Bombardier Transportation Gmbh

Louis Dumoulin

Benoit Lussier

Mario Monette

David Bazinet

Benoît Lussier

A retaining system for a mass-transit vehicle adapted to travel on a guideway includes a longitudinal retaining track having two retaining rails. Each retaining rail has a projection projecting inwardly toward the other retaining rail. A grabbing mechanism of the mass-transit vehicle has grabbing portions extending outwardly underneath the projections of the retaining rails. The grabbing portions are pivotally and resiliently connected to a wheelset of the mass-transit vehicle proximate a midplane of the body. When the mass-transit vehicle rolls on one side past a predetermined angle, an opposite one of the grabbing portions is operative to contact a corresponding one of the horizontal projections. The roll of the mass-transit vehicle is thereby gradually stopped under a force developed by a corresponding resilient element.

Anti-seismic retaining system for a mass transit vehicle

A secondary suspension system for a railcar comprises a chassis, a primary spring, a levelling actuator, a first hydraulic circuit and a secondary spring. The levelling actuator is adapted to be connected to the carbody. A piston shoulder, located at the lower portion of the piston and below an opening in the chassis, reaches farther than the opening so as to be capable of catching the chassis. The secondary spring is at least partially positioned underneath the piston shoulder. The piston is operative to adopt a high position inside the body under a pressure of a hydraulic fluid injected in a lower chamber below a piston head. This makes the piston shoulder abut against the chassis, thereby compressing the primary spring between the body and the chassis without compressing the secondary suspension.

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Marieville, Canada

Louis Dumoulin