Apparatus for providing relief to a working chamber

Details Apparatus for providing relief to a working chamber Apparatus for providing relief to a working chamber

1990-07-09

1992-01-21

Look, Edward

Motors: expansible chamber type

Constantly applied motive fluid with controlled venting

91443, 91449, 91461, F15B 1302

Patent

active

050819020

ABSTRACT:
For the relief of a highly pressurized hydraulic liquid in a working chamber of pilot controlled 2/2 poppet valve is used. The working chamber is further connected to a pressure relief valve, the output of which is connected to a control conduit extending between a control chamber of the 2/2 poppet valve and the pilot valve. The apparatus of the invention requires a shorter period of time for the pressure relief without the danger of relief noise.

REFERENCES:
patent: 3376792 (1968-04-01), Clarke et al.
patent: 3452645 (1969-07-01), Barltrop
patent: 3906838 (1975-09-01), Hofer
patent: 4687177 (1987-08-01), Hartwig
patent: 4811649 (1989-03-01), Heusser
patent: 4955283 (1990-09-01), Hidaka et al.

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