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:
Feb. 02, 2016
Filed:
Sep. 09, 2011
Keiichi Kai, Isesaki, JP;
Junichi Miyajima, Isesaki, JP;
Noriyuki Kawamata, Wako, JP;
Toshimasa Mitsubori, Wako, JP;
Satoshi Ino, Wako, JP;
Keiichi Kai, Isesaki, JP;
Junichi Miyajima, Isesaki, JP;
Noriyuki Kawamata, Wako, JP;
Toshimasa Mitsubori, Wako, JP;
Satoshi Ino, Wako, JP;
YAMADA MANUFACTURING CO., LTD., Kiryu-Shu, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
An oil pump unit with a variable flow rate includes: an oil pump having an intake port and a discharge port and accommodating a pump rotor; and an oil path switching valve having oil inlets and oil outlets and opening/closing oil pressure return holes communicating with the discharge port, in which the oil path switching valve and the oil pump are separately disposed, the intake port and the discharge port are open to valve-mounting surfaces formed at the oil pump, and oil inlets and the oil outlet are open to body-mounting surfaces matching with the valve-mounting surfaces of the oil path switching valve.