Fuel shut-off valve
US4616805A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1985 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | Jun 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18984
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fuel shut-off valve for an internal combustion engine carburetor which includes passages leading from a fuel source to a controlled fuel passage. A valve seat is interposed between these passages disposed to be closed by a plunger type valve biased toward the valve seat by a coil spring. An actuator for the valve includes a configuration to keep the valve from rotating and a cross-pin transfixing a valve stem on the plunger type valve. A cam lever has a collar surrounding the valve stem with cam surfaces to engage the cross-pin which upon rotation will lift the valve off of the valve seat. A radial detent groove at the top of the cam surface receives the cross-pin to establish the open position of the valve. Release of the pin from the detent groove causes the pin to ride down the cam surface under the bias of the spring to a closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.