| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 105165000 | Radial | 19 |
| 20130019775 | RAIL VEHICLE WITH VARIABLE AXIAL GEOMETRY - A rail vehicle with variable axial geometry includes at least two axles, wherein a horizontal angular position of each axle with respect to the vehicle frame may be changed, and wherein the angular position of each axle is adjusted continuously during operation of the rail vehicle in such a way that a predefined lateral displacement and a predefined axial angle are achieved. | 01-24-2013 |
| 20130098261 | Rail Road Freight Car Truck with Self-Steering Rocker - A rail road freight car truck has a truck bolster mounted transversely between a pair of side frames. The mounting interface between the wheelset axle ends and the sideframe pedestals allows self-restorative longitudinal rocking self-steering motion proportionately resisted as a function of displacement and of the vertical force carried at the interface. The center of rotation of the rocking motion is lower than the center of rotation of the axle. The interface may also permit lateral rocking swing motion of the sideframes. Auxiliary centering elements may be mounted in the pedestal seats. The auxiliary centering elements may be elastomeric. The truck may also have low stick-slip friction dampers, and may be provided with brake linings, or similar features. The friction dampers may be mounted in a four-cornered arrangement at each end of the truck bolster. | 04-25-2013 |
| 20140158015 | RAILWAY VEHICLE STEERING TRUCK - To prevent separation of a truck frame and a wheel axle and to continue supporting a vehicle, even if damage has occurred to a steering device of a steering truck in which front-back support of a steering axle is performed only by a steering mechanism. | 06-12-2014 |
| 105167000 | Bogie | 16 |
| 20090126599 | RAIL ROAD CAR TRUCK - A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to self steering that is proportional to the weight carried across the interface. The trucks may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behavior. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both. | 05-21-2009 |
| 20120037031 | LOW FLOOR VEHICLE - A the low floor vehicle includes a journal member which couples a pair of wheels and is attached to a truck frame; and a truck frame lateral beam arranged along a vehicle width direction closer to the center of the truck frame than the journal member. The journal member is turnable with respect to the struck frame. A pair of left and right stub links extending between the journal member and the truck frame lateral beam, are provided. Axes passing both ends of the pair of stub links are arranged to tilt so as to widen a space between the ends in the vehicle width direction with going from the truck frame lateral beam toward the journal member. Both the ends of the stub links are attached to be pivotable respectively around axes which extend in a height direction to the journal member and the truck frame lateral beam. | 02-16-2012 |
| 105168000 | Positive control | 14 |
| 20090025599 | STEERED AXLE RAILWAY TRUCK - A railway truck has a frame, and two wheel-sets operatively connected to the frame. Each wheel-set includes a corresponding axle, and two wheels disposed on the axle. A first steering lever is pivotally connected to the first end portion of the first axle about a first pivot axis and to the frame about a second pivot axis. A second steering lever is pivotally connected to the second end portion of the first axle about a third pivot axis and to the frame about a fourth pivot axis. A first line passing through the first and second pivot axes crosses a second line passing through the third and fourth pivot axes at less than a predetermined distance from a vertical centerline of the truck when the first and second axles are parallel. A railcar including the truck is also disclosed. | 01-29-2009 |
| 20090133599 | Steering links - This invention relates to steering links for bogies and to wagons incorporating such bogies, a variable length steering link assembly for a bogie including an elongate link having a generally T-shaped head at each end and an anchor for each end, wherein each anchor defines an axially extending chamber for slidably receiving a respective head an a compression spring wherein in one chamber the spring acts on the end fact of its associated head and in the other chamber the spring acts on the back face of its associated head. | 05-28-2009 |
| 20100011984 | Self-Steering Radial Bogie - A self-steering system for a radial bogie of a railroad vehicle is provided. The self-steering system includes a plurality of links which connect the leading and trailing wheelsets to the bogie frame. Each of the links is adapted to provide a smaller degree of movement between the link and the wheelset at one end and a larger degree of movement between the link and the bogie frame at the other end. | 01-21-2010 |
| 20100154672 | RAIL ROAD CAR TRUCK AND BOLSTER THEREFOR - A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to deflection that is proportional to the weight carried across the interface. The truck may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behavior. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both. The friction dampers may operate to yield upward and downward friction forces that are not overly unequal. The friction dampers may be mounted in a four-cornered arrangement at each end of the truck bolster. The spring groups may include sub-groups of springs of different heights. | 06-24-2010 |
| 20100236446 | TWO-AXLE TRUCK FOR A RAILWAY CAR AND A RAILWAY CAR - Lateral pressure which develops in the front wheelset when traveling along a curved track is decreased while suppressing an increase in costs as much as possible. A two-axle truck for a railway car has a front wheelset having wheels with a first tread gradient and a rear wheelset having wheels with a second tread gradient which is different from the first tread gradient. The tread gradient of the wheels of the rear wheelset is larger than the tread gradient of the wheels of the front wheelset. | 09-23-2010 |
