Invention Grant
- Patent Title: Clean air duct noise silencing
- Patent Title (中): 清洁空气管道噪声消音
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Application No.: US12349317Application Date: 2009-01-06
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Publication No.: US07938225B2Publication Date: 2011-05-10
- Inventor: Robert Cardno
- Applicant: Robert Cardno
- Applicant Address: US MI Southfield
- Assignee: DENSO International America, Inc.
- Current Assignee: DENSO International America, Inc.
- Current Assignee Address: US MI Southfield
- Agency: Harness, Dickey & Pierce, PLC
- Main IPC: F02M35/00
- IPC: F02M35/00

Abstract:
An air intake system for reducing air induction noise, which includes an air duct housing that has a lower shell and an upper shell, each having a first end and a second end and a plurality of tuning holes formed therein. The air intake system further includes an air duct that is connected to the air duct housing and includes a circumferential wall having an interior surface and an exterior surface. The circumferential wall defines an aperture between a first end and a second end. A venturi is formed between the first and second ends and restricts the amount of sound passing from the first end to the second end of the air duct. The circumferential wall has a predetermined thickness that enables sound to pass through the circumferential wall and into the air duct housing.
Public/Granted literature
- US20100170464A1 CLEAN AIR DUCT NOISE SILENCING Public/Granted day:2010-07-08
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