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1. EP2532856 - WORKING-GAS-CIRCULATION-TYPE ENGINE

Office
European Patent Office
Application Number 10845193
Application Date 03.02.2010
Publication Number 2532856
Publication Date 12.12.2012
Publication Kind A4
IPC
F02B 47/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
04the substances being other than water or steam only
08the substances including exhaust gas
10Circulation of exhaust gas in closed or semi-closed circuits, e.g. with simultaneous addition of oxygen
F02B 43/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
43Engines characterised by operating on gaseous fuels; Plants including such engines
10Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02D 19/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
02peculiar to engines working with gaseous fuels
F02D 21/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
21Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
02peculiar to oxygen-fed engines
04with circulation of exhaust gases in closed or semi-closed circuits
F02M 21/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
21Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
02for gaseous fuels
CPC
F02B 43/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
43Engines characterised by operating on gaseous fuels; Plants including such engines
10Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02B 47/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
F02B 47/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
04the substances being other than water or steam only
08the substances including exhaust gas
10Circulation of exhaust gas in closed or semi-closed circuits, e.g. with simultaneous addition of oxygen
F02D 19/024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
02peculiar to engines working with gaseous fuels
021Control of components of the fuel supply system
023to adjust the fuel mass or volume flow
024by controlling fuel injectors
F02D 19/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
12peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
F02D 21/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
21Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
02peculiar to oxygen-fed engines
04with circulation of exhaust gases in closed or semi-closed circuits
Applicants TOYOTA MOTOR CO LTD
Inventors KUROKI RENTARO
SAWADA DAISAKU
KATO AKIRA
Designated States
Title
(DE) ARBEITSGAS-ZIRKULATIONSMOTOR
(EN) WORKING-GAS-CIRCULATION-TYPE ENGINE
(FR) MOTEUR DE TYPE À CIRCULATION DE GAZ UTILE
Abstract
(EN) A working gas circulation type engine (1) includes a combustion chamber (11) in which a working gas (Ar) having a ratio of specific heats higher than that of air can be expanded by combustion of a fuel (H 2 ), a circulation path (20) capable of circulating a gas containing the working gas (Ar) from a gas exhaust side to a gas suction side of the combustion chamber (11) and supplying the gas containing the working gas (Ar) to the combustion chamber (11) again, and a control device (60) that changes a control parameter for controlling the combustion of the fuel (H 2 ) based on a ratio of specific heats of the gas circulating in the circulation path (20). Therefore, there can be provided the working gas circulation type engine (1) capable of obtaining a stable output.
(FR) La présente invention a trait à un moteur de type à circulation de gaz utile (1) qui comprend : une chambre de combustion (11) dans laquelle un gaz utile (Ar), doté d'un coefficient de chaleur spécifique supérieur à celui de l'air, qui peut se dilater en tant que combustible (H2) fait l'objet d'une combustion ; une voie de circulation (20) permettant de faire circuler le gaz, qui contient le gaz utile (Ar), depuis l'évacuation jusqu'à l'admission de la chambre de combustion (11) et d'alimenter de nouveau la chambre de combustion (11) en gaz ; et un dispositif de commande (60) permettant de changer, en fonction du coefficient de chaleur spécifique du gaz qui circule dans la voie de circulation (20), le paramètre de commande afin de contrôler la combustion du combustible (H2). La configuration permet au moteur de type à circulation de gaz utile (1) d'obtenir une sortie stable.
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