New Device for the Measurement of Piston Frictional Forces in Small Engines 831284
Measurement of piston frictional forces during engine operation is valuable for improved fuel economy engine design. The measurement, however, is not easy work because the frictional forces are small compared with the gas and inertia forces. Several years ago, at the Musashi Institute of Technology, frictional forces were measured with a movable bore with pressure balancing. Recently, the pressure balancing devices have been improved and adapted for small engines.
The piston frictional forces in a small diesel engine and a gasoline engine have been measured with the new device. The characteristics of the friction forces and the comparison between engine sizes, gasoline and diesel engines have been clarified and the effect of multi-grade oil and friction modifiers have been tested.
Citation: Furuhama, S. and Sasaki, S., "New Device for the Measurement of Piston Frictional Forces in Small Engines," SAE Technical Paper 831284, 1983, https://doi.org/10.4271/831284. Download Citation
Author(s):
Shoichi Furuhama, Shinichi Sasaki
Affiliated:
Musashi Institute of Technology Tokyo
Pages: 15
Event:
1983 SAE International Off-Highway and Powerplant Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
State-Of-The-Art on Design and Performance of Diesel Power Cylinder Components-SP-0552
Related Topics:
Diesel / compression ignition engines
Fuel economy
Pistons
Gasoline
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