In tank fuel pump filter
US5702237A · kind A · utility
11Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1995 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Nov 3, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2239/1291
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fuel filter for the inlet of a fuel pump having upper and lower wall portions each constructed of a material with a plurality of openings. The lower wall portion has a greater total thickness and/or a smaller average opening size than the upper wall portion to provide more effective filtration of the fuel drawn into the fuel pump through the lower wall of the filter. The filter also causes a greater resistance to fuel flow through the lower wall thereby increasing the rate of fuel drawn through the upper wall of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.