Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1983-11-09
1985-06-18
Miles, Tim
Gas and liquid contact apparatus
Fluid distribution
Valved
261 44B, 261DIG68, F02M 906
Patent
active
045240345
ABSTRACT:
An improved carburetor having a system for precisely metering fuel introduced into an internal combustion engine. The carburetor includes an air passageway and a throttle valve having a throttle opening movable across the air passageway to control the effective cross-sectional dimension of the air passageway. The fuel metering system includes an fuel metering tube extending across the air passageway in registration with the throttle valve. The metering tube is either connected to and movable with the throttle valve, or is stationary and extends through a complementary lateral aperture in the throttle valve such that the throttle valve is slidable upon the metering tube. A longitudinal fuel distribution outlet extends along one side of the fuel metering tube substantially across the width of the air passageway. In one embodiment, fuel pressure is maintained approximately equal to the total pressure of the air in the air passageway and fuel flow is regulated by varying the percentage of the airflow dynamic pressure that retards the discharge of fuel out of the distribution outlet. In another embodiment the fuel discharge outlet is oriented so as to sense the static pressure of the air in the air passageway while the fuel pressure is maintained at a variable percentage of the air flow dynamic pressure.
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"Technical Notes, 80 H.P. LeRhone", Department of Aircraft Production.
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