Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1983-02-14
1984-10-23
Lazarus, Ronald H.
Internal-combustion engines
Charge forming device
Heating of combustible mixture
123545, 123590, 261144, F02M 3100
Patent
active
044781989
ABSTRACT:
A housing has an inlet arranged to be connected to the outlet of a fuel mixing device of an internal combustion engine such as a carburetor and an outlet arranged to be connected to the intake manifold of the engine. In a preferred embodiment of the invention, the housing has two or more spiral bores. These bores have a cross sectional area less than the cross sectional area of the outlet of the carburetor to provide increased time and velocity through the spiral bores and to isolate the carburetor from vacuum pulsations of the engine. The defining surfaces of the spiral bores is roughened to increase atomization. A second embodiment utilizes an elongated housing also having a spiral path for mixing the fuel and air. This latter housing has a longitudinal bore which also increases the velocity of flow of fuel and air mixture through the housing and includes a vacuum controlled valve arranged upon decreased vacuum to allow direct flow of fuel to the intake manifold in bypassing relation for providing a heated area around the spiral path, such casing being arranged to be connected into the exhaust manifold for using the heat therefrom.
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Eckelman Eugene M.
Lazarus Ronald H.
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