Air filter housing and an air filter element
AssigneeVolvo Truck Corporation
InventorsHans Rönnings, Carl Löwstedt, Mikael Karlsson, Sophie Girolami
Life of this patent
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Abstract
An air filter housing has an inner housing space adapted to receive an air filter element. The air filter housing includes a first housing end and a second housing end located axially opposite the first housing end in relation to the inner housing space, and an outlet pipe extending from the second housing end axially into the inner housing space. The outlet pipe has a center axis and an opening configured to receive clean air from the inner housing space, wherein at least an axial portion of the outlet pipe has a cross-sectional area along a geometrical plane perpendicular to the centre axis which is tapering.
Claims19
An air filter housing having an inner housing space adapted to receive an air filter element, the air filter housing comprising a first housing end and a second housing end located axially opposite the first housing end in relation to the inner housing space, and an outlet pipe extending from the second housing end axially into the inner housing space, the outlet pipe having a centre axis and an opening configured to receive clean air from the inner housing space, wherein at least an axial portion of the outlet pipe has a non-circular, tapering cross-sectional area measured in a plane perpendicular to the centre axis of the outlet pipe, the cross-section being trapezoidal or truncated triangle shape.
An air filter element comprising a first end and a second end located opposite to the first end in relation to a longitudinal direction of the air filter element, the air filter element being configured for axial insertion into an air filter housing with the first end leading the axial insertion, wherein the air filter element comprises a first outlet located in the first end and being configured to communicate with a corresponding first housing outlet in the air filter housing, and a second outlet located in the second end and being configured to communicate with a corresponding second housing outlet in the air filter housing, wherein an axial portion of the second outlet has a non-circular, tapering cross sectional area measured in a plane perpendicular to a centre axis of the second outlet, and the cross-section is shaped as a trapezoid, or truncated triangle.
Dependencies are inferred from the claim text.