Patent ID: 8747503

Claim:
A gas cleaning separator for separating a flowable mixture of substances of different densities, the separator comprising: a housing defining an inner space; and a rotor assembly for imparting a rotary motion onto said mixture of substances, the rotor assembly being located in said inner space and rotatable about an axis relative to the housing, wherein the rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, the separator further comprising an electric motor for rotating said rotor assembly, and a fluid passageway through the electric motor for receiving, in use, a substance separated from said mixture of substances, said fluid passageway through the electric motor being defined, at least in part, by a rotor and a stator of the electric motor, wherein electrical leads located in said fluid passageway are sealed in an insulating material.