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US 2013/0255203 A1Published application
Air filter with preseparator
AssigneeMann+Hummel GmbH
InventorsKarlheinz Muenkel, Marku Kolczyk, Stefan Becker, Michael Heim
Life of this patent
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Abstract
Air filter comprising a preseparator with an optimized intake geometry, wherein an outflow geometry of a preseparator is matched to an intake geometry of a filter element.
Claims20
Air filter for an internal combustion engine comprising
- air filter housing (100),
- a preseparator (120),
- wherein the air filter housing (100) has a receptacle (101) for a filter element and comprises an unfiltered gas chamber area,
- wherein the unfiltered gas chamber area (102) is delimited relative to the air filter by the air filter housing (100) and relative to the filter element to be inserted by a wall surface or intake surface at the unfiltered gas side,
- wherein the preseparator (120) has an air outflow configuration (121), wherein the air outflow configuration corresponds with an intake surface of the filter element to be inserted,
- wherein the preseparator (120) comprises a cyclone arrangement (130) with a plurality of individual cyclones (140) each having an outflow path (148), wherein the outflow paths (148) are distributed relative to and oriented toward the intake surface of the filter element to be inserted,
- wherein the receptacle (101) of the air filter housing (100) is designed to receive the filter element in the form of a multiple bellows filter with an outwardly positioned filter bellows and a filter bellows that is radially inwardly positioned thereto, wherein at least some of the individual cyclones (140) with their outflow paths (148) are oriented toward a line so as to correspond with an intake passage of the filter element to be inserted.
4 more elements
Air filter for an internal combustion engine comprising
- an air filter housing (100),
- a preseparator (120),
- wherein the air filter housing (100) has a receptacle (101) for a filter element and comprises an unfiltered gas chamber area,
- wherein the unfiltered gas chamber area (102) is delimited relative to the air filter by the air filter housing (100) and relative to the filter element to be inserted by a wall surface or intake surface at the unfiltered gas side,
- wherein the preseparator (120) has an air outflow configuration (121), wherein the air outflow configuration corresponds with an intake surface of the filter element to be inserted,
- wherein the preseparator (120) comprises a cyclone arrangement (130) with a plurality of individual cyclones (140) each having an outflow path (148), wherein the outflow paths (148) are distributed relative to and oriented toward the intake surface of the filter element to be inserted,
- wherein at least some of the individual cyclones (140) with their outflow paths are oriented tangentially along an outer circumference of a filter element to be inserted.
4 more elements
Air filter for an internal combustion engine comprising
- an air filter housing (100),
- a preseparator (120),
- wherein the air filter housing (100) has a receptacle (101) for a filter element and comprises an unfiltered gas chamber area,
- wherein the unfiltered gas chamber area (102) is delimited relative to the air filter by the air filter housing (100) and relative to the filter element to be inserted by a wall surface or intake surface at the unfiltered gas side,
- wherein the preseparator (120) has an air outflow configuration (121), wherein the air outflow configuration corresponds with an intake surface of the filter element to be inserted,
- wherein the preseparator (120) comprises a cyclone arrangement (130) with a plurality of individual cyclones (140) each having an outflow path (148), wherein the outflow paths (148) are distributed relative to and oriented toward an intake surface of the filter element to be inserted,
- wherein the receptacle (101) of the filter housing (100) is designed to receive a compact filter element in the form of coiled fluted filter with a substantially axial intake surface, wherein the plurality of individual cyclones (140) with their outflow paths (148) are distributed relative to and oriented toward an intake surface of the fluted filter to be inserted and wherein between the plurality of individual cyclones (140) with their outflow paths (148) and the intake surface of the fluted filter to be inserted a diffusion device (150) is arranged that is designed to generate a homogenization of the pressure distribution across the intake surface.
4 more elements
(canceled)
Dependencies are inferred from the claim text.