Fuel pump
US6318973A · kind A · utility
6Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Nov 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7923
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel pump includes an O-ring seal to provide sealing contact with a diaphragm seal between a valve housing and associated valve cover interface despite some loss of clamping load between such mating parts. Also, a molded O-ring type ladder seal is used to maintain seal integrity between the valve housing and associated pump housing interface despite some loss of clamping load therebetween. Machined O-ring grooves are desirably provided in opposite sides of the valve housing to accommodate the O-ring against the diaphragm seal and the molded O-ring type ladder seal against the pump housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.