Patents Assigned to Westfalia Separator AG
  • Patent number: 7510519
    Abstract: A solid bowl screw centrifuge including: a drum having a solids discharge at a conical end and at least one discharge opening at an end opposite the conical end, the at least one discharge opening arranged with an axial drum lid; a screw rotatable at a different speed relative to the drum; a centripetal chamber section connected behind the drum lid with the at least one discharge opening; a centripetal pump arranged to discharge a liquid phase from the solid bowl screw centrifuge; and an adjustable throttling device connected in front of the centripetal pump in the centripetal chamber section, the adjustable throttling device being assigned to the at least one discharge opening.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: March 31, 2009
    Assignee: Westfalia Separator AG
    Inventors: Michael Reichenbach, Michael Müller
  • Patent number: 7438678
    Abstract: A full-jacket helical conveyor centrifuge including a rotatably disposed drum and a drive device for the drum. The drive device for the drum includes at least one electromechanical direct drive having secondary elements arranged on the outer periphery of the drum or on the outer periphery of a part non-rotatably connected with the drum. Primary elements are arranged radially outside the secondary elements at a distance from the secondary elements and without contact. A propulsion force is generated by an electromagnetic field of travelling waves.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: October 21, 2008
    Assignee: Westfalia Separator AG
    Inventor: Hans-Joachim Beyer
  • Patent number: 7419463
    Abstract: A centrifuge includes at least two centrifugal drums, each drum including a disc stack and each drum being rotatable about first and second axes of rotation. The first axis of rotation extends through a center of gravity of and is within each drum. The second axis of rotation is situated outside each drum.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: September 2, 2008
    Assignee: Westfalia Separator AG
    Inventors: Poul-Erik Aagaard, Klaus-Dieter Bröker
  • Patent number: 7416523
    Abstract: A separator for the clarification or separation of liquids includes a double-cone drum having a metal conical drum top part and a metal conical drum bottom part. The drum top part and the drum bottom part are made as metal plates and the double-cone drum has a largest inside diameter greater than 1000 mm. A disk stack including a stack of conical separating disks is arranged in the double-cone drum. The drum bottom part has at least two drum shell sections with different outer angles of taper with respect to an axis of rotation of the double-cone drum.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: August 26, 2008
    Assignee: Westfalia Separator AG
    Inventors: Wilfried Mackel, Angelika Voltmann
  • Patent number: 7410457
    Abstract: A separator including a vertical axis of rotation, a drum having solids discharge openings and a conical centrifugal space, and a disc stack located in the conical centrifugal space. Also included is a plurality of conical discs super-imposed on one another and having disc bores forming at least one rising channel in the disc stack. Further included is a drum, a distributor and a lower base section which expands radially, and on which lower base section are one or more distributor channels.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: August 12, 2008
    Assignee: Westfalia Separator AG
    Inventor: Holger Heinrich
  • Patent number: 7354388
    Abstract: A separator including a rotatable drum having a drum top part, a vertical axis of rotation and a disk stack arranged therein. Also included is a piston slide for opening and closing solids discharge openings in the drum. A radial gap is formed between the drum top part and the piston slide in an open condition of the piston slide. Radially successive annular chambers are located in the piston slide and in the drum top part and are mutually connected by a bottleneck.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: April 8, 2008
    Assignee: Westfalia Separator AG
    Inventors: Wilfried Mackel, Andreas Schulz
  • Patent number: 7331919
    Abstract: A centrifugal drum for a separator having a vertical axis of rotation, including a drum bottom part and a drum cover fastened to the drum bottom part by a locking ring. Also included is a centering ring arranged between the drum bottom part and the drum cover such that while the centering ring is being pretensioned, it sealingly and centeringly braces the drum bottom part and the drum cover relative to one another.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: February 19, 2008
    Assignee: Westfalia Separator AG
    Inventor: Willi Niemerg
  • Patent number: 7329310
    Abstract: The invention relates to a filter module having a module housing and at least one filter element. The filter module has at least one inlet opening, at least one filtrate outlet and a module housing having at least one joint line.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: February 12, 2008
    Assignee: Westfalia Separator AG
    Inventors: Hans Olapinski, Dieter Bläse, Hans-Peter Feuerpeil
  • Patent number: 7326169
    Abstract: A full-jacket helix-type centrifuge including a drum and at least one weir having a port. A throttle disk is assigned to the port. At least one nozzle rotates with the drum and is assigned to an outlet for discharging clarified liquid from the drum.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: February 5, 2008
    Assignee: Westfalia Separator AG
    Inventors: Paul Brüning, Jürgen Hermeler, Helmut Figgener
  • Patent number: 7311654
    Abstract: A solid bowl helical conveyor centrifuge, including a rotatable drum having a horizontally-oriented axis of rotation and a rotatable screw arranged in the rotatable drum. Also included is at least one discharge opening oriented at an angle with respect to the horizontally-oriented axis of rotation. The at least one discharge opening is configured to discharge solids from the rotatable drum. An adjusting device is assigned to the at least one discharge opening and by which adjusting device an outlet cross-section of the at least one discharge opening is changeable. The adjusting device includes a movable adjusting disk arranged in the rotatable drum as an extension of the rotatable screw, and which movable adjusting disk is non-rotatably connected with one or more of the following: a) the rotatable drum, b) the rotatable screw, and c) a screw body. At least one connecting rod is fastened to the movable adjusting disk.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: December 25, 2007
    Assignee: Westfalia Separator AG
    Inventor: Wilhelm Ostkamp
  • Publication number: 20070270298
    Abstract: A self-dumping separator having a vertical axis of rotation and having a drum (1) into which a disc stack (3) made up of a plurality of conical discs (4) is inserted, a centrifuge feed being introducible via an inlet pipe (6) and a distributor (7) into the centrifuge space (2), which is enclosed by the drum (1), at least two or more fins (17) being arranged in an annular solids space (15) that is arranged radially outside the disc stack (3), the clearance between the fins (17) and the inner wall of the drum (1) being at least three millimeters.
    Type: Application
    Filed: March 7, 2007
    Publication date: November 22, 2007
    Applicant: WESTFALIA SEPARATOR AG
    Inventors: Wolfgang Wieking, Siegfried Klapper, Bernhard Heymann
  • Patent number: 7204795
    Abstract: The invention relates to a deviation ring for paste comprising an annular rebound wall (2) for a self-distributing centrifuge (1). The invention also relates to a corresponding self-distributing centrifuge (1). In the deviation ring, the angle of incidence ? of the tangents of the rebound wall (2) of the deviation ring (4), opposite the distribution slit (3) of the centrifuge (1), in relation to the horizontal, is between 3 and 60° over the entire opening width of the distribution slit (3).
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: April 17, 2007
    Assignee: Westfalia Separator AG
    Inventors: Ernst-Ulrich Himmen, Markus Longerich, Jürgen Scholz, Detlef Freyer, Ulrich Esser
  • Publication number: 20070066476
    Abstract: The present disclosure relates to a method of increasing the separation effect of a centrifuge having separator discs in a disc stack. Also, the present disclosure relates to a separator disc and a centrifuge.
    Type: Application
    Filed: July 8, 2004
    Publication date: March 22, 2007
    Applicant: WESTFALIA SEPARATOR AG
    Inventors: Detlef Ullmann, Knud Schoneberg
  • Patent number: 7131370
    Abstract: The invention relates to a centrifugal separating device and method for clarifying must during wine production, especially with a separator (7). Gas and/or gelatine and/or other additives are added to the must that is clarified in the separating device after the must has passed through the separating device and before it passes through the constant pressure valve (13) of the separating device, as the must is discharged (9), in order to obtain flotation.
