发明名称 |
Spring brake modulating relay valve |
摘要 |
A combined spring brake modulating relay valve integrates the functions of a relay valve and a modulating valve. The housing includes a valve assembly movable in response to air pressure provided to selected ports in the housing. A relay piston selectively communicates with a control port and a primary brake circuit port. A modulating piston includes surfaces selectively pressurized by the primary brake circuit port and a secondary brake circuit port. This modulates the pressure from the delivery port to thereby selectively apply the associated spring brakes if a failure is detected at the primary brake circuit port. The exhaust member selectively controls communication between the supply and delivery ports as necessary.
|
申请公布号 |
US6769744(B2) |
申请公布日期 |
2004.08.03 |
申请号 |
US20000579086 |
申请日期 |
2000.05.25 |
申请人 |
BENDIX COMMERCIAL VEHICLE SYSTEMS LLC |
发明人 |
MARSH ANDREW;KEMER JOHN;EBERLING CHARLES;KNIGHT DAVE;ROSS RICHARD T. |
分类号 |
B60T13/26;B60T15/20;(IPC1-7):B60T13/00;B60T15/02 |
主分类号 |
B60T13/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|