EXPERIMENTAL AND SIMULATION ANALYSIS OF 1.3 LITRE WATER COOLED ENGINE LUBRICATION CIRCUIT
2022-01-0203
03/29/2022
- Event
- Content
- To meet stringent reduction in exhaust emission and improving internal combustion engine fuel efficiency, have forced the designer to optimize auxiliary systems like lubrication and cooling. This paper describes the experimental and simulation verification of a 1.3 litre water cooled engine lubrication system. The lubrication circuit model is built in Ricardo Ignite software. The simulation model preparation steps using 3D-CAD model is explained in paper. Engine main bearing and connecting big-end bearing maps are evaluated using Ricardo Engdyn software which is capable of simulation engine crank-train multi body dynamics along with bearing oil behaviour. An engine heat loss to oil is also estimated based on well-established empirical relationships. Engine transient behaviour with thermal aspect is also checked and validated with experimental results. The oil sump temperature limit is kept 130°C for extreme ambient temperature conditions as a design limit. The calibration model is used for verifying sump oil temperature when cylinder head/line fin cooling is reduced for improving engine fuel efficiency. A trade-off of fan speed limit and oil sump temperature is evaluated for an optimum solution which is again validated experimentally. Engine main gallery pressure lower and upper design limit is also established and pressure relief valve design finalized accordingly. The intention of this work is to check feasibility of this technique for establishing good confidence and expertise in lubrication system developments.
- Citation
- Nain, A., "EXPERIMENTAL AND SIMULATION ANALYSIS OF 1.3 LITRE WATER COOLED ENGINE LUBRICATION CIRCUIT," SAE Technical Paper 2022-01-0203, 2022, .