Fuel cutoff valve and fuel tank
US6408867B1 · kind B1 · utility
28Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2001 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86324
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is a fuel cutoff valve that reduces the emission of fuel vapors from within fuel tanks. The fuel cutoff valve is mounted by partial insertion into a fixation hole provided in an upper tank wall of a fuel tank. The fuel cutoff valve comprises a cover, a casing, a float, and a spring. In the cover, a matrix of polyacetal having excellent resistance to fuel permeation reduces emission of fuel vapors into the atmosphere, while a dispersed phase of polyethylene in the matrix allows welding to fuel tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.