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:
May. 31, 2016
Filed:
May. 11, 2012
Tomoya Sato, Iwate, JP;
Tetsuo Muraji, Odawara, JP;
Toshinori Hirayama, Iwate, JP;
Hiroshi Kato, Odawara, JP;
Tomoya Sato, Iwate, JP;
Tetsuo Muraji, Odawara, JP;
Toshinori Hirayama, Iwate, JP;
Hiroshi Kato, Odawara, JP;
MIKUNI CORPORATION, Tokyo, JP;
Abstract
A high-pressure fuel pump device of the invention includes a plunger-type high-pressure pump unit () configured to pressurize fuel as a plunger () thereof makes reciprocating motion, a diaphragm-type supply pump unit () configured to suck in fuel in a fuel tank () and supply the fuel to the high-pressure pump unit as a diaphragm () thereof oscillates in conjunction with the reciprocating motion of the plunger, and a fuel return unit () provided in the supply pump unit and configured to return, to the fuel tank, surplus fuel that is not sucked into the high-pressure pump unit.