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US 6,318,502 B1Granted
Compressor for producing oil-free compressed air
OwnerHans Ungerinventor
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OwnerHans Ungerinventor
Estimating the term…
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.
Compressor for producing oil-free compressed air, with a transmission driven by a drive shaft, provided with a swash plate, and lubricated by oil, said transmission being connected by piston rods with pistons that act alternately against an oil-cooled cylinder head, with oil that serves to cool a pressure side of the compressor also being used to lubricate a transmission side,
Dependencies are inferred from the claim text.