Title:
リターンレール内で圧力振動の低減される燃料噴射装置
Document Type and Number:
Japanese Patent JP2006523793
Kind Code:
A
Abstract:
The invention relates to a fuel-injection system (1) for an internal combustion engine, comprising: at least one injector (3) for injecting fuel into a combustion chamber of a motor, said injector having a high-pressure connection (10), via which it receives a supply of fuel at high pressure, a control valve (64) for controlling the injections of the injector and a low-pressure connection (12) for discharging a controlled quantity of fuel that is accumulated during the control of the injection; and a leakage line (11), which is connected to a fuel-return line (17) by the interposition of a pressure-holding valve (15), which opens in the direction of the fuel-return line when a predefined pressure is exceeded. Said system is characterised in that it is equipped with a throttle device (20) in the vicinity of the pressure-holding valve (15), said device being configured and located in such a way that when the pressure-holding valve is open, a reflection of pressure waves emanating from the injector in the form of negative-pressure waves is damped. Negative-pressure waves emanating from the pressure-holding valve towards the leakage line of the injector are damped or prevented. This reduces the risk of damage caused by cavitation.
Inventors:
Patrick Mattes
Wolfgang Steckline
Holger wrap
Hans breckle
Marx Erhard
Wolfgang Steckline
Holger wrap
Hans breckle
Marx Erhard
Application Number:
JP2006500491A
Publication Date:
October 19, 2006
Filing Date:
April 27, 2004
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
F02M55/02; F02M37/00; F02M47/02; F02M55/00; F02M55/04; F02M57/02; F02M63/00; F02M69/54
Domestic Patent References:
| JP2002161829A | 2002-06-07 | |||
| JP2002235635A | 2002-08-23 | |||
| JPH11257188A | 1999-09-21 | |||
| JP2001020829A | 2001-01-23 | |||
| JP2003184697A | 2003-07-03 | |||
| JP2002155836A | 2002-05-31 | |||
| JP2003021017A | 2003-01-24 | |||
| JP2890718B2 | 1999-05-17 | |||
| JP2003514171A | 2003-04-15 |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel