Scroll Patents (Class 55/459.3)
  • Patent number: 6258146
    Abstract: A flue gas inlet duct into a separator cyclone, the duct having two lateral faces one of which is referred to as the “extrados” face and the other of which is referred to as the “intrados” face, the intrados face terminating at the tip of the cyclone, the duct also having a top face and a bottom face, wherein at least one of the intrados face and the extrados face has sloping grooves extending downwards from the outlet of the furnace towards the cyclone separator.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: July 10, 2001
    Assignee: ABB Alstom Power Combustion
    Inventor: Jean-Claude Semedard
  • Patent number: 6238579
    Abstract: The present invention provides for discharge (exit) ports for exit fluid flow disposed at or adjacent to one another on one end of a vortex separating body; an inlet port(s) disposed at one end of a separating body having discharge (exit) ports for exit fluid flow disposed at or adjacent to one another at an opposite end of the separating body; increased separation efficiency; solid mass separated per unit energy expended; a body that is predominantly cylindrical in shape that can be made inexpensively from standard sizes of pipe or tubing; a device that is predominantly cylindrical in shape so that the separation (vortex) length of the device can be changed simply by installing or removing sections of pipe or tubing; a device which promotes smooth rotational flow within the vortex region, therefore affecting an efficient separation of particles carried by the transporting fluid therein and reducing the pressure and/or energy required to move the fluid through the device; a device with entrance and especially
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: May 29, 2001
    Assignee: MBA Polymers, Inc.
    Inventors: Blaine K. Paxton, Laurence E. Allen, Larry G. Heald
  • Patent number: 6190543
    Abstract: A cyclonic separator for separating fluids of differing densities comprises a first chamber having a vortex finder and a core member. The vane is arranged co-axial with and adjacent the internal surface of the vortex finder to increase the rotational velocity component of fluids passing through the vortex finder by translating the axial velocity component of the fluids into a rotational velocity component.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: February 20, 2001
    Assignee: Kvaerner Process Systems A.S.
    Inventor: Bjørn Christiansen