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:
Jan. 30, 2001
Filed:
Feb. 11, 2000
Applicant:
Inventors:
Jean Doreau, Vigny, FR;
Michel Poirier, Pontoise, FR;
J{acute over (e)}r{circumflex over (o)}me Piaton, Montlucon, FR;
Assignee:
Sagem SA, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/304 ; F04B 9/08 ;
U.S. Cl.
CPC ...
F02M 3/304 ; F04B 9/08 ;
Abstract
An injection pump comprises several modules in a housing. Each module has a chamber supplying an injection circuit, separated by a deformable diaphragm from a compartment defined by a bore of the housing and by a reciprocating piston. The chamber is connected to a fuel supply and is connected to the injection circuit by a non-return valve. The pressures of the liquid in each compartment are adjusted independently. All pistons are driven by a same cam.