Exhaust heated crankcase for 2-cycle marine engine
US4836152A · kind A · utility
2Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Feb 19, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The idle exhaust pressure relief system in an outboard motor is utilized to simultaneously heat the engine crankcase or other parts of the fuel supply system to prevent the puddling of fuel typically occurring at lower engine temperatures. Because the idle exhaust pressure relief system is inherently operable to conduct hot exhaust gases out of the exhaust manifold only at idle or low speed operation, heat is supplied to the crankcase only at temperatures when fuel puddling typically occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.