Variable pressure valve

Details Variable pressure valve Variable pressure valve

1980-02-11

1981-11-24

Spiegel, H. Jay

Combustion

Timer, programmer, retarder or condition responsive control

Responsive to combustion chamber pressure

431 90, 137100, 251122, G05D 1103

Patent

active

043021786

ABSTRACT:
The pneumatically controlled, variable oil pressure regulator of the present invention maintains a selected combustion ratio of oil and air to a furnace and includes in preferred embodiments a diaphragm housing for a flexible air diaphragm and a flexible oil diaphragm, each preferably including a rolled peripheral lip portion for maximum extensibility and connected to a valve plug having the shape of a solid of revolution formed by rotating a convexly curved surface such as an arc of a circle of less than approximately 90.degree. or a corresponding portion of a hyperbolic, parabolic, or elliptical curve, which intersects the longitudinal axis of the valve plug stem about the longitudinal axis thereof to approximate an ellipsoidal shape whereby very low minimum flow rates can be effected without oscillation of the valve.

REFERENCES:
patent: 2382625 (1945-08-01), Garretson
patent: 2432274 (1947-12-01), Barr
patent: 2720378 (1955-10-01), Otto
patent: 2852032 (1958-09-01), Moore
patent: 2873173 (1959-02-01), Neumeyer
patent: 2960995 (1960-11-01), Hague
patent: 3002550 (1961-10-01), Schreter
patent: 3007516 (1961-11-01), Turpin
patent: 3013767 (1961-12-01), DeHaven
patent: 3045745 (1962-07-01), Turpin
patent: 3158998 (1964-12-01), Robinson et al.
patent: 3404702 (1968-10-01), Telford
patent: 3419339 (1966-12-01), Schreter et al.
patent: 3493005 (1970-02-01), Kakegawa
patent: 3630224 (1971-12-01), Kalvelage
patent: 3709461 (1973-01-01), Johnson
patent: 3724504 (1973-04-01), Matsui et al.
patent: 3945302 (1976-03-01), Downs
patent: 4020861 (1977-05-01), Shihabi

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