Marine propulsion system with separate air intake and cooling systems
US7806741B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B61/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An outboard motor is provided with two distinct and separate streams of air flowing through its cowl structure. One stream of air is intended to cool various heat emitting components under the cowl and the other stream of air is intended to provide required air for combustion within the cylinders of the engine. The two streams of air flow along first and second flow paths which are maintained in isolation with respect to each other so that the air in the two streams of air are not mixed together. In that way, heat is prevented from decreasing the density of the air stream flowing into the cylinders for combustion within the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.