Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1995-12-27
1998-08-25
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137487, 137500, 137508, G05D 703
Patent
active
057974187
ABSTRACT:
A differential pressure detector for providing an output pressure modulated as a function of the pressure drop between the pressures upstream and downstream of a fuel metering device, comprising first and second input chambers for connection to said upstream and downstream pressures respectively, a modulated pressure output chamber, a sleeve which is linearly movable in response to changes in the difference between the pressures in the first and second input chambers, and a fixed slide valve which is partly received in the sleeve and which has a bore opening into the output chamber and at least one side port for communicating the first input chamber with the output chamber via the slide valve bore, the aperture of the side port being varied by linear movement of the sleeve to control the communication between the first input chamber and the output chamber. The detector has reduced reaction forces and is particularly suitable for use in a fuel flow regulating system.
REFERENCES:
patent: 1050763 (1913-01-01), Cooper
patent: 1477244 (1923-12-01), Collins
patent: 2079915 (1937-05-01), Midyette
patent: 2270097 (1942-01-01), Weining
patent: 2796879 (1957-06-01), Jacobson
patent: 2842149 (1958-07-01), Donaldson
patent: 4589440 (1986-05-01), Panet
patent: 5433237 (1995-07-01), Kao
Farid Ramyar
Hepperle Stephen M.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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