F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
F01N1/00—Silencing apparatus characterised by method of silencing
F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
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Engineering & Computer Science
(AREA)
Chemical & Material Sciences
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Combustion & Propulsion
(AREA)
Mechanical Engineering
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General Engineering & Computer Science
(AREA)
Developing Agents For Electrophotography
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)