EGR gas cooling apparatus

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United States of America Patent

APP PUB NO 20050188965A1
SERIAL NO

11048055

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Abstract

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The pre-EGR gas cooler 1 for cooling the EGR gas introduced from the EGR pipe, and an post-EGR gas cooler for introducing the pre-EGR gas cooled in the EGR gas cooler 1 to cool it to a target cooling temperature are coupled in series, and an EGR valve is mounted for controlling the flow rate of the EGR gas between the pre-EGR gas cooler 1 and the post-EGR gas cooler 3. According to the invention, EGR gas cooling apparatus with improved durability can be obtained, and EGR valves with low product cost and high storage efficiency can be provided.

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Patent Owner(s)

Patent OwnerAddress
USUI KOKUSAI SANGYO KAISHA LTDSHIZUOKA 411-8610

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Usui, Shoichiro Shizuoka, JP 18 314

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