Electronically controlled fluid injection system for an internal

Details Electronically controlled fluid injection system for an internal Electronically controlled fluid injection system for an internal

1980-03-03

1981-11-17

Myhre, Charles J.

Internal-combustion engines

Water and hydrocarbon

123 25M, 123 25L, 123 25K, 123 25R, F02D 4700, F02D 4702, F02D 4708

Patent

active

043004857

ABSTRACT:
A fluid injection system for an internal combustion engine such as spark-ignition engine in which an injection nozzle injects a finely divided spray of fluid, such as water or a water solution, into the engine in response to a flow of atomizing air. The nozzle is connected to a fluid supply reservoir and to the outlet line of an air-injection pump that is connected to an electronic control circuit which includes an inductive pick-up coupled to the ignition system of the engine and a pressure responsive sensor that is coupled to the intake manifold. The electronic circuit thus operates the pump in response to engine speed by virtue of its connection to the ignition system through the inductive pick-up and in response to engine load by virtue of its connection to the intake manifold through the pressure responsive sensor. As a result, the flow of atomizing air to the nozzle and therefore the rate and magnitude of water injection is responsive to engine speed and engine load.

REFERENCES:
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patent: 3490422 (1970-01-01), Bullis
patent: 3500802 (1970-03-01), Long
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patent: 4191134 (1980-03-01), Goodman

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