    Type: Grant
    Filed: December 30, 2000
    Date of Patent: November 7, 2006
    Assignee: Westfalia Separator AG
    Inventors: Frank Schauz, Ulrich Schmid
  • Patent number: 7109363
    Abstract: A method for the production of fatty acid esters of primary and/or secondary alcohols from raw, unpurified oils or fats containing free fatty acids and slimy substances or from waste oils loaded with free fatty acids from the food industry. Acidic catalytic esterification is performed on the free fatty acids along with extensive deactivation of the slimy substances present with respect to the disadvantageous emulsion-forming property thereof, whereby a water-free primary and/or secondary alcohol and a highly acidic hygroscopic catalyst are added to the starting substance in the form of crude oil or fat or waste oil, the reaction product is rinsed with glycol from a prior alkaline transesterification, whereupon alkaline transesterification occurs for the unmodified remaining glyceridically bound fatty acids in the reaction product of the acidic-catalytic esterification process.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: September 19, 2006
    Assignee: Westfalia Separator AG
    Inventors: Karlheinz Brunner, Rainer Frische, Rainer Ricker
  • Patent number: 7090634
    Abstract: A driving system for a separator having a centrifugal drum with a vertical axis of rotation. The driving system includes a vertically aligned driving spindle configured to accommodate a centrifugal drum. The driving spindle is arranged by a neck bearing and a footstep bearing in an opening of a drive housing. The neck bearing is supported in an axially rigid and radially resilient manner on the machine housing. The neck bearing is constructed as an angular ball bearing and supports the centrifugal drum on a spherical-shaped supporting surface of the machine housing.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 15, 2006
    Assignee: Westfalia Separator AG
    Inventors: Wilfried Mackel, Helga Tietz
  • Patent number: 7083565
    Abstract: The present invention is a solid-bowl screw centrifuge that includes a centrifugal drum. The drum has a drum casing and a screw with a screw body that is surrounded by a screw blade. The screw blade forms at least one screw spiral with a conveying path for transporting material to be centrifuged. The centrifuge also includes an inlet into the centrifugal drum, at least one solid matter discharge and at least one liquid outlet. The centrifuge includes a drum chamber that is axially closed by a drum cover having essentially a conical shape. Further included is a disk stack having at least one conical disk, and the disk stack is mounted to the drum cover directly upstream of the liquid outlet. At least a portion of the disk stack is arranged in a cylindrical section of the drum chamber that has an essentially constant diameter. A screw disk is arranged on the screw body between the drum cover and a first screw spiral.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: August 1, 2006
    Assignee: Westfalia Separator AG
    Inventors: Jürgen Hermeler, Paul Brüning, Ludger Horstkötter
  • Patent number: 7074173
    Abstract: A centrifuge including a centrifugal drum that includes a centrifugal chamber and a centrifugal chamber bottom part displaceable relative to the centrifugal drum. Also included is a piston slide axially displaceably arranged to be in and/or on the centrifugal drum. At least one seal is arranged in a surrounding groove on an outer circumference of the centrifugal drum bottom part and further arranged between the piston slide and the outer circumference of the centrifugal chamber bottom part to seal off a gap between the piston slide and the centrifugal chamber bottom part. The groove is configured to be constructed at least in sections and axially open toward the centrifugal chamber.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: July 11, 2006
    Assignee: Westfalia Separator AG
    Inventors: Werner Kohlstette, Willi Niemerg, Thomas Kleimann
  • Patent number: 7060019
    Abstract: The present invention relates to solid bowl screw centrifuge comprising a centrifuging chamber having a rotatable screw with a center axis and a rotatable drum surrounding the centrifuging chamber. Also included is an axially extending inflow tube for guiding material to be centrifuged into a distributor. The distributor is oriented in a substantially perpendicular manner with respect to the center axis of the screw and configured for introducing the material to be centrifuged into the centrifuging chamber. The distributor further includes at least one wall having a surface structure that includes projections configured such that a substantial portion of the material to be centrifuged flowing through the distributor must flow around at least one of the projections.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: June 13, 2006
    Assignee: Westfalia Separator AG
    Inventors: Jürgen Hermeler, Paul Brüning, Ludger Horstkötter
  • Patent number: 7056272
    Abstract: The present disclosure relates to a centrifuge having a vertical axis of rotation, and including a centrifugal drum having a feeding tube for material to be centrifuged, outlet nozzles, and an emergency off system connected in front of the centrifugal drum. The emergency off system includes a feeding system feeding particles into the centrifugal drum. The present disclosure also relates to a method of implementing an emergency off system of the centrifuge. The method steps include: providing an emergency off signal; feeding the particles into the centrifugal drum in response to the emergency off signal; and, wherein the particles plug the outlet nozzles.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: June 6, 2006
    Assignee: Westfalia Separator AG
    Inventor: Reinhard Moss