Title:
増圧器を備えた燃料インジェクタのための圧力調整装置を有する切換弁
Document Type and Number:
Japanese Patent JP4113223
Kind Code:
B2
Abstract:
A fuel injector with a pressure booster supplied with fuel at high pressure. A work chamber of the pressure booster is separated from a differential pressure chamber via a booster piston. The pressure relief and the subjection to pressure of the differential pressure chamber are effected via a switching valve which communicates with the differential pressure chamber via a control line. A pressure chamber on an injection valve member communicates with a compression chamber of the pressure booster via a pressure chamber supply line. The switching valve is embodied as a direct-switching 3/2-way valve, whose valve needle is pressure-balanced and has both a sliding seat and a slide seal.
Inventors:
Hans-Christoph Margel
Application Number:
JP2005518186A
Publication Date:
July 09, 2008
Filing Date:
June 17, 2004
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M47/00; F02M47/02; F02M57/02; F02M59/46; F02M61/16; F02M61/20; F02M63/00
Domestic Patent References:
| JP9119554A | ||||
| JP11013577A |
Foreign References:
| WO2002092997A1 | ||||
| WO2003058052A1 |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel