Valve with variable secondary orifice

Details Valve with variable secondary orifice Valve with variable secondary orifice

1976-11-15

1978-12-19

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Pop valves

137478, F16K 1720

Patent

active

041301307

ABSTRACT:
A valve comprising inlet means having a bore, a seat at one end of the bore and an annular outer edge portion. A primary orifice is defined by a valve member and the seat, and a secondary orifice is defined by the valve member and the outer edge portion. The valve member has a shroud portion formed to cause the cross sectional flow area of the secondary orifice to increase at a nonlinear rate as the valve member is raised from the seat. With these parts formed to provide a huddling chamber communicating between the primary and secondary orifices, the valve has a quick full opening, non-vibratory characteristic suitable for spring-loaded liquid pressure safety relief service.

REFERENCES:
patent: 1231330 (1917-06-01), Clark
patent: 1233752 (1917-07-01), Clark
patent: 1690097 (1928-11-01), Ackermann
patent: 2035129 (1936-03-01), Hopkins
patent: 2517858 (1950-08-01), Farris
patent: 2799291 (1957-07-01), Orr
patent: 2821208 (1958-01-01), Farris
patent: 2878828 (1959-03-01), Klafstad
patent: 3001545 (1961-09-01), Ziege
patent: 3354900 (1967-11-01), Ferrill

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