Fluidic fuel control for advanced ramjet engines

Details Fluidic fuel control for advanced ramjet engines Fluidic fuel control for advanced ramjet engines

1985-06-28

1987-02-03

Jordan, Charles T.

Power plants

Reaction motor

Condition responsive thrust varying means

137501, 137831, F02K 300, F16K 3112, F16K 3136, F15C 104

Patent

active

H00002216

ABSTRACT:
A ramjet fuel control system that provides a regulated fuel pressure of a predetermined differential between the fuel pump pressure and the inlet pressure to a metering valve. The differential regulator uses a spool valve and sleeve in which the sleeve has ports positioned to prevent hydrodynamic flow force while the sleeve metering valve spool has rectangular ports so that the metering area which is uncovered by the spool is linearly related to the stroke of the valve spool.

REFERENCES:
patent: 1797233 (1931-03-01), Huebotter
patent: 2761280 (1956-09-01), Atkinson
patent: 3080713 (1963-03-01), Silver
patent: 3123128 (1964-03-01), Zeisloft
patent: 3371698 (1968-03-01), Hitzelberger et al.
patent: 3633603 (1972-01-01), Furlong et al.
patent: 4138089 (1979-02-01), McCarthy
patent: 4475519 (1984-10-01), Eheim et al.
Clark; "Compensation of Steady State Flow Forces in Spool-Type Hydraulic ves"; Transactions of the ASME; Nov. 1957, pp. 1784-1788.

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