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US 4,300,484 AGranted
Electronically controlled fluid injection system for an internal combustion engine
AssigneeThe Goodman System Company, Inc.
InventorToronta P. Goodman
Life of this patent
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AssigneeThe Goodman System Company, Inc.
InventorToronta P. Goodman
Estimating the term…
A fluid injection system for an internal combustion engine such as a spark-ignition or compression-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 connected to and controlled by an electronic circuit that includes a pick-up coupled to the ignition system of the engine. The electronic circuit responds to spark plug firing rate, which is proportional to engine speed, and to the amplitude of the voltage across the spark plug gap, which is proportional to engine load, and varies, respectively, the pump stroke rate and the pump stroke length accordingly. 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 load.
A system for injecting fluid into a cylinder of an internal combustion engine having an ignition system, said fluid injecting system comprising first means for introducing air to a supply of said fluid for injecting said fluid into said cylinder at a rate proportional to the flow of said air, and second means in a responsive relation to said ignition system for responding to engine speed and engine load related signals from said ignition system for introducing air to said first means at a flow that varies in response to engine speed and engine load.
Dependencies are inferred from the claim text.