Flow metering injection controller

Details Flow metering injection controller Flow metering injection controller

1992-06-26

1994-02-01

Fox, John C.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137500, F16K 3112

Patent

active

052824900

ABSTRACT:
A differential pressure regulator and accompanying system enabling accurate metering of fluid under high-pressure, low-flow conditions. An annular passage within the fluid flow path of the regulator creates an additional pressure drop within the regulator to reduce fluid velocity within the regulator and associated wear problems. A ball and seat mechanism is specially sized with respect to a piston and provides improved accuracy.

REFERENCES:
patent: 1590275 (1926-06-01), Bayless
patent: 1688812 (1928-10-01), Huff
patent: 2141715 (1938-12-01), Hilger
patent: 2272684 (1942-02-01), Vickers
patent: 3028876 (1962-04-01), Gratzmuller
patent: 3083721 (1963-04-01), Matthews
patent: 3194254 (1965-07-01), Zmek
patent: 3602252 (1971-08-01), Barnes
patent: 3885590 (1975-05-01), Ford
patent: 4245669 (1981-01-01), Schmidt
patent: 4483485 (1984-11-01), Kamiya et al.
patent: 4629561 (1986-12-01), Shirato et al.
patent: 4813443 (1989-03-01), Pounder

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