Vehicle axle vent tube

B - Operations – Transporting – 60 – B

Patent

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Details

B60B 35/00 (2006.01) F16H 57/02 (2006.01)

Patent

CA 2437947

A vent tube for hollow axles of heavy-duty vehicles such as semi-trailers releases built-up air pressure from the wheel hub and axle while preventing ingress of contaminants into the axle and hub. The vent tube includes a tubular portion preformed from a flexible material into a generally coiled configuration. The tubular portion is biased to the coiled state so that when stretched about the axle and released, it firmly grips the axle without the need for fasteners. One end of the tubular portion includes fitting for plumbing into the axle and the opposite end includes a one-way check valve such as a duck bill. The vent tube is disposed in a protected location within the hollow beam of the vehicle suspension assembly, and on a relatively stress- free location of the axle within a window of an axle sleeve.

L'invention concerne un tuyau d'aération pour essieux creux de véhicules lourds tels que les semi-remorques, libérant une pression d'air séparée du moyeu et de l'essieu de la roue tout en prévenant l'entrée de contaminants dans l'essieu et le moyeu. Le tuyau d'aération comprend une partie tubulaire préformée à partir d'un matériau flexible selon une configuration généralement en spirale. La partie tubulaire est polarisée à l'état spiralé de manière que lorsqu'elle s'étire autour de l'essieu et qu'elle est libérée, elle saisisse solidement l'essieu sans nécessiter d'éléments de serrage. Une extrémité de la partie tubulaire comprend un raccord destiné à être inséré dans l'essieu et l'extrémité opposée comprend un clapet antiretour unidirectionnel, par exemple un bec de canard. Le tube d'aération est placé dans un emplacement protégé dans la tige creuse de l'ensemble de suspension du véhicule, et sur un emplacement relativement sans contrainte de l'essieu dans une fenêtre du manchon de l'essieu.

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