Patents Assigned to Sulzer Pumpen AG
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Publication number: 20130315730Abstract: A pump for conveying a pump fluid, wherein the pump fluid provided at an inlet pressure at a low pressure side of the pump can be conveyed in the operating state to a high pressure side of the pump rotor by means of a pump rotor rotatably supported about an axis of rotation in a pump stator and wherein a rotor shaft is arranged with the pump rotor at it drive bearing formed as a shaft bearing, characterized in that a lubricating film which is formed from a lubricating fluid formed from the pump fluid can be formed on a drive side of the rotor shaft between the rotor shaft and a drive bearing in a lubricating ring gap, with a lubricant line being provided such that the lubricating fluid can be supplied to the lubricating ring gap between the rotor shaft and the drive bearing.Type: ApplicationFiled: May 22, 2013Publication date: November 28, 2013Applicant: Sulzer Pumpen AGInventors: Paul MEUTER, Thomas Welschinger
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Publication number: 20130315762Abstract: A sealing arrangement for placement between two components which have a planar contact surface, in particular two housing parts of a pump. The sealing arrangement has an elongate, flexible sealing element whose end region has a termination element thereon, which can carry out a sealing function. The sealing element and the termination element have an overlap region in the end region of the sealing element and thus form a first continuous sealing edge. The sealing edge is maintained also for a displacement of the end region of the sealing element in the direction of the start region within the overlap region. The termination element moreover has a curvature. The curvature and the sealing element are configured so that the sealing element contacts the termination element along the curvature in a pressure-free state.Type: ApplicationFiled: March 5, 2013Publication date: November 28, 2013Applicant: Sulzer Pumpen AGInventors: Paul Meuter, Thomas Welschinger
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Publication number: 20130315518Abstract: A bearing pad, including a pad body (11) and a tilting element (12), for a support body (2) of a bearing arrangement (3) for taking up an axial thrust, characterized in that the tilting element (12) is provided in an elongated recess (111) of the pad body (11) extending in a radial direction such that a contact body (121) of the tilting element (12) extending in the direction of the recess (111) projecting beyond a surface of the pad body (11) and the pad body (11) has a higher deformability than the tilting element (12).Type: ApplicationFiled: April 18, 2013Publication date: November 28, 2013Applicant: Sulzer Pumpen AGInventors: Simon Gassmann, Paul Meuter, Thomas Felix
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Publication number: 20130302160Abstract: The present invention relates to a sealing arrangement for a flow machine. The sealing arrangement of the present invention is applicable for sealing bearing arrangements of centrifugal pumps, mixers, blowers etc. The present invention is especially applicable in sealing a bearing assembly including two angular contact ball bearings used in back-to-back configuration. The present invention relates especially to a baffle arranged between the bearing and the bearing housing, the baffle leaving a gap between itself and the inner bearing ring for the oil to flow from the bearing to the oil channel, and from the oil channel via a groove back to the oil chamber.Type: ApplicationFiled: May 7, 2013Publication date: November 14, 2013Applicant: Sulzer Pumpen AGInventor: Heikki MANNINEN
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Patent number: 8512513Abstract: A method of and an apparatus for controlling the height of a material column in a vessel upstream of a pump, in which method material is conveyed into an upper portion of the vessel, electrical signals are provided on the basis of the presence of material at predetermined measuring levels of the vessel by using a first sensor set disposed at a first measuring level at the upper portion of the vessel and a second sensor set disposed at a second measuring level at the lower portion of the vessel, and material is extracted at a controlled flow speed from a lower portion of the vessel by the pump, wherein the provided electrical signals are used to infer weighting factors of measuring level presence functions, and the flow speed is controlled on the basis of the weighting factors of the measuring level presence functions.Type: GrantFiled: July 25, 2008Date of Patent: August 20, 2013Assignee: Sulzer Pumpen AGInventor: Kimmo Leinonen
