Drive systems
AssigneeConcentric Pumps Limited
InventorStephen Mark Hodge
Life of this patent
Estimating the term…
Abstract
A hydrostatic drive comprises a motor and a gerotor pump having its annulus or its rotor axially split into two parts of unequal length, one of the two parts being angularly shiftable relative to the other to enable the drive to be shifted between forward, reverse, and neutral conditions.
Claims6
A hydrostatic drive comprising a gerotor pump supplying hydraulic fluid to a motor, said gerotor pump having an annulus member and a male lobed rotor member engaging one another, the male lobed rotor member being axially split into two end-to-end separate parts of unequal axial length with respect to the rotational axis of the male lobed rotor member, and means for angularly shifting one of said separate parts relative to the other.
A hydrostatic drive as claimed in any one of the preceding claims providing forward, neutral and reverse drive.
A hydrostatic drive comprising a gerotor pump for supplying hydraulic fluid to a motor, the gerotor pump having an annulus member and a male lobed rotor member engaging one another the male lobed rotor member being axially split into two end-to-end separate parts of unequal axial length with respect to the rotational axis of the male lobed rotor member, and means for angularly shifting one of said separate parts relative to the other.
Dependencies are inferred from the claim text.