F01N 1/22

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Description

Class  F01N : GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES


Subclass 1/22: Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
10100793 Intake sound reduction device for internal combustion engineOct 21, 16Oct 16, 18Mahle Filter Systems Japan Corporation
7905321 Inserts for engine exhaust systemsAug 28, 09Mar 15, 11Not available
7819221 Lightweight acoustic damping treatmentSep 27, 05Oct 26, 10The United States of America as represented by the Secretary of the Air Force

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