GB129180A - Improvements relating to Steam Heating Systems for use with Railway and like Vehicles. - Google Patents

Abstract

129,180. Chevillot, A. Oct. 11, 1918. Heating by circulation of fluids.-Relates to steam heating systems for railway and like vehicles of the type in which an injector nozzle is arranged to circulate any uncondensed steam from the heaters through the system again. According to the invention, each injector nozzle 12, Fig. 3, is located in a connexion 13 leading between the steam distributing pipe 5 and a pipe 9 leading to each radiator or heater 10, Fig. 2, and the exhaust outlet pipe 11 is arranged adjacent to the nozzle 12 in such a way that the uncondensed steam is projected again into the pipe 9, while the water of condensation escapes to the atmosphere. The arrangement shown comprises a union 14 at. tached to the connexion 13 and projecting into the open end of the pipe 11. In addition to the distributing pipes 5 for each carriage, a main steam pipe 1 is provided extending the entire length of the train, and both pipes are mounted on a common support of which the connexion 13 forms a part. By this arrangement, heat is readily conducted from the pipe 1 through the support to the injector nozzle, pipe 5 and outlet 11, thus preventing freezing of the system, the transfer of heat being facilitated by the provision of a chamber 16 in the support 13 in free communication with the pipe 1. Reducing valves 7 may be arranged in the branches between the main steam pipe 1 and the pipes 5 so that a uniform pressure may be obtained in all the pipes 5.