| 主权项 |
1. An air filter comprising:
a filter housing comprising an interior and a sealing surface; a filter element comprising an inflow surface and an axially opposing outflow surface, the inflow surface spaced apart in an axial direction across the filter element, the axial direction defined by an axis extending through the inflow and outflow surfaces, wherein flow-through direction of the filter element and insertion direction of the filter element into the filter housing are parallel to the axial direction; wherein the filter element is inserted into the interior of the filter housing in an insertion direction matching the axial direction; the filter element further comprising a filter medium extending between the inflow surface and the outflow surface in the axial direction; the filter element comprising a circumferentially extending seal arranged in the area of the inflow surface or in the area of the outflow surface, the circumferentially extending seal in the mounting position of the filter element interacting with and contacting against a sealing surface of the filter housing to separate an inlet of the air filter from an outlet of the air filter; a support device clamping the filter element transversely to the axial direction in the filter housing by a transverse clamping action at least in a first support area that is spaced in the insertion direction from the seal; the transverse clamping action resulting by an insertion movement of the filter element into the filter housing by an interaction of the filter element with inner sides of the filter housing; at least one guide ramp is integrally formed on an inner surface of a bottom of the filter housing, the at least one guide ramp projecting from the bottom into the interior of the housing and elongated parallel to the insertion direction on along an inner surface of the bottom of the housing, the at least one guide ramp adapted to guide the filter element during the insertion movement; wherein the at least one guide ramp comprises a top side facing the filter element; wherein the housing bottom includes:
a front lower projection projecting into the interior of the housing from the bottom, the front lower projection positioned in the housing bottom near the inflow surface of the filter element;a rear lower projection projecting into the interior of the housing from the bottom, the rear lower projection positioned in the housing bottom near the outflow surface of the filter element; wherein the top side first extends, viewed in the insertion direction, away from said inner surface of the bottom of the filter housing into the interior of the filter housing and in front of the front lower projection or rear lower projection descends back toward said inner surface of a bottom of the filter housing. |
