Variable throat venturi apparatus for mixing and modulating liqu

Details Variable throat venturi apparatus for mixing and modulating liqu Variable throat venturi apparatus for mixing and modulating liqu

1974-01-04

1976-04-06

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

261DIG56, 261DIG58, 138 45, F02M 906

Patent

active

039490254

ABSTRACT:
Discharge velocity of the air-fuel mixture being supplied through a variable venturi flow passage device to an internal combustion engine at idle to near idle operation of the engine is optimized by controllably varying the area ratio between the throat and exit planes of the device. Opposite jaw faces of the device define the flow passage that is gradually opened and closed in correlation to demand imposed on the engine between idle and full throttle operation. Area ratio control in one form is achieved by apparatus operative to selectively vary the diffuser angle between the opposing jaw faces. Area ratio control in another form is achieved by apparatus operative to effect a localized passage opening at idle of selectively different aspect ratio than the aspect ratio defined over the full longitudinal extent of the jaw faces.

REFERENCES:
patent: 868251 (1907-10-01), Bollee
patent: 1067449 (1913-07-01), Steward
patent: 1319158 (1919-11-01), Little
patent: 1542415 (1925-06-01), Richardson
patent: 1555489 (1925-09-01), Spencer et al.
patent: 2052225 (1936-08-01), Hartshorn
patent: 2468416 (1949-04-01), Stresen-Reuter
patent: 3778038 (1973-12-01), Eversole et al.

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