B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
B60T15/02—Application and release valves
B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
B60T15/184—Railway control or brake valves
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Engineering & Computer Science
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Transportation
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Mechanical Engineering
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Valves And Accessory Devices For Braking Systems
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Dispositif de commande d'un essieu traine d'appoint, a suspension pneumatique et a deplacement vertical, d'un vehicule automobile utilitaire
Dispositif de changement d'assiette pour véhicule à suspension pneumatique, en particulier pour véhicule industriel destiné au transport des personnes
Soupape de frein dependant de la charge pour commander la pression regnant dans la conduite de frein d'une installation de frein a air comprime d'un vehicule, notamment pour des wagons de chemin de fer