| 摘要 |
A pump for fluid media having different temperatures. The pump has two chambers for the two media, respectively, each chamber having an inlet and an outlet each provided with a respective check valve. The chambers are separated by a displacement body whose shape is a function of temperature and which, upon a change in shape due to a change in temperature, changes the sizes of the two chambers. The displacement body is arranged in the two chambers such that initially there is a greater heat exchange between the displacement body and the fluid in one of the chambers than there is between the displacement body and the fluid in the other of the chambers, but that subsequent to the shape change brought about by the heat exchange between the displacement body and the fluid in the one chamber, the heat exchange between the displacement body and the fluid in the other chamber will be greater than the heat exchange between the displacement body and the fluid in the one chamber.
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