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:
Jul. 12, 2005
Filed:
May. 29, 2002
Hiroshi Yoshioka, Chiyoda-ku, JP;
Hisashi Kuwada, Chiyoda-ku, JP;
Hiroshi Yoshioka, Chiyoda-ku, JP;
Hisashi Kuwada, Chiyoda-ku, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A fuel supply apparatus having a fuel pressure regulator () for regulating the pressure of fuel discharged from a fuel pump () to a predetermined pressure, the fuel pressure regulator () including: a first chamber (), formed in a case (), into which fuel discharged from the fuel pump () flows, and a second chamber (), into which the fuel flows via the first chamber (); a fuel limiting means () disposed between the first chamber () and the second chamber (), for limiting fuel flowing from the first chamber () into the second chamber (); a pilot valve unit () having a passageway for opening to discharge fuel tank (), when the fuel pressure in the second chamber () is more than a first set pressure (Pp); and a main valve unit () having a passageway for opening to discharge fuel into the fuel tank () when the fuel pressure in the first chamber () is equal to a second set pressure (Pm) between the first set pressure (Pp) and the predetermined pressure (Pi), whereby, in cases where returning flow volume drops, the pressure of the fuel delivered under pressure to the injector does not drop.