Title:
FLUID SERVO ACTUATOR
Document Type and Number:
WIPO Patent Application WO/1984/004784
Kind Code:
A1
Abstract:
A fluid servo actuator comprises an input member (30) which can be rotated by drive means (24), (25) and which is provided with tubes (52), (44) capable of supplying and discharging hydraulic fluid and grooves (53(a), 53(b), 53(c), 53(d)) communicating with the tubes; an output member (4) which constitutes a shaft and which is provided with grooves (60(a), 60(b), 60(c), 60(d)) formed in the surface thereof facing the grooves in the input member and a tube (45) communicating with the grooves (60(a), 60(b), 60(c), 60(d)); an outer case (21), (22), (23) which hermetically seals the output and input members and houses the drive means; and working chambers (62a), (62b) which are defined between the outer case and the output member and which communicate with the tube in the output member, and which enable the output member to rotate by the supply and discharge of hydraulic fluid flowing through the tube. This fluid servo actuator makes it possible to reduce the size of the actuator body and simplify the hydraulic piping.
More Like This:
| JPS5560706 | STABILIZED HYDRAULIC DEVICE |
Inventors:
MARUYAMA TERUO (JP)
SEKIGUCHI TAKUYA (JP)
SEKIGUCHI TAKUYA (JP)
Application Number:
PCT/JP1984/000249
Publication Date:
December 06, 1984
Filing Date:
May 18, 1984
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
International Classes:
F15B9/08; F15B9/09; (IPC1-7): F15B9/09
Foreign References:
| JPS461211B1 | ||||
| JPS49121093A | 1974-11-19 | |||
| JPS5491695A | 1979-07-20 |
Other References:
See also references of EP 0144439A4
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