Siemens Mobility Gmbh

Siemens Aktiengesellschaft

Other

Hans Juergen Maerkl

Heiko Meyer

Manuel Kroiss

Martin Zaech

Wolfgang Rulka

Werner Breuer

Stefan Sebastian Lang

Frank Ebert

Robert Thiess

Guntram Ruef

Ralph Oliver Schmidt

Jens Vollert

Philipp Scholle

A wheel set intermediate frame for a rail vehicle includes a plurality of mounting interfaces for chassis components at predetermined positions. Part of the wheel set intermediate frame for a rail vehicle is also at least one defined mounting interface for fixing to a subframe of a car body of a rail vehicle. A rail vehicle and a method for producing a wheel set intermediate frame for a rail vehicle are also provided.

Wheel set intermediate frame for a rail vehicle

A method for compensating for a loss of traction of a rail vehicle, preferably a freight locomotive, in a track curve, is particularly pertinent when the rail vehicle is starting up and/or is on an incline. Comparably unfavorable frictional conditions between a track and at least one driven track wheel of the rail vehicle are changed into comparably favorable frictional conditions by actively steering the track wheel on the rail.

Method for compensating for a loss of traction of a rail vehicle

A chassis for a rail vehicle includes a chassis frame supported on at least first and second wheelsets and one A-frame linkage per wheelset on both sides of the chassis for horizontal axle guidance of the wheelset. Each A-frame linkage is connected in an articulated manner to one of two axle bearings of a wheelset by a wheelset-side bearing and to the chassis frame by two frame-side bearings. At least one of the bearings per A-frame linkage has a hydraulic bushing with variable longitudinal rigidity. The hydraulic bushing has at least one fluid chamber fillable with hydraulic fluid so that in the fluid chamber a hydraulic pressure can form for adjusting longitudinal rigidity. An acceleration sensor per axle bearing measures wheelset acceleration and an adjustment device adjusts hydraulic pressure in at least one of the fluid chambers depending on the measured wheelset acceleration.

Chassis for a rail vehicle

A chassis for a rail vehicle, in particular for a locomotive. A chassis frame is supported on first and second wheel sets and one triangular link per wheel set on both sides of the chassis for horizontally guiding the axle of the wheel set. An A-arm is hinged to one of two axle bearings by a wheel set-side bearing and by two frame-side bearings. The latter have elastomer bushings with a constant longitudinal and transverse rigidity. The former have hydraulic bushings with constant transverse rigidity and variable longitudinal rigidity. The bearings of each A-arm are arranged on the corners of a horizontal isosceles triangle. The tip of the triangle forms the wheel set-side bearing and the base forms the frame-side bearings. This resolves the conflicting objectives between dynamic running behaviors of the chassis when cornering and the driving stability when traveling straight ahead at a high speed.

A rail vehicle, in particular a locomotive, has at least one bogie with a bogie frame supported resiliently on sets of wheels, and a superstructure, which is supported resiliently on the at least one bogie and is mounted rotatably about a vertical axis, with a under frame. A removal device for removing snow and/or ice is arranged between the under frame and the bogie frame. The removal device has an inclined sliding surface which at least partially covers the bogie frame. Deposits of snow and/or ice both on the bogie frame and on the under frame of the superstructure can thereby be prevented or eliminated.

Rail vehicle

The wheel set shaft of a rail vehicle is protected in an effective and economical manner by a protection device. The device includes an elastomeric mat which can be easily placed on the wheel set shaft and retaining means for retaining the elastomeric mat on the wheel set shaft.

Growing community of inventors

Stadtbergen, Germany

Hans Juergen Maerkl