How is a wankel engine lubricated?

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SUMMARY

The lubrication of Wankel engines, such as those found in the Mazda RX-8, utilizes a pressurized oil system rather than a two-stroke mixing method. The engine typically requires 5W-20 oil, which is crucial for maintaining the seals of the unique triangular rotor. The choice between wet and dry sump systems depends on the type of racing; wet sumps are more cost-effective for drag racing, while dry sumps are preferred for oval or road racing due to their efficiency in oil management. Understanding the mechanics of the pressurized system is essential for effective lubrication in these engines.

PREREQUISITES
  • Understanding of Wankel engine mechanics
  • Familiarity with lubrication systems in internal combustion engines
  • Knowledge of oil viscosity ratings, specifically 5W-20
  • Experience with racing engine configurations, including wet and dry sump systems
NEXT STEPS
  • Research the mechanics of Wankel engine lubrication systems
  • Learn about the differences between wet and dry sump oil systems
  • Explore the role of engine seals in Wankel engines
  • Investigate advancements in lubricants for high-performance engines
USEFUL FOR

Automotive engineers, racing enthusiasts, and mechanics interested in the lubrication and performance of Wankel engines will benefit from this discussion.

chhitiz
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i was admiring its animation like when this popped into my head.
any answers?
also anybody know any latest developments in lubricating closed off engines?
 
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I believe when I had an RX8 it used 5w20
 
yeah, but that's just the type of lube
what is the actual method?
is it just mixed with the charge like a two stroke?
is there no other way, like having a wet/dry sump system?
 
i worked on a wankle engine in the 1970s...about like any other raace engine..has pressureized oil system but the trick is to seal up the little rotating triangle ' piston"

check out http://www.racingbeat.com/mazda/performance/rotary-tech-tips/engine-seals.html?id=3cZ9XYDV

as far as wet sump dry sump...it depends on what type racing..if drag racing...wet sump is cheaper lighter ..if oval or road racing...you better have dry sump oil system..

i know of no two cycle wankel engines..not to say there are not any but I have not seen any..
 
Ranger Mike said:
i know of no two cycle wankel engines..not to say there are not any but I have not seen any..
i do not understand what u mean by that.
how does the pressurized system work? is the oil introduced at top and collected thru bottom while keeping the "major axis" of the epitrochoid vertical?
 

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