发明名称 |
PRESSURE CONTROL DEVICE FOR A TYRE INFLATING SYSTEM WITH A ROTARY FEEDTHROUGH, AND TYRE PRESSURE CHANGING METHOD |
摘要 |
A pressure control device for a vehicle tire inflating system is configured to receive compressed air via a ventilating inlet, activate at least one seal for sealing an air chamber between a stator and a rotor of a rotary feedthrough via a seal actuating outlet, and ventilate a tire at a ventilating outlet pressure via a ventilating outlet and the feedthrough. A control valve is pneumatically controllable by a control pressure, the ventilating outlet being ventilated at the outlet pressure by the control valve only when the control pressure is at least a defined minimum pressure. In response to pressure build-up at the ventilating inlet at least to the minimum pressure, the control pressure and the seal actuating pressure are built up for ventilating, but build-up of the control pressure is delayed with respect to the seal actuating pressure. Activation of a seal prior to ventilation of the ventilating outlet is possible without additional actuating channels. |
申请公布号 |
EP2720888(B1) |
申请公布日期 |
2015.12.16 |
申请号 |
EP20120712933 |
申请日期 |
2012.03.15 |
申请人 |
WABCO GMBH |
发明人 |
BERNHARDT, DIRK;DIECKMANN, THOMAS;WIEHEN, CHRISTIAN;ZIELKE, FRANK |
分类号 |
B60C23/00 |
主分类号 |
B60C23/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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