Patent ID: 6289685
Filing Date: 2001-09-18
Classification: F24F,F25B

Abstract:
An air conditioner comprising a refrigerant-circulating circuit having a refrigerant circulating through the inside thereof, said refrigerant-circulating circuit comprising:a heat-use-side heat exchanger for causing a heat exchange between said refrigerant and indoor air;a condenser only for condensing said refrigerant by causing a heat exchange between said refrigerant and outdoor air; andheating means only for heating said refrigerant, said heating means comprisinga combustion element for causing a fuel to burn and generate the combustion gas;a temperature adjusting element for cooling said combustion gas to a specified temperature or lower, anda heat exchanging element for causing a heat exchange between said combustion gas from said temperature adjusting element and said refrigerant in said refrigerant-circulating circuit; andsaid temperature adjusting element comprising a passage member having a hollow cylindrical configuration and defining an inner passage, said passage member having an inlet hole for introducing said combustion gas from said combustion element into said inner passage such that a flow of said combustion gas in said inner passage is disturbed and an outlet hole for supplying said combustion gas from said inner passage to said heat exchanging element, and a preheat tube wound around said passage member in such manner that said refrigerant to be supplied to said heat exchanging element flows through the preheat tube;wherein said heating means heats said refrigerant by causing a heat exchange between combustion gas and said refrigerant.