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Title: Hydraulic rotary actuator

Patent ·
OSTI ID:5420414

A hydraulic rotary actuator which comprises a harmonic drive and a hydraulic motor completely enclosed in the casing of the harmonic drive so that the rotation of the motor is taken out through an output shaft fixed to the drive at a reduced speed. In the casing of the harmonic drive there are provided an electromagnetic brake which acts on the motor, means for increasing the performance of the magnetic brake, means for magnetically shielding the supporting shaft of the hydraulic motor, and means for detecting the angular position of the motor and that of the output shaft relative to the supporting shaft of the motor.

Assignee:
Shimadzu Corporation (Japan)
Patent Number(s):
US 4506590
OSTI ID:
5420414
Resource Relation:
Patent Priority Date: Priority date 21 Jul 1983, Japan; Other Information: PAT-APPL-515604
Country of Publication:
United States
Language:
English