Fuel injection valve

Details Fuel injection valve Fuel injection valve

2005-05-17

2005-05-17

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

C251S129060

Reexamination Certificate

active

06892956

ABSTRACT:
A fuel injector for the direct injection of fuel into the combustion chamber of an internal combustion engine encompasses a piezoelectric or magnetostrictive actuator, a valve needle actuable by the actuator, the valve needle cooperating with a valve-closure member to form a sealing seat together with a valve-seat member, and a restoring spring by which the valve needle is acted on in a closing direction. The valve needle is pressure-equalized in that the force exerted by the fuel pressure on the valve needle in the opening direction is approximately equal to the force exerted by the fuel pressure on the valve needle in the closing direction.

REFERENCES:
patent: 6311950 (2001-11-01), Kappel et al.
patent: 195 34 445 (1995-09-01), None
patent: 100 07 733 (2001-08-01), None
patent: 10007735 (2001-09-01), None
patent: 1 046 809 (2000-10-01), None
patent: 1 111 230 (2001-06-01), None

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