Title:
増圧器を備えたサーボ弁制御式の燃料インジェクタ
Document Type and Number:
Japanese Patent JP2006522254
Kind Code:
A
Abstract:
A fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, including a pressure booster, whose booster piston separates a work chamber, subjected to fuel via a pressure reservoir, from a pressure-relievable differential pressure chamber. A pressure change in the differential pressure chamber is effected via an actuation of a servo valve, which opens or closes a hydraulic connection of the differential pressure chamber to a first low-pressure-side return. The servo valve has a piston guided between a control chamber and a first hydraulic chamber. On this servo valve piston, a hydraulic face that positions the servo valve piston constantly in the opening direction when system pressure is applied and a first sealing seat that closes or opens a low-pressure-side return are embodied.
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Inventors:
Matthias Eisenmenger
Hans-Christoph Margel
Hans-Christoph Margel
Application Number:
JP2006504247A
Publication Date:
September 28, 2006
Filing Date:
March 04, 2004
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M47/00; F02M47/02; F02M57/02; F02M59/10; F02M59/32; F02M59/46; F02M63/00; F02M63/02
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel