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Title:
INTERNAL COMBUSTION ENGINE EQUIPPED WITH TURBOCHARGER
Document Type and Number:
WIPO Patent Application WO/2012/098644
Kind Code:
A1
Abstract:
Provided is a multi-cylinder internal combustion engine equipped with a turbocharger, wherein a twin entry turbo having two exhaust gas inlets provided in a turbine is used as the turbocharger, a first exhaust passage is provided for directing exhaust gas discharged from a first cylinder group of the internal combustion engine to one of the exhaust gas inlets of the turbocharger, a second exhaust passage is provided in which exhaust gas discharged from a second cylinder group of the internal combustion engine is directed to the other exhaust gas inlet of the turbocharger, and an air-fuel ratio sensor is disposed in an exhaust gas collection section of the first exhaust passage and in an exhaust gas collection section of the second exhaust passage. As a result of this configuration, exhaust gas can efficiently reach an element section of the air-fuel ratio sensors, and the air-fuel ratio of exhaust gas upstream of a catalyst can be accurately detected for each cylinder.

Inventors:
SAKATA Kunihiko (1Toyota-cho,,Toyota-sh, Aichi 71, 〒4718571, JP)
坂田 邦彦 (〒71 愛知県豊田市トヨタ町1番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
Application Number:
JP2011/050752
Publication Date:
July 26, 2012
Filing Date:
January 18, 2011
Export Citation:
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Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町1番地 Aichi, 〒4718571, JP)
SAKATA Kunihiko (1Toyota-cho,,Toyota-sh, Aichi 71, 〒4718571, JP)
International Classes:
F02D45/00; F02B37/02; F02D35/00
Foreign References:
JP2007247409A
JP2003301720A
JP2009270543A
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (Sumitomoseimei Midosuji Bldg. 14-3 Nishitenma 4-chome, Kita-ku Osaka-sh, Osaka 47, 〒5300047, JP)
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Claims: