Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1979-01-12
1981-08-18
Davis, Albert W.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
174 15HP, 336 58, 16510414, 16510417, 16510421, H02B 100, F28D 2100
Patent
active
042850274
ABSTRACT:
The invention is concerned with a cooling system for cooling telecommunication equipment at an unattended microwave relay station or the like located in desert or like regions where there is a large difference between the maximum daytime temperature and minimum nighttime temperature. The cooling system includes an outdoor heat exchanger disposed outside and above a shelter accommodating the telecommunication equipment, an indoor heat exchanger disposed in the shelter and a heat storage means disposed at an intermediate level between these heat exchangers. These heat exchangers and the heat storage means are connected with one another by conduit means charged with a condenseable refrigerant, such that the refrigerant is naturally circulated in said conduit means by gravity. When the outdoor temperature is low at night, most part of the cooling energy absorbed by the outdoor heat exchanger is stored in the heat storage means, while the remaining part is used for cooling the telecommunication equipment, whereas during the daytime when the outdoor temperature is high, the cooling energy is released from the heat storage means to effectively cool the telecommunication equipment. The cooling of telecommunication equipment can thus be performed without requiring any external electric power and frequent maintenance work.
REFERENCES:
patent: 2825034 (1958-02-01), Birchard
patent: 3112877 (1963-12-01), Snelling
patent: 3651865 (1972-03-01), Feldmanis
patent: 4046193 (1977-09-01), Dougherty
Mori Shigeru
Sakitani Katsumi
Daikin Kogyo Co. Ltd.
Davis Albert W.
Nippon Electric Company Limited
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