EP 0807212 B1 20010411 - DEVICE FOR ACTUATING A HYDROSTATIC DRIVE
Title (en)
DEVICE FOR ACTUATING A HYDROSTATIC DRIVE
Title (de)
VORRICHTUNG ZUM ANSTEUERN EINES HYDROSTATISCHEN ANTRIEBES
Title (fr)
DISPOSITIF POUR ACTIONNER UNE COMMANDE HYDROSTATIQUE
Publication
Application
Priority
- AT 9600015 W 19960131
- AT 16995 A 19950201
Abstract (en)
[origin: US5974800A] PCT No. PCT/AT96/00015 Sec. 371 Date Aug. 1, 1997 Sec. 102(e) Date Aug. 1, 1997 PCT Filed Jan. 31, 1996 PCT Pub. No. WO96/23980 PCT Pub. Date Aug. 8, 1996A device for the operation of a hydrostatic drive (1) having a periodically operable switch valve (2) which connects a resonant pipe (4) connected with the hydrostatic drive (1) for the formation of standing pressure waves in the hydraulic fluid under resonant conditions alternately to a pressure-fluid supply line (5) and to a return line (6). In order to create advantageous control condition, the resonant pipe (4) has a pressure outlet (7) in an oscillation node in the standing pressure waves, and that the switch times of the switch valve (2) be controllable with constant switch frequency.
IPC 1-7
IPC 8 full level
B06B 1/20 (2006.01); F15B 21/04 (2006.01); F15B 21/12 (2006.01)
CPC (source: EP US)
B06B 1/20 (2013.01 - EP US); F15B 21/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
WO 9623980 A2 19960808; WO 9623980 A3 19960926; AT 403219 B 19971229; AT A16995 A 19970415; AT E200559 T1 20010415; CZ 228597 A3 19971112; CZ 283346 B6 19980318; DE 59606770 D1 20010517; EP 0807212 A2 19971119; EP 0807212 B1 20010411; US 5974800 A 19991102
DOCDB simple family (application)
AT 9600015 W 19960131; AT 16995 A 19950201; AT 96901186 T 19960131; CZ 228597 A 19960131; DE 59606770 T 19960131; EP 96901186 A 19960131; US 89449497 A 19970801