公开(公告)号：US5450782A

公开(公告)日：1995-09-19

申请号：US285667

申请日：1994-08-03

申请人： James E. Hart ,  Daniel G. Scott ,  Lawrence J. Andrews

发明人： James E. Hart ,  Daniel G. Scott ,  Lawrence J. Andrews

IPC分类号： F16J15/16 ,  B60T15/42 ,  F16J1/04 ,  F16J9/28 ,  F16K3/24 ,  F16J15/18

CPC分类号： F16K3/243 ,  B60T15/42

摘要： A piston valve assembly in which plastic wear rings are fitted on an aluminum piston member to prevent metal-to-metal engagement between the piston member and the bore of the bushing in which the piston member is operatively disposed in order to eliminate abrasion of the piston member due to vibration in the bushing bore.

摘要翻译： 一种活塞阀组件，其中塑料耐磨环安装在铝活塞构件上，以防止活塞构件与衬套的孔之间的金属与金属接合，其中活塞构件可操作地设置在其中，以消除活塞的磨损 构件由于衬套孔中的振动。

公开(公告)号：US5096266A

公开(公告)日：1992-03-17

申请号：US652692

申请日：1991-02-08

申请人： Elmer T. Skantar

发明人： Elmer T. Skantar

IPC分类号： B60T13/66 ,  B60T15/14 ,  B60T15/42

CPC分类号： B60T15/14 ,  B60T13/665 ,  B60T15/42 ,  Y10T137/7781

摘要： A brake control system having a vent valve device in which a control piston is effective to unseat a normally closed vent valve to provide rapid exhaust of brake pipe pressure to either propagate an emergency brake application in response to brake pipe pressure on one side of the piston being reduced at an emergency rate or to initiate an emergency brake application when pressure on the opposite side of the piston is increased by an auxiliary pilot valve connected to a second main reservoir at a higher pressure.

摘要翻译： 一种具有排气阀装置的制动控制系统，其中控制活塞有效地使常闭通气阀开启，以提供制动管压力的快速排放，以响应于活塞的一侧上的制动管压力传播紧急制动应用 在紧急情况下减速或者当通过在较高压力下连接到第二主容器的辅助先导阀增加在活塞的相对侧上的压力时启动紧急制动应用。

公开(公告)号：US4940292A

公开(公告)日：1990-07-10

申请号：US340263

申请日：1989-04-19

申请人： Angel P. Bezos ,  Gary W. Egerton

发明人： Angel P. Bezos ,  Gary W. Egerton

IPC分类号： B60T13/66 ,  B60T15/42

CPC分类号： B60T13/665 ,  B60T15/42

摘要： A motor driven ball valve may be driven in two modes of operation; those modes are a normal or testing mode and an emergency mode. The ball valve, when in its full open position, has an air passage that allows for the rapid exhaust of air in the air pipe of the air brake system to atmosphere, thereby inducing the emergency application of the brakes. The rotating ball valve assembly is capable of infinite variation between its full closed and its full open positions. Thus, the motor drive, which is remotely controlled, can effectively modulate the reduction in air pressure in the air pipe for a variety of purposes, including normal operation of the brakes and testing the air brake system. The motor drive mechanism may be in a cam, gear, or follower configuration. When an emergency application of the brakes is required, the motor drive mechanism is disengaged to allow a spring or other torsion device to rapidly rotate the ball to full open position, while drawing minimal electrical power. The spring or other torsion mechanism is prestressed by the operation of the motor driven mechanism as it rotates the ball toward its closed position.

摘要翻译： 电机驱动的球阀可以以两种操作模式驱动; 这些模式是正常或测试模式和紧急模式。 球阀处于完全打开位置时，具有一个空气通道，允许空气制动系统的空气管道中的空气迅速排放到大气中，从而引起制动器的紧急应用。 旋转球阀组件在其完全关闭和完全打开位置之间能够无限变化。 因此，远程控制的电机驱动可以有效地调节空气管道中的空气压力的降低，包括正常的制动器运行和空气制动系统的测试。 马达驱动机构可以是凸轮，齿轮或从动构件。 当需要紧急应用制动器时，马达驱动机构被分离以允许弹簧或其它扭转装置在减少电力的同时将球快速旋转到完全打开位置。 弹簧或其他扭转机构通过电机驱动机构的操作来预防，因为它将球旋转到其关闭位置。

公开(公告)号：US4848849A

公开(公告)日：1989-07-18

申请号：US310313

申请日：1989-02-14

申请人： Niklaus Epp ,  Pius Fischer ,  Heinz Deutsch

发明人： Niklaus Epp ,  Pius Fischer ,  Heinz Deutsch

IPC分类号： B60T15/42

CPC分类号： B60T15/42

摘要： The acceleration apparatus for connection with a pilot operated compressed-air brake comprises a tap-off valve which vents the main air line or conduit at the beginning of the braking procedure. This tap-off valve is opened by an actuator or actuating mechanism via a disengageable intermediary member. By employing a rotationally symmetrical plunger or push rod which is pivoted into the operative position thereof by a spring and deflected by an interrupter piston, the construction of the disengageable intermediary member can be substantially simplified. The plunger or push rod possesses at the one end thereof a cam or pin and a substantially conical surface.

摘要翻译： 用于与先导操作的压缩空气制动器连接的加速装置包括在制动过程开始时排出主空气管线或导管的分接阀。 该分流阀由致动器或致动机构经由可脱离中间构件打开。 通过使用旋转对称的柱塞或推杆，其通过弹簧枢转到其操作位置并由断路器活塞偏转，可以基本上简化可脱离中间构件的构造。 柱塞或推杆在其一端处具有凸轮或销和基本上圆锥形的表面。

公开(公告)号：US4842341A

公开(公告)日：1989-06-27

申请号：US192966

申请日：1988-05-12

申请人： Lawrence E. Vaughn ,  Walter E. Rojecki ,  Thomas H. Engle

发明人： Lawrence E. Vaughn ,  Walter E. Rojecki ,  Thomas H. Engle

IPC分类号： B60T15/22 ,  B60T15/42 ,  B60T15/52

CPC分类号： B60T15/22 ,  B60T15/42 ,  B60T15/52

摘要： A modulation valve device for governing pressure in a brake pipe has coaxial accelerating and releasing valves provided wherein accelerated application and release pistons are dovetailed together to reduce the size and the weight of the modulating device.

摘要翻译： 用于调节制动管中的压力的​​调制阀装置具有同轴加速和释放阀，其中加速的施加和释放活塞彼此靠拢在一起以减小调节装置的尺寸和重量。

公开(公告)号：US4819993A

公开(公告)日：1989-04-11

申请号：US116942

申请日：1987-11-05

申请人： Edward W. Gaughan ,  Theodore B. Hill

发明人： Edward W. Gaughan ,  Theodore B. Hill

IPC分类号： B60T15/42 ,  B60T15/32 ,  B60T15/46

CPC分类号： B60T15/42

摘要： A freight brake control valve device having an improved quick service function provided by suppressing premature cut off operation of the quick service limiting valve. In one embodiment of the invention, this is accomplished by connecting the quick service volume pressure to the underside of the quick service limiting valve piston during preliminary quick service to counteract the pressure pulse on the opposite side of the piston that occurs during the transition between the preliminary and secondary stages of quick service. In a second embodiment, pressure is created at the underside of the quick service limiting valve piston by dashpot action of the piston itself.

摘要翻译： 一种具有改进的快速使用功能的货物制动控制阀装置，其通过抑制快速限制阀的过早切断操作而提供。 在本发明的一个实施例中，这是通过在快速服务期间将快速服务容积压力连接到快速使用限制阀活塞的下侧来实现的，以抵消在活塞过渡期间发生的活塞相对侧上的压力脉冲 快速服务的初级和次级阶段。 在第二实施例中，通过活塞本身的缓冲器作用，在快速限制阀活塞的下侧产生压力。

公开(公告)号：US4768556A

公开(公告)日：1988-09-06

申请号：US926034

申请日：1986-10-31

申请人： James G. Rees

发明人： James G. Rees

IPC分类号： B60T15/18 ,  B60T15/42 ,  F16K31/126

CPC分类号： B60T15/42 ,  B60T15/18 ,  Y10T137/86919 ,  Y10T137/86984

摘要： A braking system for railroad freight trains and a novel relay valve for use in the system are disclosed. The relay valve permits the brake system to be configured so that the requirement for expensive control valves is minimized. The novel relay valve is interposed between the control valve and a number of brake cylinders. Upon a signal from the control valve, the relay valve delivers brake air to the cylinders from a pre-charged reservoir or other source. The novel relay valve includes primary and secondary flow valves to cause air to be delivered to the brakes in a controlled manner. An exhaust valve arrangement in the relay valve permits the brakes to be released.

