Patent ID: 8109747

Claim:
A variable output gerotor assembly comprising: a hydraulic mounting member having hydraulic porting formed therein, the hydraulic porting comprising a first pair of hydraulic passages extending from a first surface of the hydraulic mounting member to a second surface of the hydraulic mounting member, and a second pair of hydraulic passages extending from the first surface to a volume external to the hydraulic mounting member; a hydraulic pump assembly disposed on the first surface and comprising a gerotor pump rotatably positioned on a gerotor support member, the gerotor support member having a plurality of openings formed therein; a hydraulic motor assembly disposed on the second surface of the hydraulic mounting member; wherein the gerotor support member is movable between a plurality of positions with respect to the hydraulic mounting member, the plurality of positions comprising at least one first position where the gerotor support member permits fluid communication between the gerotor pump and the hydraulic motor assembly through at least one of the plurality of openings and the first pair of hydraulic passages, and at least one second position where the gerotor support member permits fluid communication between the gerotor pump and the external volume through at least one of the plurality of openings and the second pair of hydraulic passages.