Browse Topic: Pneumatic systems

Items (81)

TBMG-3956608/01/2021

Pneumatics have been used in automated machines for well over 100 years, with pneumatic technology developing and evolving for over 1,000 years in some form or another; for example, as boat sails.

Human-Like Hands with Flexible, Hybrid Pneumatic Actuators

TBMG-3813812/01/2020

In industrial settings, robots often are used for tasks that require repetitive grasping and manipulation of objects. The end of a robot where a human hand would be found is known as an end effector or gripper. Researchers have developed a humanoid hand design that is a soft-hard hybrid flexible gripper. It can generate larger grasping force than a traditional pure, soft hand and simultaneously be more stable for accurate manipulation of heavier objects.

Retainers, (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Solid, Un-Cut, for Use in Static Glands to AS5857

AS5861B (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, Solid, Un-Cut, for Use in Static Glands to AS5857

AS5861B-TEST-REC (Historical)11/19/2020

A-6C2 Seals Committee

Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, For Use in AS5857 Static Glands

AS5860C-TEST-REC (Historical)11/09/2020

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

Retainers (Backup Rings), Hydraulic and Pneumatic, Polytetrafluoroethylene Resin, Single Turn, Scarf-Cut, For Use in AS5857 Static Glands

AS5860C (Current)

11/09/2020

A-6C2 Seals Committee

Taking Benchtop Fluid Dispensing to a New Level of Process Control

TBMG-3807611/01/2020

Pneumatic benchtop fluid dispensers encompass a range of models that can accommodate specific fluid application processes with a wide scope of functionality. The latest benchtop dispensers provide a high degree of process control, capable of dispensing adhesives, solder pastes, and all other assembly fluids with high consistency. Handling fluid dispensing of dots, beads, and fills under a broad range of conditions, these units are equipped with multiple capabilities to refine the dispensing process. Features such as 0–100 psi air pressure regulation, timed-shots, vacuum control to keep thin fluids from dripping, digital time/pressure displays, and electric foot pedals help operators maintain process control.

Air Conditioning of Aircraft Cargo

AIR806B (Current)05/12/2020

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 Fitting

TBMG-3618303/01/2020

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.

Cryogenic Hydraulically Actuated Isolation Valve

TBMG-3489308/01/2019

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 Motion

TBMG-3457406/01/2019

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 Pneumatic

AS1946F (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 - Specification

MS1009_201808 (Current)08/08/2018

See Table 1.

Fuel and Lubricants TC2 Industrial Lubricants

Quick Disconnect for High-Pressure Mate/De-Mate

TBMG-2905306/01/2018

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 Reading

AS85352A (Current)04/09/2018

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 Air

TBMG-2694207/01/2017

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.

Linear Actuators for High-Speed, Low-Load Applications

TBMG-2623601/01/2017

A number of medical applications need high-speed actuation in the lower load band. Many OEMs use pneumatic actuators or electric solenoids for this purpose; however, these options do not provide precise positioning. And, although more expensive technology such as servo pneumatic positioning systems are available, accurate positioning at high speeds is still difficult with pneumatic systems.

Implementing Interconnected Generation in Future Civil Aircraft

TBMG-1971202/01/2014

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).

Bleed-Air Pneumatic Systems for Gas Turbine Equipped Marine and Amphibious Craft

J1775_201305 (Historical)05/30/2013

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 Bus

J2024_201305 (Historical)05/23/2013

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 Probe

TBMG-1632305/01/2013

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 Bus

2012-01-222310/22/2012

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

Furmanczyk, Kaz, Stefanich, Mark

No time to sit still

12AEID0619_0106/19/2012

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 Considerations

TBMG-1288802/01/2012

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 Temperature

AS1424A (Historical)08/15/2011

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 Applications

J1942_200907 (Historical)07/29/2009

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

Hydraulic Hose and Hose Fittings Committee

Safely Stopping Motion Using Discrete Wiring

TBMG-968002/01/2009

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 Transmission

2008-36-018010/07/2008

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 Applications

J1942_200704 (Historical)04/09/2007

Hydraulic Hose and Hose Fittings Committee

Hose Assemblies, Polytetrafluoroethylene, Para-Aramid Reinforced, 3000/4000 psi, 275 °F, Standard Duty, Hydraulic, Aircraft Systems

AS1975C (Historical)01/19/2007

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 Craft

J1775_200406 (Historical)06/21/2004

Ship Fluid Systems Committee

Hydraulic and Pneumatic Retainers (Back-Up Rings), Polytetrafluoroethylene (Ptfe) Resin

AS8791A (Historical)06/24/2003

A-6C2 Seals Committee

Hose Assemblies, Metal, Medium Pressure, High Temperature

AS1424D (Historical)01/16/2003

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 Applications

J1942_200211 (Historical)11/12/2002

Hydraulic Hose and Hose Fittings Committee

Hose Assembly, Polytetrafluoroethylene (Ptfe), Up to 232°C and 10 500 Kpa Procurement Specification, Metric (Iso/Dis 10502)

MA2126 (Historical)03/23/2002

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

Hose Assemblies, Metal, Medium Pressure, High Temperature

AS1424C (Historical)08/01/2000

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies

Safety Criteria for Pneumatic Starting Systems

AIR1639A (Current)

03/01/1999

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