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1. (WO2001006111) COMMON RAIL INJECTOR

Pub. No.:    WO/2001/006111    International Application No.:    PCT/DE2000/002060
Publication Date: Fri Jan 26 00:59:59 CET 2001 International Filing Date: Sun Jun 25 01:59:59 CEST 2000
IPC: F02M 47/02
Applicants: ROBERT BOSCH GMBH
BOECKING, Friedrich
Inventors: BOECKING, Friedrich
Title: COMMON RAIL INJECTOR
Abstract:
The invention relates to a common rail injector for injecting fuel in a common rail injection system of an internal combustion engine. Said common rail injector has an injector housing (1) comprising a fuel supply line (11) which is connected to a central high-pressure fuel accumulator outside the injector housing (1) and a pressure chamber (15) inside the injector housing (1), from which highly-pressurised fuel is injected according to the position of a control valve (18). In a longitudinal bore (3) of the injector housing (1), a nozzle needle (4) which can be displaced back and forth in an axial direction against the pre-tensioning force of a nozzle spring, rises from a seat, when the pressure in the pressure chamber (15) is greater than the pressure in a control chamber (16).