Knecht Filterwerke Gmbh

Albrecht Ostermann

Ditrich Lenzen

Wolfgang Reimann

Harald Faas

Hans Weik

An exhaust gas separator for an internal combustion engine comprises an elongate housing (10) having an inlet (11) and an outlet (12), and annular disks (13) disposed within said housing between said inlet and outlet. Each disk is provided on both side surfaces with at least one open flow channel (14) which extends in the form of a spiral between the external periphery of the disk and its interior to provide communication between the exterior of the disk and its interior opening (19). The annular disks are arranged in a series and bear axially one against the other whereby the abutting side surfaces of adjacent disks serve to close the flow channels in said side surfaces. The spiral form of one of the flow channels in the abutting surfaces extending in the opposite sense to the spiral form in the other of said abutting surfaces whereby said flow channels in said abutting surfaces intersect each other at numerous positions (20). The fluid flowing in one channel can enter the adjacent channel of the next disk thereby producing numerous eddies in the fluid and the fluid in effect is subjected to contractions and increases in the flow cross-section.

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Ohringen, Germany

Albrecht Ostermann