Patents by Inventor Qinghua Zheng
Qinghua Zheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9152600Abstract: A network caching system has a multi-protocol caching filer coupled to an origin server to provide storage virtualization of data served by the filer in response to data access requests issued by multi-protocol clients over a computer network. The multi-protocol caching filer includes a file system configured to manage a sparse volume that “virtualizes” a storage space of the data to thereby provide a cache function that enables access to data by the multi-protocol clients. To that end, the caching filer further includes a multi-protocol engine configured to translate the multi-protocol client data access requests into generic file system primitive operations executable by both the caching filer and the origin server.Type: GrantFiled: July 18, 2013Date of Patent: October 6, 2015Assignee: NetApp, Inc.Inventors: Jason Ansel Lango, Robert M. English, Paul Christopher Eastham, Qinghua Zheng, Brian Mederic Quirion, Peter Griess, Matthew Benjamin Amdur, Kartik Ayyar, Robert Lieh-Yuan Tsai, David Grunwald, J. Chris Wagner, Emmanuel Ackaouy, Ashish Prakash
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Publication number: 20140368062Abstract: Disclosed is a linear synchronous motor comprising an elongate stator extending in a longitudinal direction and having a plurality of coil windings, and a runner having a multiplicity of successive magnets disposed along the length thereof the longitudinal direction. The elongate stator has a plurality of elongate-stator segments arranged successively in the longitudinal direction, with each elongate-stator segment separated from the next successive elongate-stator segment by a gap. A total section length of one elongate-stator segment and an adjacent gap is a constant value over a plurality of successive elongate-stator segments, wherein a runner length measured in the longitudinal direction across all magnets successively disposed on the runner, is an integer multiple of the total section length.Type: ApplicationFiled: December 3, 2012Publication date: December 18, 2014Applicant: ThyssenKrupp Elevator AGInventors: Friedrich Loeser, Qinghua Zheng
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Patent number: 8626866Abstract: A network caching system has a multi-protocol caching filer coupled to an origin server to provide storage virtualization of data served by the filer in response to data access requests issued by multi-protocol clients over a computer network. The multi-protocol caching filer includes a file system configured to manage a sparse volume that “virtualizes” a storage space of the data to thereby provide a cache function that enables access to data by the multi-protocol clients. To that end, the caching filer further includes a multi-protocol engine configured to translate the multi-protocol client data access requests into generic file system primitive operations executable by both the caching filer and the origin server.Type: GrantFiled: August 10, 2011Date of Patent: January 7, 2014Assignee: NetApp, Inc.Inventors: Jason Ansel Lango, Robert M. English, Paul Christopher Eastham, Qinghua Zheng, Brian Mederic Quirion, Peter Griess, Matthew Benjamin Amdur, Kartik Ayyar, Robert Lieh-Yuan Tsai, David Grunwald, J. Chris Wagner, Emmanuel Ackaouy, Ashish Prakash
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Patent number: 8610322Abstract: The invention relates to a magnetic bearing and to a method for operation thereof. The magnetic bearing contains a ferromagnetic, movably mounted bearing element (1) and at least two magnetic devices (3o, 3u) arranged on opposing sides of the bearing element (1) and equipped with windings (6), wherein during operation of the magnetic bearing, electric currents are conducted through the windings (6) and these currents are regulated such that in an equilibrium state between the bearing element (1) and the two magnetic devices (3o, 3u), bearing gaps (10o, 10u) of predetermined size (So, Su) form. According to the invention, the temperatures produced in the magnetic devices (3o, 3u) during operation are measured and the regulation of the currents takes place such that in the equilibrium state, regardless of the load situation, the same temperatures appear in the magnetic devices (3o, 3u) or in the windings (6) thereof (FIG. 1).Type: GrantFiled: July 10, 2009Date of Patent: December 17, 2013Assignees: ThyssenKrupp Transrapid GmbH, ThyssenKrupp Rothe Erde GmbHInventors: Luitpold Miller, Qinghua Zheng
