Fuel filter in a fuel injection apparatus for internal combustion engines
US5360164A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Sep 24, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/23
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection apparatus for internal combustion engines, having a pump piston, axially guided in a cylinder bore of a pump housing, driven in a reciprocating manner by a cam drive; the pump piston defines a pump work chamber with its face end. The pump work chamber communicates with an injection valve via a pressure conduit and fuel from a reservoir is fed in and removed via a fuel line that has a feed pump; the triggering of the supply onset and end of supply of the unit fuel injector is achieved by means of a magnet valve inserted in the feed line in the region of the pump housing. In order to prevent the deposit of dirt particles in the pump, the unit fuel injector has a fuel filter in the pump housing, which is inserted in a diversion chamber below the magnet valve, and upstream of which a baffle plate is provided in the direction of the magnet valve to protect the filter from the intense diversion stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.