Chassis for a rail vehicle

US10246107B2 · kind B2 · utility

Inventors

• Heiko Meyer · Uttenreuth, DE
• Hans Juergen Maerkl · Stadtbergen, DE
• Philipp Scholle · Aachen, DE

Key dates

• Filing date: Nov 25, 2014
• Grant date: Apr 2, 2019
• Expiry date: Aug 27, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61F5/386
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

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.