Fuel control assembly incorporating an integral pressure drop mo

Details Fuel control assembly incorporating an integral pressure drop mo Fuel control assembly incorporating an integral pressure drop mo

1983-06-14

1985-03-05

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137495, F16K 31363, G05D 700

Patent

active

045025010

ABSTRACT:
A fuel flow control assembly comprises a metering piston which can slide within a casing and defines with that casing an upstream chamber at a pressures P.sub.1 and downstream pressure P.sub.2. Relative movement of the piston and the casing varies the effective opening of a metering orifice and providing that the pressure drop P.sub.1 -P.sub.2 is kept constant the orifice has linear characteristics.
The assembly also includes a pressure drop monitor and a slide control valve which uses as its casing an internal bore of the flow control piston. With a view to rendering the assembly more compact the pressure drop monitor is also disposed within the bore of the flow control piston.

REFERENCES:
patent: 2694406 (1954-11-01), Ayers
patent: 2763279 (1956-09-01), Godden
patent: 2988883 (1961-06-01), Corbett
patent: 3508575 (1970-04-01), Robinson

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