Electropneumatic brake control valve

B - Operations – Transporting – 60 – T

Patent

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Details

B60T 13/66 (2006.01)

Patent

CA 2233196

An electropneumatic brake control valve unit capable of operating at the interface of the emergency brake portion (20) or the service brake portion (10) of a standard brake control valve as a retrofit unit (40) or operating as a stand alone electropneumatic unit. The unit includes electric valves responsive to electrical signals and sensed brake pipe pressures to operate pneumatic valves to control the brake cylinder. The pneumatic valves are also operable independent of the electric control valves so as to allow braking with the electrical controls off or disables. The unit can operate in combination with a complete brake control valve or with either or none of its emergency and service portions.

Unité robinet électropneumatique de commande de frein, capable de fonctionner comme unité installée rétroactivement à l'interface de la partie frein de secours (20) ou de la partie frein à pied (10) d'un robinet de commande standard, ou comme unité électropneumatique autonome. L'unité comprend des clapets électriques répondant aux signaux électriques et aux pressions du tube de frein détectées, de façon à actionner les clapets pneumatiques et à commander le cylindre de frein. Les clapets pneumatiques peuvent également fonctionner indépendamment des clapets de commande électriques, ce qui permet le freinage quand les commandes électriques sont coupées ou hors service. L'unité peut fonctionner associée à un robinet de commande de frein complet, à sa partie frein de secours ou frein à pied, ou sans aucune de ces parties.

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