SPIRAL ICE SILENCER Russian patent published in 2020 - IPC F01N1/10

Abstract RU 2729222 C1

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry and motor-building industry. Noise silencer of internal combustion engine is made of sheet material, coiled in form of spiral with closed outer coil. Between turns, closed curvilinear space is formed. Noise-absorbing material is arranged between turns. Housing has connecting elements. Sheet surface has smooth area and area with extruded pins and ridges. Smooth surface of last coil is coiled with previous coil without formation of gap.

EFFECT: invention can be used in exhaust paths of internal combustion engines.

3 cl, 2 dwg

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RU 2 729 222 C1

Authors

Frantsev Vladimir Fedorovich

Dates

2020-08-05—Published

2020-03-03—Filed