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公开(公告)号：US11639163B2
公开(公告)日：2023-05-02
申请号：US17276238
申请日：2019-09-04
申请人： VOITH PATENT GMBH
摘要： A hydrodynamic retarder having a rotor and a stator or a rotor and an oppositely running rotor, which together form a toroidal working chamber to filled with working medium, in order to transmit a torque by means of a hydrodynamic working chamber working medium circuit. An external working medium circuit has a heat exchanger that discharges heat from the working medium. The external working medium circuit is connected by a working medium inlet and a working medium outlet to the working chamber. The working medium inlet and outlet open to the working chamber at a torus outer diameter of the working chamber. A working medium feed line opens into the external working medium circuit. A core ring filling line is connected in working-medium-conducting fashion to the working chamber. The core ring filling line opens into a core ring of the working chamber radially within the torus outer diameter.
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公开(公告)号：US11608594B2
公开(公告)日：2023-03-21
申请号：US17045547
申请日：2019-04-16
申请人： VOITH PATENT GMBH
发明人： Uwe Koeckritz , Reinhard Holl , Michael Straub , Jens Kallenberg , Timo Kalefe , Tom Meijer , Johan Bergvall , Johann Boeck
摘要： A paper machine clothing has a substrate with an upper side, a lower side, two lateral edges and a usable region between the two lateral edges. The usable region is formed with a plurality of through-channels extending through the substrate and connecting the upper side with the lower side. The through-channels are non-cylindrical with a cross sectional area becoming smaller when going in a thickness direction of the substrate from the upper side to a middle region of the substrate between the upper side and the lower side, wherein a shape of the cross sectional area of at least one through-channel, preferably of all through-channels, of the plurality of through-channels changes proceeding in the thickness direction of the substrate from the upper side to the lower side.
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公开(公告)号：US11578439B2
公开(公告)日：2023-02-14
申请号：US16331553
申请日：2017-09-11
发明人： Thomas Weigert , Kai Poehler , Ralf Schroeder
摘要： A method of manufacturing a wet-laid nonwoven web includes the following steps: feeding a pulp suspension onto a forming screen for depositing a fibrous web thereon, wherein the pulp suspension has industrially produced, inorganic fibers or fibers of synthetically produced polymers and the pulp suspension is substantially free from binders, such as chemical binders, and hydraulic consolidation of the fibrous web to generate the nonwoven web through water jet needling of the fibrous web.
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公开(公告)号：US20230037357A1
公开(公告)日：2023-02-09
申请号：US17967493
申请日：2022-10-17
申请人： Voith Patent GmbH
发明人： Axel Erzler , Thomas Jaschek
摘要： A system for purifying a fibrous suspension consists of multiple hydro-cyclones arranged adjacent to one another in a row, each of the hydro-cyclones having at least one feed connection, one accepted stock connection and one reject material connection, and having at least one supply manifold which is connected to multiple feed connections and/or having at least one accepted stock manifold which is connected to multiple accepted stock connections and/or having at least one reject material manifold which is connected to multiple reject material connections, the manifold being elongated and the corresponding connections discharge at their longitudinal side into the corresponding manifold. At an end of at least one manifold which follows the final hydro-cyclone, a fluid or a suspension is guided via at least one flushing connection into or out of the manifold.
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公开(公告)号：US20230013706A1
公开(公告)日：2023-01-19
申请号：US17783842
申请日：2020-11-11
申请人： Voith Patent GmbH
发明人： Robert Eberhardt , Tobias Englet
摘要： A clothing or seamed felt for a pressing section of a machine producing a fibrous web includes at least one base structure and at least one staple fiber layer is disposed on the base structure. The staple fiber layer is disposed on a side facing the fibrous web and/or the machine. At least one seam zone has seam loops connected to one another by at least one pintle or seam wire making the clothing endless. The staple fiber layer is divided in the region of the seam zone by at least one cut forming a seam flap and a seam wedge or gusset. At least one connecting element is inserted between the seam flap and the seam wedge. The connecting element is materially connected, in particular welded, to staple fibers of the seam flap and/or of the seam wedge. A method for using the clothing is also provided.
