The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2019
Filed:
Nov. 25, 2014
Siemens Mobility Gmbh, Munich, DE;
Other;
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.