Invention Grant
- Patent Title: Drone elimination muffler
- Patent Title (中): 无人消音消声器
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Application No.: US15094788Application Date: 2016-04-08
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Publication No.: US09587535B2Publication Date: 2017-03-07
- Inventor: Steve Williams , Kevin McClelland
- Applicant: K&N Engineering, Inc.
- Applicant Address: US CA Riverside
- Assignee: K&N Engineering, Inc.
- Current Assignee: K&N Engineering, Inc.
- Current Assignee Address: US CA Riverside
- Agency: Rutan & Tucker LLP
- Agent Hani Z. Sayed
- Main IPC: F01N1/02
- IPC: F01N1/02 ; F01N1/16 ; F01N1/06

Abstract:
An apparatus and method are provided for a drone elimination muffler to attenuate drone exhibited by engine exhaust systems. The drone elimination muffler comprises a hollow canister having a length and a diameter, and a tuned port comprising a first end connected to the canister and a second end connected to the exhaust system. The canister operates in concert with the tuned port as a dampener configured to substantially attenuate exhaust drone, or resonance, at one or more frequencies of engine operation. A valve is configured to switch the drone elimination muffler between a closed state in which the exhaust system operates without acoustic influence due to the drone elimination muffler, and an open state in which the drone elimination muffler directly influences the acoustic properties of the exhaust system.
Public/Granted literature
- US20160298510A1 DRONE ELIMINATION MUFFLER Public/Granted day:2016-10-13
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