B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 29/02 (2006.01) B60C 23/00 (2006.01)
Patent
CA 2689567
The invention relates to a purge valve (21) for a mounted assembly for a vehicle, consisting of a wheel comprising a rim (22) and of a tyre, said valve (21) comprising a body (23) associated with the rim (22) and a piston (24) capable of moving with respect to the body (23) between a closed position and a purge position, said valve (21) being normally closed. According to the invention, the valve (21) is made to open by the movement of the piston (24) in the space radially external to the rim (22), said opening being achieved through the action of a control force on the piston (24), this force being exerted from the space radially internal to the rim (22) and afforded by compressed air led from the space radially internal to the rim (22) as far as the radially internal surface of the piston (24) and the compressed air led from the space radially internal to the rim (22) as far as the radially internal surface of the piston (24) is at a pressure less than or equal to that of the mounted assembly.
L'invention concerne une vanne de purge (21) pour un ensemble monté pour véhicule constitué d'une roue comportant une jante (22) et d'un pneumatique, ladite vanne (21) comprenant un corps (23) associé à la jante (22) et un piston (24) mobile par rapport au corps (23) entre une position de fermeture et une position de purge et ladite vanne (21) étant normalement fermée. Selon l'invention, l'ouverture de la vanne (21) est obtenue par le déplacement du piston (24) dans l'espace radialement extérieur à la jante (22), ladite ouverture étant obtenue par action d'une force de commande sur le piston (24), exercée depuis l'espace radialement intérieur à la jante (22) et assurée par de l'air comprimé conduit depuis l'espace radialement intérieur à la jante (22) jusqu'à la surface radialement intérieure du piston (24) et l'air comprimé conduit depuis l'espace radialement intérieur à la jante (22) jusqu'à la surface radialement intérieure du piston (24) étant à une pression inférieure ou égale à celle de l'ensemble monté.
Michelin Recherche Et Technique S.a.
Robic
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