Patents Examined by Moshe Wilensky
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Patent number: 10823186Abstract: A pump bearing retainer (1), for a wet-running pump, includes a radially inner section (3) including an inner section surface (9) for a press-fit contact with an essentially cylinder-shaped radial outer surface (29) of a pump bearing (13). A radially outer section (7) includes an annular or essentially conical-shaped outer section surface (17) with a cone angle (?1) equal to or larger than 45°. An intermediate section (5) extends from the inner section (3) to the outer section (7). The intermediate section (5) includes an essentially conical-shaped intermediate section surface (15) with a cone angle (?2) smaller than 45°. A longitudinal cross-section area (A) of the inner section (3) is smaller than a longitudinal cross-section area (B) of the intermediate section (5).Type: GrantFiled: July 5, 2018Date of Patent: November 3, 2020Assignee: GRUNDFOS HOLDING A/SInventors: Brian Lundsted Poulsen, Anders Bøge Jensen
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Patent number: 10822952Abstract: An assembly according to an exemplary aspect of the present disclosure includes, among other things, a disk, a cover plate providing a cavity at a first axial side of the disk, a passageway including an inlet provided by a notch in at least one of the disk and the cover plate in fluid communication with the cavity, and the passageway extending from the inlet to an exit provided at a second axial side of the disk opposite the first axial side, the exit in fluid communication with the inlet, and the passageway configured to provide fluid flow from the cavity to the exit.Type: GrantFiled: September 17, 2014Date of Patent: November 3, 2020Assignee: Raytheon Technologies CorporationInventors: Jeffrey S. Beattie, Jason D. Himes, Matthew Andrew Hough, Christopher Corcoran
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Patent number: 10815863Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.Type: GrantFiled: September 1, 2017Date of Patent: October 27, 2020Assignee: MAHLE INTERNATIONAL GMBHInventors: Johannes Diekmann, Thorsten Grelle, Michael Krappel, Gunnar Schmitt-Sauter, Benjamin Weimann
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Patent number: 10815972Abstract: A method for assessing or validating wind turbine or wind farm performance produced by one or more upgrades is provided. Measurements of operating data from wind turbines in a wind farm are obtained. Baseline models of performance are generated, and each of the baseline models is developed from a different portion of the operating data. A generating step filters the wind turbines so that they are in a balanced randomized state. An optimal baseline model of performance is selected from the baseline models and the optimal baseline model includes direction. The optimal baseline model of performance and an actual performance of the wind farm or wind turbine is compared. The comparing step determines a difference between an optimal baseline model of power output and an actual power output of the wind farm/turbine. The difference is reflective of a change in the power output produced by the upgrades.Type: GrantFiled: March 22, 2019Date of Patent: October 27, 2020Assignee: General Electric CompanyInventors: Scott Charles Evans, Danian Zheng, Raul Munoz, Samuel Bryan Shartzer, Brian Allen Rittenhouse, Samuel Davoust, Alvaro Enrique Gil, Nurali Virani, Ricardo Zetina
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Patent number: 10813410Abstract: A tunnel spring structure three-dimensionally printed on a base layer. The tunnel spring structure includes three tubular structures and two connecting portions. A connecting portion is disposed between two tubular structures. A tensile strand extends through the tubular structures. Tension applied to the tensile strand forces the tubular structures to adjoin due to the flexibility of the connection portions.Type: GrantFiled: May 10, 2018Date of Patent: October 27, 2020Assignee: NIKE, Inc.Inventors: Stefan E. Guest, Matthew J. Holmes, Yoav Sterman
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Patent number: 10815808Abstract: Embodiments of the invention relate generally to rotary machines and, more particularly, to the cooling of at least portions of a turbine bucket. In one embodiment, the invention provides a method of cooling at least a portion of a turbine bucket, the method comprising: during operation of a turbine, altering a swirl velocity of purge air between a platform lip extending axially from the platform and an angel wing extending axially from a face of a shank portion of the turbine bucket, wherein altering the swirl velocity of the purge air includes interrupting a flow of the purge air with a plurality of turbulators disposed along at least one of a radially inner surface of the platform lip or the face of the shank portion.Type: GrantFiled: July 22, 2016Date of Patent: October 27, 2020Assignee: General Electric CompanyInventors: Rohit Chouhan, Soumyik Kumar Bhaumik
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Patent number: 10815887Abstract: A lubrication system for a gas turbine engine is disclosed. The lubrication system is configured to provide pressurized air and lubricant to a bearing sump of the gas turbine engine to cool and lubricate a bearing included in the bearing sump.Type: GrantFiled: February 5, 2018Date of Patent: October 27, 2020Assignee: Rolls-Royce CorporationInventors: Kerry J. Lighty, Larry A. Junod
