Marine propulsion device with closed deck cylinder block construction
US5048468A · kind A · utility
8Cited by
28References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Sep 14, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2200/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is an engine comprising a closed deck cylinder block including a cylinder bore having an outer end, a counter bore at the outer end of the cylinder bore, and cylinder liner received in the cylinder bore and defining, with the counter bore, a U-shaped annular groove in the cylinder head mounting surface. A seal is located in the groove to provide a seal between the cylinder head and cylinder block. There is a pressure relief valve to control flow to the coolant jacket in the cylinder heat from the coolant jacket in the cylinder block. At low speeds the valve is closed so as to not overly cool the cylinder head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.