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:
Mar. 10, 2020
Filed:
Jun. 01, 2017
Aisin Seiki Kabushiki Kaisha, Kariya-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Daisuke Toyama, Anjo, JP;
Shinya Amano, Anjo, JP;
Yoshikuni Sue, Anjo, JP;
Hisashi Ono, Okazaki, JP;
Shingo Okazawa, Toyota, JP;
Michitaka Yamamoto, Okazaki, JP;
Daisuke Okanishi, Toyota, JP;
Noboru Takagi, Toyota, JP;
Takayuki Hosogi, Toyota, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A solenoid valve includes: a cylindrical spool that has an annular groove in an outer surface and moves along an axial direction under a driving force generated by a current being applied to a solenoid part; a cylindrical sleeve that has a through-hole capable of communicating with the annular groove and houses the spool; and an urging member that urges the spool by an urging force acting in a direction opposite from a direction in which the driving force is generated. When no current is applied to the solenoid part, a part of the through-hole communicates with the annular groove. When a current is applied to the solenoid part, an area of communication between the through-hole and the annular groove increases as the spool moves under the driving force acting against the urging force.