Abstract: A centrifugal particle separator includes a first vane assembly and a second vane assembly. The first vane assembly includes a centrally positioned hub, a collar encircling the hub and a plurality of first vanes. Each first vane can have an inner end connected to the hub and an outer end connected to the collar, wherein a trailing edge of at least one of the plurality of first vanes can extend past an edge of the collar. The second vane assembly includes a centrally positioned hub, a collar encircling the hub and a plurality of second vanes circumferentially disposed about the hub. Each second vane can have an inner end connected to the hub and an outer end connected to the collar, wherein a leading edge of at least one of the plurality of second vanes can extend past an edge of the collar. When the first and second vane assemblies are secured together, at least one of the plurality of first vanes protrudes into the second vane assembly.

Abstract: The present invention relates to a fan guard which utilizes an associated electric motor body for increased support and rigidity. The fan guard includes an inner housing member which mounts to an electric motor body. A plurality of circumferentially spaced reinforcing ribs is each connected at an inner end to the inner housing member. Each reinforcing rib extends radially outward therefrom. A plurality of spaced fan guard ribs is connected at an inner end to the inner housing member and extends radially outward therefrom. A rim extends circumferentially around the plurality of fan guard ribs and is connected to an outer end of each of the fan guard ribs.