| 摘要 |
In this distributor, an end orifice 14 is open to the outside, another end orifice 13 is connected to a box 36 with a free flap 46 opening in the sense of suction from the outside, two intermediate orifices 15, 16 are connected respectively to the inlet and outlet of an oven, and two inner openings 7, 18 can be closed alternately by a respective closure member 29, 30 applied elastically by an outer spring 21, 22 or an inner spring 34 depending on the position of a sliding rod 19. <IMAGE> |
