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:
Nov. 20, 2001
Filed:
Oct. 13, 1999
Hans Unger, D-85716 Unterschleissheim, DE;
Other;
Abstract
In a compressor that can be used for supplying compressed air in motor vehicles and also for stationary systems, permanent oil filling is provided for cooling a compressor pressure area including a cylinder head and for lubricating a transmission area including a drive shaft and swash plate. The pressure area of the compressor that can be heated by the heat of compression and friction and the transmission area of the compressor are separated from one another by check valves with a delivery pump wheel being provided which transports the oil between the transmission area and the pressure area in such fashion that the oil that is heated in the pressure area is cooled in the transmission area. By cooling the oil in the transmission area, it is possible for a middle housing section of the compressor housing, as well as a housing section delimited by a cylinder head and receiving the piston arrangement, to be made of plastic.