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Title:
WORKING GAS CIRCULATION ENGINE AND SPECIFIC HEAT RATIO DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2011196198
Kind Code:
A
Abstract:

To provide a working gas circulation engine that can properly detect a specific heat ratio of a gas supplied to a combustion chamber, and to provide a specific heat ratio detection device.

The working gas circulation engine includes: the combustion chamber 11 where a working gas whose specific heat ratio is higher than air can expand with fuel combustion; a circulation path 20 that can circulate the gas including the working gas from an exhaust side of the combustion chamber 11 to an inlet side and resupply it to the combustion chamber 11; and a control device 60 that calculates the specific heat ratio the gas supplied to the combustion chamber 11 based on the pressure and volume before and after the pressure and volume are compressed by a piston 16 regarding the pressure and volume of the gas supplied to the combustion chamber 11, and controls the fuel combustion based on the specific heat ratio.


Inventors:
Kuroki, Rentaro
Sawada, Daisaku
Kato, Toru
Application Number:
JP2010000061325
Publication Date:
October 06, 2011
Filing Date:
March 17, 2010
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D21/04; F02B47/10; F02D13/02; F02D19/02; F02M21/02
Domestic Patent References:
JP2005351145A2005-12-22
JP2007064092A2007-03-15
JP2009264108A2009-11-12
Attorney, Agent or Firm:
酒井 宏明
伊藤 剣太