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:
Sep. 10, 2002
Filed:
Oct. 29, 2001
Applicant:
Inventor:
Henri Mazet, Chatou, FR;
Assignee:
Magneti Marelli France, Nanterre, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/704 ;
U.S. Cl.
CPC ...
F02M 3/704 ;
Abstract
The control of the pressure in the high-pressure circuit ( ) downstream from the pump ( ) consists of controlling the solenoid valve ( ) at the inlet of the pump ( ) so that the fuel mass delivered by the pump ( ) into the circuit ( ) is equal to the algebraic sum of a fuel mass to be injected into the engine ( ) and a fuel mass required to at least partially compensate a pressure difference between the fuel pressure measured by the sensor ( ) in the circuit ( ) and a target pressure desired by the control unit ( ) in the circuit ( ). Applies to pressure control for direct fuel injection into engines, particularly with externally supplied ignition.