Patent ID: 8684710

Claim:
A two-speed gerotor motor comprising: a rotor set including a stator and a rotor rotating and orbiting with respect to the stator to define n+1 expanding and contracting fluid pockets; an output shaft operably connected with the rotor; a commutator valve operably connected with the rotor for rotation with the rotor, the commutator valve including a plurality of valve passages for providing fluid to and receiving fluid from the fluid pockets; and a distributor assembly disposed between the rotor set and the commutator valve, the distributor assembly comprising: a distributor housing including an axial bore extending in an axial direction through the distributor housing; and a valve selector plate disposed in the axial bore and being rotatable about a rotational axis parallel to the axial direction between a first orientation and a second orientation, the valve selector plate including a first substantially planar face, a second substantially planar face, axial passages radially offset from the rotational axis and extending through the valve selector plate from the first face to the second face, and at least one fluid blocking section configured to block axial flow through the distributor assembly and interposed between and radially aligned with the axial passages with respect to the rotational axis.