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公开(公告)号：US5415303A
公开(公告)日：1995-05-16
申请号：US113271
申请日：1993-08-27
申请人： Richard N. Hodges , Harry B. Kalina
发明人： Richard N. Hodges , Harry B. Kalina
IPC分类号： B61G9/08
CPC分类号： B61G9/08 , Y10T137/7923 , Y10T137/7932 , Y10T137/7934
摘要： A railway car cushioning device is provided for minimizing slack between railway cars. The cushioning device is provided with a piston and piston rod disposed within the cylinder. The cylinder is filled with an oil and gas mixture. A housing surrounds the cylinder providing a fluid recovery reservoir defined by the space between the outer wall of the cylinder and the housing. At one end of the cylinder is a bulkhead and at the other end is a cylinder head. The piston rod extends through a hole formed in the cylinder head and is joined to the sill of a railcar. A coupler is joined to the cushioning device for coupling to another railway car. A series of pressure relief valves are provided and engaged with egress ports formed in the cylinder wall between the bulk head and the piston when the piston is in an extended position. The pressure relief valves are constructed so that fluid may flow in only one direction, from the interior of the cylinder to the fluid reservoir. The pressure relief valves open only in response to a given fluid pressure within the cylinder. A restoration valve allows fluid to escape from the cylinder when the piston is restored to its initial position, and a bleed valve is provided for exhausting gas from the cylinder when the cushioning device is at rest.
摘要翻译： 提供一种铁路车辆缓冲装置，用于减少铁路车辆之间的松弛。 缓冲装置设置有设置在气缸内的活塞和活塞杆。 气瓶充满油和气体混合物。 壳体围绕气缸，提供由气缸的外壁和壳体之间的空间限定的流体回收容器。 在气缸的一端是隔板，另一端是气缸盖。 活塞杆延伸穿过形成在气缸盖中的孔，并连接到轨道车辆的门槛。 耦合器连接到缓冲装置，用于联接到另一个铁路车辆。 当活塞处于伸展位置时，提供一系列减压阀，并与形成在主体和活塞之间的气缸壁中的出口接合。 压力释放阀被构造成使得流体可以在仅从气缸的内部到流体储存器的一个方向上流动。 压力释放阀只有响应于气缸内的给定流体压力而打开。 当活塞恢复到其初始位置时，恢复阀允许流体从气缸中逸出，并且当缓冲装置静止时，设置放气阀以从气缸排出气体。
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公开(公告)号：US5551581A
公开(公告)日：1996-09-03
申请号：US320169
申请日：1994-10-07
申请人： Harry B. Kalina
发明人： Harry B. Kalina
IPC分类号： B61G9/16
CPC分类号： B61G9/16
摘要： A rail car has a sliding sill located within a fixed frame and a shock absorber for absorbing shock. The shock absorber has a housing with inner and outer chambers containing oil and gas. A piston extends from the housing. The housing has an end plate on its end which engages a frame stop. The housing has a base end which engages another frame stop. Limiting stops formed on the housing limit the amount of buff movement allowed.
摘要翻译： 轨道车辆具有位于固定框架内的滑动门槛和用于吸收冲击的减震器。 减震器具有外壳，内部和外部包含油和气。 活塞从壳体延伸。 壳体的端部具有接合框架挡块的端板。 壳体具有与另一个框架挡块接合的基端。 在外壳上形成的限制挡块限制了允许的buff运动量。
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公开(公告)号：US06237733B1
公开(公告)日：2001-05-29
申请号：US09123640
申请日：1998-07-28
IPC分类号： B60G1510
CPC分类号： F16F9/0245 , B61G7/00 , F16F9/54 , F16F9/58
摘要： A cushioning device for a railcar coupling that operates at a very high impedance when subjected to low level forces to thereby reduce the effect of slack between railcars while still providing an effective cushion for absorbing high levels of shock between the railcars. The cushioning device includes a cylinder containing a fluid of liquid and a gas under pressure for absorbing shock due to buff and draft movement and a piston carried in the cylinder. The gas pressure urges the piston toward the draft end of the cylinder while restoring from a buff shock. An internal positioning spring stops further restoring movement of the piston toward the draft end of the cylinder at a selected neutral position spaced from the draft end of the cylinder. The internal positioning spring allows the piston to move from the neutral position toward the draft end of the cylinder if a draft shock occurs of sufficient magnitude while the piston is in the neutral position.
摘要翻译： 一种用于轨道车辆联接器的缓冲装置，其在受到低水平力时以非常高的阻抗运行，从而减少轨道车辆之间的松弛的影响，同时仍然提供用于吸收轨道车辆之间的高水平冲击的有效缓冲器。 缓冲装置包括容纳液体的液体和在压力下用于吸收由于抛光和引流运动引起的冲击的气体和承载在气缸中的活塞的气缸。 气体压力在从缓冲器冲击恢复时促使活塞朝向气缸的通气端。 内部定位弹簧在与气缸的牵伸端间隔开的选定的中立位置处停止进一步恢复活塞朝向气缸的牵伸端的运动。 如果在活塞处于中立位置时产生足够大的冲击冲击，则内部定位弹簧允许活塞从中立位置移动到气缸的牵伸端。
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公开(公告)号：US5642823A
公开(公告)日：1997-07-01
申请号：US666920
申请日：1996-06-09
IPC分类号： B61G9/08
CPC分类号： B61G9/08
摘要： A railcar shock absorber has neutral position in which the piston is spaced between buff and draft ends of the cylinder. An external spring is mounted to the shock absorber. A slider rod has one end mounted to the coupling to move relative to the frame of the railcar. The spring has retainers on each end, and the slider rod passes through the retainers. One of the retainers is stationary relative to the frame. The other retainer floats relative to the frame and will abut a neutral stop of the frame when the spring is in the maximum length position. An engagement member on the slider rod will further compress the spring if a draft shock occurs from the neutral position. If a buff shock occurs from the neutral position, the engagement member moves away from the floating retainer.
摘要翻译： 轨道式减震器具有中间位置，其中活塞在气缸的凸轮和牵伸端之间隔开。 外部弹簧安装在减震器上。 滑动杆的一端安装到联接器以相对于轨道车辆的框架移动。 弹簧在每个端部具有保持器，并且滑动杆穿过保持器。 保持器中的一个相对于框架是静止的。 当弹簧处于最大长度位置时，另一个保持架相对于框架漂浮并且抵靠框架的中立挡块。 如果从中立位置发生牵引冲击，则滑杆上的接合构件将进一步压缩弹簧。 如果从中立位置发生抛光冲击，则接合构件移动离开浮动保持器。
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公开(公告)号：US4146142A
公开(公告)日：1979-03-27
申请号：US834092
申请日：1977-09-19
CPC分类号： B61G9/20
摘要： A fabricated backstop/buffstop comprising a pair of parallel, juxtaposed side plates, each side plate having a central opening therein, a forward transverse member having each end thereof freely positioned in a portion of the central opening of each side plate of the pair of side plates and having a slot located in the center of the forward transverse member, and a rear transverse member having each end thereof freely positioned in a portion of the central opening of each side plate of the pair of side plates.
摘要翻译： 一种制造的止回/缓冲器，包括一对平行并置的侧板，每个侧板在其中具有中心开口，前横向构件，其每个端部自由地定位在所述一对侧的每个侧板的中心开口的一部分中 板，并且具有位于前横向构件的中心的槽，以及后横向构件，其每个端部自由地定位在该对侧板的每个侧板的中心开口的一部分中。
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