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Patent number: 8444370Abstract: A rotary wheel for radial pumps includes an intermediate wall at which one or more vanes are provided on both sides. Passage openings are formed in the intermediate wall in order to distribute a desired pump flow onto the vanes on both sides of the intermediate wall.Type: GrantFiled: July 5, 2004Date of Patent: May 21, 2013Assignee: Sulzer Pumpen AGInventor: Johann Gülich
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Patent number: 8409402Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.Type: GrantFiled: February 2, 2012Date of Patent: April 2, 2013Assignee: Sulzer Pumpen AGInventor: Juha Ottelin
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Publication number: 20130062832Abstract: Disclosed is a slide ring seal, which is used, for example, for sealing a shaft space of a centrifugal pump in relation to a pumping space thereof and to centering the mechanical seal and/or fastening the seal to the casing of the centrifugal pump and a body part used for the attachment. A feature of the disclosed seal, including at least one rotary slide ring unit, a body part by means of which the seal is attached to the casing, and at least one either separate counter ring unit or a counter ring unit stationarily attached to the body part, is that the body part is provided with inclined fastening means by means of which the body part (40, 40?) is tightened to the casing both axially and radially.Type: ApplicationFiled: August 14, 2012Publication date: March 14, 2013Applicant: Sulzer Pumpen AGInventor: Heikki Manninen
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Publication number: 20130058774Abstract: A volute shaped pump casing for a centrifugal pump includes a chamber for housing at least one impeller rotatable around an axis of rotation and a volute shaped chamber which forms a flow channel and which contains a splitter rib for dividing the flow channel formed wherein in a section perpendicular to the axis of rotation a mean camber line is positioned equidistantly between an inner and outer surface of the splitter rib, where the thickness of the splitter rib is varied along the mean camber line and for the mean camber line unwrapped to a straight line there is a maximum in the thickness, s, of the splitter rib, wherein said maximum is positioned at a distance L from the leading edge of the splitter rib, and wherein the distance L is in the range between 1.4 times the maximum thickness s and 6 times the maximum thickness s.Type: ApplicationFiled: April 26, 2011Publication date: March 7, 2013Applicant: Sulzer Pumpen AGInventors: Patrick Flückiger, Arnaldo Rodrigues
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Publication number: 20130058767Abstract: The present invention relates to a centrifugal pump, a shaft sleeve and a stationary seal member for a static seal used in connection with a dynamic sealing of a centrifugal pump. The invention relates to a static seal the clearance of which may be adjusted while the pump is running. Especially the invention discusses the novel structure of such a static seal.Type: ApplicationFiled: November 5, 2012Publication date: March 7, 2013Applicant: Sulzer Pumpen AGInventor: Sulzer Pumpen AG
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Patent number: 8337152Abstract: The present invention relates to a centrifugal pump, a shaft sleeve and a stationary seal member for a static seal used in connection with a dynamic sealing of a centrifugal pump. The invention relates to a static seal the clearance of which may be adjusted while the pump is running. Especially the invention discusses the novel structure of such a static seal.Type: GrantFiled: November 4, 2008Date of Patent: December 25, 2012Assignee: Sulzer Pumpen AGInventors: Jorma Tapani Lehtonen, Heikki Manninen
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Patent number: 8272823Abstract: The present invention relates to a sealing arrangement for attaching a side plate often used with a pump volute of a centrifugal pump and an attachment screw used therewith. A characterizing feature of the sealing arrangement for attaching the side plate of a centrifugal pump, comprising at least a pump volute (10) and a side plate (130) with attachment screws (132) and flanges (164) of the screws (132) arranged in communication with the volute (10) or the cover of the casing, is that an annular seal (180) is arranged between the screw (132) and the volute or the cover of the casing.Type: GrantFiled: October 24, 2007Date of Patent: September 25, 2012Assignee: Sulzer Pumpen AGInventors: Jussi Ahlroth, Jorma Lehtonen
