Title:
The cleaning method and internal-combustion engine of an EGR valve of an internal-combustion engine
Document Type and Number:
Japanese Patent JP6031841
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cleaning method of an EGR valve of an internal combustion which can remove soot attached to the EGR valve by utilizing compressed air stored in advance for assisting supercharging when operation of the internal combustion engine is finished, the internal combustion engine having a turbo supercharging system, a supercharging assist system which introduces the compressed air stored in advance into a cylinder and an EGR system, and to provide the internal combustion engine.SOLUTION: In a cleaning method of an EGR valve of an internal combustion engine provided with a turbo supercharging system 1, a supercharging assist system 10 which supplies compressed air Ac stored in a compressed air tank 22 in advance into a cylinder by switching from an air inlet passage 12a to a supercharging assist passage 23 by a flow passage switching device 24, and an EGR system having the EGR valve 20, when operation of the internal combustion engine is finished, the EGR valve 20 is cleaned by supplying the compressed air Ac stored in the compressed air tank 22 to a cleaning device 40 provided to the EGR valve 20.
Inventors:
Kazunari Yamamoto
Yoshimura Miki
Kenji Fujii
Nobuta Ohashi
Yoshimura Miki
Kenji Fujii
Nobuta Ohashi
Application Number:
JP2012134424A
Publication Date:
November 24, 2016
Filing Date:
June 14, 2012
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
F02M26/00; F02B33/44; F02B37/00; F02M26/02; F02M26/65
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Foreign References:
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Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Shinichi Ogawa
Takashi Noguchi
Kenji Sato
Isao Hirai
Masao Sakaizawa
Kazuhiko Saishita
Takayoshi in the daytime
Shinichi Ogawa
Takashi Noguchi
Kenji Sato
Isao Hirai
Masao Sakaizawa
Kazuhiko Saishita
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