EP 1445477 A1 20040811 - Metering device with flow calibrator and method for setting a flow rate of a metering device
Title (en)
Metering device with flow calibrator and method for setting a flow rate of a metering device
Title (de)
Messvorrichtung mit Durchfluss-Kalibriereinrichtung sowie Verfahren zur Einstellung der Durchflussmenge der Messvorrichtung
Title (fr)
Dispositif de dosage avec calibreur du débit et procédé pour ajuster le débit du dispositif de dosage
Publication
Application
Priority
EP 03001633 A 20030124
Abstract (en)
The invention relates to a metering device for dosing pressurized fluids, particularly an injection valve for a fuel injection system in an internal combustion engine, comprising a housing (12) having an end part provided with an outlet passage (14) terminating with a metering opening (16), an axially moveable valve needle (20) passing through the outlet passage (14), and controlling opening and closing of the metering opening (16), and a piezoelectric actuator (18) in axial alignment with the valve needle (20) and cooperating with the valve needle (20) to control its axial movement. A plastically deformable adjustment element (22) is arranged axially aligned between a bottom end piece (24) of the piezoelectric actuator (18) and a head (26) of the valve needle (20), wherein a plastic deformation of the adjustment element (22) regulates the axial spacing between the piezoelectric actuator (18) and the valve needle (20), thereby setting a flow rate for the metering device. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 61/08 (2006.01); F02M 61/10 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 51/0603 (2013.01); F02M 61/161 (2013.01); F02M 61/168 (2013.01)
Citation (search report)
- [Y] DE 3735288 A1 19890427 - PIERBURG GMBH [DE]
- [Y] WO 0190570 A1 20011129 - CATERPILLAR INC [US]
- [A] US 5232167 A 19930803 - MCCORMICK MICHAEL [US], et al
- [A] EP 1106817 A2 20010613 - SIEMENS AG [DE]
- [A] DE 19932762 A1 20010118 - BOSCH GMBH ROBERT [DE]
- [A] US 6385848 B1 20020514 - D ARRIGO ANGELO [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1445477 A1 20040811; EP 1445477 B1 20060405; DE 60304442 D1 20060518; DE 60304442 T2 20060824; JP 2004225687 A 20040812
DOCDB simple family (application)
EP 03001633 A 20030124; DE 60304442 T 20030124; JP 2003301930 A 20030826