摘要翻译： 公开了一种用于铁路货运列车的制动系统和用于该系统的新型继动阀。 继动阀允许制动系统配置成使得对昂贵的控制阀的要求最小化。 新型继电器阀介于控制阀和多个制动缸之间。 在来自控制阀的信号时，继电阀从预充电的储存器或其他源将制动空气输送到气缸。 新型继电器阀包括主流量和二次流量阀，以便以受控的方式将空气输送到制动器。 继电阀中的排气阀装置允许制动器被释放。

公开(公告)号：US4702291A

公开(公告)日：1987-10-27

申请号：US776766

申请日：1985-09-16

申请人： Thomas H. Engle

发明人： Thomas H. Engle

IPC分类号： B60T15/42 ,  B61C9/10 ,  B61C15/14 ,  B61D3/10 ,  B61D3/18 ,  B61D45/00 ,  B61F3/16 ,  B61H13/38 ,  B61C7/04

CPC分类号： B61C15/14 ,  B60T15/42 ,  B61C9/10 ,  B61D3/10 ,  B61D3/184 ,  B61D45/005 ,  B61F3/16 ,  B61H13/38

摘要： A rail vehicle propulsion system having an engine whose speed is a function of a selected vehicle speed, an alternator connected to the engine for generating an electrical signal to drive an electric motor connected to the axle by a variable automatic mechanical transmission. The electric motor reflects the load on the axle to the engine through the alternator. The alternator drives a plurality of electric motor-transmission combinations. For ease of servicing, the engine and alternator are mounted on a removable pallet.

摘要翻译： 一种轨道车辆推进系统，其具有速度是所选择的车辆速度的函数的发动机，连接到发动机的交流发电机，用于产生电信号，以通过可变的自动机械变速器驱动连接到车轴的电动机。 电动机通过交流发电机将轴上的负载反映到发动机。 交流发电机驱动多个电动发动机组合。 为了便于维修，发动机和交流发电机安装在可移动的托盘上。

公开(公告)号：US4690463A

公开(公告)日：1987-09-01

申请号：US853519

申请日：1986-04-18

申请人： James E. Hart

发明人： James E. Hart

IPC分类号： B60T15/36 ,  B60T15/42 ,  B61H13/20 ,  B60T15/30

CPC分类号： B60T15/42

摘要： A freight brake control valve device in which the emergency piston slide valve is arranged to provide continuous, periodic, local reductions in the brake pipe pressure in response to initial actuation of the emergency piston when a service rate of brake pipe pressure reduction is made, in order to quickly propagate a brake pipe pressure reduction wave along the train and accordingly provide an accelerated application of the train brakes. This accelerated application function in response to a service rate of brake pipe pressure reduction is achieved concurrently with the quick action chamber "breathing" function, the latter being presently incorporated in the emergency piston slide valve to stabilize the emergency piston following initial actuation thereof, so as to prevent further actuation of the emergency piston to emergency position.

摘要翻译： 一种货运制动控制阀装置，其中应急活塞滑阀被布置成当制动管压力降低的服务速率时响应于紧急活塞的初始致动而在制动管压力中连续，周期性地局部减小 为了快速地沿着列车传播制动管减压波，因此提供了列车制动器的加速应用。 响应于制动管压力降低的服务速度的这种加速应用功能与快速动作室“呼吸”功能同时实现，后者当前被并入应急活塞滑阀中，以在其初始致动之后稳定紧急活塞，因此 以防止紧急活塞进一步致动到紧急位置。

公开(公告)号：US4575158A

公开(公告)日：1986-03-11

申请号：US636979

申请日：1984-08-02

申请人： Wolfgang Grunert ,  Johann Huber

发明人： Wolfgang Grunert ,  Johann Huber

IPC分类号： B60T15/36 ,  B60T15/18 ,  B60T15/42 ,  B60T15/50 ,  B60T15/34

CPC分类号： B60T15/42 ,  B60T15/50

摘要： The present invention discloses a maximum pressure control device for the brake cylinder pressure that is to be supplied to a brake cylinder and this device can consist of two separate pressure control devices or be constructed as a unified, reversible pressure control device. The selection of one of the active pressure control devices or changeover of the switchable maximum pressure control device results from a main brake line pressure acting against a spring loaded control piston which, depending on the main brake line pressure, can switch off the pressure control function of the maximum pressure control device for the low (service) or high (emergency) brake cylinder pressure. The control piston when functioning as an actuated cut off device can be mechanically coupled with a pressure control device by means of a stop coupling or pneumatic coupling. As a result, the control piston is not able to exert any negative effect on the control precision of the maximum pressure control device.

摘要翻译： 本发明公开了一种用于制动缸压力的最大压力控制装置，其被提供给制动缸，并且该装置可以由两个单独的压力控制装置组成，或者被构造为统一的可逆压力控制装置。 选择一个主动压力控制装置或切换可切换最大压力控制装置的结果是主动制动管路压力作用在弹簧加载的控制活塞上，这取决于主制动管路压力，可以关闭压力控制功能 的最低压力控制装置用于低（服务）或高（紧急）制动缸压力。 控制活塞当用作致动的切断装置时，可通过止动联接或气动联接与压力控制装置机械联接。 结果，控制活塞不能对最大压力控制装置的控制精度施加任何负面影响。