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Patent number: 8240673Abstract: The present invention relates to a new kind of a mechanical seal, a so called slide ring seal, which is used, for example, for sealing a shaft space of a centrifugal pump in relation to a pumping space thereof. The present invention especially relates both to centering said mechanical seal and/or fastening said mechanical seal to the casing of said centrifugal pump and a body part used for the attachment. A characterizing feature of a mechanical seal in accordance with the present invention, comprising at least one rotary slide ring unit (24, 24?, 24?), a body part by means of which said seal is attached to said casing (16), and at least one either separate counter ring unit (42, 42?) or a counter ring unit (42, 42?) stationarily attached to said body part, is that said body part (40, 40?) is provided with inclined fastening means (52), by means of which the body part (40, 40?) is tightened to the casing both axially and radially.Type: GrantFiled: April 28, 2006Date of Patent: August 14, 2012Assignee: Sulzer Pumpen AGInventor: Heikki Manninen
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Publication number: 20120156012Abstract: A flow machine 10 for a fluid shown contains a radial sealing gap (9) which is formed between stator parts (4, 4a, 4b) and a closed impeller (3) of the flow machine, with at least one wear ring (5) arranged in a stationary manner being provided at the sealing gap and having an inner side facing the impeller, an outer side and two axially spaced apart side surfaces. A concentrically extending recess (6) in the form of a radial gap or of a radial incision is formed in the wear ring (5), with the recess 6, starting from one of the side surfaces, extending in the axial direction over more than a fifth of the axial length of the wear ring and with the wear ring (5) being produced from metal, hard metal or a ceramic material.Type: ApplicationFiled: December 14, 2011Publication date: June 21, 2012Applicant: Sulzer Pumpen AGInventor: Martin Üre Villoria
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Publication number: 20120125370Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.Type: ApplicationFiled: February 2, 2012Publication date: May 24, 2012Applicant: Sulzer Pumpen AGInventor: Juha Ottelin
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Publication number: 20120067449Abstract: An apparatus (10) for the vibration control of a rising pipe (3) of a vertical pump is presented which riser pump is excited to vibrations in operation and which has a longitudinal direction. The apparatus (10) is outwardly positionable at the rising pipe and includes a vibration element (7.1, 7.2), one or more spring elements (8.1-8.4) and a guide, wherein the vibration element has an opening to surround the rising pipe (3) and is movably and elastically held by the spring element or elements (8.1-8.4), and wherein the vibration element (7.1, 7.2) is guided by guide such that the movements of the vibration element in operation are restricted to movements in a plane perpendicular to the longitudinal direction of the rising pipe.Type: ApplicationFiled: September 9, 2011Publication date: March 22, 2012Applicant: Sulzer Pumpen AGInventor: Tomas Pesek
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Patent number: 8128785Abstract: The present invention relates to a method and apparatus for filling and cleaning a pulp tower. The invention is most suitable for filling and cleaning high-consistency pulp towers, bleaching towers, storage tanks and similar towers containing fiber suspensions, of the wood-processing industry. The apparatus and method according to the invention for filling and cleaning a pulp tower, in which method pulp is fed into the pulp tower either through its cover (10) or at least feed devices (24) arranged at its top, are characterized in that the space surrounding the feed device (24) is washable at the same time as the pulp is fed into the tower by means of washing devices (28, 30, 32) arranged in connection with the feed devices.Type: GrantFiled: August 15, 2007Date of Patent: March 6, 2012Assignee: Sulzer Pumpen AGInventor: Juha Ottelin
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Patent number: D690750Type: GrantFiled: March 14, 2013Date of Patent: October 1, 2013Assignee: Sulzer Pumpen AGInventors: Mark Kehoe, Andrejas Vukovic
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Patent number: D690751Type: GrantFiled: March 14, 2013Date of Patent: October 1, 2013Assignee: Sulzer Pumpen AGInventors: Mark Kehoe, Andrejas Vukovic
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Patent number: D690338Type: GrantFiled: March 14, 2013Date of Patent: September 24, 2013Assignee: Sulzer Pumpen AGInventors: Mark Kehoe, Andrejas Vukovic