Anti-snow module and air filter including same
AssigneeMann+Hummel GmbH
InventorsRobert Zbiral, Herbert Schenk, Dagmar Ruder
Life of this patent
Estimating the term…
Abstract
An anti-snow module designed for installation into an air filter housing includes a support plate configured for support in the housing. A partition is provided for mounting into the interior of the housing of the air filter. A valve plate is configured to seals the housing of the air filter below a predetermined differential pressure existing between the interior of the housing of the air filter behind the valve plate and the exterior of the housing of the air filter and open when the differential pressure exceeds a predetermined differential pressure value. At least one guide rail is provided on which the valve plate is slideably supported by at least one guide sleeve provided on the valve plate.
Claims9
An anti-snow module for installation in a housing of an air filter, the anti-snow module comprising:
- a support plate configured and adapted to support said module in said housing of said air filter;
- a partition configured for mounting into an interior of said housing of said air filter;
- a valve plate having at least one guide sleeve, said valve plate configured to seal a secondary air inlet of said housing when a differential pressure between said housing interior at a downstream side of said valve plate and an exterior of said housing is below a predetermined value, said valve plate configured to open said secondary air inlet of said housing when said differential pressure exceeds said predetermined value;
- and
- at least one guide rail slideably and supportively engaged with said at least one guide sleeve to slidably support said valve plate.
An air filter for a motor vehicle, comprising:
- a housing, wherein said housing includes
- a first inlet for primary intake of unfiltered air;
- a second inlet for secondary intake of unfiltered air;
- and
- guides;
- wherein said guides are adapted to receive an anti-snow module for closing said second inlet as a function of a differential pressure between an interior of said housing downstream of said second inlet and an exterior of said housing upstream of said second inlet;
- and
- wherein said guides are configured to alternatively receive a sealing plate in place of an anti-snow module for sealing said second inlet.
An air filter for a motor vehicle comprising:
- a housing with a first inlet for primary intake of unfiltered air;
- a second inlet for secondary intake of unfiltered air;
- and
- an anti-snow module;
- wherein said anti-snow module includes a valve plate configured to seal said second inlet of said housing when a differential pressure between a housing interior at a downstream side of said valve plate and an exterior of said housing is below a predetermined value, said valve plate configured to open said second inlet when said differential pressure exceeds said predetermined value;
- and
- wherein said anti-snow module includes at least one guide rail on which said valve plate is slideably supported by at least one guide sleeve provided on said valve plate.
Dependencies are inferred from the claim text.