Running gear for a rail vehicle and associated rail vehicle

US11518420B2 · kind B2 · utility

Assignee

• Bombardier Transportation GmbH · DE

Inventors

• Federic Carl · Kassel, DE
• Thimo Schönemann · Iserlohn, DE
• Andreas Wolf · Munich, DE
• Wolfgang Auer · Ried im Innkreis, AT

Key dates

• Filing date: May 11, 2018
• Grant date: Dec 6, 2022
• Expiry date: Jun 15, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61F5/32
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A running gear for a rail vehicle includes one or more wheel sets, each having a revolution axis and each being guided by a pair of transversally spaced axle boxes. The running gear further includes a running gear frame, a primary suspension assembly between each of the axle boxes and the running gear frame, and a secondary suspension stage for supporting a vehicle superstructure on the running gear frame. Each primary suspension assembly has at least a main spring assembly having a vertical stiffness and a horizontal stiffness that is identical in a transverse direction of the running gear frame and in a longitudinal direction of the running gear frame perpendicular to the transverse direction. The primary suspension assembly further has an anisotropic interface assembly in series with the main spring assembly between the running gear frame and the axle box. The anisotropic interface assembly is such that the primary suspension assembly has a transverse stiffness and a longitudinal stiffness wherein the transverse stiffness is substantially different from the longitudinal stiffness.