| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an EGR device of a multicylinder engine for simplifying a structure related to an EGR cooler. <P>SOLUTION: This EGR device 60 of the multicylinder engine 1 for recirculating EGR gas to an intake passage 20 by using exhaust pulsation pressure, includes a cooler housing 74 for defining a refrigerant flow passage 97 for making a refrigerant flow, and a plurality of cooling pipes 73 arranged in parallel in the cooler housing 74. The cooling pipes 73 define first and second EGR cooling flow passages 71 and 72 respectively guiding the EGR gas taken out by first and second EGR tributary passages 61 and 62 in the same direction. The EGR device 60 includes a cooler outlet junction 63 merging the EGR gas passed through the first and second EGR cooling flow passages 71 and 72. <P>COPYRIGHT: (C)2012,JPO&INPIT |
