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Voith Patent Gmbh patents


Recent patent applications related to Voith Patent Gmbh. Voith Patent Gmbh is listed as an Agent/Assignee. Note: Voith Patent Gmbh may have other listings under different names/spellings. We're not affiliated with Voith Patent Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "V" | Voith Patent Gmbh-related inventors


Actuating drive for a control valve, in particular steam turbine control valve and method for operating same

An actuating drive for a control valve contains a working cylinder which has a piston and a piston rod and forms an actuator for the control valve. The piston bounds a first pressure space and a second pressure space to displace the piston counter to the force of a spring by applying pressure to the first pressure space via a working medium. ... Voith Patent Gmbh

Actuating drive for a control valve, in particular a steam turbine control valve, and method for operating same

An actuating drive for a regulation valve has a working cylinder with a piston and a piston rod, which piston rod forms an actuator. The piston delimits a first pressure chamber of the working cylinder. ... Voith Patent Gmbh

Fibrous web winding and unwinding reel

The invention relates to a spool for winding a fibrous web, the lateral surface of which is formed by a coated spool core. The aim of the invention is to improve the winding quality by the fact that the outer lateral surface is formed by a plurality of separate coatings which are arranged axially next to one another, of which at least two adjacent coatings are made of different materials.. ... Voith Patent Gmbh

Refining set

The invention relates to a refining assembly for refining water-suspended pulp fibers between two coaxial refining surfaces which form a refining gap, rotate in relation to each other and are formed by refining bars and grooves extending therebetween. At least one directional component of the refining bars extends radially in relation to the axis of rotation. ... Voith Patent Gmbh

Journal receptacle for a wobbler connection and roll drive train comprising such a journal receptacle

A journal receptacle for a wobbler connection, in particular for the rotationally secure connection of a drive shaft, such as an articulated shaft, to a roll of a rolling mill. A wobbler hub has a receiving opening that extends in an axial direction of the wobbler hub, for the positive-locking reception of a roll journal. ... Voith Patent Gmbh

Method for manufacturing an industrial clothing

An industrial clothing, in particular a clothing for a machine for manufacturing a fibrous web, such as a paper, cardboard, or tissue web, or a non-woven product, is manufactured by: i) forming a planar structure from yarn in the form of a woven fabric, a cross-laid structure, a knitted fabric, a warp-knitted fabric; or from interconnected helical elements; ii) applying polymer material in the form of at least one group of beads to at least one surface of the planar structure, the application of the polymer commencing at starting points and terminating at terminal points remote from the starting points; iii) repeating step ii), wherein terminating points of the group of beads are spaced apart from starting points of at least one further group of beads, which generates regions with a void between the groups on the surface of the planar structure.. . ... Voith Patent Gmbh

Runner of a pelton turbine

A runner for a pelton turbine has a multiplicity of buckets which are arranged on a disk-shaped wheel and which each have a bucket root directly adjoining the wheel and a bucket body. The disk-shaped wheel, with the bucket roots, is formed in one piece from a forged material. ... Voith Patent Gmbh

Hydraulic drive for executing a linear movement

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.. ... Voith Patent Gmbh

Method for operation of a heating group subsystem, and heating group subsystem

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. ... Voith Patent Gmbh

Device for connecting a coupling shaft to a car body of a track-guided vehicle

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. ... Voith Patent Gmbh

Hydraulic drive with rapid stroke and load stroke

A hydraulic drive including at least one hydraulic cylinder that includes a piston chamber, an annulus, and a piston that separates the piston chamber from the annulus. The hydraulic drive also includes a first hydraulic pump hydraulically connected with the piston chamber, a second hydraulic pump hydraulically connected with the annulus, a third hydraulic pump, and a directional control valve that has a first switching position and a second switching position. ... Voith Patent Gmbh

Variable speed drive system and method for starting and/or operating a variable speed drive system

A variable-speed drive system includes a driven machine mechanically coupled to a drive machine by a transmission unit. At least two regulating machines are mechanically coupled to the transmission unit and operated by at least two frequency converters. ... Voith Patent Gmbh

