- Patent Title: Acoustic attenuator for damping pressure vibrations in an exhaust system of an engine, an acoustic attenuation system using the attenuators, and method of damping pressure vibrations in an exhaust system of an engine
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Application No.: US15575216Application Date: 2015-05-25
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Publication No.: US10781732B2Publication Date: 2020-09-22
- Inventor: Esa Nousiainen , Jukka Tanttari
- Applicant: WÄRTSILÄ FINLAND OY
- Applicant Address: FI Vaasa
- Assignee: WÄRTSILÄ FINLAND OY
- Current Assignee: WÄRTSILÄ FINLAND OY
- Current Assignee Address: FI Vaasa
- Agency: Buchanan Ingersoll & Rooney PC
- International Application: PCT/FI2015/050359 WO 20150525
- International Announcement: WO2016/189187 WO 20161201
- Main IPC: F01N1/02
- IPC: F01N1/02 ; F01N13/02
Abstract:
An acoustic attenuator for damping pressure vibrations in an exhaust system of an engine, the acoustic attenuator having a body which is provided with a gas inlet and a gas outlet at opposite ends thereof, and a gas passage duct arranged between the inlet and the outlet inside the body, where in the body encloses a first resonator chamber and a second resonator chamber. The body is provided with a common inlet communicating with the first and the second resonator chambers, and the resonator chambers are arranged to extend from the common inlet towards the opposite ends of the body.
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