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. 28, 1991
Filed:
Feb. 03, 1989
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Aichi, JP;
Abstract
A control circuit unit for controlling the energization of a solenoid of a solenoid-operated capacity control unit incorporated in a a variable capacity compressor, typically, a variable capacity wobble plate type refrigerant compressor for a car air-conditioner, having a switching unit for establishing an electric conduction of the energizing circuit of the solenoid when the solenoid-operated valve is actuated for changing the compressor capacity, and an electric energizing voltage control circuit used to apply a high electric starting voltage to the solenoid emergizing circuit at a predetermined initial starting time of the solenoid, and a low electric retaining voltage required for retention of the energization of the solenoid valve after the predetermined starting time has elapsed.