| 摘要 |
FIELD: power engineering. ^ SUBSTANCE: device relates to power engineering and may be used in industry, agriculture and domestic electrical appliances to heat surfaces. Device to reduce scattering of heat energy into environment comprises surface for heating, gas burner protruding above surface, for instance, of cooker, and screen with reflecting inner surface concentrically arranged around gas burner with the possibility to supply air and form gas and air mixture. Screen is arranged in the form of diffuser with edge of its expansion towards heating surface, and at the side of narrowing edge there are holes arranged for air supply with a certain pitch along the length of the latter. ^ EFFECT: simplified design of device and technology of manufacturing, reduced amount of time for heating of surface, reduce consumption of gas and increased safety of device operation. ^ 3 cl, 1 dwg |
