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:
Feb. 05, 1991
Filed:
Aug. 04, 1989
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Aichi, JP;
Abstract
A multi-piston swash plate type compressor with an internal lubricating arrangement for an air-conditioning system used in a vehicle such as an automobile including a cylinder block body having a swash plate chamber formed therein receiving a swash plate, cylinder bores formed therein for receiving pistons, and a central axial bore formed therein for receiving a driving shaft, the driving shaft being rotatably supported in the axial bore by radial bearings provided therein and by thrust bearings provided around the shaft at the sides of the swash plate. The compressor has suction and discharge chambers communicated with the cylinder bores through reed valves. The swash plate chamber is fed with a refrigerant inclusive of a lubricating oil from the air-conditioning system, and the refrigerant is then fed to the suction chamber through the axial bore. The thrust bearings have a race element surrounding the shaft, a clearance between the race element and the shaft being locally widened for increasing a flow rate of the refrigerant to be introduced into the axial bore through the thrust bearings.