| 摘要 |
A device(1) for changing a flow direction through a heat exchanger (2), com- prising a valve housing (7) and a rotatable valve member (16) arranged in- side the valve housing (7). The valve housing (7) comprises first and second ends (9, 8) and a centre axis (B) extending between them. The device (1) comprises a first port (29), a second port (30), a third port (31) and a fourth port (32). The first end (9) is provided with the first port (29,),and the second end (8) is provided with the third and fourth ports (31, 32), wherein the valve member (16) is rotatable between a first position and a second position and, in the first position, defines a conduit (23) between the first port (29) and the third port (31) and, in the second position, defines a conduit (23) between the first port (29) and the fourth port (32).The valve member (16) is rotatable around an axis of rotation (17) offset from the centre axis (B) and extending through the centre of the first port (29), and the first port (29) is angularly dis- placed 90° around the centre axis (B) in relation to the third and fourth ports (31, 32). |
