumatic cylinders, actuators, and filters.
Quick Disconnect for High-Pressure Mate/De-MateTBMG-290536/1/2018
NASA Kennedy Space Center seeks partners interested in the commercial application of the Quick Disconnect for High Pressure Mate/De-Mate. Designed at KSC, this technology is intended for use in dusty environments where dust particles can contaminate high-pressure connectors, resulting in wear on connector surfaces and unreliable connections. The Quick Disconnect (QD) utilizes the gas supplied by the umbilical to spray on, entrain, and remove dust from the connector surfaces prior to mating.
Inflator Assembly and Gage Elements, Pneumatic Pressure, Remote Control, Direct ReadingAS85352A (Current)4/9/2018
This specification covers a direct reading, remote control, pneumatic pressure inflator assembly, for use on aircraft tires and struts having pneumatic pressure requirements up to 600 psi. It includes pressure relief provisions to provide for safe inflation. Also included are dual chuck stem gages for measuring tire pressure.
A-5 Aerospace Landing Gear Systems Committee
Waterproof Wheelchair Runs on Compressed AirTBMG-269427/1/2017
A new waterproof motorized wheelchair uses high-pressured air as an energy source instead of heavy batteries and electronics. The chair weighs about 80 lb overall and takes just 10 minutes to recharge, compared with eight hours to charge an electric mobility device.
The Increasing Use of Electrical Actuators in the Aerospace and Defense IndustryTBMG-226698/1/2015
Hydraulic and pneumatic systems have traditionally been the market leader in providing power in the aerospace and defense industry because of their low cost and high power density. But in recent years, attention has been focused on the limitations of hydraulic actuators, including their weight, performance, and high maintenance requirements, as well as concerns over their vulnerability due to security issues and other risks.
Implementing Interconnected Generation in Future Civil AircraftTBMG-197122/1/2014
In addition to providing thrust, the engines on conventional civil jet airliners generate power for onboard systems and ancillary loads in the form of pneumatic, hydraulic, and electrical power. There is a move to begin replacing mechanically, hydraulically, and pneumatically powered aircraft systems with electrical equivalents, towards the ultimate goal of achieving the All-Electric Aircraft (AEA).
Passive Energy Recovery System Applied to Aeronautical Environment Testing Rig Results2013-01-22729/17/2013
The optimisation of energy is of the upmost importance within any vehicle and is a key driver in the design of all aeronautical projects. Modern aviation is trending towards the “More Electric Aircraft” (MEA), a model of increased electric power demand whereby traditional hydraulic, mechanical and pneumatic systems are replaced by electrical ones. This paper is based on the development project entitled “Advanced Thermal Management in Aeronautics” (ATMIA). The main target of which was to examine the potential for Loop Heat Pipes (LHPs) to be used in an aeronautical platform as assessed in previous the paper ref. 1. Until now the use of LHPs has been primarily on aerospace platforms. Project ATMIA addressed some specific requirements for an aeronautical platform such as the effects of vibrations, gravity and the possibility of disassembling for maintenance and transportation. LHPs are a technology that focuses on a thermal management philosophy that allows free-energy heat transportation. They are completely passive two-phase heat transfer devices that control the transfer of energy between certain subsystems without needing additional power consumption. They utilise the evaporation and condensation of a working fluid to transfer heat and capillary forces developed in fine porous wicks to circulate the fluid. LHPs are known for their high pumping capability, robust operation, low weight and high thermal conductivity. The use of LHPs can potentially reduce the power needed by a system and hence reduce the energy to be extracted from the engines. This decrease in engine power taken together with a potential reduction in weight directly improves fuel consumption. This can lead to a reduction in fuel used, increased efficiency and range, improved payload capacity and the reduction of CO2. The primary objective of this phase was to validate a concept study described in the previous paper ref. 2 and to demonstrate the possible use of LHPs on aircraft as a thermal management system using a laboratory test rig. Several tests were performed to analyse the performance of LHPs with aeronautical material and to investigate how much energy can be extracted from an aircraft's hot sources and transported to two different cold sources, both of which must be able to operate individually or simultaneously. During different flight conditions aircrafts operate within wide temperature ranges, hence there are some phases of the flight where one heat source can be useful to heat up one element and other where cooling might be necessary. Based on this, one of the main drivers of the project was the possibility of controlling and monitoring to which source the heat goes. The test rig layout included a real carbon fibre leading edge and a real fuel tank enclosed within a commercial refrigerator to simulate low ambient temperatures. An electrical heater was used to simulate the hot source. In this rig the behaviour of the LHP was tested. Different scenarios were simulated.
