Fuel injection system for a diesel engine

Details Fuel injection system for a diesel engine Fuel injection system for a diesel engine

1994-08-02

1996-01-02

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123472, F02M 3704

Patent

active

054799023

ABSTRACT:
In a fuel injection system for a Diesel engine with a high pressure fuel pump supplying fuel under pressure to a common high pressure fuel supply conduit from which the fuel is admitted to a number of fuel injectors having fuel injection control needles engaged by springs so as to be normally seated on a valve seat and a control needle actuator for lifting the control needle off the valve seat under the control of an electronic control unit, the needle includes a cylindrical needle body movable within a cylinder and has slot-shaped orifices formed in its outer surface which are fully covered when the control needle is seated but which are exposed to a degree controllable by the needle actuator for adjustment of the orifice sizes depending on engine operating parameters.

REFERENCES:
patent: 4718386 (1988-01-01), Gieles
patent: 4725002 (1988-02-01), Trachle
patent: 4750706 (1988-06-01), Schlagmuller
patent: 4779596 (1988-10-01), Babitzka
patent: 5169067 (1992-12-01), Matsusaka
Technische Rundrchau 41, 1992, "Piezopower" p. 38

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