EP 1433934 A3 20050706 - Exhaust manifold for an internal combustion engine
Title (en)
Exhaust manifold for an internal combustion engine
Title (de)
Abgaskrümmer einer Brennkraftmaschine
Title (fr)
Collecteur d'échappement pour moteur à combustion interne
Publication
Application
Priority
JP 2002372510 A 20021224
Abstract (en)
[origin: EP1433934A2] An exhaust manifold for a four-cylinder internal combustion engine, including four branches (5,6,7,8), a downstream exhaust pipe (9) connected with the four branches, and a partition wall (10,110) dividing an exhaust path in the downstream exhaust pipe (9) into first and second passages (11,12) each having a semicircular section. Each of the first and second passages (11,12) is connected with two of the branches (5,6,7,8) which are connected with two of the four engine cylinders (#1,#2,#3,#4) having non-continuous order of ignition and communicated with first and second quarter-circular regions (A,B,C,D) in the semicircular section of the passages (11,12), respectively. An air-fuel ratio sensor (16) mounted to the downstream exhaust pipe (9) projects into both of the passages (11,12) through a cutout (18) formed on one side of the partition wall (10,110) in a width direction perpendicular to an axial direction of the downstream exhaust pipe (9). A communication portion (21,22,23,24) formed in the partition wall (10,110) fluidly communicates the passages (11,12) with each other. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
F01N 3/28 (2006.01); F01N 13/00 (2010.01); F01N 13/10 (2010.01); F01N 99/00 (2010.01)
CPC (source: EP KR)
F01N 3/2892 (2013.01 - EP); F01N 13/008 (2013.01 - EP); F01N 13/08 (2013.01 - EP KR); F01N 13/10 (2013.01 - EP); F01N 2240/20 (2013.01 - EP); F01N 2470/10 (2013.01 - EP)
Citation (search report)
- [A] FR 2586753 A1 19870306 - PEUGEOT CYCLES [FR]
- [DA] US 6012315 A 20000111 - SEKIDO YUTAKA [JP], et al
- [DA] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1433934 A2 20040630; EP 1433934 A3 20050706; EP 1433934 B1 20061129; CN 1281858 C 20061025; CN 1510256 A 20040707; DE 60310024 D1 20070111; DE 60310024 T2 20070308; JP 2004204730 A 20040722; JP 4158516 B2 20081001; KR 100566849 B1 20060403; KR 20040057966 A 20040702
DOCDB simple family (application)
EP 03029239 A 20031218; CN 200310123750 A 20031224; DE 60310024 T 20031218; JP 2002372510 A 20021224; KR 20030095130 A 20031223