Patent ID: 8978697
Filing Date: 2015-03-17
Classification: B01D,F01L,Y10T

Abstract:
1. A filter element for a control valve of a camshaft adjuster, comprising: an annular filter fabric for extracting particles; and a retaining frame for fastening the filter fabric, the retaining frame being a gripping frame having a circumferential inner surface disposed radially outside of the annular filter fabric and configured for planar bracing of the annular filter fabric on a circumferential outer surface of the control valve, such that the annular filter fabric is clamped between the circumferential inner surface of the retaining frame and the circumferential outer surface of the control valve when the filter element is mounted on the control valve, the annular filter fabric and the gripping frame being separate elements such that a retaining function of the filter element is decoupled from a filter function of the filter element, the annular filter fabric extending continuously along the circumferential inner surface of the retaining frame such that the annular filter fabric forms an innermost surface of the filter element for contacting the control valve continuously along the circumferential outer surface of the control valve, the gripping frame including two ends connectable to attach the annular filter fabric and the gripping frame to the control valve, the annular filter fabric and the gripping frame being separate elements releasably connected to each other.