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. 30, 2018
Filed:
Mar. 23, 2016
Tgk Co., Ltd., Tokyo, JP;
TGK CO., LTD., Tokyo, JP;
Abstract
A control valve includes: a body having a main passage through which a discharge chamber and a control chamber communicate, and a sub-passage through which the control chamber and a suction chamber communicate; a main valve seat provided in the main passage; a main valve element configured to touch and leave the main valve seat to close and open a main valve; a sub-valve seat provided in the sub-passage; a sub-valve element configured to touch and leave the sub-valve seat to close and open a sub-valve; a solenoid configured to generate a drive force in a valve closing direction of the main valve; an actuating rod for transmitting the drive force of the solenoid to the main valve element and the sub-valve element; a spring for applying a biasing force to the main valve in a valve opening direction; a spring for applying a biasing force to the sub-valve in a valve closing direction; and a differential pressure valve opening mechanism configured to open the sub-valve when a pressure difference between a control pressure in the control chamber and a suction pressure in the suction chamber becomes a preset pressure difference or larger.