Abrégé

The present invention addresses the problem of providing an external combustion closed-cycle heat engine which includes a working gas displacer means, and a heater unit and a cooler unit. The working gas displacer means is adapted to provide a high flow rate and a constant displacement flow rate irrespective of an rpm, and operate under a high-temperature high-pressure environment. The heater and cooler units can be given a volume having nothing to do with the efficiency of the engine and designed and manufactured under a variety of conditions, while being simplified in structure, improved in efficiency, and facilitated in operation and maintenance. To this end, the working gas displacer means is provided in an air chamber so that the displacer is moved cooperatively with an open and close valve to displace the working gas.

Classes IPC  ?

• F02G 1/05 - Commande par variation du débit ou de la quantité de gaz de travail
• F01K 25/10 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières ces vapeurs étant froides, p. ex. ammoniac, gaz carbonique, éther
• F01K 27/02 - Ensembles fonctionnels modifiés pour utiliser la chaleur perdue autre que celle provenant de l'évacuation, p. ex. la chaleur de frottement à l'intérieur de la machine motrice
• F02G 1/043 - Ensembles fonctionnels de moteurs à gaz chauds à déplacement positif du type à cycle fermé le moteur étant actionné par dilatation et compression d'une masse de gaz de travail chauffée et refroidie dans une ou plusieurs chambres continuellement communicantes expansibles, p. ex. moteurs du type à cycle de Stirling
• F02G 1/055 - Réchauffeurs ou refroidisseurs

Abrégé

An external-combustion, closed-cycle thermal engine is provided with: a gas chamber, a heater, and a cooler which are closed; flow paths for connecting the gas chamber and the inlet and outlet sides of the heater; flow paths for connecting the gas chamber and the inlet and outlet sides of the cooler; on-off valves respectively provided to the flow paths on the inlet and outlet sides of the heater and of the cooler; and a means for moving a working gas. The switching of the destination of the working gas between the heater and the cooler is performed by the on-off valves, and an operation body is driven. As a result of the configuration, the volume of the heater or the cooler does not affect the efficiency of the engine, and the engine operates under various conditions.

Classes IPC  ?

• F02G 1/04 - Ensembles fonctionnels de moteurs à gaz chauds à déplacement positif du type à cycle fermé
• F02G 1/05 - Commande par variation du débit ou de la quantité de gaz de travail
• F02G 1/055 - Réchauffeurs ou refroidisseurs

Abrégé

Disclosed is an external combustion-type closed-cycle combustion engine, which is provided with a sealed air chamber and a heater and cooler, and is also provided with a flow passage which provides communication between the air chamber and an inlet and an outlet of the heater. The external combustion-type closed-cycle combustion engine is also provided with a flow passage which provides communication between the air chamber and an inlet and an outlet of the cooler. An open/close valve is provided in the flow passage on the inlet side and the outlet side, respectively. The external combustion-type closed-cycle combustion engine is provided with a working gas movement means. The external combustion-type closed-cycle combustion engine is provided with a flow passage which communicates with the heater, and an open/close valve in said flow passage. The external combustion-type closed-cycle combustion engine is provided with a flow passage which communicates with the cooler, and an open/close valve in said flow passage. The external combustion-type closed-cycle combustion engine is provided with actuating elements which communicate with the heater and the cooler, respectively. As a result, it is possible to provide an external combustion-type closed-cycle combustion engine in which the volume of the heater or cooler can be designed and produced under various conditions, regardless of the engine efficiency, and the structure can be simplified. The external combustion-type closed-cycle combustion engine is highly efficient and is simple to operate and maintain.

Classes IPC  ?

• F02G 1/053 - Parties constitutives ou détails
• F02G 1/044 - Ensembles fonctionnels de moteurs à gaz chauds à déplacement positif du type à cycle fermé le moteur étant actionné par dilatation et compression d'une masse de gaz de travail chauffée et refroidie dans une ou plusieurs chambres continuellement communicantes expansibles, p. ex. moteurs du type à cycle de Stirling ayant au moins deux organes de travail, p. ex. des pistons, fournissant la sortie de puissance
• F02G 1/055 - Réchauffeurs ou refroidisseurs