Title:
内燃機関の燃料噴射システム
Document Type and Number:
Japanese Patent JP2013522514
Kind Code:
A
Abstract:
The invention relates to a fuel injection system of an internal combustion engine, comprising a presupply pump (1) and a downstream high-pressure pump (7), which is connected to a high-pressure accumulator (9) and wherein the high pressure accumulator (9) is operatively connected to at least one fuel injector (10). According to the invention, a fuel injection system is provided and a method for operating such a fuel system is described which avoids the disadvantage of a slow pressure build-up in the high-pressure accumulator (9) and rather allows a rapid start of the internal combustion engine. This is achieved in that the presupply pump (1) is designed to generate a delivery pressure by which a fuel injection by means of the fuel injector (10) is effected, at least in a defined operating state of the internal combustion engine. At the delivery pressure generated by the presupply pump (1), the fuel injector is prompted to open by a control device. A corresponding method for operating the fuel injection system provides for the presupply pump (1) to be operated in a starting operating mode until the internal combustion engine has been started, and after the internal combustion engine has been started to be operated in a presupply operating mode.
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Inventors:
Beckling, Friedrich
Application Number:
JP2012556426A
Publication Date:
June 13, 2013
Filing Date:
February 03, 2011
Export Citation:
Assignee:
Robert Bosch GmbH
International Classes:
F02M59/42; F02M59/12; F02M69/00
Domestic Patent References:
| JPH10288107A | 1998-10-27 | |||
| JP2008121563A | 2008-05-29 | |||
| JP2002061529A | 2002-02-28 |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto