Sulzer Pumpen AG Patent applications |
Patent application number | Title | Published |
20150285251 | Pump - A pump including an outer housing having an outlet chamber with an outlet connector, and including a first part pump and a second part pump connected thereafter, with the first and second part pumps being arranged in the outer housing, a separating element which can be arranged between the first and second part pumps and a rotor shaft which is rotatably arranged in the first and second part pumps. In accordance with the invention, the outer housing, the first part pump and the separating element bound a first pressure chamber and the outer housing, the second part pump and the separating element bound a second pressure chamber and the first and second pressure chambers are designed and arranged such that the outlet chamber is formed as a single high-pressure region of the pump. | 10-08-2015 |
20150240818 | PUMP FOR CONVEYING WASTE WATER AS WELL AS IMPELLER AND BASE PLATE FOR SUCH A PUMP - An impeller for a pump for conveying waste water is proposed having a support body ( | 08-27-2015 |
20150159669 | SEALING ARRANGEMENT AND PUMP HAVING A SEALING ARRANGEMENT - The invention relates to a sealing arrangement for a high-pressure space having a bounding element and a termination element. The bounding element has an outer sealing surface and the termination element has an inner sealing surface. The outer sealing surface and the inner sealing surface are arranged such that a sealing-off of the high-pressure space is achieved via a contact of the two sealing surfaces. In accordance with the invention the bounding element is designed such that a force in the direction of the inner sealing surface can act on the outer sealing surface due to a pressure in the high-pressure space. Thereby a sealing function is also achieved then when the termination element deforms due to the pressure in the high-pressure space. The sealing arrangement in accordance with the invention can be used particularly advantageously in pumps. | 06-11-2015 |
20140314599 | CENTRIFUGAL PUMP - The present invention relates to a novel bearing arrangement for a centrifugal pump. The bearing arrangement comprises a thrust bearing ( | 10-23-2014 |
20140313852 | AGITATOR AND A METHOD OF REPLACING A SHAFT SEAL OF AN AGITATOR - Disclosed is an agitator having a drive unit coupled by means of a coupling to a first end of a drive shaft, a propeller attached to a second end of the drive shaft, the drive unit being attached to a mounting flange adapted for fastening the agitator to a wall of a mixing vessel, the agitator further comprising a support housing having at least a tubular support frame with a first end and a second end, the first end of the tubular support frame being attached to the mounting flange, the second end of the tubular support frame being provided with a support bearing for supporting the second end of the drive shaft, wherein a shaft seal is arranged at the first end of the tubular support frame and sealing means is arranged in connection with the second end of both the drive shaft and the tubular support frame. | 10-23-2014 |
20140241870 | PUMPING APPARATUS AS WELL AS A DIFFUSOR FOR A PUMPING APPARATUS - Disclosed are a diffuser and a pump including a feed column extending around a diffusor axis of the pump and having a rotor housing which is arranged between an intake and a diffusor arranged in a diffusor section. During operation, fluid is sucked by the pump rotor via the intake, and is discharged from the feed column via the diffusor section, the feed tube and the outlet stub. The diffusor includes an inlet section arranged between an outlet section and the pump rotor, wherein a first part section adjacent to the inlet section is formed at the outlet section, the first part section is inclined with respect to the diffusor axis at a first angle (α). A second part section adjoining the first part section is inclined with respect to the diffusor axis at a second angle (β) different from the first outlet angle (α). | 08-28-2014 |
20140205477 | CENTRIFUGAL PUMP, A SHAFT THEREFOR AND A SLEEVE FOR COUPLING THE SHAFT OF A CENTRIFUGAL PUMP TO A SHAFT OF A DRIVE MOTOR - The present invention relates to a centrifugal pump, especially to a close coupled centrifugal pump. The centrifugal pump ( | 07-24-2014 |
20140157873 | TESTING APPARATUS FOR AN OUTER HOUSING OF A PUMP AND METHOD FOR THE TESTING OF AN OUTER HOUSING OF A PUMP - Disclosed is a testing apparatus for an outer housing of a pump, wherein the testing apparatus includes a separation element; a first and a second closure element, wherein the first and second closure element respectively close an axial end of the outer housing in a sealing manner; a middle pressure line which is arranged in the first or the second closure element; and a bounding element, wherein the bounding element closes the outlet outside of the outer housing, and wherein a high pressure line is arranged in the bounding element. The separation element is configured and arranged in the outer housing such that the separation element bounds the outlet of the outer housing and the outer housing is divided into a first pressure region and a second pressure region, wherein the first pressure region and the second pressure region are configured as pressure regions independent from one another. | 06-12-2014 |
20140079558 | IMPELLER FOR A CENTRIFUGAL PUMP - The present invention relates to a centrifugal pump, the impeller of which comprises a shroud (34) with at least one solid and rigid working vane (36), and at least one solid and rigid rear vane (38), the at least one working vane (36) having a leading edge region (46), a trailing edge region (48), a central region (C), a side edge, a pressure face (42) and a suction face (44), the at least one solid and rigid rear vane (38) having a trailing edge region, a side edge, a pressure face and a suction face. The trailing edge region (48) of the at least one working vane (36) is rounded by means of a rounding to have a thickness greater than that in the central region (C). | 03-20-2014 |
20130315762 | SEALING ARRANGEMENT AND PUMP HAVING A SEALING ARRANGEMENT - 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. | 11-28-2013 |
20130315730 | PUMP AND DRIVE BEARING FOR A PUMP - 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. | 11-28-2013 |
20130315709 | PUMP, SEPARATION DEVICE FOR A PUMP, AND ROTOR SHAFT FOR A PUMP - Disclosed is a pump having a pump rotor rotatably supported about an axis of rotation in a pump stator. In this respect, the pump rotor is designed and is arranged above a rotor shaft in a shaft bearing such that a lubricating film of a lubricating fluid formed from the pump fluid can be formed in a lubricating ring gap between the rotor shaft and the shaft bearing. In accordance with the invention, a separation device is provided at the rotor shaft by which a predefinable quantity of the ingredient can be separated from the pump fluid by means of a centrifugal force in the operating state for providing the lubricating fluid. | 11-28-2013 |
20130315518 | BEARING PAD, SUPPORT BODY, BEARING ARRANGEMENT AND PUMP - A bearing pad, including a pad body ( | 11-28-2013 |
20130302160 | SEALING ARRANGEMENT FOR A FLOW MACHINE - 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. | 11-14-2013 |
20130209226 | PUMP AS WELL AS A RECIRULATION DEVICE FOR A PUMP - Disclosed is a pump for conveying a pump having a pump rotor rotatably supported about an axis of rotation in a pump stator in the operating state and a rotor shaft is arranged in a shaft leadthrough such that a lubricating film of a lubricating fluid formed from the pump fluid can be formed in a ring gap between the rotor shaft and the shaft leadthrough; and wherein a separation device is provided at the rotor shaft by which a predefinable quantity of an ingredient can be separated from the pump fluid by means of a centrifugal force for providing the lubricating fluid at the ring gap in the operating state, wherein a recirculation device is provided so that a gas can be recirculated with the aid of the separation device. | 08-15-2013 |
20130062832 | FLOW MACHINE, SLIDE RING SEAL THEREOF, BODY PART FOR SAID SLIDE RING SEAL AND METHOD OF FASTENING SAID SLIDE RING SEAL TO SAID FLOW MACHINE - 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 ( | 03-14-2013 |
20130058774 | VOLUTE SHAPED PUMP CASING WITH SPLITTER RIB - 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. | 03-07-2013 |
20130058767 | CENTRIFUGAL PUMP, A SHAFT SLEEVE AND A STATIONARY SEAL MEMBER - 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. A characterizing feature of a centrifugal pump comprising a pump housing ( | 03-07-2013 |
20120156012 | Flow machine for a fluid having a radial sealing gap and a stationary wear ring - A flow machine | 06-21-2012 |
20120125370 | Method and Apparatus for Filling and Cleaning a Pulp Tower - 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 ( | 05-24-2012 |
20120067449 | Apparatus and method for the vibration control of a rising pipe of a vertical pump - An apparatus ( | 03-22-2012 |
20120027564 | Method for the pressure regulation of a barrier fluid and a pumping device for a method of this kind - A method for the pressure regulation of a barrier fluid in a pumping device ( | 02-02-2012 |
20110311357 | Volute Shaped Pump Casing for a Centrifugal Pump - A volute shaped pump casing ( | 12-22-2011 |
20110280741 | Helico-axial pump, rotor for a helico-axial pump as well as method for journalling a rotor in a helico-axial pump - The invention relates to a helico-axial pump ( | 11-17-2011 |
20110280706 | Helico-axial pump, a rotor for a helico-axial pump, method for the hydrodynamic journalling of a rotor of a helico-axial pump, as well as a hybrid pump with a rotor for a helico-axial pump - The invention relates to a helico-axial pump ( | 11-17-2011 |
20110229308 | Centrifugal pump having an apparatus for the removal of particles - A centrifugal pump ( | 09-22-2011 |
20110182756 | Multi-Phase Pump - A multi-phase pump for the pumping of mixtures, which contain a plurality of phases is proposed. The multi-phase pump ( | 07-28-2011 |
20100258257 | Method of and Apparatus for Controlling the Height of a Column of Material in a Vessel Upstream of a Pump - 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. | 10-14-2010 |
20100098525 | Pump System And Method For Delivering Multi-Phase Mixtures - A pump system ( | 04-22-2010 |
20090303832 | Agitator - The present invention relates to an agitator. The present invention especially relates to an agitator, which may be attached to the bottom, wall or cover of a mixing vessel. The agitator in accordance with the present invention is especially applicable to purposes where a relatively large and slowly rotating agitator is required. Thus, for example, agitators used in dilution vessels and the like of wood processing industry come into question. A characterizing feature of an agitator in accordance with the present invention is that the drive unit of the agitator comprises a disc ( | 12-10-2009 |
20090213686 | Method and Apparatus for Feeding Gaseous or Liquid Fluid into a Medium - The present invention relates to a method of and an apparatus for feeding gaseous or liquid fluid into a medium. The method and apparatus in accordance with the present invention are especially suitable in various fields of industry for mixing gaseous and liquid chemicals and steams into a flow containing at least liquid. The method and apparatus in accordance with the present invention are most preferably suitable for feeding steam into the fiber suspensions of wood processing industry. Most preferably the method and apparatus in accordance with the present invention is used, for example, in such a way that a side flow is taken from a first medium flowing along a suction duct ( | 08-27-2009 |
20090116960 | Centrifugal Pump, A Shaft Sleeve And A Stationary Seal Member - 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. A characterizing feature of a centrifugal pump comprising a pump housing ( | 05-07-2009 |
20080213093 | Impeller for Pumps - A rotary wheel ( | 09-04-2008 |