Internal-combustion engines – Charge forming device – Diverse fuel supply
Patent
1980-08-27
1982-12-21
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
Diverse fuel supply
123 25L, 123 25M, 123 1A, 123198A, F02B 4700, F02M 4300, F02D 1900
Patent
active
043643701
ABSTRACT:
An apparatus and method of introducing a fluid, as water, alcohol, or a mixture of water and alcohol, into intake air of an internal combustion engine. An electric motor drives a pump that delivers fluid under pressure to a nozzle mounted on the cover of an air cleaner above the air inlet of the carburetor. The electric energy supplied to the electric motor is modulated in a manner to operate the motor so that the pump discharges fluid at a rate that maintains the fluid to air/fuel mixture ratio substantially constant over the operating rpm of the engine. An electric control circuit is operably associated with a diaphragm assembly connected to the intake manifold and a light emitting and reflective light sensing component operable to produce an electric signal response to movement of the diaphragm that is proportional to vacuum pressure in the intake manifold. The electric signal is used to vary the width of electric energy pulses originating from the ignition system of the engine to provide output electric energy to operate the electric motor.
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Erickson Terrence J.
Smith Byron D.
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