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. 04, 2003
Filed:
Feb. 26, 2002
Hiroshi Inoue, Chiryu, JP;
Tatsumi Oguri, Okazaki, JP;
Denso Corporation, Kariya, JP;
Abstract
A high pressure fuel pump, to suppress the effect of a pressure pulsation caused by the operation of a moving member and whose valve part shows stable response, has a flow amount control valve for adjusting the supply amount of fuel discharged by the sliding reciprocating movement of a plunger fitted in a pump chamber by controlling the opening or closing of a spill port by a valve part, the flow amount control valve has a stem part arranged in an operating chamber disposed on the side opposite to the pump chamber and transmits an urging force from a moving part to the valve part, the urging force being applied by the moving part to the valve part in the direction that separates the valve part from the valve seat, and is more slender than the moving part.