Supply circuit for a two-tube hydraulic system

Details Supply circuit for a two-tube hydraulic system Supply circuit for a two-tube hydraulic system

1992-10-29

1994-01-25

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

137556, 137557, 13759616, 251 29, 251 3001, F15B 13044, F15B 1900, F15B 2000

Patent

active

052808076

ABSTRACT:
A supply circuit for a hydraulic fluid system has at least one pressure generation device, at least one connecting valve, a main line and a safety deactivation unit. The supply circuit permits a hydraulic fluid to be fed in such a way that, in all operating states, occurrence of pressure surges in the system is prevented. The connecting valve is designed as a slide valve with three control edges for regulating filling, operation and testing functions. A plate valve, in fluid communication with the slide control valve, is designed as an outflow amplifier and fulfills the safety related tasks.

REFERENCES:
patent: 4103592 (1978-08-01), Davis
patent: 4343454 (1982-08-01), Kure-Jensen et al.
patent: 4637587 (1987-01-01), Kuhnlein
patent: 5095804 (1992-03-01), Burch
patent: 5137253 (1992-08-01), Frey et al.
patent: 5143119 (1992-09-01), Plangger
patent: 5217199 (1993-06-01), Frey
English language copy of Swiss Patent Application CH 202390-7 (undated).

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