OPTICAL PYROMETRIC TRANSDUCER OBJECTIVE-LENS AND ITS PROTECTION AGAINST SOOT AND OVERHEATING

摘要

FIELD: instrumentation.SUBSTANCE: objective-lens comprises optical window composed of objective-lens sealed in barrel and blown by air from high-pressure compressor stages and coupled by flange to turbine with radiator. Inlet optical window is arranged flush with barrel edges. Deflector is arranged coaxially at said barrel to make a circular gap along inlet optical window outer surface and provided with flange and perforations made in circle. Radiator is located in sealed well to separate it.EFFECT: higher reliability.4 cl, 3 dwg