| 20100326317 | Steering Railway Bogie - The present invention is directed to a railway bogie with a mounted vehicle body including a frame; a plurality of wheelsets and steering linkages linking the wheelsets so that the wheelsets can cooperate to be in steering alignment. The bogie has a wheelset body linkage pivotally connecting the steering linkages with the bogie body so to position the body relative to the wheelsets and two alignment rams to position the body relative to the frame. The bogie also has sensors for monitoring the yaw angle and yaw velocity. The sensor input is then processed to estimate track curvature and determine the train speed and yaw velocity of the vehicle body. The processor then actuates the alignment rams to adjust the position of the body relative to the frame in response to the track curvature and current frame positions to minimize wheel contact creepage and maximize bogie stability. | 12-30-2010 |
| 20110146530 | TWO-AXLE TRUCK FOR A RAILWAY CAR AND A RAILWAY CAR - Lateral pressure which develops in the front wheelset when traveling along a curved track is decreased while suppressing an increase in costs as much as possible. A two-axle truck for a railway car has a front wheelset having wheels with a first tread gradient and a rear wheelset having wheels with a second tread gradient which is different from the first tread gradient. The tread gradient of the wheels of the rear wheelset is larger than the tread gradient of the wheels of the front wheelset. | 06-23-2011 |
| 20110185939 | RAIL ROAD CAR TRUCK - A rail road freight car truck has a truck bolster and a pair of side frames, the truck bolster being mounted transversely relative to the side frames. The mounting interface between the ends of the axles and the sideframe pedestals allows lateral rocking motion of the sideframes in the manner of a swing motion truck. The lateral swinging motion is combined with a longitudinal self steering capability. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to self steering that is proportional to the weight carried across the interface. The trucks may have auxiliary centering elements mounted in the pedestal seats, and those auxiliary centering elements may be made of resilient elastomeric material. The truck may also have friction dampers that have a disinclination to stick-slip behavior. The friction dampers may be provided with brake linings, or similar features, on the face engaging the sideframe columns, on the slope face, or both. | 08-04-2011 |
| 20130098262 | Relieved Bearing Adapter for Railroad Freight Car Truck - A rail road freight car truck has a truck bolster mounted transversely between a pair of side frames. The mounting interface between the wheelset axle ends and the sideframe pedestals includes a bearing adapter. It has an upper portion that seats in the sideframe pedestal. The underside, lower portion, of the bearing adapter defines sits on the wheelset bearing casing. The lower portion has an apex, and has a first land portion for engaging a first portion of the bearing casing, and a second land portion for engaging a second portion of the bearing casing. The apex lies circumferentially between the first and second lands portions. There is a relief formed at the apex over the bearing race, so that vertical load is split to enter the casing to either side of top dead center. | 04-25-2013 |
| 20130312634 | SELF-STEERING RAILWAY BOGIE - The invention relates to railway bogies, and more particularly, but not exclusively to a self-steering bogie for a locomotive. In accordance with the invention there is provided a self-steering railway bogie ( | 11-28-2013 |
| 20140137764 | RAILWAY VEHICLE STEERING TRUCK - In the event that a steering device is damaged, the damaged component is prevented from dropping onto a surface of a track or prevented from making contact with a surface of a track, even if a component to prevent dropping is not newly installed. | 05-22-2014 |
| 20140202353 | Train Suspension System - A suspension system for a train vehicle includes at least one inerter to minimize track wear. Track wear may be measured by direct measures such as wear work, or indirect measures such as yaw stiffness. “Minimizing” track wear means that such measures are reduced below values which are achievable with conventional technology while maintaining acceptable values of other performance metrics, such as ride comfort or least damping ratio. The suspension system may comprise at least one damper connected in series with the at least one inerter. The suspension system may be the primary or the secondary suspension system of a train vehicle. | 07-24-2014 |
| 20140261062 | METHOD AND DEVICE FOR STEERING TRUCK OF RAILWAY VEHICLE, AND TRUCK - The object is to solve the issue of an over-steered state at an exit straight portion in addition to enhance a curve passage performance than when a steering angle of front and rear axles is set at a radial steering angle. A steering method for a steering device intentionally turns two axles ( | 09-18-2014 |
| 20140261063 | Passive Steering Assist Device for a Monorail Bogie - A traction control assembly for connection between a monorail bogie frame and a monorail car. The traction control assembly comprising a first traction link pivotally connected to a first bell crank mechanism and a second traction link pivotally connected to a second bell crank mechanism. The first traction link and the second traction link are capable of absorbing traction forces applied to the monorail bogie. The traction control assembly further comprises a cross link interconnecting the first bell crank mechanism and the second bell crank mechanism and a passive steering assist device interconnecting the first bell crank mechanism and the second bell crank mechanism. The steering assist device causes the traction control assembly to insert shear forces on the monorail bogie during travel of the monorail bogie over a curved section of monorail track for facilitating rotational motion between the monorail bogie and the monorail car. | 09-18-2014 |
