Acoustic damper with barrier member configured to dampen acoustic energy propogating upstream in gas flow
AssigneeHoneywell International Inc.
InventorsBhushan Singh Gautam, Gladys Gaude
Life of this patent
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Abstract
An acoustic damper includes a housing with an inlet aperture and an outlet aperture. The housing is configured to receive a gas flow that enters via the inlet aperture and that exits via the outlet aperture. The acoustic damper also includes a barrier member that is disposed within the housing. The barrier member is configured to be disposed within the gas flow and to dampen acoustic energy that propagates in an upstream direction generally from the outlet aperture toward the inlet aperture. The barrier member includes an outer structure that defines an interior volume of the barrier member. The interior volume is oriented toward the outlet aperture.
Claims20
An acoustic damper comprising:
- a housing that includes an inlet aperture and an outlet aperture, the housing configured to receive a gas flow that enters via the inlet aperture and that exits via the outlet aperture;
- and
- a barrier member that is disposed within the housing, the barrier member configured to be disposed within the gas flow and dampen acoustic energy that propagates in an upstream direction generally from the outlet aperture toward the inlet aperture, the barrier member including an outer structure that defines an interior volume of the barrier member, the interior volume oriented toward the outlet aperture.
An acoustic damper comprising:
- a housing that includes an inlet aperture and an outlet aperture, the housing configured to receive a gas flow that enters via the inlet aperture and that exits via the outlet aperture;
- a barrier member that is disposed within the housing and configured to be disposed within the gas flow, the barrier member including an upstream end, a downstream end, and an axis that extends between the upstream end and the downstream end, the barrier member having an outer width that is measured perpendicular to the axis, the outer width gradually increasing from the upstream end to the downstream end along the axis, the barrier member defining an interior volume, the downstream end including an opening into the interior volume;
- and
- at least one resonator that is supported by the barrier member within the interior volume.
A vehicle engine system comprising:
- a turbocharger with an air inlet to a compressor;
- and
- an acoustic damper that is operably attached to the air inlet of the turbocharger, the acoustic damper including:
- a housing with an upstream wall with an inlet aperture and a downstream wall with an outlet aperture, the outlet aperture being fluidly connected to the air inlet of the turbocharger, the housing including an outer radial wall that extends between the upstream wall and the downstream wall, the housing having a substantially straight axis that extends between the inlet aperture and the downstream aperture, the housing configured to receive a gas flow that enters via the inlet aperture and that exits via the outlet aperture;
- a plurality of outer resonators that are attached to the upstream wall, the plurality of outer resonators being cylindrical and hollow and being substantially coaxial with the axis, the plurality of outer resonators having different lengths;
- a barrier member that is disposed within the housing, the barrier member including an outer shell that defines an upstream end, a downstream end, and an interior volume of the barrier member, the barrier member being substantially symmetric about the axis, the outer shell having an outer width measured perpendicular to the axis, at least a portion of the outer shell having the outer width gradually increasing in a downstream direction from the upstream end to the downstream end, the barrier member oriented within the housing with the interior volume oriented toward the outlet aperture;
- and
- at least one resonator disposed within the interior volume of the barrier member.
Dependencies are inferred from the claim text.