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1. (WO2015043692) DRAG REDUCING DEVICE

Pub. No.:    WO/2015/043692    International Application No.:    PCT/EP2014/002025
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Fri Jul 25 01:59:59 CEST 2014
IPC: B62D 35/00
Applicants: WABCO EUROPE BVBA
Inventors: DE BOCK, Robby
DIRK VAN DORSSER, Wouter
JONGEBREUR, Hessel, Jacobus
VAN RAEMDONCK, Gandert, Marcel, Rita
VAN RAEMDONCK, Hjalmar, Luc, Maria
Title: DRAG REDUCING DEVICE
Abstract:
Drag reducing device (1) for reducing aerodynamic drag at a trailing end (12) of a moving bluff body (10) comprising a first and a second panel (28,32), which are movable connected to each other to move together from a collapsed to an extended configuration. At least one bias element is provided for exerting a spring force to the first panel structure to support the movement of the panels. The bias element comprises a bendable spring rod (210). The spring rod extends along a curvature in a pre-tensioned condition in between the first and second panel from a back region B of the drag reducing device to a front region F of the drag reducing device, such that the spring rod exerts a spring force to the panel structure. The spring rod effectively supports at least one panel, while at the same time maintains a simple and reliable configuration of the drag reducing device.