Method and device for monitoring a wear structure, in particular a sealing structure

A method for monitoring a wear structure including at least one wear element in a machine for generating or processing a fibrous material web, includes providing a time at which the wear element became operational, providing a time at which a defined first wear level of the wear element was reached, providing at least one further characteristic variable, and predicting a remaining operating time of the wear element from the knowledge of the times, in particular from a time difference between the times, as well as from the at least one further characteristic variable, by using a computer system. A device for carrying out the method is also provided.. ... Voith Patent Gmbh

Cleaning device

A device for cleaning a continuously revolving clothing in a machine producing and/or processing a paper, cardboard, tissue or other fiber web, includes at least one cleaning nozzle generating at least one fluid cleaning jet directed towards the clothing and a channel discharging fluid and dirt from the clothing in a discharge direction. The discharge channel has a first portion with a receptacle opening at the beginning of the discharge channel and a cleaning opening facing the clothing forming a cleaning zone. ... Voith Patent Gmbh

04/19/18 / #20180109157

Method of making multi-turn coils

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.. ... Voith Patent Gmbh

03/29/18 / #20180087527

Axial impeller and fan having such an axial impeller

An axial impeller for a fan or blower includes a hub and a plurality of blades. The geometry of the blades is determined by a course of a blade leading angle and of a blade trailing angle of blade sections from a blade root at the hub to a blade tip opposite the blade root, i.e., according to the hub ratio. ... Voith Patent Gmbh

02/22/18 / #20180050709

Linkage for connecting a railcar body-side end region of a coupling rod in an articulated manner to a railcar body

A linkage articulatedly connects a railcar end portion of a coupling rod to a railcar body. A longitudinal axis of the coupling rod, in the neutral position, coincides with the longitudinal direction of the rail-borne vehicle. ... Voith Patent Gmbh

02/15/18 / #20180044855

Method for producing a large cylinder drying roller

A method for manufacturing a large-cylinder drying roller includes providing a cylindrical cylinder shell having two sides, initially attaching a respective cap to each of the sides of the cylinder shell, subsequently inserting an inner shaft coaxially within the cylinder shell and connecting the inner shaft to the caps and connecting journals to the inner shaft. The inner shaft is divided into two inner-shaft parts. ... Voith Patent Gmbh

02/08/18 / #20180041105

Cooling device for a high pole-count rotor

The present disclosure relates to cooling devices. The teachings thereof may be embodied in devices for cooling a rotor, which rotates about an axis, wherein the rotor is supported by a central rotor shaft. ... Voith Patent Gmbh

02/01/18 / #20180030653

Papermaking fabric

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. ... Voith Patent Gmbh

01/18/18 / #20180017162

Sealing strip for a sealing device in a machine for processing a paper, cardboard, or tissue web

A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. ... Voith Patent Gmbh

01/18/18 / #20180017098

Joint shaft, in particular universal joint shaft

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. ... Voith Patent Gmbh

01/18/18 / #20180017034

Method for mounting a guide apparatus

A method of mounting a guide apparatus of a large hydraulic machine with a vertical axis of rotation and wherein the axes of the guide blades extend vertically as well. The method includes the following steps: assembling an assembly with at least the upper guide wheel ring or the turbine cover and all the guide blades of the guide apparatus. ... Voith Patent Gmbh

01/11/18 / #20180010267

Fabric tape for producing web material, in particular for producing spunbonded fabric

A fabric belt on which, when used as intended in a machine for producing spunbonded fabric webs, such spunbonded fabric webs are formed and transported. The belt has longitudinal threads and transverse threads that bind with the longitudinal threads. ... Voith Patent Gmbh

12/07/17 / #20170350475

Method for operating a chain drive and assembly having a chain drive

A method of operating a chain drive that includes sprockets. Tensile chain moments on the sprockets are determined and a specification value for operating the chain drive is determined therefrom in an automated manner. ... Voith Patent Gmbh

11/16/17 / #20170327099

Working medium circuit for a hydrodynamic machine

A working medium circuit for a hydrodynamic machine. The working medium circuit includes a working medium container, an inflow line, an emptying line, and a heat exchanger. ... Voith Patent Gmbh

11/09/17 / #20170321377

Device for generating a pattern on a clothing for a machine for manufacturing a web material

A device for producing a pattern combination on a clothing includes the following: a rotary screen, a cylindrical jacket surface with a perforation pattern that defines a first pattern component. Material in the liquid or pasty state is pressed through the perforations of the jacket surface of the rotary screen and deposited on the surface of the clothing in order to produce the first pattern component on a surface of the clothing, while the rotary screen, rotating several times about a longitudinal axis thereof, rolls on the surface of the clothing in at least one path that continuously revolves on the surface of the clothing at least once. ... Voith Patent Gmbh

09/28/17 / #20170276215

Transmission and transmission turbomachine

An integral transmission for a transmission turbomachine has two gearwheels which are in mesh with a large wheel and which are each connected to a shaft that can be connected to an input and/or output unit. A housing, in which the gearwheels or the shafts connected thereto are supported and at least two partial housing units which can be connected by a main joint that extends through the support region of at least one gearwheel in mesh at least indirectly with the large wheel or of the shaft connected to the gearwheel. ... Voith Patent Gmbh

09/14/17 / #20170260959

Hydraulic turbomachine

A hydraulic turbo machine has a runner that is impinged by water. A diffuser has a multiplicity of guide blades. ... Voith Patent Gmbh

09/14/17 / #20170260664

Fabric belt for producing web material, in particular for producing spunbonded fabric

A woven-fabric belt for producing web material, in particular for producing spunbonded fabric, with a plurality of longitudinal threads, running substantially in a longitudinal belt direction, and a plurality of transverse threads, running substantially in a transverse belt direction. The longitudinal threads bind with the transverse threads at binder points, and crown regions of the longitudinal threads are formed on a web-material contacting side. ... Voith Patent Gmbh

08/31/17 / #20170247838

Method for producing or machining a roller, roller and functional layer of a roller

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. ... Voith Patent Gmbh

08/24/17 / #20170239912

Fabric and method for producing a fabric

A functional belt has a foam layer and at least one further functional layer. The foam layer and the further functional layer are joined to one another by laser transmission welding, in particular by nir laser transmission welding. ... Voith Patent Gmbh

07/27/17 / #20170211233

Roller with coating

A heatable roller suitable for a machine for producing and/or upgrading a web of material, in particular a fibrous material web such as a paper, paperboard or tissue web. The roller has a main element with a metallic and cylindrical roller wall which is heatable by suitable means and on the radially outer side of which there is, at least in sections, a coating. ... Voith Patent Gmbh

06/29/17 / #20170184193

Spur gear transmission

A spur gear transmission has at least two meshing, toothed spur gears. A covering wall surrounds the spur gears circumferentially and in the direction of their rotational axes. ... Voith Patent Gmbh

06/29/17 / #20170183819

Extruded paper machine clothing and method for the production thereof

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. ... Voith Patent Gmbh

06/22/17 / #20170175331

Suction roll assembly

A suction roll assembly for sealing at least one negative or positive pressure zone which adjoins a surface of the roll which is perforated and moves in a movement direction in a machine for making paper, tissue or cardboard, has at least one sealing element which lies opposite the moving surface and is arranged in a receptacle which can be moved to change the format of the negative or positive pressure zone. In order to simplify the adjustability of the receptacle in order to position the sealing element, there is a signal transmitter which is connected directly or indirectly to the sealing element and the signal of which can be received on that side of the moving surface which faces away from the sealing element.. ... Voith Patent Gmbh

06/22/17 / #20170174305

Watercraft, in particular tugboat

A tugboat for assisting cargo vessels has the following features: at least one propelling unit and a tow line for establishing a pulling connection between the cargo vessel and the tugboat. A measuring device measures the bollard pull and a central processing unit records the measurement result and forms a control command relating to the propelling force and/or the propelling direction for propelling purposes.. ... Voith Patent Gmbh

