Filter system
AssigneeFilterwerk Mann & Hummel GmbH
InventorsVolker Greif, Edvard Kopec, Manfred Winter
Life of this patent
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Abstract
A filter system for the air intake of an internal combustion engine, in which an oval filter element is disposed in a housing, and a pre-separator is also provided which includes one or more cyclones.
Claims10
A filter system for the air intake of an internal combustion engine, said filter system comprising a housing, a pre-separator, a main filter element disposed in the housing, a pivotable cover attached to the housing by a hinge for closing the housing, and a safety filter element disposed inside said main filter element for preventing dust from entering a clean air space during a replacement of the main filter element, wherein the safety filter element is a fleece filter element, and wherein both the housing and the filter element have a substantially oval contour which is adapted to the contour of a covering for the internal combustion engine.
A filter element for installation in a housing of an air filter system of an internal combustion engine;
- said filter element comprising an oval supporting body, a pleated paper main filter supported by said supporting body;
- a filter fleece also supported by said supporting body, the filter fleece being disposed inside said main filter for preventing dust from entering a clean air space during a replacement of the main filter;
- a first end plate sealingly connected to the main filter, said first end plate having a gasket receptacle thereon, said gasket receptacle comprising two radially outwardly extending branches, a profiled gasket member disposed between said radially outwardly extending branches such that when the filter element is installed in a housing, the gasket member produces a radial seal between the filter element and the housing, and a second end plate sealingly connected to the main filter opposite from said first end plate, said second end plate being closed and having a contour which receives a compression spring.
Dependencies are inferred from the claim text.