The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 1994
Filed:
Sep. 24, 1993
Werner Pape, Lyons, FR;
Francois Rossignol, Mornant, FR;
Robert Bosch GmbH, Stuttgart, DE;
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.