Outboard marine drive cooling system
US8500501B1 · kind B1 · utility
24Cited by
13References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Aug 17, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An outboard marine drive includes a cooling system drawing cooling water from a body of water in which the outboard marine drive is operating, and supplying the cooling water through cooling passages in an exhaust tube in the driveshaft housing, a catalyst housing, and an exhaust manifold, and thereafter through cooling passages in the cylinder head and the cylinder block of the engine. A 3-pass exhaust manifold is provided. A method is provided for preventing condensate formation in a cylinder head, catalyst housing, and exhaust manifold of an internal combustion engine of a powerhead in an outboard marine drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.