Primer system for filter assembly
US5868931A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1997 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Nov 20, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fuel filter assembly employs a hand primer and a disposable filter cartridge mounted to a filter base. The filter cartridge and filter base define a fuel flow path through the filter assembly. The filter base includes a sump for receiving fuel that has traversed the filter element. The hand primer includes a deformable member composed of an elastomeric material that cooperates with a base plate to define a cavity. The base plate is disposed intermediate the deformable member and the base sump to separate the cavity from the fuel flow path. The base plate has a plurality of orifices to selectively provide fluid communication between the cavity and the sump. A discharge passage in fluid communication with cavity provides means for discharging air from the fuel filter assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.