Balanced, two-stage poppet valve for fuel dispensing nozzle

Details Balanced, two-stage poppet valve for fuel dispensing nozzle Balanced, two-stage poppet valve for fuel dispensing nozzle

1985-10-11

1986-06-24

Marcus, Stephen

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

141392, 141210, B67D 5373

Patent

active

045962782

ABSTRACT:
A balanced, two-stage pressure poppet valve for a fuel dispensing nozzle is disclosed, with the valve controlling the dispensing of fuel. When the valve is closed, fluid pressure aids in holding the valve in its closed position and, upon effecting opening of the valve, a first valve member is opened thereby to dump the fuel pressure acting on the valve holding it closed immediately prior to opening of the main valve member so that only the biasing force of a spring (and not the fuel pressure forces) need be overcome to open the valve for fuel dispensing purposes. Further, a flexible flow stabilizer member is positioned downstream from the main valve so as to reduce turbulence in the flow path of the dispensing nozzle and to minimize flow and pressure surges. Also, an improved configuration of a check valve in the nozzle is disclosed.

REFERENCES:
patent: 3042083 (1962-07-01), Kruckeberg
patent: 3088500 (1963-05-01), Payne
patent: 3502121 (1970-03-01), Moore et al.
patent: 3651837 (1972-03-01), Murray
patent: 3817285 (1974-05-01), Wilder et al.
Sketch of Dover Corp., poppet valve by OPW Division.

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