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:
Sep. 20, 2011
Filed:
Feb. 23, 2006
Satoshi Umemura, Aichi, JP;
Masaki Ota, Aichi, JP;
Masahiro Kawaguchi, Aichi, JP;
Ryosuke Cho, Tokyo, JP;
Keigo Shirafuji, Tokyo, JP;
Toshiaki Iwa, Tokyo, JP;
Satoshi Umemura, Aichi, JP;
Masaki Ota, Aichi, JP;
Masahiro Kawaguchi, Aichi, JP;
Ryosuke Cho, Tokyo, JP;
Keigo Shirafuji, Tokyo, JP;
Toshiaki Iwa, Tokyo, JP;
Eagle Industry Co., Ltd., Aichi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi, JP;
Abstract
A capacity control valve includes a valve body having a first valve portion for opening/closing a discharge-side path and a second valve portion for opening/closing a suction-side path, a pressure sensitive body arranged in a third valve chamber in the middle of the suction-side path, a valve seat body provided at the pressure sensitive body, and a third valve portion connected to the valve body for opening/closing the suction-side path by engagement and disengagement with the valve seat body. One of an engagement face of the third valve portion and a seat face of the valve seat body is formed into a spherical shape with a radius of curvature R satisfying 9 mm<R<11 mm and the other of the engagement face of the third valve portion and the seat face of the valve seat body is formed into a tapered surface shape having a center angle α satisfying 120°<α<160°. As such, a liquid refrigerant or the like accumulating in the control chamber can be discharged efficiently, and predetermined capacity control can be carried out rapidly.