发明名称 |
EMPTY AND LOAD VALVE FOR A RAILROAD CAR BRAKE SYSTEM |
摘要 |
An empty and load valve for a railroad car brake system is mounted on the bolster of a truck and has a sensing arm engageable with a side frame of the truck. An empty and load device is mounted on each intermediate truck of an articulated car. The device has a valve body with a manifold and an equalizing reservoir attached thereto. A first air passage extends through the valve body and a second air passage extends in the valve body from the first air passage to the equalizing reservoir. A piston assembly is reciprocable in the first air passage to open and close the passage and thereby proportion the available air supply. A plunger is movable in the valve body in response to the sensing arm to disable the piston assembly when a loaded condition is sensed. The plunger also allows a valve in the second air passage to close when a loaded condition is sensed so that all of the available air supply is supplied to the brake actuator. |
申请公布号 |
ZA8603424(B) |
申请公布日期 |
1987.01.28 |
申请号 |
ZA19860003424 |
申请日期 |
1986.05.07 |
申请人 |
SLOAN VALVE COMPANY |
发明人 |
EUGENE W. SCHMITT;ROBERT E. CAMPBELL |
分类号 |
B60T8/18;B60T8/20;B61H13/30 |
主分类号 |
B60T8/18 |
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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