Patent · US Active

Chassis for a rail vehicle

US10300932B2 · kind B2 · utility

2Cited by

0References

8Claims

0Family size

Assignee

Siemens Mobility GmbH · DE

Inventors

Heiko Meyer · Uttenreuth, DE
Hans Juergen Maerkl · Stadtbergen, DE

Key dates

Filing date	Jul 2, 2015
Grant date	May 28, 2019
Priority date	—
Expiry date	Oct 11, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB61K9/00
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.