| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an EGR device of a multicylinder engine for smoothly guiding EGR gas. <P>SOLUTION: This EGR device 60 of the multicylinder engine 1 includes first and second EGR tributary passages 61 and 62 for recirculating the EGR gas to an intake passage 20 by using exhaust pulsation pressure. The passage lengths La and LB of the first and second EGR tributary passages 61 and 62 are different, and a passage length difference (La-Lb) of the first and second EGR tributary passages 61 and 62 is set so that mutual exhaust pressure waves propagating from the first and second EGR tributary passages 61 and 62 are mutually weakened by an EGR junction 63. <P>COPYRIGHT: (C)2012,JPO&INPIT |
