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Title:
WORKING GAS CIRCULATION TYPE ENGINE
Document Type and Number:
Japanese Patent JP2011106336
Kind Code:
A
Abstract:

To provide a working gas circulation type engine capable of restraining choking of a circulation path due to freezing.

The working gas circulation type engine includes a combustion chamber 11, a circulation path 20 for circulating a gas including a working gas from the exhaust side to the intake side of the combustion chamber 11 for re-supplying the same to the combustion chamber 11, a heat exchanger 50 with a heat exchanging path 55 formed with members 54 facing each other for allowing passage of the gas circulating through the circulation path 20 for heat exchange of a cooling medium and the gas passing through the heat exchanging path 55 via the members 54 for cooling down the gas for separating steam, and a gas channel 90 connected to allow passage of the circulating gas between the upstream side and the downstream side of the heat exchanging path 55 with respect to the circulating direction of the gas circulating through the circulation path 20 with its minimum size of the channel cross-section formed larger than the minimum size of the channel cross-section of the heat exchanging path 55.


Inventors:
Kuroki, Rentaro
Sawada, Daisaku
Kato, Susumu
Application Number:
JP2009000261922
Publication Date:
June 02, 2011
Filing Date:
November 17, 2009
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D21/04; F01N3/24; F02B47/10; F02D19/02; F02D19/12
Domestic Patent References:
JP2008064018A
JP2008530431A
JP2008530432A
JP2001173519A
JP2003201903A
JPH105511A
JP2009235934A
Attorney, Agent or Firm:
酒井 宏明
伊藤 剣太