Fuel injection valve

Details Fuel injection valve Fuel injection valve

2005-10-11

2005-10-11

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

C239S073000, C239S533200, C310S328000, C251S077000

Reexamination Certificate

active

06953158

ABSTRACT:
A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine includes a piezoelectric or magnetostrictive actuator and a valve-closure member able to be actuated by the actuator, the valve-closure member cooperating with a valve-seat surface to form a sealing seat, a compensation gap being present in an actuation path between the actuator and the valve-closure member. A measuring element is provided in the actuator and/or in the actuation path, the measuring element measuring the forces exerted by the actuator the valve-closure member and the actuator being regulated in such a way that the compensation gap is being held closed.

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