Vane-rotor type Stirling engine
AssigneeHyundai Motor Company
InventorWon-Gyu Kim
Life of this patent
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Abstract
A Stirling engine includes: a housing for storing a heating medium in an internal space, a rotor eccentrically disposed in the housing and having a plurality of vane slots, a plurality of vanes inserted into the vane slots, a heater for heating the heating medium in the housing, a radiator for cooling the heating medium in the housing, and an output shaft coupled to the rotor so as to output power to the outside. In the Stirling engine, heat absorption portion-side vanes and heat radiation portion-side vanes are installed to the single rotor in the housing, a heat absorption portion and a heat radiation portion are formed in a single enclosed space in the housing, and the heating medium continuously undergoes isothermal expansion and isothermal compression under a constant volume, thereby generating power.
Claims8
A Stirling engine comprising:
- a housing for storing a heating medium in an internal space;
- a rotor eccentrically disposed in the housing and having a plurality of vane slots;
- a plurality of vanes inserted into the vane slots;
- a heater configured to heat the heating medium in the housing;
- a radiator configured to cool the heating medium in the housing;
- and
- an output shaft coupled to the rotor so as to output power to outside,
- wherein the internal space of the housing comprises:
- a heat absorption portion as a space in which the heating medium is heated, and
- a heat radiation portion as a space in which the heating medium is cooled,
- wherein the plurality of vanes comprises heat absorption portion-side vanes, where one end of each of the heat absorption portion-side vanes is inserted into each of the vane slots, and another end of each of the heat absorption portion-side vanes comes into contact with an inner surface of the housing forming the heat absorption portion during rotation of the rotor,
- wherein heat radiation portion-side vanes are configured such that one end of each of the heat radiation portion-side vanes is inserted into each of the vane slots, and another end of each of the heat radiation portion-side vanes comes into contact with the inner surface of the housing forming the heat radiation portion during rotation of the rotor;
- wherein the rotor is configured such that a heat absorption portion-side rotor into which the heat absorption portion-side vanes are inserted, a heat radiation portion-side rotor into which the heat radiation portion-side vanes are inserted, and a shaft connecting the heat absorption portion-side rotor to the heat radiation portion-side rotor along a longitudinal direction of the shaft are formed integrally with one another,
- wherein when the heat absorption portion-side rotor continuously rotates, the heating medium is heated and isothermally expanded between the heat absorption portion-side vanes, and radiates heat under a constant volume while moving from the heat absorption portion to the heat radiation portion, and
- wherein when the heat radiation portion-side rotor continuously rotates, the heating medium is isothermally compressed between the heat radiation portion-side vanes, and cooled in the heat radiation portion by the radiator, where the heating medium is configured to absorb heat under a constant volume while moving from the heat radiation portion to the heat absorption portion, thereby allowing power to be generated for rotation of the output shaft.
Dependencies are inferred from the claim text.