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Publication number: 20130304844Abstract: A network caching system has a multi-protocol caching filer coupled to an origin server to provide storage virtualization of data served by the filer in response to data access requests issued by multi-protocol clients over a computer network. The multi-protocol caching filer includes a file system configured to manage a sparse volume that “virtualizes” a storage space of the data to thereby provide a cache function that enables access to data by the multi-protocol clients. To that end, the caching filer further includes a multi-protocol engine configured to translate the multi-protocol client data access requests into generic file system primitive operations executable by both the caching filer and the origin server.Type: ApplicationFiled: July 18, 2013Publication date: November 14, 2013Applicant: NetApp, Inc.Inventors: Jason Ansel Lango, Robert M. English, Paul Christopher Eastham, Qinghua Zheng, Brian Mederic Quirion, Peter Griess, Matthew Benjamin Amdur, Kartik Ayyar, Robert Lieh-Yuan Tsai, David Grunwald, J. Chris Wagner, Emmanuel Ackaouy, Ashish Prakash
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Patent number: 8477004Abstract: A magnet pole for magnetic levitation vehicles includes an iron core (1) having an upper pole surface (2), a lower contact surface (3) for a magnet rear side (4) and a circumferential surface (5) disposed between the pole surface (2) and the contact surface (3). A coil (6) is applied onto the circumferential surface (5) of the iron core (1). An intermediate layer is made of an electrically insulating material, which is disposed between the circumferential surface (5) and the coil (6). A protective layer (9) encapsulates the coil (6). At least the pole surface (2) of the iron core (1) is made of a hard material and abuts the circumferential surface (5) in a lower region of the iron core (1). The protective layer (9) contains a section (15) made of an elastic material in a region adjacent to the circumferential surface (5).Type: GrantFiled: July 29, 2010Date of Patent: July 2, 2013Assignee: Thyssenkrupp Transrapid GmbHInventors: Peter Bugiel, Andreas Diekmann, Joachim Kraemer, Daniel Tschada, Qinghua Zheng
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Patent number: 8430039Abstract: The invention relates to a magnetic levitation vehicle (11) and to a method for lifting said magnetic levitation vehicle (11) and to lowering said magnetic levitation vehicle onto a roadway. According to the invention, the carrier magnetic units (38) of the magnetic levitation vehicle (11) are not all activated or deactivated at the same time but at different times in order to keep the current energy requirement from an external energy supply or main power supply to a minimum.Type: GrantFiled: September 1, 2008Date of Patent: April 30, 2013Assignee: ThyssenKrupp Transrapid GmbHInventors: Qinghua Zheng, Peter Becker
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Patent number: 8430037Abstract: The invention relates to a magnetic levitation train, comprising a track system formed of track system carriers (2) and a vehicle (1) having at least one first magnetic system (7), which together with stator packs (4) mounted on the track system forms a long stator linear motor and during operation is disposed at a distance from the stator packs (4) by a small carrying gap. According to the invention, first sound damping bodies (14) are disposed on the carriers (2) in a space which is located between the carrier (2) and the magnetic system (7) and the carrying gap when a vehicle (1) passes. In addition, second sound damping bodies (15) are provided on the vehicle (1) on the side of the magnetic system (7) facing away from the carrier (2).Type: GrantFiled: December 16, 2008Date of Patent: April 30, 2013Assignee: ThyssenKrupp Transrapid GmbHInventors: Luitpold Miller, Qinghua Zheng
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Patent number: 8402899Abstract: The invention relates to a maglev railway comprising a support and drive system of the long stator-linear motor type, magnetic support poles that are situated in the vehicle being additionally provided with linear generator windings (10) that generate electric energy in the vehicle. The aim of the invention is to prevent unwanted, periodic vibrations (ripples) from being generated at low speeds. To achieve this, according to the invention, the teeth (5) and grooves (6) of the long stator (3) are arranged in high-speed sections (2a) parallel to the cores and the linear generator windings (10) of the support magnets provided in said cores and in low-speed sections (2b) obliquely to said cores (7) and linear generator windings.Type: GrantFiled: November 28, 2008Date of Patent: March 26, 2013Assignee: ThyssenKrupp Transrapid GmbHInventors: Friedrich Loeser, Qinghua Zheng, Luitpold Miller
