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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0478495 (1974-06-12) |
우선권정보 | FR-0025143 (1973-07-04); FR-0011887 (1974-03-28) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 18 인용 특허 : 0 |
The present invention is directed toward an air conditioning system having the capability of being utilized as both a heating or cooling system. At least one heat pump is provided to pump heat from a heat source to the air conditioning system to prevent freezing of the system. The heat pump also rem
An air-conditioning device constituted by a heat pump working between the atmosphere of a room or vat to be air-conditioned and the interior of a first hole bored in the ground, characterized in that said heat pump comprises the following members, which are inserted in a first closed circuit wherein
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