Debris resistant valve assembly
US5038724A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7841
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine comprising an engine block defining a cylinder bore and a fluid jacket, an annular valve seat defining a first passageway communicating with the fluid jacket, a valve assembly including a housing having a fluid inlet, a fluid outlet, a second passageway communicating between the inlet and the outlet, a second valve seat located in said second passageway, and a partially spherical outer surface portion moveable into and out of seating engagement with the annular valve seat, a valve member in the housing, and a mechanism for moving the valve member into and out of seating engagement with the second valve seat for respectively closing and opening said second passageway, and a mechanism for biasing the partially spherical outer surface portion into seating engagement with the annular valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.