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1. (WO2018012409) EGR DEVICE

Pub. No.:    WO/2018/012409    International Application No.:    PCT/JP2017/024867
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Fri Jul 07 01:59:59 CEST 2017
IPC: F02M 26/25
F02D 21/08
F02M 26/05
F02M 26/30
F02M 26/32
F02M 26/50
Applicants: CALSONIC KANSEI CORPORATION
カルソニックカンセイ株式会社
Inventors: IWASAKI, Mitsuru
岩崎 充
MATSUDAIRA, Norimitsu
松平 範光
Title: EGR DEVICE
Abstract:
An EGR device (100) that returns a portion of the exhaust gas discharged from an engine (20) from an exhaust flow path (33) to an intake flow path (13). The EGR device (100) is equipped with: an EGR cooler (50) that, by means of cooling water flowing as a coolant through the interior of the EGR cooler, cools the exhaust gas guided from the exhaust flow path (33); a bypass flow path (64) that guides the exhaust gas that has passed through the EGR cooler (50) to the exhaust flow path (33); and a bypass opening/closing valve (65) that is provided in the bypass flow path (64), and switches the flow of the exhaust gas passing through the bypass flow path (64). The bypass opening/closing valve (65) is opened when the engine cooling water temperature Tw, which is the temperature of the coolant flowing through the interior of the EGR cooler (50), is equal to or less than a prescribed temperature T.