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Patent number: 10808613Abstract: Disclosed is an assembly for a gas turbine engine, the assembly includes: a spinner or nosecone comprising a threaded rear portion, an engine structure comprising a threaded front portion, the nosecone being threadingly connected to the engine structure, wherein rotation of the spinner or nosecone about the engine structure in a first direction secures the spinner or nosecone to the engine structure and rotation of the spinner or nosecone about the engine structure in a second direction releases the spinner or nosecone from the engine structure; and a lock ring slidingly connected to the engine structure to slide between: a forward position to engage the spinner or nosecone and block rotation of the spinner or nosecone in the second direction, and a rearward position, where the lock ring is spaced from the spinner or nosecone.Type: GrantFiled: January 9, 2018Date of Patent: October 20, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Anthony R. Bifulco, Joseph M. Wilson, Jason B. Hickman
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Patent number: 10808725Abstract: According to one aspect of the present disclosure, a turbomachine (100) is provided. The turbomachine includes: a rotor extending in an axial direction and comprising a driven side configured to be connected to a driving unit and a second side opposite the driven side; a housing extending around at least a portion of the rotor, wherein a main flow path for a process fluid extends between the rotor and the housing; a sealing arrangement, particularly a dry gas seal, configured for sealing a gap between the rotor and the housing at the driven side of the rotor; and a first magnetic bearing supporting the second side of the rotor. A fluid passage for a portion of the process fluid extends from the main flow path through a bearing gap of the first magnetic bearing. According to a further aspect, a method of operating a turbomachine is described.Type: GrantFiled: February 6, 2018Date of Patent: October 20, 2020Assignee: NUOVO PIGNONE TECNOLOGIE SRLInventors: Matteo Dozzini, Massimiliano Ortiz Neri, Massimiliano Borghetti
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Patent number: 10808565Abstract: In some examples, a system includes a blade including a blade tip and a blade track or blade shroud segment including a substrate and an abradable coating layer on the substrate. The substrate defines a leading edge and a trailing edge. The abradable coating layer includes a first tapered portion that substantially continuously tapers from a center portion of the substrate toward the leading edge of the substrate, a second tapered portion that substantially continuously tapers from the center portion of the substrate toward the trailing edge of the substrate, and a blade rub portion that extends between the first tapered portion and the second tapered portion. The abradable coating extends from the leading edge to the trailing edge, and the blade tip is configured to contact at least a portion of the blade rub portion upon rotation of the blade.Type: GrantFiled: May 22, 2018Date of Patent: October 20, 2020Assignees: Rolls-Royce plc, Rolls-Royce CorporationInventors: Jeffrey Allen Walston, Roy Peter McIntyre, Daniel Kent Vetters
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Patent number: 10808550Abstract: Disclosed is a fan blade for a gas turbine engine, including: an airfoil, a cavity formed in the airfoil, a cover configured to cover the cavity, the cover when secured to the airfoil encloses the cavity in the airfoil, a conduit extending from the cavity to an exterior surface of the fan blade, and a check valve located in the conduit, the check valve configured to regulate an internal pressure of the cavity when the cover is secured to the airfoil.Type: GrantFiled: December 13, 2018Date of Patent: October 20, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Daniel A. Bales, Michael A. Weisse
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Patent number: 10807724Abstract: The electrical machine according to the invention is a dual machine, and comprises a first machine which can be reversed and a second machine functioning through induction between two windings. The second machine can be used for de-icing a propeller, the induction-receiving winding being mounted on the propeller shaft. The first electrical machine can function as an electrical engine to ‘taxi’ the aircraft. In certain embodiments, the winding mounted on the stator is common to the two machines and different magnetic flows are utilised to control them. A separate functioning of the two machines and a very good integration into the aircraft engine, with space-saving and low mass, are possible.Type: GrantFiled: October 2, 2017Date of Patent: October 20, 2020Assignee: SAFRAN HELICOPTER ENGINESInventors: Thomas Klonowski, Olivier Lafargue, Antoine Moutaux, Jean-Julien Camille Vonfelt, Bertrand Nogarede
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Patent number: 10808546Abstract: An airfoil for a gas turbine engine includes an outer airfoil wall that provides an exterior surface and multiple radially extending cooling passages. The exterior surface provides pressure and suctions sides joined by leading and trailing edges. The cooling passages include a supply passage arranged upstream from and in fluid communication with a trailing edge passage. A cooling hole extends through the outer airfoil wall from the supply passage to the exterior surface on the suction side.Type: GrantFiled: March 27, 2019Date of Patent: October 20, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Sarah Riley, Sasha M. Moore, Jeffrey R. Levine
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Patent number: 10808537Abstract: In order to compensate for the increase in a leakage rate of ventilation air originating in a circuit via a labyrinth seal that gradually wears at the bottom of a ventilation chamber, and the reduction of a purge rate via an opening upstream from the chamber, a second injection opening is added to a main injection opening. The second injection opening communicates with the chamber via a second labyrinth seal that wears at the same time as the first, and thus gradually increases the air flow rate passing through the injector in order to compensate for the additional leakage rate through the first injector and maintain the ventilation at its initial level.Type: GrantFiled: January 28, 2019Date of Patent: October 20, 2020Assignee: SAFRAN AIRCRAFT ENGINESInventors: Mathieu Jean Pierre Trohel, Paco Maurer
