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:
Mar. 25, 2014
Filed:
Mar. 05, 2010
Takashi Yoshizawa, Novi, MI (US);
Donald J. Mccune, Farmington Hills, MI (US);
Harsha Badarinarayan, Canton, MI (US);
Akira Inoue, Farmington Hills, MI (US);
Takashi Yoshizawa, Novi, MI (US);
Donald J. McCune, Farmington Hills, MI (US);
Harsha Badarinarayan, Canton, MI (US);
Akira Inoue, Farmington Hills, MI (US);
Hitachi, Ltd., Tokyo, JP;
Abstract
A high pressure fuel pump for use with a direct injection engine having a housing which defines a pump chamber. A port is formed in the housing which fluidly connects a fuel in the passageway with the pump chamber. An elongated valve is movably mounted within the housing between an open and a closed position. In its open position, the inlet passageway is fluidly connected with the pump chamber while, conversely, in the closed position the fuel valve blocks the fluid flow between the inlet passageway and the pump chamber. A circuit controls the deceleration of the valve to reduce pump noise.