Patent ID: 9670808
Date: 2017-06-06
CPC Classifications: B01D,B04B,C04B,F01M

Claim:
1. A separator for separating liquid droplets from an aerosol, in particular an oil separator for the crankcase ventilation gases of a reciprocating internal combustion engine, comprising a rotor arranged in a stationary housing and capable of being driven in rotation about a rotor axis, said rotor comprising a plurality of disks which are concentric with the rotor axis and are arranged parallel to one another, said disks together forming a stack of disks capable of being driven in rotation about the rotor axis and being arranged at in particular equal distances relative to one another in a direction of the rotor axis, a gas flow path between a dirty gas inlet of the separator for a gas entraining liquid droplets to be separated and a clean gas outlet of the separator for the gas cleaned, at least to a large extent, of the liquid droplets, a liquid outlet for discharging separated liquid from the housing, and an annular space between the circumference of the rotor and a circumferential wall of the housing enclosing the rotor, wherein the liquid outlet is in communication with the annular space and disks adjacent to each other in each case form therebetween an interspace that is concentric with the rotor axis and through which the gas is to flow, the radially outer area of said interspace opening into the annular space, and wherein one of the dirty gas inlet and the clean gas outlet is in communication with the annular space and the other one of the dirty gas inlet and the clean gas outlet is in communication with radially inner areas of the interspaces, wherein the disks have flat disk bodies which extend in planes perpendicular to the rotor axis, wherein in each of at least a plurality of said interspaces there are provided a plurality of channels adjacent to one another and allowing passage therethrough of the gas to be cleaned, wherein each channel extends at least substantially from a first radial area to a second radial area of the interspace, with the two areas being arranged at a radial distance from each other, wherein each channel is curved when viewed in a direction of the rotor axis, and wherein between channel wall surfaces bounding the channel width on either side are provided, the radially outer one of said channel wall surfaces forming an impaction an separation surface for the liquid droplets entrained by the gas to be cleaned.