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. 10, 1998
Filed:
Mar. 17, 1997
Applicant:
Inventor:
Yves Robert Halin, St. Germain Les Corbeil, FR;
Primary Examiner:
Int. Cl.
CPC ...
F02C / ;
U.S. Cl.
CPC ...
60 39281 ; 210106 ;
Abstract
A fuel injection supply circuit including a main filter situated between a low pressure pump and a high pressure pump, and a fuel metering device for supplying a metered flow of fuel to the fuel injectors, is provided with a self-cleaning filter downstream of the high pressure pump such that a first portion of the fuel flow received by the self-cleaning filter is filtered to provide a clean flow of fuel to the fuel metering device and the excess portion of the received fuel flow passes through the center of the self-cleaning filter and is returned, via a control valve, to the circuit upstream of the main filter.