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:
May. 06, 2014
Filed:
Mar. 03, 2011
Motoaki Okuda, Aichi-ken, JP;
Masaki Ota, Aichi-ken, JP;
Masakazu Murase, Aichi-ken, JP;
Shun Sumikawa, Aichi-ken, JP;
Hiromi Ueda, Aichi-ken, JP;
Motoaki Okuda, Aichi-ken, JP;
Masaki Ota, Aichi-ken, JP;
Masakazu Murase, Aichi-ken, JP;
Shun Sumikawa, Aichi-ken, JP;
Hiromi Ueda, Aichi-ken, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi-Ken, JP;
Abstract
The variable displacement compressor has a suction-pressure region, a discharge-pressure region and a crank chamber. The compressor includes a supply passage, a bleed passage and a control valve that adjusts cross-sectional area of the bleed passage. The control valve includes a valve chamber, a valve portion and a valve seat member. The valve portion is disposed in the valve chamber for dividing the valve chamber into a bleed chamber, a backpressure chamber and a communication passage. The bleed chamber forms a part of the bleed passage. The backpressure chamber communicates with the supply passage. The communication passage is formed between an outer circumferential surface of the valve portion and an inner circumferential surface of the valve chamber for providing fluid communication between the bleed chamber and the backpressure chamber. The valve seat member is disposed in the bleed chamber and provided separately from a compressor housing forming the valve chamber.