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Patent number: 10808721Abstract: An intake structure of a compressor includes an intake duct forming an intake port opening in a direction away from a central axis of the compressor and a bellmouth forming an annular channel expanding from an inlet of the compressor toward an inner space of the intake duct. The bellmouth includes a plurality of struts connecting an inner casing positioned inside the annular channel and an outer casing positioned outside the annular channel. At least one of a plurality of transverse struts, of the plurality of struts, which are located on both sides of a center plane passing through the central axis of the compressor and the center of the intake port has a trailing edge positioned on a virtual plane passing through the central axis of the compressor and a leading edge positioned on a side of the intake port with respect to the virtual plane.Type: GrantFiled: October 7, 2016Date of Patent: October 20, 2020Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takuya Ikeguchi, Koji Terauchi, Keiji Oikaze, Naoto Sakai, Kazuhiko Tanimura
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Patent number: 10808703Abstract: A multistage centrifugal pump has a foot part (2) and a head part (9), between which pump stages are integrated. The head part (9) and the foot part (2) are connected via tie-rods (11) which with one end are fastened on the head part (9) and with the other end are fastened on the foot part (2). The tie-rods (11) at one end comprise a thread (14), with which they are tightened on the head part (9). The tie-rods (11) are formed from sheet metal. At the end opposite the thread, the tie-rods include a recess, with which recess the tie-rods are each positively fixed on the foot part (2), at least in the tensile direction (22).Type: GrantFiled: December 7, 2016Date of Patent: October 20, 2020Assignee: GRUNDFOS HOLDING A/SInventors: Steen Mikkelsen, Niels Due Jensen, Brian Lundsted Poulsen
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Patent number: 10801327Abstract: A turbine blade for a gas turbine engine is disclosed. The turbine blade includes an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an exterior airfoil surface extending from a platform in a radial direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location, wherein the local axial chord corresponds to a width of the airfoil between the leading and trailing edges at the span location.Type: GrantFiled: January 21, 2019Date of Patent: October 13, 2020Assignee: Raytheon Technologies CorporationInventor: Kevin K. Song
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Patent number: 10801505Abstract: A centrifugal compressor according to the present invention includes, as gas flow paths, diffuser flow paths into which process gas flowing from impellers to outside in a radial direction flows, curved flow paths that respectively communicate with the diffuser flow paths and change a flowing direction of the process gas from a direction toward the outside in the radial direction to a direction toward inside in the radial direction, and return flow paths that respectively communicate with the curved flow paths and cause the process gas flowing through the curved flow paths to flow into the impellers. In the present invention, the curved flow path configuring at least one of the gas flow paths is provided between a diaphragm and a flow path forming body that is provided between the diaphragm and the casing.Type: GrantFiled: December 8, 2016Date of Patent: October 13, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Kazutoshi Yoko, Shin Yanagisawa, Eiichi Yanagisawa, Akihiro Nakaniwa, Daisuke Hirata, Takanori Matsueda
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Patent number: 10794207Abstract: A gas turbine engine component array includes first and second components each having a platform. The platforms are arranged adjacent to one another and provide a gap. A seal is arranged circumferentially between the first and second components and in engagement with the platforms to obstruct the gap. A cooling hole is provided in the seal and is in fluid communication with the gap. The cooling hole has an increasing taper toward the gap.Type: GrantFiled: September 11, 2014Date of Patent: October 6, 2020Assignee: RATHEON TECHNOLOGIES CORPORATIONInventor: Matthew Andrew Hough
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Patent number: 10794399Abstract: A fan blade structure of a convection fan includes a fan blade body. The fan blade body includes a central disk secured to the rotating shaft of the motor and multiple blades evenly distributed in a circumferential direction of the central disk. The fan blade body further includes an outer edge frame, the outer edge frame is connected to an outmost side of each of the blades in a radial direction of the central disk. The outer edge frame is connected to an outmost side of the blade in the radial direction of the central disk through the outer edge frame, which makes all the outmost sides of all the blades secured to the outer edge frame, thus the stability of the blade is strengthened, blade deformation in harsh environments is avoided, thereby the balance performance of the fan blade is improved, and the vibration or noise is reduced.Type: GrantFiled: August 21, 2018Date of Patent: October 6, 2020Assignees: WOLONG ELECTRIC GROUP CO., LTD, WOLONG ELECTRIC (JI NAN) MOTOR CO., LTDInventors: Cunling Wang, Xiaofei Liu, Liuxi Zhou
