Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Alvin H Berger0
Date of Patent
December 29, 2009
0Patent Application Number
109041200
Date Filed
October 25, 2004
0Patent Primary Examiner
Patent abstract
A variable output gerotor pump includes outer and inner driven and driving rotors and an annular output control ring which is rotatable within a bore mounted within the pump's body so as to change the amount of working fluid which is transferred from the inlet port to the outlet port of the pump. This is particularly useful for controlling the output flow of lubricating oil used in an internal combustion engine.
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