1988-02-01

EMI-Series-Electromagnetic Fuel Injection Pumps 880421

Usage of solenoid valves capable of controlling fuel delivery to several engine cylinders in succession reduces the cost and complexity of electromagnetic fuel injection systems. A new type of injection pump employing solenoid valves with shuttles is described. In a multiplunger pump such a solenoid valve controls operation of two plungers in succession. The number of required solenoids is equal to half the number of engine cylinders. A review and analysis of the basic concept is given, and test results are discussed.

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