Title:
CATALYST WARM-UP DEVICE OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2018178892
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst warm-up device of an internal combustion engine capable of improving catalyst warm-up performance.SOLUTION: A catalyst warm-up device of an internal combustion engine according to an embodiment of the invention includes an exhaust passage 5 through which exhaust gas discharged from an engine 1 flows, a turbine 9 which is a part of a supercharger 7 and is disposed in the exhaust passage 5, an exhaust bypass passage 11 which is connected with the exhaust passage 5 in such a manner as detouring the turbine 9, a waste gate valve 12 for opening and closing the exhaust bypass passage 11, and a catalyst 15 for purifying the exhaust gas. The catalyst 15 is arranged in the exhaust passage 5 at a downstream side from the waste gate valve 12 in a flow direction of the exhaust gas. The waste gate valve 12 has a heater 42 at a portion with which the exhaust gas flowing through the exhaust bypass passage 11 is brought into contact.SELECTED DRAWING: Figure 2
Inventors:
OGASAWARA NOBUHIRO
Application Number:
JP2017081480A
Publication Date:
November 15, 2018
Filing Date:
April 17, 2017
Export Citation:
Assignee:
AISAN IND
International Classes:
F01N3/20; F01N3/24; F02B37/12; F02B37/18
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office