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:
Jan. 08, 2019
Filed:
Mar. 04, 2016
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Nachi Fujikoshi Corp., Tokyo, JP;
Yukihiro Noda, Ichinomiya, JP;
Shuichi Takeda, Anjo, JP;
Katsutoshi Komatsu, Nishio, JP;
Hiroyuki Kutsubo, Nagoya, JP;
Masamichi Yamaguchi, Anjo, JP;
Masayuki Hara, Kurobe, JP;
Syunji Miyanishi, Toyama, JP;
Kazuhiro Yoshii, Nanto, JP;
Makoto Miyatake, Toyama, JP;
AISIN AW CO., LTD., Anjo-shi, Aichi-ken, JP;
NACHI FUJIKOSHI CORP., Minato-ku, Tokyo, JP;
Abstract
An electromagnetic valve for a transmission-use oil pressure control device including an oil pump that supplies oil pressure to a transmission, and an accumulator that accumulates an oil pressure generated by the oil pump. The electromagnetic valve includes: an electromagnetic valve main body connected to the accumulator and includes an oil path opening/closing valve element opening/closing an oil path between the accumulator and the transmission; a seal member disposed in the electromagnetic valve main body sealing against oil leakage from a sliding portion of the oil path opening/closing valve element in the opening/closing operation of the oil path opening/closing valve element; and a pressure regulation mechanism disposed in the electromagnetic valve main body regulating to release an internal pressure in the accumulator when an accumulator-side oil pressure in the electromagnetic valve main body rises to a predetermined pressure or more.