| 摘要 |
The device has two air distributors. Each consists of a casing (2) with cylindrical wall. The casing contains a cylindrical valve body with air intake at one end and an end wall extending laterally. The casing has an air intake (10) in one end, and an endface wall (8) extending across the other end, and has at least two air outputs (12, 14) in the side wall and another (16) in the end wall. By turning the valve body in the casing, one or more outlets can be wholly or partly covered, so that the air can be directed to one aperture or another connected to the air jets, to direct the air as required. |
