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. 28, 2017
Filed:
Nov. 25, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Fuminori Suzuki, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A variable capacity type oil pump, which is driven by an engine, supplies hydraulic pressure to a hydraulic control circuit of an automatic transmission. A range switch mechanism, which includes a motor as a motive power source, switches a shift range of the automatic transmission. Further, a switch operation mechanism, which switches a discharge amount of the oil pump, is driven by the motor of the range switch mechanism. In this case, an operative position of the switch operation mechanism is switched by the motor according to an input rotation speed of the oil pump, thereby switching the discharge amount of the oil pump. Accordingly, the motor of the range switch mechanism is used to drive the switch operation mechanism to switch the discharge amount of the oil pump, and thus a motive power source dedicated to changing the discharge amount of the oil pump is not needed.