| 摘要 |
The invention relates to a heat recovery unit comprising a casing (1), which encloses at least one regenerative heat accumulator (5), whereby the casing (1) has a supply air opening (10), an exhaust air opening (15), an exterior air opening (20) and a used-air opening (25), and whereby exhaust air and supply air alternately pass through the heat accumulator (5). The heat accumulator (5) has, by means of a rotational movement, a valve funciton which opens respectively closes said openings (10-25) when the heat accumulator (5) rotates from a first position for exhaust air throughflow to a second position for exterior air throughflow. |
