Fluid control valve with tubular poppet

Details Fluid control valve with tubular poppet Fluid control valve with tubular poppet

1989-09-21

1991-04-16

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13751615, 13762538, F16K 1508

Patent

active

050074547

ABSTRACT:
A fluid control valve comprises a slidable, tubular poppet member that is biased toward and sealingly engages dual concentric annular valve seats, which valve seats define an annular opening through which the fluid medium flows when the valve is open. When the system pressure reaches a threshold pressure the poppet member is axially displaced from the valve seats such that an annular orifice is opened between the inside edge of the poppet and the inside valve seat and another orifice is formed between the outside edge of the poppet and the outside valve seat through which orifices the fluid medium flows into a central, axially extending relief path partially defined by the inside of the poppet. The dual orifices allow the valve to open with a stroke that is about one-half that of that required in a valve with only one orifice and similar operating range.

REFERENCES:
patent: 556023 (1896-03-01), Pew
patent: 643117 (1900-02-01), Fromberger
patent: 795999 (1905-08-01), Mueller
patent: 4026322 (1977-05-01), Thomas
patent: 4140148 (1979-02-01), Richter
patent: 4766924 (1988-08-01), Lee et al.
patent: 4766930 (1988-08-01), Patti

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