Patent ID: 9644574
Date: 2017-05-09
CPC Classifications: F02D,F02M

Claim:
1. An EGR device comprising: a housing having an outer pipe, the outer pipe defining an EGR inlet and including an inner circumferential surface that defines a housing chamber therein; a baffle accommodated inside the housing chamber of the outer pipe; and at least one diffuser, wherein the baffle includes an inner pipe defining an inner passage therein, the inner pipe includes an outer circumferential surface that is spaced away from the inner circumferential surface of the outer pipe to define an annular passage between the outer circumferential surface and the inner circumferential surface, the annular passage is in fluid communication with the EGR inlet, and the at least one diffuser extends in the annular passage while being separate from both the inner circumferential surface and the outer circumferential surface, the at least one diffuser includes a plurality of diffusers, the diffusers are circumferentially arranged, the diffusers define slits therebetween, the diffusers form a circular array defining an outer channel together with the inner circumferential surface of the outer pipe and defining an inner channel together with the outer circumferential surface of the inner pipe, and the outer channel communicates with the inner channel through the slits.