Global Patent Index - EP 1161627 A1

EP 1161627 A1 2001-12-12 - COMMON RAIL INJECTOR

Title (en)

COMMON RAIL INJECTOR

Title (de)

COMMON-RAIL-INJEKTOR

Title (fr)

INJECTEUR COMMON RAIL

Publication

EP 1161627 A1 (DE)

Application

EP 00988678 A

Priority

  • DE 0004280 W
  • DE 19963367 A

Abstract (en)

[origin: WO0148369A1] The invention relates to a common rail injector for injecting fuel in a common rail injection system of an internal combustion engine. The inventive injector is provided with an injector housing (1) having a fuel supply (24), is connected to a central high pressure fuel accumulator situated outside the injector housing (1) and can be connected to a high pressure channel (25) situated inside the injector housing (1). Fuel that is impinged upon with high pressure is injected from the channel and into the combustion chamber of the internal combustion engine when a control valve member (8) which can be axially moved to-and-fro in a longitudinal bore (4) of the injector (1), together with a first valve sealing surface (9), is lifted from a first valve seat (10) according to the pressure in a control chamber (29). The aim of the invention is to provide a quickly responding common rail injector which at least partially works in such a way that forces are equilibrant. The control chamber (29) is formed by an essentially cylindrical recess (12) that is provided at the end (11) of the control valve member (8), whereby said end faces away from the combustion chamber. The diameter (d2) of said recess is greater than the diameter (d1) of the first valve seat (10). The recess at least partially embraces a guiding pin (13) which is stationary in relation to the injector housing (1).

IPC 1-7 (main, further and additional classification)

F02M 59/46; F02M 63/00; F02M 63/02

IPC 8 full level (invention and additional information)

F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 63/00 (2006.01)

CPC (invention and additional information)

F02M 63/0007 (2013.01); F02M 63/0003 (2013.01); F02M 63/0005 (2013.01)

Citation (search report)

See references of WO 0148369A1

Designated contracting state (EPC)

DE FR GB IT TR

EPO simple patent family

WO 0148369 A1 20010705; CN 1342245 A 20020327; DE 19963367 A1 20010712; DE 19963367 B4 20080731; EP 1161627 A1 20011212; JP 2003518583 A 20030610; US 2002157645 A1 20021031

INPADOC legal status


2005-01-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040701

2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB IT TR

2002-03-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020107

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR