Title:
EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2008/013157
Kind Code:
A1
Abstract:
An exhaust gas recirculation system for an internal combustion engine in which a mixture of fuel gas and air is compressed by a piston and combusted in a combustion chamber. The mixture gas is supplied to the combustion chamber through an intake pipe, and an exhaust gas produced in the combustion chamber is discharged to the outside of the engine through an exhaust pipe. The exhaust gas recirculation system has an intake supercharger and an EGR supercharger. The intake supercharger has a first compressor placed in the intake pipe and a first turbine placed in the exhaust pipe and driving the first compressor. The first compressor compresses air and supercharges the combustion chamber with the compressed air. The EGR supercharger has a second compressor and a second turbine placed in the exhaust pipe and driving the second compressor. The second compressor compresses exhaust gas and supplies the compressed gas as external EGR gas to the intake pipe through an EGR supply pipe. The EGR supply pipe is connected to the intake pipe, on the upstream side of the first compressor.
Inventors:
KUZUYAMA, Hiroshi (2-1 Toyoda-cho, Kariya-sh, Aichi 71, 4488671, JP)
Application Number:
JP2007/064480
Publication Date:
January 31, 2008
Filing Date:
July 24, 2007
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI (2-1 Toyoda-cho, Kariya-shi Aichi, 71, 4488671, JP)
株式会社 豊田自動織機 (〒71 愛知県刈谷市豊田町２丁目１番地 Aichi, 4488671, JP)
株式会社 豊田自動織機 (〒71 愛知県刈谷市豊田町２丁目１番地 Aichi, 4488671, JP)
International Classes:
F02M25/07; F02M25/07
Attorney, Agent or Firm:
ONDA, Hironori (12-1, Ohmiya-cho 2-chome Gifu-sh, Gifu 31, 5008731, JP)
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