发明名称 |
SPRING BRAKE CYLINDER HAVING COMBINED INLET AND OUTLET DIAPHRAGM VALVE |
摘要 |
A spring brake cylinder is provided for brake systems of vehicles. It includes a spring brake piston, which is arranged in a housing of the spring brake cylinder and can be actuated by at least one accumulator spring and separates a spring chamber containing the accumulator spring from a spring brake chamber of the spring brake cylinder that can be filled with air for release and can be vented of air for application. A circulation device is provided at least for venting the spring chamber directly into the atmosphere. The circulation device is configured as a diaphragm valve device having at least one elastically movable outlet diaphragm and at least one elastically movable inlet diaphragm. The inlet diaphragm and the outlet diaphragm are in a closed position in contact with an associated valve seat in the home position of the diaphragms and, when a pressure difference between the spring chamber and the atmosphere exceeding a minimum pressure value is present, the diaphragms are moved into an open position lifted from the valve seat in order to build up and reduce pressure in the spring chamber. |
申请公布号 |
EP2864169(A1) |
申请公布日期 |
2015.04.29 |
申请号 |
EP20130730548 |
申请日期 |
2013.06.19 |
申请人 |
KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GMBH |
发明人 |
DEROUAULT, SYLVAIN;LEBIGRE, HERVÉ |
分类号 |
B60T17/08;F15B15/10;F16K15/14;F16K17/18 |
主分类号 |
B60T17/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|