Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP2008519202
Kind Code:
A
Abstract:
An apparatus for injecting fuel into an internal combustion engine having a fuel injector acted on with highly pressurized fuel actuated by means of a metering valve device that is able to control the pressure in a pressure booster control chamber so that in a pressure booster pressure chamber delimited by a pressure booster piston which can be filled via a check valve with high-pressure fuel and communicates with an injection valve member pressure chamber, the pressure booster piston increases the pressure, causing an injection valve member for injecting fuel to open. To assure a correct injection quantity even if an abrupt pressure drop occurs in the high-pressure fuel source, the pressure booster piston is situated and designed so that if a pressure drop occurs in the high-pressure fuel source, then starting from its neutral position, the pressure booster piston has the capacity to execute a pressure compensation movement by means of which the pressure in the pressure booster pressure chamber is adapted to the pressure of the high-pressure fuel source.
Inventors:
Archim brenck
Hans-Christoph Margel
Volkmer Cologne
Golan Kanish
Hans-Christoph Margel
Volkmer Cologne
Golan Kanish
Application Number:
JP2007539564A
Publication Date:
June 05, 2008
Filing Date:
October 19, 2005
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M47/00
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel