Title:
容積セレクタとブレーキシステムとを有する油圧モータ装置
Document Type and Number:
Japanese Patent JP2004517256
Kind Code:
A
Abstract:
Hydraulic motor drive apparatus having a cubic capacity selector ( 16 ) which has at least two positions, control means for controlling the selector, which means comprise a hydraulic control chamber ( 18 ) suitable for being fed with fluid via a control duct ( 20 ), and first opposing return means ( 17 ). The apparatus further comprises a brake system having a brake release chamber ( 38 ) and second opposing return means ( 39 ). The control duct ( 20 ) is suitable for being connected to the brake release chamber ( 38 ), and the first return means ( 17 ) are suitable for returning the cubic capacity selector to its large cubic capacity first position when the pressure in said chamber becomes lower than a first threshold pressure, whereas the second return means ( 39 ) return the brake means ( 36 ) to their braking position when the pressure in the brake release chamber becomes lower than a second threshold pressure, which is itself lower than said first threshold pressure.
Inventors:
Bigo, louis
Rujichka, Daniel
Aral, Bernard
Rujichka, Daniel
Aral, Bernard
Application Number:
JP2002554389A
Publication Date:
June 10, 2004
Filing Date:
December 20, 2001
Export Citation:
Assignee:
Poclan Idollik Andustri
International Classes:
F03C1/26; F03C1/40; F15B11/08; F16D63/00; (IPC1-7): F03C1/26; F15B11/08
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Makoto Suhara