Air and fuel mixing apparatus

Details Air and fuel mixing apparatus Air and fuel mixing apparatus

1991-05-17

1992-01-28

Kamen, Noah P.

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

481801, F02B 4300

Patent

active

050835475

ABSTRACT:
An apparatus 10 for introducing a mixture of air and gaseous fuel into internal combustion engines has a housing 12, in communication with a supply of gaseous fuel, that is mounted to a tubular intake port 11 of the engine carburetor. The apparatus has a control tube 26 which adjustably extends into the housing 12 to positions close to but spaced from the housing to form a gap 50 therebetween. A honeycomb air flow restriction plate 33 is mounted in the control tube. By repositioning the control tube the size of the gap 50 may be altered to adjust the air to gas mixture ratio. During engine operation the restriction plate creates a pressure differential that serves to draw gaseous fuel form the housing about the control tube into the airstream passing through the control tube into the port.

REFERENCES:
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patent: 4387689 (1983-06-01), Brown
patent: 4398521 (1983-08-01), Schuurman
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patent: 4425140 (1984-01-01), Lassanske
patent: 4425898 (1984-01-01), McLean
patent: 4479466 (1984-10-01), Greenway et al.
patent: 4494515 (1985-01-01), Brown
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patent: 4553523 (1985-11-01), Stohrer
patent: 4703742 (1987-11-01), Bennett
patent: 4872440 (1989-10-01), Green

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