HEATING SYSTEM FOR VEHICLE MECHANICAL TRANSMISSION UNITS Russian patent published in 2016 - IPC F01M5/02 F28D7/10 

FIELD: electronics.

SUBSTANCE: invention relates to a device for heat preparation and maintenance of thermal mode of the gear box (GB) and drive axle gear boxes. Heating system comprises a heat-insulated muffler-recuperator made in the form of a "pipe in pipe" heat exchanger. On the internal pipe of the muffler-recuperator there are holes for passage of exhaust gases from the outside into the pipe. Heat transfer tubes are also installed in the muffler-recuperator attached to each other with their end flanges by means of a welded joint in such a way, that cavities formed between the flanges of both sides of the muffler-recuperator interconnect inner cavities of the heat transfer tubes, GB and drive axles heat exchangers connected in parallel. GB heat exchanger is mounted on the inner side of the GB wall, and its shape is similar to the shape of the wall, while heat exchangers of the drive axles are mounted on the external part of the main gears crank chambers and are made similar to their shape.

EFFECT: higher efficiency of heat preparation and maintenance of thermal mode of units is reached.

4 cl, 3 dwg