Valve device for fuel tank
US5215132A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | May 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86324
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve device for controlling fuel vapor in a fuel tank is provided with a fuel-cut valve which is disposed between the fuel tank and a charcoal canister, and between a filler tube of the fuel tank and the charcoal canister. The fuel-cut valve is provided with a casing including upper and lower chambers. A lower float is disposed in the lower chamber and arranged to close the communication between a fuel tank and a charcoal canister when fuel height level in the fuel tank is raised to a first predetermined level. A upper float is disposed in the upper chamber and arranged to close the communication between the filler tube and the charcoal canister when the fuel height level in the filler tube is raised to a second predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.