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Publication number: 20130036935Abstract: The guideway support comprises at least one gliding surface (14, 19, 34) for magnetic levitation vehicles (4), which have at least one skid (8) designated for placement on the gliding surface (14, 19, 34), wherein the gliding surface (14, 19, 34) is provided with a low-friction, multi-layered coating having at least one ceramic layer (15, 22, 35, 36) arranged on the gliding surface (14, 19, 34). The guideway support is characterized in that at least one non-ceramic layer (17, 23, 37), produced in a thermal spraying process, is arranged on the ceramic layer (15, 22, 35, 36).Type: ApplicationFiled: April 29, 2011Publication date: February 14, 2013Inventors: Markus Bauer, Qinghua Zheng
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Patent number: 8319385Abstract: A method is provided for supporting rotatable devices, particularly a medical scanner having an inner ring and an outer ring. According to the invention, the inner ring and outer ring are guided without contact in the axial and/or radial direction by the magnetic field of electromagnets, and the distance between them is monitored and controlled by means of distance sensors. For a bearing implementing said method according to the invention, the outer ring is made in multiple parts and has a U-shaped cross section that is open to the inside in the assembled state, into which the inner ring (1, 10, 11) extends, and electromagnets and distance sensors are disposed in the axially and radially opposite areas of the inner ring or outer ring.Type: GrantFiled: August 13, 2008Date of Patent: November 27, 2012Assignees: Rothe Erde GmbH, ThyssenKrupp Transrapid GmbHInventors: Uwe-Otto Breucker, Wolfgang Claus, Jörg Rollmann, Freidrich Löser, Qinghua Zheng, Markus Bauer
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Patent number: 8297195Abstract: A method for operation of a magnetic levitation railway which contains vehicles with a plurality of supporting magnets (20a . . . 20j) and supporting runners (26) associated with them. In the event of a malfunction, the braking of the vehicle with the drive and braking systems switched off is brought about or assisted until a preselected destination stopping point is reached solely in that, even before the destination stopping point is reached, at least one of the supporting magnets (for example 20f, 20g) is switched off, and the magnetic levitation vehicle is placed on the track path (3) by means of the associated supporting runner (26), and is brought to rest at the destination stopping point by making use of the friction forces that occur as a result. A magnetic levitation vehicle is provided and operated in this way.Type: GrantFiled: November 26, 2007Date of Patent: October 30, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Friedrich Löser, Qinghua Zheng
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Patent number: 8281723Abstract: A vehicle for a rail-borne transportation system includes an eddy current brake that contains a large number of magnetic poles and a mechanism for activating the magnetic poles for braking. The magnetic poles are formed by movably supported permanent magnets, and the activation mechanism switches the permanent magnets from an inactive position into an active position.Type: GrantFiled: March 13, 2008Date of Patent: October 9, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Friedrich Loeser, Qinghua Zheng
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Patent number: 8234981Abstract: A magnetic polar arrangement which is intended for magnetic levitation vehicles is described, the magnetic polar arrangement having at least one magnetic pole (22) with a core (6) which defines a magnetic pole surface (23), and with a winding (5) which is set back with respect to the magnetic pole surface (23) in order to form a free space (24). The magnetic pole (22) is provided with a sensor which contains a sensor head (9a), which is arranged at least partially in the free space (24), and an electronic module (9b). According to the invention the sensor head (9a) is physically separated from the electronic module (9b) and is combined, at least with the core (6), to form a single-piece structural unit which is surrounded by a common anti-corrosion layer (26).Type: GrantFiled: August 13, 2007Date of Patent: August 7, 2012Assignee: Thyssenkrupp Transrapid GmbHInventors: Qinghua Zheng, Jürgen Frantzheld, Friedrich Löser
