Auxiliary supply system

Details Auxiliary supply system Auxiliary supply system

1979-12-10

1982-10-19

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Combined liquid and gaseous fuel

123577, 261 23A, F02M 3100

Patent

active

043544754

ABSTRACT:
An internal combustion engine has a carburetor, with a throttle valve and a choke valve, that delivers a fuel-air mixture to the intake manifold. An auxiliary system uses a blending chamber which feeds the manifold exclusive of the engine carburetor and through a metering valve that responds to engine vacuum level for controlling the amount of blend drawn through the blending chamber. At the inlet of the blending chamber is an atomizing throat fed with fuel and air. The drawing of the blend from the outlet of the chamber draws air through the throat and into comminglement with liquid fuel which is atomized by action of the throat. Under normal operating conditions and adjustment, the auxiliary system improves engine performance by increasing fuel economy and reducing engine exhaust pollution.

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