A transformer holding device for an electric locomotive having a transformer, includes at least one transformer support which is configured in such a way that the transformer can be displaced on an underframe of the electric locomotive during a maintenance operation so that the electric locomotive attains a predetermined center of gravity position. The transformer is fixed to the underframe of the electric locomotive during operation. A transformer arrangement for an electric locomotive and an electric locomotive are also provided.

This power conversion device for a railway vehicle includes a first radiation fin radiating heat from a semiconductor device and a second radiation fin arranged at a prescribed interval from the first radiation fin in a traveling direction for radiating heat from the semiconductor device. At least either one of the first and second radiation fins includes an air duct formed by partially not providing a plurality of fin portions.

This power conversion device for a railway vehicle includes a first radiation fin radiating heat from a semiconductor device and a second radiation fin arranged at a prescribed interval from the first radiation fin in a traveling direction for radiating heat from the semiconductor device. At least either one of the first and second radiation fins includes an air duct formed by partially not providing a plurality of fin portions.

A device for reducing vibrations of a vehicle, in particular a rail vehicle, wherein the device includes at least a vehicle frame, a brake carrier, a mechanically operative brake unit and a suspension bracket that interconnects the vehicle frame and brake carrier, where the suspension bracket includes at least one element elastically connecting the vehicle frame to the brake carrier that allows movement of the brake carrier in the transverse direction of the vehicle frame in order to dampen vibrations.

A device for reducing vibrations of a vehicle, in particular a rail vehicle, wherein the device includes at least a vehicle frame, a brake carrier, a mechanically operative brake unit and a suspension bracket that interconnects the vehicle frame and brake carrier, where the suspension bracket includes at least one element elastically connecting the vehicle frame to the brake carrier that allows movement of the brake carrier in the transverse direction of the vehicle frame in order to dampen vibrations.

An arrangement for positioning a transformer in a rail vehicle, where the rail vehicle has a transformer support which fastens the transformer at a predetermined position in the rail vehicle. The transformer support is arranged on an underframe of the rail vehicle. The transformer is connected to the transformer support via a sliding guide, wherein a positional change of the transformer relative to the underframe of the rail vehicle can be set by way of the sliding guide. The sliding guide is a hydrostatic sliding guide.

An arrangement for positioning a transformer in a rail vehicle, where the rail vehicle has a transformer support which fastens the transformer at a predetermined position in the rail vehicle. The transformer support is arranged on an underframe of the rail vehicle. The transformer is connected to the transformer support via a sliding guide, wherein a positional change of the transformer relative to the underframe of the rail vehicle can be set by way of the sliding guide. The sliding guide is a hydrostatic sliding guide.

There is provided an underfloor duct which enables inspection of electric equipment to be easily performed, has a simple structure, and hardly allows water to intrude into a duct passage.

An underfloor duct according to an aspect of the present invention is an underfloor duct, provided under a floor of a railcar, for storing electric equipment including a cable. The underfloor duct includes: a box having a frame that projects upward, and an opening that opens downward; and a lid that closes the opening and forms a duct passage between the lid and the box. An end portion of the box is located outside an end portion of the lid in a car width direction.

There is provided a hanger bolt which can reduce the burden of positioning work and which hardly corotates with a nut upon nut coupling.

A connecting hanger bolt according to an aspect of the present invention is a hanger bolt which is inserted into a hanging groove rail having an opening narrower than the outer diameter of a bolt head and extending in a hanging groove rail longitudinal direction and from which a device is hangable. The connecting hanger bolt includes: a plurality of bolts which move in the hanging groove rail longitudinal direction in the hanging groove rail and whose shaft portions pass through the opening; and a connecting member which connects the plurality of bolts to each other, and keeps an interval in the hanging groove rail longitudinal direction between the plurality of bolts adjacent to each other.

When a brake system on a commercial vehicle, lateral acceleration and/or yaw of the vehicle are monitored and compared to a first predetermined threshold. If the first predetermined threshold is exceeded, a precharge command is sent to the brake system to precharge one or more air chambers by temporarily deactivating a modulator valve and activating an antilock traction relay valve in order to charge the air chambers up to a level permitted by the modulator valve. Upon detecting a panic braking event, a command signal is sent to the brake system to release the precharged air to facilitate braking.