Search International and National Patent Collections

1. (WO2018036969) AIR FEED FOR AN AIR SPRING OF A RAIL VEHICLE

Pub. No.:    WO/2018/036969    International Application No.:    PCT/EP2017/071038
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Aug 22 01:59:59 CEST 2017
IPC: B61F 1/12
B61F 5/10
Applicants: SIEMENS AG ÖSTERREICH
Inventors: MAYER, Wilhelm
Title: AIR FEED FOR AN AIR SPRING OF A RAIL VEHICLE
Abstract:
The invention relates to an air feed for an air spring (3) of a rail vehicle, comprising a main crossbeam (1) composed of at least one extruded light-metal profiled element (2), which light-metal profiled element is oriented in the longitudinal direction of the rail vehicle in the installed position of the main crossbeam (1), and an air spring (3), which is arranged on the main crossbeam (1), wherein the main crossbeam (1) comprises at least one closed profile chamber (4) having a circular cross-section, which profile chamber extends over a certain length of the extruded light-metal profiled element (2), and wherein at least one borehole (5) in a wall of the main crossbeam (1) connects the gas chamber (6) of the air spring to the profile chamber (4).