Air-fuel-mixture forming device for spark ignition internal comb

Details Air-fuel-mixture forming device for spark ignition internal comb Air-fuel-mixture forming device for spark ignition internal comb

1979-04-10

1982-05-04

Myhre, Charles J.

Internal-combustion engines

Charge forming device

Fuel injection system

123545, 123179L, 123488, F02B 300

Patent

active

043276911

ABSTRACT:
Internal combustion engines utilizing conventional carburetors have auxiliary devices such as a choke and accelerator pump which cause over-rich mixture and consequently affect the fuel consumption and exhaust gas emissions adversely. The present invention improves the performance of such engines whilst retaining the advantages of conventional carburetors.
The invention provides a spark ignition carburetor equipped engine with an electromagnetic injection valve disposed in the induction manifold for the supply of additional fuel when required. Actuation means for the electromagnetic injection valve are preferably electronic devices which comprise a pulse generator and measured valve transmitter (sensors) for each of the engine operating parameters relevant to the injection of additional fuel, thus the timing and duration of opening of the injection valve is controlled precisely.

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patent: 4132203 (1979-01-01), Eipern
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