This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Air-Cooled Rotary Engines - A Fuels and Lubricants Study
Annotation ability available
Sector:
Language:
English
Abstract
Several MIL-L-2104C lubricants were evaluated in a small air-cooled rotary combustion engine, using leaded and unleaded gasoline. A 50 h endurance test was developed which discriminates lubricant quality on the basis of combustion chamber, spark plug, and side plate deposits. Additionally, use of unleaded fuel resulted in an eventual decrease in engine performance at approximately the 40 h mark. This is attributed to the character of apex and side seal groove deposits which caused seal spring binding and consequent blow-by. The presence of sulfur in each fuel may also have an attenuative effect on such binding.
Recommended Content
Technical Paper | Development of a Low Pumping Loss Rotary Engine with a New Port Mechanism |
Technical Paper | SOME RECENT ENGINE OIL DEVELOPMENTS |
Technical Paper | Impact of E100 Fuel on Bearing Materials Selection and Lubricating Oil Properties |
Authors
Citation
Russell, J., Lestz, S., and Gray, J., "Air-Cooled Rotary Engines - A Fuels and Lubricants Study," SAE Technical Paper 730046, 1973, https://doi.org/10.4271/730046.Also In
References
- Communications with technical personnel U.S. Army Tank-Automotive Command Warren, Michigan 1966-1972
- “Tests of Experimental Hard Anodized Aluminum Apex Seal on a Sachs-Wankel Engine,” Electro-Technology Department Testing Evaluation Division Test Report July 28 1971
- Rogers T. W. et al “Lubricant Studies in Rotary Combustion Engines.” Paper 720467 SAE National Automobile Engineering Meeting Detroit May 1972
- Bowden J. N. “Status of Unleaded and Low-Lead Gasoline Composition.” Interim Report U.S. Army Fuels and Lubricants Laboratory San Antonio, Texas August 1972
- Keller H. “Small Wankel Engines,” Transactions 77 1968 paper 680572