High frequency silencer for an air induction system
First Claim
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1. A filter assembly, comprising:
- a filter media sized for positioning within an air induction system, the filter media possessing a first side and a second side substantially opposite the first side; and
a layer of sound absorbing foam positioned adjacent one of the first side of the filter media and the second side of the filter media, the sound absorbing foam including a plurality of perforations therein, the plurality of perforations permitting air to flow through the filter media and the layer of sound absorbing foam, the plurality of perforations covering approximately 35 to 50 percent of a face of the layer of sound absorbing foam.
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Abstract
A filter assembly including a filter media sized for positioning within an air induction system, the filter media possessing a first side and a second side substantially opposite the first side. The filter assembly includes a layer of sound absorbing foam positioned adjacent one of the first side of the filter media and the second side of the filter media, the sound absorbing foam including a plurality of perforations therein, the plurality of perforations permitting air to flow through the filter media and the layer of sound absorbing foam.
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Citations
21 Claims
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1. A filter assembly, comprising:
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a filter media sized for positioning within an air induction system, the filter media possessing a first side and a second side substantially opposite the first side; and a layer of sound absorbing foam positioned adjacent one of the first side of the filter media and the second side of the filter media, the sound absorbing foam including a plurality of perforations therein, the plurality of perforations permitting air to flow through the filter media and the layer of sound absorbing foam, the plurality of perforations covering approximately 35 to 50 percent of a face of the layer of sound absorbing foam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A filter assembly, comprising:
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a filter media sized for positioning within an air induction system, the filter media possessing a first side and a second side substantially opposite the first side; and a plurality of strips of sound absorbing foam positioned adjacent one of the first side of the filter media and the second side of the filter media, the plurality of strips spaced apart from one another, thereby permitting air to flow through the filter media and past the layer of sound absorbing foam. - View Dependent Claims (12)
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13. An air induction system for an internal combustion engine, the system comprising:
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a filter assembly having a filter media and a sound absorbing foam, the filter media including a clean side and a dirty side substantially opposite the clean side, the dirty side configured to receive unfiltered air and the clean side configured to output filtered air, the sound absorbing foam positioned adjacent one of the clean side of the filter media and the dirty side of the filter media; and a turbocharger configured to provide filtered air to the internal combustion engine, the turbocharger positioned downstream of the clean side of the filter media; wherein the sound absorbing foam includes a plurality of perforations therein, the plurality of perforations permitting air to flow through the filter media and the sound absorbing foam. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification