Combustion heater and air conditioning system
AssigneeDaikin Industries, Ltd.
InventorRyuuzaburou YAJIMA
Life of this patent
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Abstract
A combustion heater generates heat by means of flame. The combustion heater is disposed adjacent to a refrigerant circuit filled with a combustible refrigerant. The combustion heater includes a combustion unit and a porous body. The combustion unit causes generation of flame. The porous body covers the combustion unit or a periphery of the combustion unit. The porous body at least partially covers both or one of a combustion space receiving combustible refrigerant leaking from the refrigerant circuit and a member in contact with the combustible refrigerant leaking from the refrigerant circuit. The porous body has a plurality of holes. The holes have a diameter d1 equal to or less than an extinction diameter d of the combustible refrigerant.
Claims14
A combustion heater disposed adjacent to a refrigerant circuit filled with a combustible refrigerant and configured to generate heat by means of flame, the combustion heater comprising:
- a combustion unit causing generation of flame;
- and
- a porous body covering the combustion unit or a periphery of the combustion unit, wherein
- the porous body at least partially covers both or one of a space receiving the combustible refrigerant leaking from the refrigerant circuit and a member in contact with the combustible refrigerant leaking from the refrigerant circuit, and is provided with a plurality of holes, and
- the holes have a diameter equal to or less than an extinction diameter of the combustible refrigerant.
A combustion heater disposed adjacent to a refrigerant circuit filled with a combustible refrigerant and configured to generate heat by means of flame, the combustion heater comprising:
- a combustion unit causing generation of flame;
- and
- a flow path forming member forming a flow path for gas having passed through the combustion unit, wherein
- gas flow speed in at least one of the combustion unit, a periphery of the combustion unit, and an inlet of the flow path forming member is at least higher than combustion speed of the combustible refrigerant.
A combustion heater disposed adjacent to a refrigerant circuit filled with a combustible refrigerant and configured to generate heat by means of flame, the combustion heater comprising:
- a combustion unit causing generation of flame;
- and
- a heat insulator, wherein
- the heat insulator at least partially covers a member disposed at the combustion unit or in a periphery of the combustion unit and disposed at a position in contact with the combustible refrigerant leaking from the refrigerant circuit.
Dependencies are inferred from the claim text.