An air intake port has an opening part and an air intake port cover forming an air flow channel from the opening part to the air intake port. The air intake port cover has a guide plate to block the opening part and the air intake port from each other and leave an air flow path between the guide plate and an outer perimeter surface facing a vehicle body, a discharge port formed in the outer perimeter surface, a discharge port cover separating the discharge port and the air intake port from each other, and leaving an air flow path from the opening part to the discharge port, and a pair of cylindrical members, one end of each being connected to two holes formed in the discharge port cover, and the other ends facing each other in a travel direction, and tapering in cross-sectional area.

An air intake port has an opening part and an air intake port cover forming an air flow channel from the opening part to the air intake port. The air intake port cover has a guide plate to block the opening part and the air intake port from each other and leave an air flow path between the guide plate and an outer perimeter surface facing a vehicle body, a discharge port formed in the outer perimeter surface, a discharge port cover separating the discharge port and the air intake port from each other, and leaving an air flow path from the opening part to the discharge port, and a pair of cylindrical members, one end of each being connected to two holes formed in the discharge port cover, and the other ends facing each other in a travel direction, and tapering in cross-sectional area.

A motor suspension assembly includes a frame bracket configured to be coupled with a vehicle frame having mounting locations for upper and lower suspension bars that are positioned for a direct current (DC) traction motor to rest upon the upper suspension bar and for elastic pads to be disposed between the upper and lower suspension bars. The frame bracket is configured to be coupled with the vehicle frame in place of at least one of the upper suspension bar or the lower suspension bar. The assembly also includes a dog bone suspension link configured to be coupled with a nose bracket of an alternating current (AC) traction motor and the frame bracket. The dog bone suspension link is configured to absorb vibration by at least partially rotating about one or more of the nose bracket or the frame bracket during operation of the AC traction motor.

The systems and methods described herein include monitoring systems and methods that monitor speeds of a motor of a vehicle represented as a pulse signal indicative of a rotational position of the motor. The systems and methods include receive a pulse signal from a speed sensor coupled to a traction motor. The pulse signal is indicative of a rotational position of the traction motor. The systems and methods include analyze the pulse signal to identify per-revolution signal reoccurrences that meet designated criteria, and determine a defect based on the per-revolution signal reoccurrences that are identified. The defect is one or more of a wheel defect, a bearing defect, or a gear defect.

A bogie (6) comprises a bogie frame (7). The bogie frame (7) is mounted on bearings (7b) via a first spring device (7a). A wheelset shaft (8) is mounted in the bearings (7b). A wheelset drive (9) concentrically surrounds the wheelset shaft (8) and acts thereupon. The wheelset drive (9) is spring-mounted on the bearings (7b) by means of a second spring device (16) exclusively associated with the wheelset drive (9). A two-level clutch (15) is arranged between the wheelset drive (9) and the wheelset shaft (8).

A bogie (6) comprises a bogie frame (7). The bogie frame (7) is mounted on bearings (7b) via a first spring device (7a). A wheelset shaft (8) is mounted in the bearings (7b). A wheelset drive (9) concentrically surrounds the wheelset shaft (8) and acts thereupon. The wheelset drive (9) is spring-mounted on the bearings (7b) by means of a second spring device (16) exclusively associated with the wheelset drive (9). A two-level clutch (15) is arranged between the wheelset drive (9) and the wheelset shaft (8).

An assembly for a vehicle, in particular a rail vehicle, includes an undercarriage unit having at least one first wheel set supported on a track and a main body supported on the first wheel set. The main body has a coupling mechanism for mechanically coupling to at least one car body of the vehicle. At least one first driving motor for driving the first wheel set, at least one power supply unit for supplying the driving motor with electrical power and at least one inverter unit are provided. The power supply unit is disposed at least partially in a region of the undercarriage unit in order to permit the undercarriage unit of the assembly to be expanded with regard to the functionalities of the undercarriage unit.

An assembly for a vehicle, in particular a rail vehicle, includes an undercarriage unit having at least one first wheel set supported on a track and a main body supported on the first wheel set. The main body has a coupling mechanism for mechanically coupling to at least one car body of the vehicle. At least one first driving motor for driving the first wheel set, at least one power supply unit for supplying the driving motor with electrical power and at least one inverter unit are provided. The power supply unit is disposed at least partially in a region of the undercarriage unit in order to permit the undercarriage unit of the assembly to be expanded with regard to the functionalities of the undercarriage unit.

The use of short consists of powered and unpowered freight cars for moving cargo from its source to transfer facilities is described. The use of short consists of powered and unpowered freight cars can enable the efficient operation of unit trains. Single self-powered rail cars or short consists (up to about 25 cars) can overcome a number of problems associated with long unit trains such as dynamic instabilities, inability to stop quickly if needed and long headway time required between trains. A system of feeder trains (aggregators) to facilitate keeping unit trains in more or less constant motion is described. The use of gearing and shafts for power transmission from traction motors installed on various types of freight cars using the structure of the existing freight car truck is also described.

The use of short consists of powered and unpowered freight cars for moving cargo from its source to transfer facilities is described. The use of short consists of powered and unpowered freight cars can enable the efficient operation of unit trains. Single self-powered rail cars or short consists (up to about 25 cars) can overcome a number of problems associated with long unit trains such as dynamic instabilities, inability to stop quickly if needed and long headway time required between trains. A system of feeder trains (aggregators) to facilitate keeping unit trains in more or less constant motion is described. The use of gearing and shafts for power transmission from traction motors installed on various types of freight cars using the structure of the existing freight car truck is also described.