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:
Apr. 17, 2001
Filed:
Apr. 20, 1999
Applicant:
Inventors:
Masaki Ota, Kariya, JP;
Taku Adaniya, Kariya, JP;
Kenta Nishimura, Kariya, JP;
Hirotaka Kurakake, Kariya, JP;
Assignee:
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/26 ;
U.S. Cl.
CPC ...
F04B 1/26 ;
Abstract
A control valve varies the displacement of a variable displacement compressor. A pressure chamber is connected to a suction chamber through a fixed throttle and to a discharge chamber through an intake passage. The intake passage includes a fixed throttle and an electromagnetic valve. A controller controls the electromagnetic valve in accordance with data related to the running conditions of the vehicle. The control valve has a threshold value that changes in accordance with the opening and closing of the electromagnetic valve.