Filter housing and an air filter system
AssigneeVolvo Truck Corporation
InventorsHans Rönnings, Carl Löwstedt, Mikael Karlsson, Sophie Girolami
Life of this patent
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Abstract
An air filter housing includes an inner housing space adapted to receive an air filter element. The air filter housing includes a first end and a second end located axially opposite the first end in relation to the inner housing space, and an outlet channel path extending from the inner housing space and out from the second end, the outlet channel path having a length X m, the length X m being adapted to stabilize a noise having a wavelength of Y m travelling through the outlet channel path towards the inner housing space, wherein the length X m is related to the wavelength Y m according to the following relationship: Y/16<X<Y/8.
Claims10
An air filter system comprising:
- an air filter housing having an inner housing space adapted to receive an air filter element, the air filter housing comprising a first end and a second end located axially opposite the first end in relation to the inner housing space, an outlet channel path extending from the inner housing space and out from the second end, the air filter element comprises a filter outlet, in use, forming at least a part of the outlet channel path, an internal pipe arranged to, in use, extend internally of the air filter element, and an outlet pipe extending from an outer surface of the second end of the air filter housing, such that, in use, the outlet channel path is extending from an inlet of the internal pipe, via the filter outlet, to an outlet of the outlet pipe, at least one end portion of the internal pipe has a wavy or sinusoidal shaped portion, wherein
- the outlet channel path has a length X m, the length X m being adapted to stabilize a noise having a wavelength of Y m travelling through the outlet channel path towards the inner housing space, wherein the length X m is related to the wavelength Y m according to the following relationship:
- Y/16<X<Y/8
- wherein the outlet channel path is configured to convey clean air to an auxiliary equipment, and
- wherein the noise traveling through the outlet channel path originates from such auxiliary equipment.
An air filter system comprising:
- an air filter housing having an inner housing space adapted to receive an air filter element, the air filter housing comprising a first end and a second end located axially opposite the first end in relation to the inner housing space, an outlet channel path extending from the inner housing space and out from the second end, the air filter element comprises a filter outlet, in use, forming at least a part of the outlet channel path, an internal pipe arranged to, in use, extend internally of the air filter element, and an outlet pipe extending from an outer surface of the second end of the air filter housing, such that, in use, the outlet channel path is extending from an inlet of the internal pipe, via the filter outlet, to an outlet of the outlet pipe, at least one end portion of the internal pipe has a wavy or sinusoidal shaped portion, wherein the outlet channel path has a length X m, the length X m being adapted to stabilize a noise having a wavelength of Y m travelling through the outlet channel path towards the inner housing space, wherein the outlet channel path is configured to convey clean air to an auxiliary equipment, and wherein the noise traveling through the outlet channel path originates from such auxiliary equipment.
Dependencies are inferred from the claim text.