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Title:
ELECTROHYDRAULIC SERVO MOTOR
Document Type and Number:
Japanese Patent JP2000213501
Kind Code:
A
Abstract:

To provide an electrohydraulic servo motor having compact structure by improving the arrangement of a spool valve.

This electrohydraulic servo motor is provided with a main spool valve 54, which is arranged normal to an output shaft 34 and is moved in the axial direction by hydraulic pressure, and a pilot spool valve 52, which is engaged with the output shaft 34 and a revolving shaft 51 of a motor 50 so as to move in the axial direction through relative rotation of both shafts (34, 50) in order to regulate the supply/discharge of working oil through its movement in the axial direction, varying the hydraulic pressure acting on the main spool valve 54.


Inventors:
Asano, Yoji
Shimizu, Nobuaki
Application Number:
JP1999000013631
Publication Date:
August 02, 2000
Filing Date:
January 21, 1999
Export Citation:
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Assignee:
TEIJIN SEIKI CO LTD
International Classes:
F15B9/08; F03C1/253; (IPC1-7): F15B9/08; F03C1/253
Attorney, Agent or Firm:
有我 軍一郎



 
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