Title:
DEVICE FOR CONTROLLING FLOW RATE OF A DIRECT INJECTION FUEL PUMP
Document Type and Number:
WIPO Patent Application WO2004007950
Kind Code:
A3
Abstract:
The invention concerns a method for controlling high pressure fuel supply of a set of injectors connected to a common high pressure chamber, called common rail C in a direct injection fuel circuit, through a high pressure pump (P), by acting on the low pressure supply of said pump (P) through an electromagnetic slide valve (E), controlled by the computer managing the operating conditions of the engine which consists in providing, inside the electromagnetic valve (E) one or more internal leakage flows, either from high pressure to low pressure, or from low pressure upstream of the electromagnetic valve (E) to the low pressure downstream thereby solving the specific problems related to the three operating modes of the engine: engine brake, engine shutdown, idle speed.
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Inventors:
HERVAULT CHRISTIAN (FR)
VERET DOMINIQUE (FR)
BAUER PHILIPPE (FR)
VERET DOMINIQUE (FR)
BAUER PHILIPPE (FR)
Application Number:
PCT/FR2003/002118
Publication Date:
April 08, 2004
Filing Date:
July 08, 2003
Export Citation:
Assignee:
SIEMENS AUTOMOTIVE HYDRAULICS (FR)
HERVAULT CHRISTIAN (FR)
VERET DOMINIQUE (FR)
BAUER PHILIPPE (FR)
HERVAULT CHRISTIAN (FR)
VERET DOMINIQUE (FR)
BAUER PHILIPPE (FR)
International Classes:
F02M47/00; F02D41/04; F02D41/12; F02D41/38; F02M51/00; F02M63/02; F02M59/04; F02M59/14; F02M59/46; (IPC1-7): F02M63/02; F02D41/38
Foreign References:
| DE19539883A1 | 1996-11-28 | |||
| DE19853103A1 | 2000-05-25 | |||
| DE10058674A1 | 2002-06-06 | |||
| DE19612413A1 | 1997-10-02 | |||
| FR2767932A1 | 1999-03-05 | |||
| EP0974008A1 | 2000-01-26 |
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