Fuel bowl vent
US4270504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1980 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Jul 1, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86895
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel metering device, such as a carburetor for a combustion engine, has a fuel bowl or fuel reservoir with a fuel vapor venting apparatus for, at times, venting such fuel vapors from the interior of the fuel reservoir to, for example, associated canister means. A resiliently deflectable valve member carried as by a stem of an associated solenoid assembly serves to open and close related fuel vapor vent passages. When in one of its operating positions, the valve member is effective for opening a vent passage leading to an associated canister and, when in another of its operating positions, the valve member is effective for opening a vent passage leading to a motive fluid induction passage leading to the associated combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.