Injector for high-pressure fuel injection

Details Injector for high-pressure fuel injection Injector for high-pressure fuel injection

2006-02-07

2006-02-07

Ganey, Steven J. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Injection nozzle opened by relieving supply

C239S102200, C239S533900, C239S585100, C123S447000, C123S501000, C123S506000

Reexamination Certificate

active

06994272

ABSTRACT:
An injector for high-pressure injection of fuel in self-igniting internal combustion engines includes an actuator valve for opening and closing the injector; a nozzle needle, which in the closed state of the injector closes at least one injection opening; a metering valve, which establishes a hydraulic communication between the actuator valve and the relief chamber of the injector; a pressure holding device, which serves to maintain a static pressure required for the metering valve; and a first control quantity line for control quantities that flow via the actuator valve, and a second control quantity line for control quantities that flow via the metering valve. The pressure holding device dynamically separates the control quantities of the metering valve from the control quantities of the actuator valve by means of a hydraulic fluctuation damper.

REFERENCES:
patent: 6067955 (2000-05-01), Boecking
patent: 6269795 (2001-08-01), Ripper et al.
patent: 6575140 (2003-06-01), Boecking
patent: 199 50 779 (2001-04-01), None

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