Fuel delivery device of fuel tank
US5894857A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86204
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fuel delivery device for a fuel tank comprising a float chamber for sucking fuel in a normal state, a sub chamber for sucking a small quantity of fuel remaining within a tank and a communication chamber for communicating the float chamber and the sub chamber to each other in lower portions thereof En the fuel delivery device for a fuel tank, a sub float chamber is provided above the sub chamber, the sub float chamber has a gas discharge port communicating with-the fuel tank in an upper portion, a vent hole communicating with the sub chamber in a lower portion and a sub float valve within, and the sub float valve ascends and descends in accordance with a quantity of an excess fuel returned to the sub float chamber from the engine so as to open and close the vent hole. Further, in the fuel delivery device for a fuel tank, a bypass passage having bent passage sections of down, up and down which is formed by arranging a lower separation wall having a gap in an upper portion with respect to a communication passage for feeding out fuel from the sub chamber to the communication chamber and an upper separation wall having a gap in a lower portion with respect to the communication passage…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.