Rotary expansible chamber devices – Non-metallic working member – cylinder or partition
Patent
1998-03-17
2000-04-25
Nguyen, Hoang
Rotary expansible chamber devices
Non-metallic working member, cylinder or partition
418171, 418179, F01C 2100
Patent
active
060537183
ABSTRACT:
An internally or externally geared pump for conveying fluids lacking or only having insufficient lubricating ability, includes gearwheels moving in an operating chamber of the pump, conveying fluids and being mounted completely in parts formed of a carbon material. Supports are formed from accurately worked lateral walls and a jacket of the operating chamber formed of the carbon material. The jacket surrounds the gearwheels in the radial direction and is likewise constructed as a support. Chambers on the suction side and on the pressure side for fluid supply and fluid removal, which are necessary for the operation of the pump, are molded into side walls of the operating chamber which is formed of carbon.
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Schmidt Eugen
Schmidt Herbert
Thiele Walter
Geraete und Pumpenbau GmbH
Greenberg Laurence A.
Lerner Herbert L.
Nguyen Hoang
SGL Carbon AG
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