Exhaust heated induction air for two-cycle engine
US4846136A · kind A · utility
11Cited by
13References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Feb 26, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Intake air to the carburetor of a two-cycle engine is preheated by ducting ambient temperature outside air past hot engine surfaces. Preferably, a portion of the intake air duct includes a heat exchanger formed integrally with the outer wall of the engine exhaust manifold. The use of heated intake air enhances idle and low speed operation of the engine by reducing or eliminating fuel puddling and by narrowing the temperature range used for carburetor calibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.