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Patent number: 8201502Abstract: A magnet pole, for magnetically levitated vehicles, includes a core (10) and a winding provided with winding disks that are arranged axially on top of each other. Both of the disks contain conduction band sections (6a, 6b) that are wound counter to the direction of winding and in several layers about the core (10). The conduction band sections are connected together in an electrically conductive manner by means of a connection part (1) on the core (10) near ends. The connection part (1) is bent in an outward manner on lateral longitudinal edges that are parallel to each other thus forming a curved outlet (12a, 12b).Type: GrantFiled: September 5, 2007Date of Patent: June 19, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Peter Bugiel, Harald Pfannkuch, Wolfgang Hahn, Qinghua Zheng
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Patent number: 8193886Abstract: A reception unit is provided including a receiver coil for the contactless transfer of electric energy. The receiver coil includes a plurality of flux guiding elements (16a, 16b) that are made of a highly permeable material and that are designed to concentrate the field lines. The flux guiding elements (16a, 16b) form a continuous molded part that is embodied in a base body (18) and that is combined with the base body to form a component that can be completely prefabricated. The molded part is produced by casting and the base body (18) is used as a casting mold.Type: GrantFiled: September 4, 2007Date of Patent: June 5, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Wolfgang Hahn, Qinghua Zheng, Andreas Diekmann
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Publication number: 20120126921Abstract: The invention relates to a magnet pole for magnetic levitation vehicles, containing an iron core (1), a coil (6) applied thereon, a rear (4) of a magnet lying against a lower contact surface (3) of the iron core (1), and a protective layer (9) that encases the coil (6) and an upper pole surface (2) of the iron core (1). The protective layer (9) has a section (15) made of an elastic material in a lower region of the iron core (1), said section bordering the circumferential surface (5) of the iron core.Type: ApplicationFiled: July 29, 2010Publication date: May 24, 2012Inventors: Peter Bugiel, Andreas Diekmann, Joachim Kraemer, Daniel Tschada, Qinghua Zheng
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Patent number: 8171859Abstract: A magnetic levitation vehicle has at least one magnetic arrangement (27). The magnetic arrangement (27) contains a plurality of magnetic poles (27a . . . 27n) which are arranged one behind the other in the direction of travel and comprise windings (33) associated therewith. The magnetic levitation vehicle is also provided with a circuit for supplying the windings (33) with a direct current, said circuit containing switches for selectively switching the magnetic arrangement between a guiding function and/or a braking function.Type: GrantFiled: October 12, 2007Date of Patent: May 8, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Friedrich Löser, Qinghua Zheng
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Patent number: 8166884Abstract: A switch assembly for magnetic levitation railways includes a girder extending in a travel direction (x) and flexible transversely to it is provided with travel way or equipment parts. A rail and a rack are located transversely to the travel direction. A load-bearing frame, receiving the girder, has a rotatably supported carrying wheel braced on the rail and a drive mechanism with a gear wheel meshing with the rack and with a motor intended for driving it. Switch adjustment is effected by displacement of the load-bearing frame along the rail by means of the drive mechanism and a thus-effected flexing of the girder. The girder, the load-bearing frame and the drive mechanism form a solidly joined-together structural unit which as a whole is located displaceably in the travel direction (x) relative to the rail and the rack.Type: GrantFiled: January 10, 2007Date of Patent: May 1, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Qinghua Zheng, Friedrich Loeser, Xiufei Liu
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Patent number: 8118266Abstract: An apparatus generates position signals to indicate the position of a rail-bound vehicle along a travel way throughout which travel way many markings are located. The apparatus includes at least one sensor located on the vehicle for scanning the markings and outputting signals and an evaluation unit that is connected to the sensor for generating the position signals by evaluating the signals generated by the sensor by scanning the markings. When the vehicle passes a marking, the sensor outputs a “marking present” signal and otherwise outputs a “marking absent” signal. The vehicle has a receiver of a navigation system that is connected to the evaluation unit and outputs current location signals.Type: GrantFiled: January 10, 2007Date of Patent: February 21, 2012Assignee: ThyssenKrupp Transrapid GmbHInventors: Qinghua Zheng, Juergen Frantzheld