Title:
SEAT/SLIDING VALVE COMPRISING A PRESSURE COMPENSATION PIN
Document Type and Number:
WIPO Patent Application WO2002073028
Kind Code:
A3
Abstract:
The invention relates to a 3/2-directional control valve for controlling the injection of motor fuel in a common-rail-injection system in an internal combustion engine. Said valve has a first position wherein an injection nozzle is joined to a fuel return pipe, and a second position wherein the injection nozzle in connected to a high pressure fuel accumulator. The aim of the invention is to improve the function and the quality of the injection. As a result said 3/2-directional control valve comprises a force compensated control piston (44) whereby the control edge of the control piston (44) is pressure compensated by a pocket hole (50).
Inventors:
RODRIGUEZ-AMAYA NESTOR (DE)
BRENK ACHIM (DE)
KLENK WOLFGANG (DE)
GORDON UWE (DE)
MACK MANFRED (DE)
GREIF HUBERT (DE)
BRENK ACHIM (DE)
KLENK WOLFGANG (DE)
GORDON UWE (DE)
MACK MANFRED (DE)
GREIF HUBERT (DE)
Application Number:
PCT/DE2002/000862
Publication Date:
October 23, 2003
Filing Date:
March 12, 2002
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
RODRIGUEZ-AMAYA NESTOR (DE)
BRENK ACHIM (DE)
KLENK WOLFGANG (DE)
GORDON UWE (DE)
MACK MANFRED (DE)
GREIF HUBERT (DE)
RODRIGUEZ-AMAYA NESTOR (DE)
BRENK ACHIM (DE)
KLENK WOLFGANG (DE)
GORDON UWE (DE)
MACK MANFRED (DE)
GREIF HUBERT (DE)
International Classes:
F02M47/00; F02M51/00; F02M59/46; F02M63/00; (IPC1-7): F02M63/00; F02M59/46
Domestic Patent References:
| WO2002059475A1 | 2002-08-01 |
Foreign References:
| DE19939452A1 | 2001-03-01 | |||
| DE19701879A1 | 1998-07-23 | |||
| DE19605277A1 | 1996-08-22 | |||
| DE19724637A1 | 1998-12-17 |
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