发明名称 |
Stabilized brake control valve |
摘要 |
A brake control valve includes a housing, a quick braking chamber and a piston subject to brake pipe pressure on one side of the piston. A bore in the housing connects the quick braking chamber via a first port at a first end and the one side of the piston at a second end. The bore has a first portion of a first diameter and a second portion of a second diameter larger than the first diameter. The first bore portion connects the one side of the piston to the second bore portion. A first operator in the bore is connected to the piston. A seal on the first operator is dimensioned to form a seal with the first bore portion and not with the second bore portion. The seal is located on the operator to lie in the first bore portion for a first segment of the range of piston positions and to lie in the second bore portion for a second segment of the range of piston positions.
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申请公布号 |
US7429088(B1) |
申请公布日期 |
2008.09.30 |
申请号 |
US20070876857 |
申请日期 |
2007.10.23 |
申请人 |
NEW YORK AIR BRAKE CORPORATION |
发明人 |
THOMAS MARC S.;KUMAR DEEPAK |
分类号 |
B60T17/06 |
主分类号 |
B60T17/06 |
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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