EXHAUST SILENCER Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: silencer has case, whose inlet part provided with an inlet port and outlet part with longitudinal baffle and outlet port, profiled guide baffles arranged streamwise and shielded insert-heater made in block with the inlet port of the case. The profiled guide baffles and the case form passages outlets of which are made of nozzles. Space of the insert-heater is coupled with alternative pressure space of an air operated motor. The inlet part of the case is divergent. The nozzles are made for control of outlet section areas. End parts of the profiled guide baffles are movable. EFFECT: enhanced silencing. 4 cl, 2 dwg