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. 12, 1989
Filed:
Feb. 19, 1988
Sei Kikuchi, Gunma, JP;
Kiyoshi Terauchi, Gunma, JP;
Kazuhiko Takai, Gunma, JP;
Teruo Higuchi, Gunma, JP;
Sanden Corporation, Gunma, JP;
Abstract
A wobble plate compressor with a variable displacement mechanism is disclosed. The compressor includes a compressor housing having a crank chamber and a cylinder block. A plurality of cylinders is formed in the cylinder block. A drive shaft is rotatably supported in the housing. A rotor is fixed on the drive shaft and is hingedly connected to an inclined plate through a hinge mechanism. The hinge mechanism includes a first arm portion which is formed on either the rotor or inclined plate, a second arm portion having an elongated hole on the other of the rotor or the inclined plate, and a guide pin fixedly disposed in the hole of the first arm portion. A wobble portion is disposed adjacent the inclined plate and converts rotational motion of the inclined plate into nutational motion. A plurality of pistons are coupled to the wobble plate through a plurality of piston rods. Each piston is reciprocatingly fitted within a respective one of the cylinders. The stroke volume of the pistons changes according to the variation of the angle of the angle of the inclined plate. The elongated hole is formed so that the top clearance of the piston is a minimum when the angle of the inclined plate is largest, and the top clearance of the piston is a maximum when the angle of the inclined plate is smallest. The elongated hole is oriented in a manner that while the range of the inclined angles of the inclined plate is small, the capacity range variance for the compressor is large.