DEVICE FOR CHECK OF FLAME PRESENCE Russian patent published in 2002 - IPC

FIELD: power engineering; automation of combustion processes in hot-water boilers. SUBSTANCE: proposed device includes bimetallic plate mechanically connected with guide, unit for transfer of mechanical action from bimetallic plate to contact unit through guide and adjustable stop for limiting motion of this unit proximity of contact unit; device is also provided with second adjustable stop fitted on guide; mechanical action transfer unit provides for control of degree of mechanical coupling of bimetallic plate with contact unit. EFFECT: reduction of reaction time both at lighting-up and going-out of flame of burner; enhanced operational stability. 2 cl, 3 dwg