Del Valle, Pedro, Fernandez Garc, Carlos, Donovan, Mark
Cold Gas Systems, Missile or Projectiles Design, Installation, Tests and Requirements ForARP1625B (Current)6/5/2013
Systems shall be classified in terms of type, category and class.
A-6A2 Military Aircraft Committee
Bleed-Air Pneumatic Systems for Gas Turbine Equipped Marine and Amphibious CraftJ1775_201305 (Historical)5/30/2013
This Hydrospace Information Report (HIR) is intended to provide basic design considerations with respect to bleed-air pneumatic systems for marine craft equipped with gas turbine propulsion engines or gas turbine service power units with compressor bleed-air capability. It is not considered within the scope of this HIR to cover the equipment driven by this bleed air or other sources of pneumatic power such as power driven compressors. This HIR provides a description of bleed-air pneumatic system elements and identifies parameters required to define the requirements for a detailed specification. Specific design requirements are dependent on the application and should be incorporated in a detailed specification.
Ship Fluid Systems Committee
Contaminants for Testing Air Brake Components and Auxiliary Pneumatic Devices—Truck and BusJ2024_201305 (Historical)5/23/2013
This SAE Information Report establishes a minimum level of uniform recipes for contaminants which may be used when durability testing pneumatic components to obtain additional information on how a device may perform under more true-to-life operating conditions. This type of contamination testing, however, is not meant to replace the type of performance testing described in SAE J1409 and SAE J1410. Durability testing in the presence of contamination, however, will yield results more reflective of actual in-service field conditions and provide an additional evaluation of pneumatic devices. While the contaminant supply rate and other test criteria of the device being tested must be set by the device manufacturer or user, the items covered in this document will be:
Truck and Bus Brake Supply and Control Components Committee
Pneumatic Proboscis Heat-Flow ProbeTBMG-163235/1/2013
Heat flow is a fundamental property of a planet, and provides significant constraints on the abundance of radiogenic isotopes, the thermal evolution and differentiation history, and the mechanical properties of the lithosphere. Heat-flow measurements are also essential in achieving at least four of the goals set out by the National Research Council for future lunar exploration. The heat-flow probe therefore directly addresses the goal of the Lunar Geophysical Network, which is to understand the interior structure and composition of the Moon.
Powering 270 V DC Equipment from 230 V AC Aircraft Bus2012-01-222310/22/2012
Aircraft electrical power consumption has dramatically increased in recent years. Technological advancements have led to the replacement of traditional hydraulic and pneumatic systems with electrically powered devices. In addition, new functions such as deicing and entertainment systems have been added, which further increases the demand for electrical power. As power needs increase, voltage or current, or both, must be increased. Increased current can be the least desirable result as it leads to larger and heavier wires. To mitigate the issue of wire weight and distribution losses, the latest “More Electric Aircraft” have adopted 230 V ac as the main power bus voltage. However, this presents a problem as a significant amount of existing electrical aircraft equipment (actuators, pumps, etc.) have been designed to use 270 V dc power, which is obtained by a direct rectification of 115 V ac power. Two hundred seventy volts dc cannot be as simply produced from a 230 V ac bus. This paper provides details on new practical ATRU topologies that convert 3-phase 230 V ac into 270 V dc. Designs of 12-pulse and 18-pulse ATRUs are addressed. A design example of 230 V ac to 270 V dc ATRU is covered in the paper. Also, performance results from demonstration hardware, including power quality, regulation, efficiency, and reliability are provided.
Furmanczyk, Kaz, Stefanich, Mark
No time to sit still12AEID0619_016/19/2012
Seat developers are revising architectures and components to provide more functions at lower costs. Seat developers are continuing to broaden the number of electronically controlled features and functions, forcing engineers to alter strategies to cut costs so systems can be deployed beyond luxury vehicles. Engineers are redrawing their architectures, distributing intelligence, and pulling functions into centralized controllers while also revising strategies on motors and sensors. Functions such as positioning and heating continue to offer more versatility, in some instances becoming so complex that consumers must use smartphones or tablets to get the right settings. At the same time, new functions including safety-related vibrations and enhanced lighting are also being integrated into seats.
