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Machine translation
1. (WO1981000893) BIDIRECTIONAL,MULTIPLE SPEED HYDRAULIC ACTUATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000893    International Application No.:    PCT/US1979/000798
Publication Date: 02.04.1981 International Filing Date: 28.09.1979
IPC:
F15B 13/04 (2006.01), F15B 9/03 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00798 28.09.1979 WO
Title (EN) BIDIRECTIONAL,MULTIPLE SPEED HYDRAULIC ACTUATOR
(FR) MECANISME DE COMMANDE HYDRAULIQUE, BIDIRECTIONNEL ET A VITESSES MULTIPLES
Abstract: front page image
(EN)A bidirectional, multiple speed hydraulic actuator, including a differential piston (10, 24, 26). First and second ports (28, 30) are respectively in fluid communication with opposite sides of the piston and there is provided a pressure fluid supply line (40) along with a pressure fluid drain line (44). A control valve (14) is disposed between the ports and the lines and is movable step-wise through five positions providing for nulling of piston movement, and slow and rapid piston movement in either of two directions. A shifting device (60) is provided for the valve.
(FR)Mecanisme de commande hydraulique, bidirectionnel, a vitesses multiples, comprenant un piston differentiel (10, 24, 26). La premiere et la deuxieme fenetres (28, 30) sont respectivement en communication fluide avec les cotes opposes du piston et une conduite (40) d"alimentation de fluide sous pression est prevue ainsi qu"une conduite (44) de decharge de fluide sous pression. Une vanne de commande (14) est disposee entre les fenetres et les conduites et peut etre reglee par echelons sur 5 positions permettant l"annulation du deplacement du piston, et un deplacement lent et rapide du piston dans chacune de deux directions. Un dispositif d"inversion (60) est prevu pour la soupape.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)