Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1977-12-30
1980-10-21
Cline, William R.
Fluid handling
Line condition change responsive valves
Direct response valves
1375145, 137536, 13754321, 13754323, F16K 1502
Patent
active
042288207
ABSTRACT:
A seat guided poppet valve for fluid compressors and the like having improved flow directing characteristics provided by a poppet element having integral flutes surrounded by a shroud and variable dampening provided by adjustable seals or dashpots. The dashpot may reciprocate with the poppet element or be constrained within the guard. A seat seal is established by conventional abutment of the poppet element head surface with the seat outlet port seating surface, or by eliminating that portion of the poppet element head overhanging the seat outlet port so that the circumferential surface of the head makes a sliding seal with the inner surface of the seat bore. Additional sealing may be provided by a resilient ring entrained within a groove inscribed in the circumferential surface of the poppet element head, or by constructing the circumferential surface of a resilient material which deforms as the head enters the seat bore. Lift washers are provided to control the amount of valve lift.
REFERENCES:
patent: 558034 (1896-04-01), Brown, Jr. et al.
patent: 609726 (1898-08-01), Ball
patent: 843988 (1907-02-01), Barton
patent: 1105255 (1914-07-01), Caskey
patent: 1377199 (1921-05-01), Granby
patent: 2094951 (1937-10-01), Kowan
patent: 3701361 (1972-10-01), Bunn et al.
patent: 4048905 (1977-09-01), Souslin
Cline William R.
The Yorde Machine Products Company
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