Hot material spraying equipment - has generator driven from engine to produce nozzle pipe heating current

摘要

The equipment sprays heated material such a bitumen, tar etc. on a surface, and forms a closed mobile unit with heated vessel containing the material, an engine-driven pump a movable electrically-heated pipe to the spray nozzle and a tank for the heating material, the latter also acting as the engine fuel. A generator (26), driven by the engine (24), is also included. It is able to supply the electric power needed to heat the pipe (20). This power can also be used to heat the spray nozzle.