Global Patent Index - EP 1527273 A1

EP 1527273 A1 20050504 - FUEL INJECTOR WITH AND WITHOUT PRESSURE AMPLIFICATION WITH A CONTROLLABLE NEEDLE SPEED AND METHOD FOR THE CONTROL THEREOF

Title (en)

FUEL INJECTOR WITH AND WITHOUT PRESSURE AMPLIFICATION WITH A CONTROLLABLE NEEDLE SPEED AND METHOD FOR THE CONTROL THEREOF

Title (de)

KRAFTSTOFFINJEKTOR MIT UND OHNE DRUCKVERSTÄRKUNG MIT STEUERBARER NADELGESCHWINDIGKEIT UND VERFAHREN ZU DESSEN STEUERUNG

Title (fr)

INJECTEUR DE CARBURANT AVEC ET SANS GAIN EN PRESSION ET A VITESSE DE POINTEAU REGLABLE ET PROCEDE POUR LE COMMANDER

Publication

EP 1527273 A1 20050504 (DE)

Application

EP 03787645 A 20030710

Priority

  • DE 0302317 W 20030710
  • DE 10234447 A 20020729
  • DE 10257641 A 20021210

Abstract (en)

[origin: WO2004016936A1] The invention relates to a fuel injector in an injection arrangement for internal combustion engines comprising a valve body (2). Said fuel injector comprises a pressure-relievable control chamber (19) which is impinged by fuel via an inlet throttle (32) and whose pressure can be relieved via an outlet throttle (17). A closing element (43) can be actuated by a first actuator (15). The valve body (2) is connected to a retaining body (5), whereon a nozzle body (9) surrounding an injection valve end (11) is fixed. Another second outlet throttle (18) is provided for relieving the pressure of the control chamber (19), whereby the closing element thereof (49) can be actuated by either another actuator (16) or according to the flow (70, 73, 79) of a doubly-switching actuator (50).

IPC 1-7

F02M 47/02; F02M 59/46; F02M 45/08; F02M 61/10

IPC 8 full level

F02M 47/00 (2006.01); F02M 45/02 (2006.01); F02M 45/08 (2006.01); F02M 45/12 (2006.01); F02M 47/02 (2006.01); F02M 57/02 (2006.01); F02M 59/10 (2006.01); F02M 59/46 (2006.01); F02M 63/00 (2006.01); F02M 61/20 (2006.01)

CPC (source: EP KR US)

F02M 45/02 (2013.01 - EP US); F02M 45/08 (2013.01 - EP KR US); F02M 45/12 (2013.01 - EP US); F02M 47/02 (2013.01 - KR); F02M 47/027 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 59/46 (2013.01 - KR); F02M 61/10 (2013.01 - KR); F02M 63/0015 (2013.01 - EP US); F02M 63/0017 (2013.01 - EP US); F02M 63/0022 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 63/004 (2013.01 - EP US); F02M 63/0043 (2013.01 - EP US); F02M 63/0049 (2013.01 - EP US); F02M 63/0064 (2013.01 - EP US); F02M 61/205 (2013.01 - EP US)

Citation (search report)

See references of WO 2004016936A1

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

WO 2004016936 A1 20040226; CN 1671961 A 20050921; EP 1527273 A1 20050504; JP 2005534864 A 20051117; KR 20050026035 A 20050314; US 2005263621 A1 20051201; US 7198203 B2 20070403

DOCDB simple family (application)

DE 0302317 W 20030710; CN 03818338 A 20030710; EP 03787645 A 20030710; JP 2004528359 A 20030710; KR 20057001583 A 20050128; US 52010805 A 20050103