| 摘要 |
The invention relates to a water drain valve for an electromechanical power-assisted steering system for motor vehicles, comprising a base (16) and a diaphragm (17) which is designed as a mobile valve element and which is arranged in relation to the base (16) so as to be mobile between a closed position and an open position, the membrane (18), in the closed position, being in contact with the base (16) along a torus (30), the base having a passage (23) which extends from a free opening to a bottom (26) and the diaphragm (18) being concentrically fastened to the bottom (26), said bottom (26) having at least one cut-out section (28) constituting a connection from the passage (23) to the diaphragm (18), and the bottom having at least one groove (29) which is open towards the diaphragm (18) and which extends from the at least one cut-out section (28) to the torus (30). |
