| 摘要 |
<p>The present invention relates to a heat pump for the circulation of a heat carrier fluid in a closed circuit in order to transfer calories from a hot source towards a cold source. This pump comprises two closed tanks which communicate, one with the hot source, and the other with the cold source, a pipe which connects the upper parts of the two tanks and which is equipped with an automatic valve controlled by two level sensors sensing the high and low level of the liquid in one of the two tanks and a circuit which connects the lower part of the first tank to the second tank through the cold source.</p> |
