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. 12, 2010
Filed:
Jun. 08, 2006
Ryosuke Cho, Tokyo, JP;
Yoshihiro Ogawa, Tokyo, JP;
Kohei Fukudome, Tokyo, JP;
Eagle Industry Co., Ltd., Tokyo, JP;
Abstract
A capacity control valve has a communication path () for communicating a discharge chamber () and a control chamber (); one valve chamber () in the middle of the communication path (); communication paths () for communicating a suction chamber () and the control chamber (); the other valve chamber () in the middle of the communication path (); a valve body () including a first valve section () that opens and closes the communication path () and a second valve section () that opens and closes the communication path (), the first and second valve sections being placed in the valve chamber () and performing the opening and closing operation in a manner opposite to each other; and a solenoid () for moving the valve body (). The valve body () has a pressure receiving section () at its end section that is across the second valve section () from the first valve section (), and the pressure receiving section () receives pressure in the control chamber. The pressure receiving area Sof the pressure receiving section () is substantially the same as the difference between the pressure receiving area Sof the second valve section () and the pressure receiving area Sof the first valve section. The valve is reduced in size, an influence of the pressure in the control chamber is minimized, and stable capacity control with excellent response is enabled.