Title:
電動モータによる静油圧ポンプの作動
Document Type and Number:
Japanese Patent JP2011522194
Kind Code:
A
Abstract:
A hydraulic motor system for improved frequency response includes a hydraulic variator having a pump and a motor, wherein the pump includes a variable angle swash plate, and the system further includes an electric actuator for controlling an angle or torque of the swash plate, thereby controlling the motor output characteristics. The electric actuator for controlling the variable angle swash plate may comprise a linear electric motor, ball screw drive or a rotary electric motor. In an example, the rotary electric motor tilts the swash plate by applying a torque to the swash plate at a point away from its tilt axis. In a further example, the rotary electric motor tilts the swash plate via a worm drive or ball screw drive.
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Inventors:
Brian Dee Course
Michael G. Cronin
Frank A. Demarco
Mustafa Guben
Michael jay burnglover
Michael G. Cronin
Frank A. Demarco
Mustafa Guben
Michael jay burnglover
Application Number:
JP2011512527A
Publication Date:
July 28, 2011
Filing Date:
May 26, 2009
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F16H39/10; F16H47/02
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office