Fuel injection method in fuel injector

Details Fuel injection method in fuel injector Fuel injection method in fuel injector

2005-06-14

2005-06-14

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S299000, C123S457000, C123S467000

Reexamination Certificate

active

06904893

ABSTRACT:
In fuel injector including an accumulator and an intensifier, fuel is injected such that an injection control valve and a piston control valve are individually controlled, an operational phase difference therebetween is regulated, and at least one of a maximum injection pressure, a rate of increase of an injection pressure at the start of an increase of pressure, a rate of decrease of the injection pressure at the completion of injection, a pilot injection pressure, and an after injection pressure of fuel injected from a fuel injection nozzle is arbitrarily changed. Namely, a pressure during a movement from a base common rail pressure of the accumulator to a static maximum pressure statically determined by an operation of the intensifier is positively used as a control factor of injection, whereby a fuel injection pattern can be implemented with an extremely high degree of freedom.

REFERENCES:
patent: 6453875 (2002-09-01), Mahr et al.
patent: 6491017 (2002-12-01), Mahr et al.
patent: 6688277 (2004-02-01), Mahr et al.
patent: A 57-193060 (1982-12-01), None
patent: U 61-149770 (1986-09-01), None
patent: A 2002-364484 (2002-12-01), None
patent: A 2003-148275 (2003-05-01), None
patent: WO 00/55496 (2000-09-01), None

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