Electropneumatic double control valve comprising a sealing arrangement

• Main Authors: Roether, Friedbert, Deja, Siegmund, Schaffert, Eberhard
• Format: Patent
• Language: English
• Published: 19.12.2006

abababa caba cabElectropneumatic double regulating valve for an air-operated vehicle brake system, which is disposed centrally on a wheel axle, equipped with two brakes, with a common relay valve housing, in which is integrated for each brake an assigned regulating valve unit, which comprises for valve actuation a control piston, which can be axially adjusted and is disposed inside an assigned control chamber and which is driven with a control pressure by way of an electromagnetic pilot valve assembly, housed in an adjacent pilot valve housing, for independent axial adjustment, whereby the pilot valve housing is connected detachably to the relay valve housing by way of a sealing arrangement that lies in-between, whereby the sealing arrangement is designed as one-piece and comprises two sealing ring segments, which are in essence ring-shaped and are assigned to one control chamber each and which are connected together by means of several footbridges (to ), which are molded on in-between and which are separated from each other in such a manner between the two sealing ring segments that an elastic deformation of the footbridges (to ) results in a defined compensation of the tolerance of the relative position of both sealing ring segments in the connecting plane between the pilot valve housing and the relay valve housing.