AIR HEATER OF DRIVER'S CABIN OF ELECTRIC TRANSPORT Russian patent published in 2009 - IPC B60H1/00 F24H3/04 

FIELD: heating systems.

SUBSTANCE: air heater includes housing with air flow inlet, outlet and fastening fittings, air supply and heating unit including fan with electric motor in its shell and with impeller, heating element assembled and laid in the form of spiral-shaped element on the support along shell. In the second air supply and heating unit there provided is spiral-shaped heating element, fan with electric motor in its shell and with impeller. Each of two air supply and heating units is placed in metal cylindrical split casing installed coaxially each to its shell. Spiral-shaped heating element of each of air supply and heating units is made of pieces of spirals, which are oriented parallel to each other between neighbouring plates and electrically and in series connected. Ends of spirals are fixed on insulating materials installed in holes of plates which are made throughout their length; at that, plates are located between casing and shell. In addition, air heater includes the third fan with electric motor and impeller. Housing is divided into a number of sections.

EFFECT: reducing readiness time to required air flow heating temperature at decreasing dimensions of the item.

14 cl, 6 dwg