Patents Assigned to Voith Patent GmbH
  • Publication number: 20200166029
    Abstract: A method for regulating output pressure of a hydraulic drive system by using a rotational speed as the actuating variable. The method includes determining a setpoint rotational speed main component of motor drive as a pilot control signal, determining an error rotational speed as a regulating deviation from a comparison of an actual pressure value of the hydraulic drive system and a setpoint pressure value of the hydraulic drive system and adjoining regulating amplifier, adding the determined setpoint rotational speed main component to the determined error rotational speed to create the setpoint rotational speed as the actuating variable, and converting the created setpoint rotational speed into an input rotational speed of the motor drive to drive the hydraulic drive system at the converted rotational speed in order to generate regulated output pressure of the hydraulic drive system which represents actual pressure value.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: Voith Patent GmbH
    Inventor: Bert Brahmer
  • Patent number: 10655276
    Abstract: A method produces or machines a roller which is suitable to be used in a machine for producing or processing a fibrous web. The roller contains a roller core and at least one functional layer. The method is characterized in that the method includes the application of a functional layer. The application of the functional layer is performed by applying a coating substrate to the surface of a roller core. The application takes place simultaneously over at least half the roller width, preferably over 75% of the roller width, particularly preferably over the entire roller width. The entire applied coating substrate or parts thereof are hardened, forming a solidified structure.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: May 19, 2020
    Assignee: Voith Patent GmbH
    Inventors: Wesley Brooks, Robert Eberhardt, Siegfried Graser, Franz Grohmann, Ting Liu, Ralf Moser, Stefan Probst-Schendzielorz, Matthias Schmitt, Michael Wokurek
  • Patent number: 10654235
    Abstract: The method includes the following steps: (i) feeding a slurry into the inlet of a press; (ii) removing liquid from the slurry as the slurry advances through a deliquefying section of the press, thereby producing a pressate stream; (iii) forming a plug of material as the slurry is advanced through a plug formation section of the press; (iv) advancing the plug of material to a discharge section of the press; and (v) removing additional liquid from the plug of material by operating the press so that the pressure in the discharge section of the press is greater than the pressure of the pressate stream by at least 2 psi. There is also described a method for controlling discharge consistency from a press, without provision of discharge restrictors, by varying a pressure differential between a discharge section of the press and a pressate stream.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 19, 2020
    Assignees: IOGEN Energy Corporation, Voith Patent GmbH
    Inventors: William Miller, Trevor Richardson, Stephen A. Rowland
  • Patent number: 10633792
    Abstract: A papermaking fabric for fibrous web forming or processing machines extends in MD and CD-directions and includes top and bottom fabric layers bound by binder yarns. The top layer is a web contacting side with top weave structures having interwoven first MD and first CD-yarns. The bottom layer is a machine contacting side with bottom weave structures having interwoven second MD and second CD-yarns. The top weave structure has repeats and forms fiber compression areas and fiber support areas recessed in thickness direction of the fabric relative to the fiber compression areas on the web side and fiber support areas separated by fiber compression areas or vice versa. A fiber compression area has adjacent top MD-floats on the web side or adjacent top CD-floats on the web side and a fiber support area has first MD and first CD-yarns interwoven in plain weave.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 28, 2020
    Assignee: Voith Patent GmbH
    Inventor: Scott D. Quigley
  • Patent number: 10612192
    Abstract: The invention relates to a press for a machine for producing a fibrous material web, including at least one press nip formed between a press roller and a counter press roller of the press for guiding through the fibrous material web in a dehydrating manner, and two band shaped covers, which are each guided by multiple guide rollers in continuous circulation, so as to run together through the press nip, so that the fibrous material web is guided through sandwiched between said covers, and then separated again at a separation point, in order to continue guiding the fibrous material web on the one cover and separate it from the other cover. One guide roller of the guide rollers arranged at the separation point is a suctioned guide roller of the one cover, to hold the fibrous material web on the one cover at the separation position.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: April 7, 2020
    Assignee: Voith Patent GmbH
    Inventors: Daniel Gronych, Thomas Rühl
  • Patent number: 10612709
    Abstract: A pipe element includes a pipe made of fiber-reinforced plastic and at least one metal connector, which is connected to the pipe in such a way that the connection can transmit torques and axial forces. The metal connector has a thread, in particular a conical thread, or a flange, by way of which thread or flange the metal connector can be screwed to another metal connector of an additional pipe element in order to connect two pipe elements. The metal connector surrounds the pipe on the outside by way of a connection region. A counter sleeve is present, which has contact with the inside of the pipe by way of a connection region. The metal connector and the counter sleeve each have a cylindrical thread, by way of which the metal connector and the counter sleeve are screwed to each other.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: April 7, 2020
    Assignee: Voith Patent GmbH
    Inventors: Juergen Bruehler, Patrick Teichelmann, Benjamin Seip
  • Patent number: 10611387
    Abstract: A draft and buffer apparatus for a track-guided vehicle includes a coupling rod and a draft yoke for connecting the coupling rod to the vehicle body. An energy-dissipating device is arranged between the vehicle and the coupling rod for receiving draft and buffer forces. The energy-dissipating device includes a reversible energy-dissipating unit and is configured so as to cause the force flow of the buffer loads transmitted thereto from the coupling rod and of the draft loads transmitted via the draft yoke thereto to be conducted through the energy-dissipating device and to be transmitted to the vehicle body. The energy-dissipating device further includes an irreversible energy-dissipating unit providing irreversible energy dissipation. The energy-dissipation device is mounted within the axial extent of the draft yoke when viewed in the longitudinal direction of the vehicle.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 7, 2020
    Assignee: Voith Patent GmbH
    Inventors: Bernhard Bonney, Martin Schueler
  • Publication number: 20200087857
    Abstract: A machine for the production of a fibrous web, with a forming region, including a forming roll and a permeable inner belt which at least partially wraps around the forming roll together with an outer belt for formation of the fibrous web. A press device is immediately downstream from the forming region for additional dewatering of the fibrous web in a press nip and with a downstream drying cylinder. The fibrous web is carried supported on the inner belt from the forming region until the transfer to the heated surface of drying cylinder takes place. The inner belt is textured in order to provide texture to fibrous web and the transfer roll is a shoe roll in order to provide an extended transfer nip.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 19, 2020
    Applicant: Voith Patent GmbH
    Inventors: Caio Penteado, Jonas Bergström
  • Patent number: 10578227
    Abstract: A hydraulic drive for executing a linear movement includes a motor, a pump, a lifting cylinder having the one linearly movable piston and a cylinder housing with at least one first connection and at least one second connection, a spring arranged such that the piston can be extended or retracted when the spring is in the relaxed state, and at least one first valve with which the first connection and the second connection of the cylinder housing can be fluidly connected. At least one second valve connected in parallel with the first valve is further provided, wherein the first valve has a maximum volumetric throughflow which is greater than the maximum volumetric through-flow of the second valve.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: March 3, 2020
    Assignee: VOITH PATENT GMBH
    Inventor: Armin Goll
  • Patent number: 10570972
    Abstract: A hydrodynamic machine comprising: a toroidal working chamber including a first bladed wheel and a second bladed wheel arranged concentrically with the first bladed wheel; and an electrohydraulic system including an open loop unit and a and closed loop control unit, a working medium accumulator, a pump operable to pump a working medium from the working medium accumulator into the toroidal working chamber, a heat exchanger, a valve operable to switch between a first position, the first position being a non-braking position, and a second position, the second position being a braking position, and a line system operable to allow the pump to pump the working medium in both the first position and the second position into the working chamber.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 25, 2020
    Assignee: Voith Patent GmbH
    Inventors: Markus Schlosser, Thorsten Lührs, Matthias Rommel, Helmut Ott
  • Patent number: 10544774
    Abstract: A runner for a hydraulic turbine or pump has a plurality of blades. Each of the blades is defined by a pressure surface, an oppositely facing suction surface, a leading edge and a spaced-apart trailing edge. At least one of the blades has a device for supplying a flow of oxygen containing gas to the trailing edge of the same blade. The device includes at least two separate gas inlet apertures and at least two separate gas passages, each extending from one of the separate gas inlet apertures to a separate group of orifices in the trailing edge of the same blade. Each of the separate group of orifices has at least one orifice to admit gas out of the corresponding separate gas passage to the passing fluid during the operation of the runner.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: January 28, 2020
    Assignee: Voith Patent GmbH
    Inventors: Manfred Stummer, Stuart Coulson, Jason Foust
  • Patent number: 10533602
    Abstract: A hydrodynamic plain bearing includes a bearing shell having an inner surface which forms a bearing surface for a rotating shaft or the like. The bearing surface has a plurality of surface segments separated from each other and disposed successively in the circumferential direction of the bearing shell. At least the bearing surface or the entire bearing shell is made from CuCr1Zr.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: January 14, 2020
    Assignee: Voith Patent GmbH
    Inventor: Andreas Fuchs
  • Patent number: 10533679
    Abstract: An electromagnetic drive for implementing a linear motion includes an electromagnet having a coil, a core and an armature able to move linearly along a symmetrical axis of the core, wherein an air gap is formed between the core and the armature. With the objective of providing for simple, compact, cost-effective and flexible use of the electromagnetic drive in high-pressure systems as well as a concurrent exact positioning of the piston at any given position at optimized extension speed, it is provided for the air gap to exhibit a base and two limbs running symmetrically to the symmetrical axis as well as an essentially frustoconical cross-section in longitudinal section and for the limbs to be arranged relative to the symmetrical axis of the core so as to form an angle ?.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 14, 2020
    Assignee: VOITH PATENT GMBH
    Inventors: Armin Goll, Stefan Lehmann, Steffen Lindörfer
  • Patent number: 10533284
    Abstract: A method for operating a heating group subsystem of a machine for the production or treatment of a fibrous web. The heating group subsystem includes a first heating group and a last heating group and at least one additional heating group; in each case having at least one device that is heated with pressurized heating steam. Viewed in a direction of travel, the fibrous web is fed first through the first heating group, then through the at least one additional heating group, and thereafter through last heating group. The steam pressure of the heating steam of the at least one additional heating group is adjusted lower than the respective steam pressure of the heating steam of first heating group and of last heating group.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 14, 2020
    Assignee: Voith Patent GmbH
    Inventors: Martin Dauner, Thomas Mack, Christoph Adams, Frank-Udo Schönborn
  • Publication number: 20200001844
    Abstract: A method for controlling a separating clutch in a power train of a vehicle having a drive motor and a retarder. The clutch is arranged such that a rotor of the retarder is switched into a drive connection with the motor and/or power train via the clutch and a working chamber of the retarder can be filled with an operating medium to build up a braking power such that braking torque is exerted by the retarder onto the power train and/or motor. A control system switches the clutch into a closed or an open position. The switching of the clutch into the closed position occurs depending on an input signal to the controller, and the clutch is switched back into the open position depending on essentially no medium being present in the working chamber of the retarder and that predetermined limits of an operating and/or environmental parameter are not exceeded.
    Type: Application
    Filed: September 6, 2019
    Publication date: January 2, 2020
    Applicant: Voith Patent GmbH
    Inventors: Werner Adams, Achim Menne, Philipp Müller
  • Patent number: 10520010
    Abstract: A joint shaft, in particular a universal joint shaft, has first and second axial connection ends and a central part that connects the two connection ends to one another in a torsionally rigid and pivotable manner. At least one intermediate sleeve is provided between a first and a second shaft element with internal gearing having inner teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis, and external gearing with outer teeth, which are distributed over the circumference and extend in the direction of the longitudinal axis. The sleeve is longitudinally displaceable relative to the first shaft element and to the second shaft element and is attached directly or indirectly in a torsionally rigid manner to the first shaft element by way of the intermediate sleeve external gearing and to the second shaft element by way of the intermediate sleeve internal gearing.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: December 31, 2019
    Assignee: Voith Patent GmbH
    Inventors: Peter Grawenhof, Erich Haluk, Roger Clement
  • Patent number: 10523076
    Abstract: A method of fabricating a dynamoelectric machine utilizing multi-turn coils includes manufacturing a multi-turn coil having turn and ground insulation and installation of the coil into the stator core of the machine. The loop regions of the coil have no ground insulation during installation and the ground insulation at the loop regions is completed after installation of the coil.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 31, 2019
    Assignee: Voith Patent GmbH
    Inventors: Inna Kremza, Jeff Fenwick
  • Patent number: 10507850
    Abstract: A device for connecting a coupling shaft to a car body of a track-guided vehicle, wherein the device includes a linkage connected to the coupling shaft and a bearing block connectable to the car body to which the linkage is articulated by means of at least one pivot pin so as to be pivotable in a horizontal plane. At least one pivot pin is designed as a shock protector and thereto comprises a bearing disc having a concentrically arranged recess and a shearing element having a breaking or separating region. A bearing block-side region of the shearing element is accommodated in the recess of the bearing disc and a linkage-side region of the shearing element is accommodated in a pin seat of the linkage.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: December 17, 2019
    Assignee: VOITH PATENT GMBH
    Inventors: Arthur Kontetzki, Eckart Jäde
  • Patent number: 10502309
    Abstract: A spur gear transmission has at least two toothed spur gears, the toothings of which are in meshing engagement with one another and which are each rotatable about an axis of rotation. An enveloping wall encloses the two spur gears in a circumferential direction and in the direction of the axes of rotation. The enveloping wall has an inner contour which is adapted to the outer diameters of the spur gears such that ring-shaped gaps that merge into one another are formed between the enveloping wall and the spur gears. Each ring-shaped gap is arranged at least substantially concentrically with respect to a respective axis of rotation. The enveloping wall is formed by a multi-part housing which is closed along a parting joint. The parting joint extends partially or entirely substantially within a plane in which one of the two axes of rotation or both axes of rotation run.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: December 10, 2019
    Assignee: Voith Patent GmbH
    Inventors: Steffen Kaemmerer, Ralph Rudolph, Matthias Rauch, Marco Schneider
  • Patent number: 10501889
    Abstract: A clothing for a machine producing and/or processing a fibrous web extending in longitudinal and widthwise directions, includes a basic structure providing dimensional stability in longitudinal and/or widthwise directions. The structure includes a band-shaped, one-piece grid having widthwise-adjacent first material strands and polymer material having lengths in a longitudinal direction, and adjacent second interconnected material strands and/or droplets and polymer material, contacting the first strands at contact points forming the grid. The strands and/or droplets are deposited by extrusion of the polymer materials in liquid or pasty state onto a depositing surface forming a portion or all of the grid in liquid or pasty state, the polymer materials are solidified, converting the portion or the grid from liquid or pasty to solidified, stable, self-supporting state producing bonding at the contact points, and removing the portion or the grid from the surface.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: December 10, 2019
    Assignee: Voith Patent GmbH
    Inventors: Juergen Abraham, Antony Morton