Axle with magnetic guidance for railroad vehicles
US4920893A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jun 10, 1988 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Jun 10, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2200/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An orientable axle with independent wheels comprises a beam perpendicular the axis of the wheels. It also comprises sensors (16, 20) for measuring the position of the beam with respect to the track; a reference position with respect to the track is predetermined. Electromagnets (22) carried by the axle cooperate with the track for exerting on the axle a force for orientating it. A control circuit delivers a current to the electromagnets for moving the axle in an angular direction which tends to cancel out the difference between the measured position and the reference position. The axle can be used on railroad vehicles having to negociate curves at high speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.