Costlow, Terry
Motion Control and System Engineering ConsiderationsTBMG-128882/1/2012
Motion control choices are best made in light of the whole system architecture, as the selection of system architecture will drive not only the implementation and integration stages of the project, but also manufacturing and field service, and even the ability to ship and install the final product. We will first review a quick tour of system engineering, and then go on to the motion control specifics.
Hose Assemblies, Metal, Medium Pressure, High TemperatureAS1424A (Historical)8/15/2011
This SAE Aerospace Standard (AS1424) covers medium-pressure, high-temperature, flexible, metal-hose assemblies suitable for operation in pneumatic systems up to 800 °F with excursion to 1200 °F for Class B and N and primarily for use on jet aircraft power plants. Refer to 1.2.1 for recommended usage.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Hose and Hose Assemblies for Marine ApplicationsJ1942_200907 (Historical)7/29/2009
SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, became effective August 28, 1991, as the official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certificated by the U.S. Coast Guard. It is intended that this document establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 Marine Fuel Hose for hose to convey gasoline or diesel fuel aboard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J1942-1 -- Qualified Hoses for Marine Applications is a listing of the products which have been certified for use in the applications described in SAE J1942, Table 1 -- HOSE APPLICATION/CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document.
Hydraulic Hose and Hose Fittings Committee
Safely Stopping Motion Using Discrete WiringTBMG-96802/1/2009
Functional machine safety using discrete wiring is an established way to protect workers from injury, and protect companies from the expense associated with accidents and downtime.
Accelerated Wear Bench Test Development for Sintered Shift Fork of Manual-Shifted Transmission2008-36-018010/7/2008
The aim of this paper is to describe an accelerated bench test designed to a fast and efficient evaluation of the pad wear of manual transmission gear shifting forks. The new bench test simulates the operational conditions of the shifting forks inside the manual transmission. It reproduces the assembly conditions and dimensional settings that influence the tribological behavior. Based on vehicle test results, the bench test was designed to work with automation system and control software that allows to defining a load application cycle, rotation and a controlled oil temperature. The paper compares bench test results against the ones obtained on vehicle tests. After some interactions, the bench test was able to simulate in 2 hours the wear usually found after 3 days of accelerated vehicle field tests.
Lupusella, Felipe, Mizukami, Ana Keiko, Fernandes, Rogério Martins
Hose and Hose Assemblies for Marine ApplicationsJ1942_200704 (Historical)4/9/2007
SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, became effective August 28, 1991, as the official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certificated by the U.S. Coast Guard. It is intended that this document establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 Marine Fuel Hose for hose to convey gasoline or diesel fuel aboard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J1942-1 -- Qualified Hoses for Marine Applications is a listing of the products which have been certified for use in the applications described in SAE J1942, Table 1 -- HOSE APPLICATION/CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document.
Hydraulic Hose and Hose Fittings Committee
Hose Assemblies, Polytetrafluoroethylene, Para-Aramid Reinforced, 3000/4000 psi, 275 °F, Standard Duty, Hydraulic, Aircraft SystemsAS1975C (Historical)1/19/2007
This Aerospace Standard (AS) defines the requirements for a polytetrafluoroethylene (PFTE) lined, para-aramid reinforced assembly suitable for use to 4000 psi, and up to 275 °F, aircraft and missile hydraulic and pneumatic systems.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Hose Assembly, Polytetrafluoroethylene (Ptfe), Up to 232°C and 10 500 Kpa Procurement Specification, Metric (Iso/Dis 10502)MA2126A (Historical)11/23/2004
This Metric Aerospace Standard (MA) covers the requirements for polytetrafluoroethylene (PTFE) hose assemblies for use in aerospace hydraulic, fuel, and lubricating oil systems at temperatures between -55°C and 232°C for Class I assemblies, -55°C and 135°C for Class II assemblies, and at nominal pressures up to 10 500 kPa (105 bar). The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated. The use of these hose assemblies in pneumatic storage systems is not recommended. In addition, installations in which the limits specified herein are exceeded, or in which the application is not covered specifically by this standard, for example oxygen, shall be subject to the approval of the purchaser.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Bleed-Air Pneumatic Systems for Gas Turbine Equipped Marine and Amphibious CraftJ1775_200406 (Historical)6/21/2004
This Hydrospace Information Report (HIR) is intended to provide basic design considerations with respect to bleed-air pneumatic systems for marine craft equipped with gas turbine propulsion engines or gas turbine service power units with compressor bleed-air capability. It is not considered within the scope of this HIR to cover the equipment driven by this bleed air or other sources of pneumatic power such as power driven compressors. This HIR provides a description of bleed-air pneumatic system elements and identifies parameters required to define the requirements for a detailed specification. Specific design requirements are dependent on the application and should be incorporated in a detailed specification.
