Fuel check valve assembly for fuel tank
US5004002A · kind A · utility
20Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7834
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fuel check valve assembly for use in a fuel tank has a valve seat which is movable upwardly together with a float valve upon increase of a pressure within the fuel tank. Upon further increase of the pressure within the fuel tank, the valve seat is separated from the float valve and solely moves upwards to open the aperture of the valve seat for venting fuel vapor in the fuel tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.