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:
Oct. 13, 2020
Filed:
Apr. 12, 2018
Yamada Manufacturing Co., Ltd., Kiryu-shi, Gunma, JP;
Keihin Corporation, Tokyo, JP;
Yuji Senbongi, Kiryu, JP;
Kenichi Fujiki, Kiryu, JP;
Toru Kobayashi, Kiryu, JP;
Ken Kaneko, Kiryu, JP;
Takahiro Satou, Kiryu, JP;
Haruyo Kobayashi, Kiryu, JP;
Yoshiharu Segawa, Shioya, JP;
Naoki Oikawa, Shioya, JP;
Syu Murayama, Shioya, JP;
Kentaro Yamanaka, Shioya, JP;
Yuhki Jyo, Shioya, JP;
YAMADA MANUFACTURING CO., LTD., Kiryu-Shi, JP;
KEIHIN CORPORATION, Tokyo, JP;
Abstract
A hydraulic control apparatus is provided including: an electromagnetic valve that has an input port communicating with a supply destination unit of oil and a control port that is switched between communication and disconnection by resultant force of a hydraulic pressure of the supply destination unit and electromagnetic force; a variable displacement pump which has a suction port communicating with a supply source of the oil, an ejection port communicating with the supply destination unit, and a control chamber communicating with the control port and rotates in accordance with drive of the supply destination unit, in which an amount of the oil ejected to the supply destination unit through the ejection port changes in accordance with a pressure in the control chamber; and a control unit that controls a value of a necessary current that is caused to flow through the electromagnetic valve.