| 摘要 |
<p>Pneumatic interval switching mechanism as clock for cooking and heating appliances, in which a valve with a stationary valve seat (12) and with a closing component (11, 23), which is movable along a housing axis (14), is arranged in the connection path between housing inlet (7) and housing outlet (8). The closing component is held in the closed position by two interacting magnetic components (20, 11). An axially deflectable rubber diaphragm (4) divides the housing interior into two housing chambers (5, 6), one of which (5) being connected to the inlet (7) and the other, via a pressure equalisation channel (25) containing a capillary tube (28), to the outlet (8). A carrier device (26, 27) is movement-connected to the diaphragm (4) in such a manner that it only carries the closing component (11, 23) along after a given diaphragm travel. During this idle travel, a spring (24) is loaded, which is relieved during raising of the closing component, accelerating the raising movement. <IMAGE></p> |
