Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and pump or accumulator plunger
Patent
1993-10-21
1995-01-31
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and pump or accumulator plunger
239124, 2395851, F02M 5502, F02M 5702
Patent
active
053853016
ABSTRACT:
A fuel injector has a solenoid valve which is opened and closed for spilling off pressurized fuel from a fuel pressure chamber in order to control fuel injection. The solenoid valve is provided with a valve rod that has one end connected with an armature, is formed with a valve head tapered to increase in diameter with increasing distance from the armature and is guided by a guide hole for reciprocal motion, with a fuel reservoir formed to surround the valve head and communicate with the chamber housing the armature, and with a tapered portion for seating the largest diameter portion of the valve head and being formed in the wall of the fuel reservoir to decrease in diameter in the direction of the armature. When the pressurized fuel is spilled to the armature chamber as a low pressure portion, it exerts a force on the valve rod in the direction of valve opening, thereby enabling the valve movement to be completed rapidly.
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Kashnikow Andres
Morris Lesley D.
Zexel Corporation
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