Patent Number: 6,637,677

Title: Fuel injector

Abstract: A fuel injector, particularly an injector of an internal combustion engine, has a piezoelectric or magnetostrictive actuator which is arranged in an actuator chamber which is sealed against the fuel, the fuel injector having a valve-closure member which can be actuated by the actuator via a valve needle, and which cooperates with a valve-seat face to form a sealing seat. In this context, the seal for forming the permeation-resistant sealing contains at least two elastomer sealing devices arranged in tandem.

Inventors: Ruehle; Wolfgang (Ditzingen, DE), Stier; Hubert (Asperg, DE), Boee; Matthias (Ludwigsburg, DE), Hohl; Guenther (Stuttgart, DE), Keim; Norbert (Loechgau, DE)

Assignee: Robert Bosch GmbH

International Classification: F02M 61/08 (20060101); F02M 61/00 (20060101); F02M 51/06 (20060101); B05B 001/30 (); H01L 041/04 ()

Expiration Date: 10/28/2020