Title:
INJECTION SYSTEM (COMMON RAIL) FOR INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO2002073029
Kind Code:
A3
Abstract:
The invention relates to an injection system (Common Rail) for internal combustion engines comprising a flow controlled high pressure pump and a control device regulating the volume flow and also the rail pressure. According to the invention, said system is provided with a controllable, high speed pressure reduction valve (14, 14a, 19, 20, 22 - 28) for removing minimal amounts of fuel from the rail in order to reduce the pressure in the system, so that the desired system pressure (PSOLL) is not exceeded. A variance comparison of the pressure system is generated after the reduction in pressure and the withdrawal of fuel (pressure reduction) takes place by means of the pressure reduction valve.
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Inventors:
HAEBERER RAINER (DE)
CLAUSS HELMUT (DE)
KELLNER ANDREAS (DE)
LANDHAEUSSER FELIX (DE)
RUECKLE MARKUS (DE)
CLAUSS HELMUT (DE)
KELLNER ANDREAS (DE)
LANDHAEUSSER FELIX (DE)
RUECKLE MARKUS (DE)
Application Number:
PCT/DE2002/000861
Publication Date:
October 23, 2003
Filing Date:
March 12, 2002
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
HAEBERER RAINER (DE)
CLAUSS HELMUT (DE)
KELLNER ANDREAS (DE)
LANDHAEUSSER FELIX (DE)
RUECKLE MARKUS (DE)
HAEBERER RAINER (DE)
CLAUSS HELMUT (DE)
KELLNER ANDREAS (DE)
LANDHAEUSSER FELIX (DE)
RUECKLE MARKUS (DE)
International Classes:
F02D41/30; F02D41/38; F02M59/46; F02M63/02; (IPC1-7): F02M63/02
Foreign References:
| US6119655A | 2000-09-19 | |||
| DE19612413A1 | 1997-10-02 | |||
| DE19731995A1 | 1999-01-28 | |||
| DE19618932A1 | 1997-11-20 | |||
| DE4445586A1 | 1996-06-27 | |||
| EP1076176A2 | 2001-02-14 | |||
| US5626121A | 1997-05-06 | |||
| EP0990791A1 | 2000-04-05 | |||
| US6035829A | 2000-03-14 |
Other References:
BOSCH: "Elektronische Speichereinspritzung Common Rail", BOSCH TECHNISCHE UNTERRICHTUNG, no. KH/VSK5-11.98-De, 1 November 1998 (1998-11-01), pages 1 - 49, XP002209528
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