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公开(公告)号：US11530678B2
公开(公告)日：2022-12-20
申请号：US17040303
申请日：2019-02-28
申请人： Voith Patent GmbH
发明人： Stuart Coulson , Jason Foust , Jesse Zoll , Steven McHale , Jianbo Jiang , Brandon Harmer
摘要： A wicket gate for a hydraulic turbine or pump contains a blade being defined by a pressure surface, an oppositely facing suction surface, a leading edge and a spaced apart trailing edge, a first trunnion, a second trunnion, an air inlet aperture, an air passage and at least one air outlet aperture. The profile of the suctions side surface of the blade along a cross section through a point P1 and a point P2 is concave. Whereas point P1 is located on the suction side surface of the trailing edge where an air outlet aperture is located and point P2 is spaced apart from point P1 by less than 10% of the wicket gate length D and point P2 is located upstream of point P1 on a line perpendicular to the trailing edge starting at point P1.
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公开(公告)号：US20220389973A1
公开(公告)日：2022-12-08
申请号：US17844347
申请日：2022-06-20
申请人： Voith Patent GmbH
发明人： Jonny Pönitz
摘要： A clutch device with friction linings includes: a clutch housing, the friction linings including a first friction lining and a second friction lining, the first friction lining being arranged on the clutch housing, the clutch housing including a stop surface; a tapered ring, the second friction lining being arranged on the tapered ring, the plurality of friction linings being arranged relative to one another so that the plurality of friction linings can be brought into full contact with one another in a contact plane, the tapered ring including a reference surface; a spring element; a clutch actuating device, a wear gap being formed between the stop surface and the reference surface, the wear gap configured for becoming wider as the friction linings wear; and a locking element configured for being moved into the wear gap when the wear gap exceeds a definable maximum width.
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公开(公告)号：US11505898B2
公开(公告)日：2022-11-22
申请号：US17250224
申请日：2019-06-18
申请人： VOITH PATENT GMBH
发明人： Uwe Köckritz , Jens Kallenberg , Petra Hack-Ueberall , Gregory Allen Elliott , Thomas Anthony Hensler , James E. Sealy, II , Marc Paul Begin
IPC分类号： D21F1/00
摘要： The invention relates to a clothing (10) for a machine to manufacture or refine a fibrous web, in particular a paper, cardboard, or tissue web, comprising a substrate (40) and a grid structure (20) applied on the substrate (40), on which the fibrous web is transported when the clothing (10) is used as intended, wherein the grid structure (20′) comprises a plurality of first elements (24′), all of which aligned in a first direction, and a plurality of second elements (26′), all of which aligned in a second direction, which is different from the first direction, wherein the first elements (24′) penetrate the second elements (26′), forming the grid structure (20′), such that an underside of the first elements (24′) facing the substrate (40) and an underside of the second elements (26′) facing the substrate (40) are located in a common plane. In addition, the present invention relates to a method for producing such a clothing.
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公开(公告)号：US11486479B2
公开(公告)日：2022-11-01
申请号：US17317955
申请日：2021-05-12
申请人： Voith Patent GmbH
发明人： Reinhard Kernchen
摘要： A high-speed hydrodynamic adjustable converter having a working chamber for forming a hydrodynamic working medium circuit wherein a pump wheel, a turbine wheel and a guide wheel are positioned in the working chamber. The working medium flows through the pump wheel centrifugally or centrifugally-diagonally; and the working medium flows through the turbine wheel centripetally or centripetally-diagonally. The inlet grate edge of the turbine wheel, with respect to an axis of rotation of the pump wheel and the turbine wheel, is positioned on a smaller or equal radius than an inlet grate edge of the pump wheel. The hydrodynamic converter has a first guide wheel in the working chamber before the pump wheel viewed in the direction of flow of the working medium, the guide wheel being arranged for purely centrifugal or diagonal-centrifugal throughflow of the working medium and is used to influence the power transmission.
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公开(公告)号：US20220333306A1
公开(公告)日：2022-10-20
申请号：US17760625
申请日：2020-09-23
申请人： VOITH PATENT GMBH
发明人： Marc Erkelenz
摘要： A sealing strip and a sealing device for sealing a negative-pressure zone of a suction roller for a machine for producing or processing a fibrous web, such as a paper, board or tissue machine. The stealing strip has an upper face, which forms a sealing surface of the sealing strip, and the sealing strip includes a sensor unit, which has a first temperature sensor at a first distance from the sealing surface and a second temperature sensor at a second distance from the sealing surface. The first distance is smaller than the second distance. The sealing strip is formed of a base material and a protective material which is different from the base material, and the sensor unit is embedded, in particular cast, into the protective material.
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