Anti-spilling valve for vehicle fuel tank
US5522417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Apr 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3099
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-spilling valve for a vehicle fuel tank includes a cylindrical valve chamber having an upper wall at its upper end and closed at its lower end by a filter, an upwardly directed exhaust passage for fuel vapor formed at the center of the upper wall of the cylindrical valve chamber, a connecting pipe provided on the upper wall of the cylindrical valve chamber to extend radially outward and to have its inner end communicate with the upper end of the exhaust passage at a right angle, the inside diameters of the exhaust passage and the connecting pipe being equal, a float housed in the cylindrical valve chamber to be vertically movable and having on its upper surface a valve head adapted for closing the lower end of the exhaust passage, and a valve seat ring attached to the lower end of the exhaust passage closed by the valve head of the float, the valve seat ring having a smaller inside diameter than the exhaust passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.