Improvements in three-way distributor valves for compressed air brakes, especially employed in vehicles on lanes (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in three-way valves for compressed air brakes especially used in vehicles on rails, characterized in that said valves can be formed, based on a main valve (1) containing the distribution and return pistons, respectively, provided of the following devices, constructed, in each case in the form of a constructive unit: a) nozzles (3,5) which serve to achieve conveniently long brake and release times, as well as the charging time for the compressed air reservoir ; b) set of adjustable nozzles (7, 9, 15) to achieve the prescribed braking and releasing times in each class of train, as well as a monitoring device (19) for loading the compressed air tank; c) adjustable nozzle tabs (7, 25, 15) to achieve the prescribed braking and releasing times in the different kinds of trains, by means of a pre-distribution circuit that contains not only the main valve (1) but also the monitoring device (19) for loading the compressed air reservoir, which influences a relay valve (23) for the direct intake of pressures for the brake cylinders; d) composition made according to c) in which the said relay valve (23) is replaced by a pressure transmitting device (27) which, depending on the load and/or speed of the vehicle, thereby achieving the adaptation of the valve to each practical application. (Machine-translation by Google Translate, not legally binding)