ICE NOISE-AND-SPARK KILLER Russian patent published in 2014 - IPC F01N1/00 F01N3/06 

FIELD: transport.

SUBSTANCE: proposed device comprises cylindrical case (1) with end front and rear covers (2) and (3), respectively. Said case (1) houses perforated cylindrical insert (4), aligned perforated inlet pipe (5) and outlet pipe (6), three crosswise webs (7), (8), (9), dividing said case into four chambers (10)-(13), adapter (14) and conical spreader (15). Basalt fibre (16) is arranged between case (1) and insert (4). Said webs (7), (8), (9) are perforated. Inlet pipe (5) is arranged in two chambers (10) and (11) while its perforation has five zones (17)-(21) and trapezoidal holes formed by tangential guise and round holes. Confuser adapter (14) is fitted inside outlet pipe (6) and connected with its inlet end by confuser larger base. Spreader (15) is arranged at inlet pipe (5) discharge end and directed there inside.

EFFECT: higher efficiency.

5 cl, 2 dwg