Fluidic control system including variable venturi

Details Fluidic control system including variable venturi Fluidic control system including variable venturi

1981-10-02

1983-06-14

Miles, Tim R.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123440, 7386153, 7386163, 261DIG56, 261 23A, 261 53, 261 44D, F02M 914

Patent

active

043876854

ABSTRACT:
A fluidic control system provided with a variable Venturi structure whose movable element is automatically shifted as a function of the mass-volume of fluids passing through the structure to produce an output which depends on the adjusted position of the element or the resultant velocity-pressure. The system is applicable to the metering, proportioning and blending of fluids. In the context of an internal combustion automotive engine in which the variable Venturi structure acts to intermingle combustion air and fuel prior to ignition, the system provides a stoichiometric or other ratio of air-to-fuel that represents the optimum value for the prevailing condition of engine speed and load throughout a broad operating range, thereby effecting a marked improvement in fuel economy and reducing the emission of pollutants.

REFERENCES:
patent: 1063866 (1913-06-01), Filson
patent: 1183137 (1916-05-01), Swarts
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patent: 2007337 (1935-07-01), Mallory
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patent: 3069146 (1962-12-01), MacNeill
patent: 3398937 (1968-08-01), Stoltman
patent: 3802671 (1974-04-01), Klutho
patent: 4110416 (1978-08-01), Sarto
Passini; Weber Carburetors; Speedsport Motorbooks; Brentford, Middlesex England; Apr. 1973, pp. 1-13.

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