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US 5,180,296 AGranted
Hydraulic machine having axial user ports
AssigneeMannesmann Rexroth GmbH
InventorHorst Mehling
Life of this patent
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Abstract
A circular piston engine or machine is provided having a rotor with outer teeth and fixedly connected for rotation with the shaft. The rotor cooperates with an outer gear having inner teeth. The outer gear is supported by the housing at its outside and the user ports extend axially in the control housing.
Claims16
A hydraulic machine comprising:
- a housing,
- a rotor rotatably mounted in said housing, said rotor having outer teeth,
- a shaft to which said rotor is fixedly mounted for rotation therewith,
- an outer gear rotatably mounted having inner teeth for cooperation with said outer teeth of said rotor, said housing being adapted to support said outer gear from the outside,
- a commutator mounted sideways with respect to said rotor and said outer gear with a control disc therebetween, said commutator having a plurality of control slots, said control slots forming a first group and second group, said commutator being stationary with respect to said housing,
- supply and discharge bores provided in said control disc,
- a control housing for receiving said commutator and mounted to said control housing,
- a first ring chnanel and a second ring channel axially spaced in said control housnig, said first and second ring channels extending radially and surrounding said commutator,
- user ports disposed in said control housing,
- wherein said commutator is configured to allow said user ports to extend from said housing in an axial or radial direction.
7 more elements
Dependencies are inferred from the claim text.