EP 1433934 A2 20040630 - 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)
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)
Designated contracting state (EPC)
DE FR GB
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