| 摘要 |
The heating unit valve control device relates to a body (1) to which, a configuration of electric engine (11) and a gear box (2) of which external pinion(18) meshes together into the internal toothing of the outlet rack pinion (3) in shape of a bowl with the threaded central collar pin (12) fitted from the outer side; the collar pin crosses the body through a threaded hole in the body (1). Outlet rack pinion (3) contains on its circumference a rotary fitted collar (4) of which, on the outer side, a radial peak (20) is situated and adjusted to cooperate with the axial peak (19) of the outlet rack pinion (3). The body (1) contains on its front inner side a peak (13) cooperating with the axial peak (19) of the outlet rack pinion (3) where its external circumference area of the collar (4) indicates the valve condition. The device is characterized by simple and reliable construction allowing to perceive the valve position without any demand on electronic data processing. The device is also characterized by low noisiness level. |
