| 摘要 |
An air-distribution pipe for fitting in a transverse direction of a machine in spaces in the machine requiring gaseous flow for a purpose such as ventilation and which tend to gather contaminants. The pipe includes a drum arranged so as to revolve about its longitudinal axis, a mantle of such drum being provided with perforations through which air can be blown from the interior of the drum into space surrounding the drum. An air inlet duct is connected to at least one end of the drum, and through such duct blown air can be passed into the interior of the drum. |
