Patent ID: 6062392
Filing Date: 2000-05-16
Classification: B01D,G01N

Abstract:
A separation plate for separating particles from a fluid stream having a first surface and an opposing second surface, the first surface including:plural pairs of a nozzle and a virtual impactor, the nozzle having an inlet end and an outlet end and tapering from the inlet end to the outlet end, the virtual impactor comprising a pair of fin-shaped projections, each fin-shaped projection having a convex outer wall and an inner wall, the inner walls of the pair of fin-shaped projections facing each other and being spaced apart to define an upstream minor flow passage therebetween, the convex outer walls of the pair of fin-shaped projections cooperatively presenting a convex surface defining a virtual impact void therethrough, the virtual impact void defining an inlet end of the upstream minor flow passage, the convex surface facing the outlet end of each nozzle such that the nozzle and the upstream minor flow passage are generally aligned with each other.