Patent ID: 6637677
Filing Date: 2003-10-28
Classification: F02M

Abstract:
A fuel injector for an injection system of an internal combustion system, comprising:a valve needle; a valve-seat face; a valve-closure member cooperating with the valve-seat face to form a sealing seat; an actuator chamber; an actuator for actuating the valve-closure member via the valve needle, the actuator being situated in the actuator chamber, the actuator being one of a piezoelectric actuator and a magnetostrictive actuator; a seal for forming a permeation-resistant sealing between the actuator chamber and fuel, the seal including at least two elastomer sealing devices arranged in tandem; a first supporting element, a first of the at least two elastomer sealing devices supporting itself against the first supporting element; a valve body, the first supporting element supporting itself against the valve body; and an actuator housing having a pot-shaped design and being axially movable with respect to the valve body, the actuator housing at least partially surrounding the actuator, the actuator housing being circularly surrounded at least sectionally by the at least two elastomer sealing devices.