WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1981000287) DISPLACEMENT CONTROL VALVING FOR A RADIAL PISTON DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000287    International Application No.:    PCT/US1979/000499
Publication Date: 05.02.1981 International Filing Date: 16.07.1979
IPC:
F01B 13/06 (2006.01), F03C 1/36 (2006.01), F03C 1/40 (2006.01)
Applicants:
Inventors:
Priority Data:
US79/00499 16.07.1979 WO
Title (EN) DISPLACEMENT CONTROL VALVING FOR A RADIAL PISTON DEVICE
(FR) SOUPAPE DE COMMANDE DE DEPLACEMENT POUR UN DISPOSITIF DE PISTON
Abstract: front page image
(EN)A radial piston device such as a radial piston motor (10) has a rotor assembly (34) rotatably positioned within a cylindrical race (43) which is movable to a first displacement position by a first piston (52) and a second displacement position by a second piston (53). A pintle (26) extends into a bore (36) of a rotor (33) of the rotor assembly (34) and has first and second ports (27, 28) for delivering fluid to and from the rotor (33). In order to reduce the size of the radial piston device and to minimize the number of external lines, a control valve (66) is positioned within a bore (59) of the pintle (26) and selectively controls fluid flow from one of the first and second ports (27, 28) to the first and second pistons (52, 53) for shifting the cylindrical race (43) between the first and second positions.
(FR)Un dispositif a piston radial tel qu"un moteur a piston radial (10) possede un ensemble rotor (34) monte en rotation dans une cage cylindrique (43) qui est mobile vers une premiere position de deplacement sous l"action d"un premier piston (52) et une seconde position de deplacement sous l"action d"un second piston (53). Un teton (26) s"etend dans un alesage (36) d"un rotor (33) de l"ensemble rotor (34) et possede un premier orifice et un second orifice (27, 28) d"amenee du fluide au rotor (33) et depuis celui-ci. De maniere a reduire les dimensions du dispositif a piston radial et a reduire au minimum le nombre de lignes externes, une soupape de commande (66) est positionnee dans un alesage (59) du teton (26) et commande de maniere selective le debit de fluide provenant de l"un des premier et second orifices (27, 28) vers le premier et le second piston (52, 53) pour deplacer la cage cylindrique (43) entre la premiere et la seconde position.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)