| 摘要 |
The ventilator has several movement-coupled blades (1) with regulator element (2) to open/close an air channels. The regulat is formed as a plastic housing with two opposite side walls (10,20) and end wall. A guide groove (5) with constant curvature for a connecting journal (4) is located in the side wall. The end wall is at least partially transparent, and the housing contains a l source (30). |
