Unit type fuel injector for internal combustion engines

Details Unit type fuel injector for internal combustion engines Unit type fuel injector for internal combustion engines

1994-09-27

1996-06-11

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239127, 2395851, F02M 5502

Patent

active

055248250

ABSTRACT:
In a fuel injector arranged such that fuel injection is controlled by an opening/closing operation of a solenoid valve, occurrence of bouncing motion of the valve rod after the deenergization of the solenoid valve to terminate the fuel injection is prevented by forming a stopper with a flat surface for making in-plane contact with the end surface of the valve rod and defining in the valve rod a pressure chamber having an opening at the end surface. The chamber is adapted to be filled with the fuel to suppress the bouncing motion of the valve rod at the valve opening operation.

REFERENCES:
patent: 4618095 (1986-10-01), Spoolstra
patent: 5370095 (1994-12-01), Yamaguchi
patent: 5385301 (1995-01-01), Ueda
patent: 5402944 (1995-04-01), Pape

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