Accumulator injection system

Details Accumulator injection system Accumulator injection system

1998-12-19

2000-05-09

Weldon, Kevin

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395338, F02M 4500

Patent

active

060592044

ABSTRACT:
An accumulator fuel injection system for a multi-cylinder internal combustion engine with solenoid controlled fuel injection valves each including a spring loaded fuel injection nozzle needle to which fuel under pressure is supplied under the control of a solenoid controlled piston with a valve structure at one end for controlling fuel supply to the nozzle needle, the control piston has at its end an axial projection extending into a fuel supply cavity to restrict the fuel passage from the fuel supply cavity through the valve structure to the nozzle needle upon initial lifting of the control piston but permitting unrestricted flow after a predetermined lifting stroke, that is, solenoid energization period, and the solenoid is energized by a first energization pulse of a duration t.sub.1 and, after an interruption period t.sub.2 by a main energization pulse t.sub.2 during which the control piston is fully lifted for unrestricted fuel flow to the nozzle needle.

REFERENCES:
patent: 5402760 (1995-04-01), Takeuchi et al.
patent: 5526791 (1996-06-01), Timmer et al.

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