Device for separating a gas-liquid mixture, in particular during ventilation of a crankcase of an internal combustion engine

Abstract

The invention relates to a device for separating a gas-liquid mixture, wherein the liquid part is in the form of small particles, in particular during ventilation of a piston housing of an internal combustion engine, by separating and coagulating the liquid particles on a separation surface. The aim of the invention is to produce a device which has a compact structure, is easy to construct and has the highest possible degree of separation. As a result, when a cyclone is used as an individual separation device, the inner wall surface thereof (4), along which a rotational flow is produced for separating the liquid, must be provided with a plurality of narrow flow chicanes that are in the form of a thin, fine-pored knitted or non-woven fibre (5). A particularly good degree of separation is achieved in a separation device in which a prefractionator and a postfractionator (6, 7) are combined together, one of said separators being a cyclone and the other an impactor. The separation surfaces used to separate the liquid inside at least one of the two separators can be provided at least partially with a plurality of narrow flow chicanes which are in the form of a thin, fine-pored knitted or non-woven fibre (5).

Dependencies are inferred from the claim text.