EGR DEVICE FOR INTERNAL COMBUSTION ENGINE
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United States of America Patent
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app pub date -
Jul 26, 2017
filing date -
Jul 29, 2016
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Abstract
Provided is an EGR device that allows an EGR valve to be removed with ease even when the EGR valve is provided adjacent to a turbocharger. The EGR device includes a first connecting pipe portion (41b) extending from a compressor of the turbocharger and having a first annular shoulder surface (41c) at a base end thereof, an EGR valve (65) fixedly attached to a part of the engine, a joint member (71) including a flange (71a) attached to the EGR valve (65) and a second connecting pipe portion (71b), and opposing the first connecting pipe portion in a coaxial relationship, the second connecting pipe portion being provided with a second annular shoulder surface (71c) at a base end thereof, and a flexible pipe member (72) having a first end fitted onto the first connecting pipe portion and a second end fitted onto the second connecting pipe portion. A distance (L2) between the two annular shoulder surfaces is greater than a length (L1) of the flexible pipe member by a prescribed distance.
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