Depth filter, e.g. oil filter, for internal combustion engine of motor vehicle, has alternating filter layers provided with openings and continuous function layers, where filter layers lie on top of each other in stack direction

摘要

A filter has a set of filter layers (2, 3) made of a laminar filter material (4) such as paper, and lying on the top of each other in a stack direction (1). The individual filter layers are provided with openings (5). The alternating filter layers with the openings and continuous function layers lie on top of each other in the stack direction, where the function layers are designed as closed filter layers or drainage layers. The openings are alternatively and uniformly displaced against each other.