Fluid sprinkling – spraying – and diffusing – Injection nozzle having plunger or valve controlled by...
Patent
1998-04-06
1999-12-14
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Injection nozzle having plunger or valve controlled by...
2395851, 417380, 123499, 25112921, F02M 4902
Patent
active
060006285
ABSTRACT:
A fuel injector includes a housing having a differential piston surrounded by a coil, the differential piston carrying and surrounding an armature carrying a needle valve element. The valve seat for the needle valve is carried for movement with the differential piston. An air chamber in the injector housing communicates with the intake manifold and a fuel inlet to the fuel injector includes a check valve. At the beginning of the combustion chamber intake stroke, the differential piston is moved by a spring toward the combustion chamber, enabling the check valve to open and fuel to enter the injector fuel passages. Upon increasing pressure within the combustion chamber on the compression stroke, the differential piston is displaced to pressurize the fuel in the injector. Near the top of the compression stroke, the coil is energized and the fuel control valve is opened to inject pressurized fuel into the combustion chamber. Upon deenergization, the fuel control valve closes.
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International Search Report Jun. 2, 1999.
Ganey Steven J.
Kashnikow Andres
Siemens Automotive Corporation
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