06/08/17 / #20170159818

Method of manufacturing and/or processing a paper, cardboard, or tissue web

A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. ... Voith Patent Gmbh

06/08/17 / #20170158211

Draft and buffer apparatus

The invention is directed to a draft and buffer apparatus for a track-guided vehicle. The apparatus includes a coupling rod and a draft yoke for connecting the coupling rod to the vehicle body. ... Voith Patent Gmbh

06/01/17 / #20170152759

Hydraulic control device for an emergency stop valve of a steam turbine and steam turbine arrangement

A hydraulic control device for an emergency stop valve of a steam turbine has a module for reducing a hydraulic pressure by rapid opening of an outflow valve and/or unloading or loading an actuator for actuating the emergency stop valve. In an operating medium supply and/or conducting system a control valve arrangement with at least three safety valves is provided, which are hydraulically interconnected such that they open the outflow valve or unload or load the actuator only when a safety circuit by way of at least two safety valves of the control valve arrangement has assumed an emergency stop position. ... Voith Patent Gmbh

05/04/17 / #20170121907

Industrial textile

An industrial textile for use in a fibrous web forming and/or processing machine has a transversal edge section which can be joined together to render the textile endless. Md-yarns are interwoven with cd-yarns. ... Voith Patent Gmbh

04/27/17 / #20170114498

Press arrangement

A press arrangement for a machine for producing and/or processing a fibrous web, in particular a paper, board or tissue web. The arrangement has at least a central roll and a first and a second mating pressing unit. ... Voith Patent Gmbh

03/02/17 / #20170056930

Method for producing a screening device

A method for producing a screening device, the method comprising the steps of providing a screening device that includes a plurality of profiled bars and a plurality of bar holder packages associated with the plurality of profiled bars. The plurality of bar holder packages include a plurality of first bar holders and at least one additional bar holder associated with the plurality of first bar holders. ... Voith Patent Gmbh

02/16/17 / #20170047825

Method for releasing the rotor poles in an electrical machine

A method releases rotor poles of a large electrical machine from the rotor hub, which in the fitted state is located within the stator. In one method step, at least one device is introduced into the air gap between the sector and a rotor pole to be released. ... Voith Patent Gmbh

02/16/17 / #20170044718

Fabric for a machine for producing a fiber web

A fabric for a machine that produces a fiber web, especially a paper-, board-, tissue- or pulp web. The fabric has a flat woven base material having a top side and a bottom side, two terminal ends separated in a machine direction. ... Voith Patent Gmbh

02/16/17 / #20170044717

Structured forming fabric for a papermaking machine, and papermaking machine

A forming fabric for a papermaking machine has a machine facing side and a web facing side. The web facing side has a structured weave of warp yarns and weft yarns that define pockets on the web facing side. ... Voith Patent Gmbh

02/16/17 / #20170044716

Fabric for a machine to produce a fiber web and method of producing a fiber web

A fabric for a machine to produce a fiber web, especially a paper-, board-, tissue- or pulp web, is formed of a flat woven base material having a top side and a bottom side, two terminal ends separated in a machine direction, folds formed in the flat woven base material being separated in the machine direction by the folding defining an inside between the two folded layers and an outside. The two terminal ends are located under the bottom side surface, wherein the two terminal ends one of are adjacent to each other or overlap each other, seam loops located at the folds characterized in that the fabric further has one, two or more sheet-like plies. ... Voith Patent Gmbh

01/19/17 / #20170016493

Hydrodynamic machine and dynamic pressure pump therefor

A hydrodynamic machine contains a bladed primary wheel driven by a rotary shaft and a bladed secondary wheel, which together form a work chamber filled with a working medium. The machine has a pressure pump for delivering a working medium from the work chamber. ... Voith Patent Gmbh

01/12/17 / #20170009385

Monofilament, fabric and production method

A monofilament is particularly suited for use as a component in an industrial textile such as a papermachine clothing (pmc) fabric. The monofilament is formed from a composition including more than 70 weight % to 99 weight % polyamide and from 1 weight % to less than 30 weight % polyphenylene ether.. ... Voith Patent Gmbh








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