公开(公告)号：US5947031A

公开(公告)日：1999-09-07

申请号：US946276

申请日：1997-10-07

申请人： Richard B Polley

发明人： Richard B Polley

IPC分类号： B60G17/052 ,  B60G21/04 ,  B61F5/22 ,  B61F1/00

CPC分类号： B60G21/04 ,  B60G17/0523 ,  B61F5/22 ,  B60G2202/152 ,  B60G2202/412 ,  B60G2204/16 ,  B60G2204/17 ,  B60G2204/8302 ,  B60G2300/10 ,  B60G2500/202 ,  B60G2800/912

摘要： A railway truck leveling valve arrangement for improved railway car floor height control comprises a pneumatic level regulating valve, a rigid, lightweight bar, and a leveling valve linkage. The level regulating valve is connected to and mounted above a secondary air spring suspension. The rigid, lightweight bar extends between the axleboxes of the railway truck wheelsets, the railway truck wheelsets being coupled to a primary suspension. The leveling valve linkage connects the level regulating valve and the rigid bar. The level regulating valve senses spring deflection in both the primary and secondary suspensions and signals the secondary air spring suspension to compensate for both deflections. Consequently, the correction of the overall railway car floor height by the secondary suspension provides more precise car floor to station platform height control.

摘要翻译： 一种用于改善铁路车辆地板高度控制的铁路车辆调平阀装置，包括气动液位调节阀，刚性轻型杆和调平阀联动装置。 液位调节阀连接到并安装在二次空气弹簧悬架上方。 刚性的轻型杆在铁路车轮轮对的轴箱之间延伸，铁路车轮轮对联接到主悬架。 调平阀联动装置连接液位调节阀和刚性杆。 液位调节阀感应主悬架和辅助悬架中的弹簧偏转，并且指示二次空气弹簧悬架以补偿两个偏转。 因此，通过二次悬架校正整体铁路车辆地板高度，可提供更精确的车站平台高度控制。