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.
Claims3
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 comprising a burner for causing generation of flame;
- and
- a porous body separate from the combustion unit which covers 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, to restrain propagation of flame generated by combustion of any leak of the combustible refrigerant, at the combustion unit or around the combustion unit, from passing through the porous body to an outside of the porous body.
Dependencies are inferred from the claim text.