Direct actuated valve control hydraulic pump and motor
AssigneePurdue Research Foundation
InventorsJohn Henry Lumkes, Tyler Scott Helmus, Farid Youssef El Breidi
Life of this patent
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Abstract
A control device for controlling a displacement pump or motor, comprising a variable mechanical device, comprising at least two masks, wherein the at least two masks are phased relative to each other and a shaft, and are configured to create a desired cam profile. A cam follower is operatively connected to at least one of an intake valve an output valve of a displacement pump or motor.
Claims5
A method for achieving flow diverting and flow limiting variable displacement control of a displacement pump or motor, comprising utilizing a variable mechanical device to provide a control signal for an intake and output valve operatively connected to said displacement pump or motor.
A control device for controlling a displacement pump or motor, comprising:
- a variable mechanical device, comprising at least two rotating cam masks,
- wherein the at least two masks are phased relative to each other and a shaft, and are configured to create a desired cam profile;
- and
- a cam follower operatively connected to at least one of an intake valve and an output valve of a displacement pump or motor.
Dependencies are inferred from the claim text.