Ship Fluid Systems Committee
Hydraulic and Pneumatic Retainers (Back-Up Rings), Polytetrafluoroethylene (Ptfe) ResinAS8791A (Historical)6/24/2003
A-6C2 Seals Committee
Hose Assemblies, Metal, Medium Pressure, High TemperatureAS1424D (Historical)1/16/2003
This SAE Aerospace Standard (AS) covers medium-pressure, high-temperature, flexible, metal-hose assemblies suitable for continuous operation in pneumatic systems up to 850 °F with short duration excursion to 1200 °F and primarily for use on jet aircraft power plants.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Hose and Hose Assemblies for Marine ApplicationsJ1942_200211 (Historical)11/12/2002
SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, became effective August 28, 1991, as the official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certificated by the U.S. Coast Guard. It is intended that this document establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 Marine Fuel Hose for hose to convey gasoline or diesel fuel aboard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J1942-1 -- Qualified Hoses for Marine Applications is a listing of the products which have been certified for use in the applications described in SAE J1942, Table 1 -- HOSE APPLICATION/CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document.
Hydraulic Hose and Hose Fittings Committee
Cold Gas Systems, Missile or Projectiles Design, Installation, Tests and Requirements ForARP1625A (Historical)8/5/2002
Systems shall be classified in terms of type, category and class.
A-6A2 Military Aircraft Committee
Hose Assembly, Polytetrafluoroethylene (Ptfe), Up to 232°C and 10 500 Kpa Procurement Specification, Metric (Iso/Dis 10502)MA2126 (Historical)3/23/2002
This Metric Aerospace Standard (MA) covers the requirements for polytetrafluoroethylene (PTFE) hose assemblies for use in aerospace hydraulic, fuel, and lubricating oil systems at temperatures between -55 °C and 232 ° C for Class I assemblies, -55 °C and 135 ° C for Class II assemblies, and at nominal pressures up to 10 500 kPa (105 bar). The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated. The use of these hose assemblies in pneumatic storage systems is not recommended. In addition, installations in which the limits specified herein are exceeded, or in which the application is not covered specifically by this standard, for example oxygen, shall be subject to the approval of the purchaser.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Automated Drilling Systems of ARIANE 5 Structures2001-01-25659/10/2001
Two Automated Drilling Systems used in the manufacturing process of ARIANE 5 structures are described. One of them is a NC system where a specially designed machine runs around the two assembly tools of the Equipment Bay. The other one is a tailor made pneumatic system that also runs around the assembly tool of and Inter-Stage Structure. In both systems, conclusions about the use of those drilling units will be exposed. Finally, an automatic riveting unit will be introduced. This unit is nowadays in a development stage and will be integrated in both related systems.
Vargas, Joaquín, Moracho, Pilar, Quintero, Francisco Javier Martínez
Hose Assemblies, Metal, Medium Pressure, High TemperatureAS1424C (Historical)8/1/2000
This SAE Aerospace Standard (AS) covers medium-pressure, high-temperature, flexible, metal-hose assemblies suitable for continuous operation in pneumatic systems up to 850 °F with short duration excursion to 1200 °F and primarily for use on jet aircraft power plants.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Safety Criteria for Pneumatic Starting SystemsAIR1639A (Current)3/1/1999
This SAE Aerospace Information Report (AIR) presents safety criteria for pneumatic type engine starting system design and component hardware. Included are safety criteria in design of both starter control valves and starters as well as in design of airframe control systems. Safety topics concern starter valve operation and material application, airframe controls and instrumentation installations and starter rotor integrity and containment.
