Rotary expansible chamber devices – Non-metallic working member – cylinder or partition
Patent
1994-07-08
1995-12-05
Bertsch, Richard A.
Rotary expansible chamber devices
Non-metallic working member, cylinder or partition
418166, F01C 2110
Patent
active
054723299
ABSTRACT:
A gerotor pump having reduced drag torque at low temperatures is disclosed. The pump includes a shaft journalled in the housing. Mounted on the shaft are a pair of axially space metallic port plates and disposed therebetween are metallic interior and exterior gears. A ceramic eccentric ring circumscribes the exterior gear to define a diametral clearance.
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Article from the Sep. 17, 1987 issue (p. 38) of "Machine Design" entitled Gear Pumps.
Maynard Frederick C.
Moon Eric D.
Wahl Robert E.
Allied-Signal Inc.
Bertsch Richard A.
Freay Charles G.
Holden Jerry J.
McFarland James W.
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