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公开(公告)号：US20220126889A1
公开(公告)日：2022-04-28
申请号：US17197278
申请日：2021-03-10
申请人： Gunderson LLC
摘要： Subassemblies for railroad tank cars are herein disclosed. In some embodiments, the subassembly includes a center sill including a generally horizontal top member and a pair of upright side plates spaced apart laterally from each other and a head brace having a lower margin welded to the top member of the center sill and an upper margin welded to the head of the tank. Each of the side plates having a top surface and an opposed bottom surface, the top surface being planar within a longitudinal central portion and at least a substantial part of a first longitudinal end portion. The bottom surface is planar and parallel to the top surface within the longitudinal central portion and a second longitudinal end portion. At least a substantial part of the bottom surface within the first longitudinal end portion has a shape that includes or approximates one or more radiuses of curvature.
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公开(公告)号：US11225273B2
公开(公告)日：2022-01-18
申请号：US16556374
申请日：2019-08-30
发明人： Paul Steven Wike
摘要： A truck assembly is configured to travel along a track having rails. The truck assembly includes a bolster that includes a first flange, a second flange, and a web connecting the first flange to the second flange. The first flange, the second flange, and the web form an I-beam.
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公开(公告)号：US11225271B2
公开(公告)日：2022-01-18
申请号：US16550889
申请日：2019-08-26
发明人： Paul Steven Wike
摘要： A damping system for a truck assembly of a rail vehicle includes a first friction shoe configured to engage a first portion of a side frame of the truck assembly, and a first lever pivotally coupled to the first friction shoe.
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公开(公告)号：US11220279B2
公开(公告)日：2022-01-11
申请号：US16031556
申请日：2018-07-10
发明人： Michael Lumpkin , Michael Mason
摘要： In accordance with one aspect of the present disclosure, a wear ring assembly is provided for a railway roller bearing. The wear ring assembly includes a wear ring having a central opening for receiving a journal of a railway wheel assembly and an insert including a plurality of spacers configured to extend in the opening of the wear ring to separate the wear ring from the journal. The spacers are spaced apart from each other about the wear ring. The insert may include one or more flanges that separate the wear ring from a bearing cone.
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公开(公告)号：US20220001904A1
公开(公告)日：2022-01-06
申请号：US17276335
申请日：2019-09-09
发明人： Haipeng KONG , Xu WANG , Hongyong CAO , Xiaoning CAO , Pingyu ZHOU
摘要： Provided is a method for controlling an anti-yaw damper, including: obtaining lateral acceleration signals of a frame and performing a first preprocessing on the lateral acceleration signals; obtaining a pressure difference between two chambers of an anti-yaw damper piston and performing a second preprocessing of the pressure difference; obtaining an MPPT algorithm objective function value at the current moment and an MPPT algorithm objective function value at the previous moment according to first preprocessing results and second preprocessing results, and comparing the MPPT algorithm objective function value at the current moment with the MPPT algorithm objective function value at the previous moment; and controlling the adjustment direction of an electromagnetic proportional valve of the anti-yaw damper according to the comparison result. According to the method, the damping force of the anti-yaw damper can be adjusted in real time, therefore the adaptability of the damper in different wheel wear conditions and the kinetic stability of a motor train unit are improved. Also provided is an apparatus for controlling an anti-yaw damper.
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公开(公告)号：US20210347393A1
公开(公告)日：2021-11-11
申请号：US17308966
申请日：2021-05-05
发明人： Brian W. PETELKA
摘要： A convertible wheel is described that is interchangeably used with at least two different car plate designs and tracks. In particular, there is provided a wheel for use with a bearing and a car plate in a tarpaulin system. The wheel comprises a cylindrical body with a groove, first face, an opposed second face, and a central cavity positioned therebetween for receiving the bearing therein. The first face has a first opening with a first diameter, and the second face has a second opening with a second diameter that is smaller than the first diameter. Either the first face or the second face can be positioned facing the car plate.
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57.发明申请公开(公告)号：US20210339633A1
公开(公告)日：2021-11-04
申请号：US17274024
申请日：2018-09-11
摘要： A variable-gauge train control apparatus for a variable-gauge train having a gauge variable in a gauge conversion section includes: a plurality of main motors that transmits driving force to axles and wheels; a plurality of inverters that outputs voltage to at least one of the main motors; and voltage control units that control the individual output voltages of the plurality of inverters. Each of the voltage control units corresponds to one of the inverters and, when at least one of the axles to be subjected to the driving force controlled by the corresponding one inverter is within the gauge conversion section, controls the speed of the associated main motors by using, as a speed command value, a train speed converted into a rotational frequency.
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公开(公告)号：US11161529B2
公开(公告)日：2021-11-02
申请号：US16385856
申请日：2019-04-16
发明人： Jérémy Clavier
摘要： Disclosed is a railway vehicle with a car and a bogie. The bogie includes a chassis and a secondary suspension system. The secondary suspension system includes a jack and a power supply device of the jack fluidly connected to the jack by at least one flow limiter. The jack is configured to go from a first so-called passive configuration, in which the supply device is inactive, the jack then being able to passively damp the oscillations between the car and the chassis using the flow limiter, to a second so-called active configuration in which the supply device is configured to supply the jack in order to modify the distance between the car and the chassis or in order to keep the distance constant between the car and the chassis.
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公开(公告)号：US20210331720A1
公开(公告)日：2021-10-28
申请号：US16617507
申请日：2019-05-22
发明人： Qingmei LIU , Bin ZHAO , Ke YUAN , Wansheng FENG
IPC分类号： B61F5/08
摘要： A method for improving fatigue resistance performance of a locomotive rubber-metal pad with variable thickness improves the fatigue resistance performance of the rubber-metal pad and prevents rubber and metal from being torn during running by changing a structure of the rubber and the metal of the rubber-metal pad and adjusting a shape and position relationship between the rubber and the metal. The shape and the position relationship of the rubber metal is adjusted by adjusting thickness of a rubber layer between the rubber and the metal of the rubber-metal pad so that the rubber layer has variable thickness. The fatigue resistance performance of the rubber-metal pad is improved by adjusting the thickness of the rubber layer.
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公开(公告)号：US11155278B2
公开(公告)日：2021-10-26
申请号：US16334790
申请日：2017-02-28
申请人： BYD COMPANY LIMITED
发明人： Lin Ren , Hao Zeng , Junjie Liu , Fanghong Peng
IPC分类号： B61C9/50 , B60L5/39 , B61C3/02 , B61D19/02 , B61F5/02 , B61F5/52 , B61F13/00 , E01B25/10 , B61F9/00 , B61D23/00
摘要： The present disclosure provides a bogie, a rail vehicle having same, and a rail transport system. The bogie includes: a bogie frame, where the bogie frame has a straddle recess straddling a rail; a first running wheel and a second running wheel, where the first running wheel and the second running wheel are pivotably mounted onto the bogie frame respectively and are coaxially spaced apart; a third running wheel and a fourth running wheel, where the third running wheel and the fourth running wheel are pivotably mounted onto the bogie frame respectively and are coaxially spaced apart; a driving device, where the driving device is located between the first running wheel and the second running wheel, and the first running wheel and the second running wheel are driven by the driving device; and/or the driving device is located between the third running wheel and the fourth running wheel, and the third running wheel and the fourth running wheel are driven by the driving device. The bogie according to this embodiment of the present disclosure facilitates optimization of the structure of an escape passage, and has advantages such as high space utilization, high stability, and strong weight bearing capability.
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