Fluid sprinkling – spraying – and diffusing – Processes – Of fuel injection
Patent
1983-06-27
1985-02-12
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Of fuel injection
239 88, 239124, 403 47, F02M 4500
Patent
active
044986254
ABSTRACT:
A unit fuel injector combines an injection nozzle, a fuel pumping unit, and a solenoid valve with a mechanism for precise adjustment of the air gap size in the solenoid. Activation of the solenoid and closing of the spill port in the solenoid valve results in fuel injection from the injection nozzle. Controlling the duration and timing of the solenoid voltage pulse controls the quantity of fuel injected and injection timing, while an adjustment of the size of the solenoid air gap permits fine adjustment of the quantity of fuel injected at a given voltage pulse duration. Adjustment of the air gap size in the solenoid for the unit fuel injector uses a differential thread arrangement. Relative rotation takes place between two pairs of threads so that the accuracy of adjustment is determined by the difference between the pitches of the two pairs of threads.
REFERENCES:
patent: 1242066 (1917-10-01), Starr
patent: 2444666 (1948-07-01), Orain
patent: 3263645 (1966-08-01), Hansel
patent: 4408718 (1983-10-01), Wich
Abolins Peter
Ford Motor Company
Kashnikow Andres
Sanborn Robert D.
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