AE-6 Starting Systems and Auxiliary Power Committee
Inflatable Strakes for Forebody Vortex ControlTBMG-298462/1/1999
It is not necessary to allocate valuable forebody volume to strake-deployment mechanisms.
Model of Response of Pressure Sensor in Rarefied FlowTBMG-298841/1/1999
A mathematical model represents the dynamic response of a pressure sensor that (a) comprises a transducer connected to a pressure-sensing port via a pneumatic tube and (b) is operated under flow conditions like those expected to be encountered on advanced hypersonic aerospace vehicles operating at high altitudes. The model is applicable to both continuum and rarefied flows, including flows accompanied by large gradients of temperature.
ASAT4-Enhanced Flexibility for the C-179821269/15/1998
The Automated Spar Assembly Tool or ASAT was originally developed for the Boeing 767 wing spar in the late 1970s. Since then this powerful concept has been further advanced and integrated into nearly all the current Boeing commercial wing lines. A fourth generation system, ASAT4, has been developed for the Boeing C-17 Globemaster III. ASAT4 provides an unprecedented level of flexibility in a minimum amount of floor space. Similar to ASAT3, ASAT4 consists of a vertical traveling yoke machine which straddles the spar fixtures. Two fixtures placed end to end form a system approximately 220 feet in length which is serviced by a single machine. This allows manual operations, e.g. load and unload, to be performed on one spar while the machine works in the adjacent cell. Each fixture can accept any of the six C-17 spars. Fixture reconfiguration between spars is completely automatic. The single three axis yoke machine, the E5000, travels the full system length. The yoke is simply supported on the side of a rigid gantry structure. The E5000 has completely redundant tool heads on both legs of the yoke. This permits drilling and fastener insertion from either side of the spar.
Hartmann, John, Macias, Ed
Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, 3000 psi, 400°F, Lightweight, Hydraulic and PneumaticAS1339D (Historical)6/1/1998
This Aerospace Standard (AS) defines the requirements for a lightweight polytetrafluoroethylene (PTFE) lined, metallic reinforced, hose assembly suitable for use in high temperature, 400 °F, high pressure, 3000 psi, aircraft hydraulic systems, also for use in pneumatic systems which allow some gaseous diffusion through the PTFE wall.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Hose and Hose Assemblies for Marine ApplicationsJ1942_199705 (Historical)5/1/1997
SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, become effective August 28, 1991, as the official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certified by the U.S. Coast Guard. It is intended that this document establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J 1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 marine Fuel Hose for hose to convey gasoline or diesel fuel aboard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J 1942-1—Qualified Hoses for Marine Applications is a listing of the products which have been certified for use in the applications described in SAE J1942, Table 1. HOSE APPLICATION/CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document.
Hydraulic Hose and Hose Fittings Committee
Hose Assemblies, Metal, Medium Pressure, High TemperatureAS1424B (Historical)5/1/1996
This SAE Aerospace Standard (AS) covers medium pressure, high temperature, flexible, metal hose assemblies suitable for continuous operation in pneumatic systems up to 850 °F with short duration excursion to 1200 °F and primarily for use on jet aircraft power plants.
G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Hose and Hose Assemblies for Marine ApplicationsJ1942_199505 (Historical)5/1/1995
SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, became effective August 28, 1991, as the official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certificated by the U.S. Coast Guard. It is intended that this document establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 Marine Fuel Hose for hose to convey gasoline or diesel fuel aboard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J1942-1 -- Qualified Hoses for Marine Applications is a listing of the products which have been certified for use in the applications described in SAE J1942, Table 1 -- HOSE APPLICATION/CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document.
Hydraulic Hose and Hose Fittings Committee
COLD GAS SYSTEMS, MISSILE OR PROJECTILES DESIGN, INSTALLATION, TESTS AND REQUIREMENTS FORARP1625 (Historical)12/1/1994
Systems shall be classified in terms of type, category and class.
A-6A Systems Subsystem Integration Steering Group
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