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US 4,300,485 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 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.
A system for injecting fluid into a cylinder of an internal combustion engine having an ignition system and an intake manifold, 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, second means for supplying air to said first means, control means for controlling the operation of said second means, said control means being in a responsive relation to said ignition system and to said intake manifold for responding to engine speed related signals from said ignition system and to engine load related signals from said intake manifold for controlling the operation of said second means so that air is introduced to said first means at a flow that varies in response to engine speed and engine load.
Dependencies are inferred from the claim text.