Including Shaft Transmission Train, Brake, Clutch, Or Attendant Actuated Drive Means Patents (Class 415/122.1)
  • Patent number: 10851638
    Abstract: A system for stimulating oil or gas production from a wellbore includes a hydraulic fracturing pump unit having one or more hydraulic fracturing pumps driven by one or more electrical fracturing motors, a variable frequency drive (VFD) controlling the electrical fracturing motors, a fracturing pump blower unit driven by a blower motor, and a fracturing pump lubrication unit having a lubrication pump driven by a lubrication motor and a cooling fan driven by a cooling motor. The system may further include a blender unit and a hydration unit. A system control unit may control the operational parameters of the system.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: December 1, 2020
    Assignee: STEWART & STEVENSON LLC
    Inventors: Mark Payne, Haomin Lin, Tom Robertson
  • Patent number: 10830154
    Abstract: A gas turbine engine includes: an engine core with a turbine, compressor, and core shaft; a fan upstream the engine core; a gearbox that can receive an input from the core shaft and output drive to a fan shaft to drive the fan at a lower rotational speed than the core shaft. A fan-gearbox axial distance is greater than or equal to 0.35 m. The fan shaft has: (i) a radial bending stiffness ratio of a radial bending stiffness of the fan shaft at the fan input to a radial bending stiffness of the fan shaft at the gearbox output that is greater than or equal to 6.0×10?3; and/or (ii) a tilt stiffness ratio of a tilt stiffness of the fan shaft at the fan input to a tilt stiffness of the fan shaft at the gearbox output that is greater than or equal to 2.5×10?2.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 10, 2020
    Assignee: ROLLS-ROYCE plc
    Inventor: Mark Spruce
  • Patent number: 10823004
    Abstract: A geared turbofan engine that has a planetary gearbox which couples a fan shaft and a turbine shaft to each other. The planetary gearbox includes a sun gear that is driven by the turbine shaft. The turbine shaft and the sun gear form a spline shaft connection that is lubricated with oil. Sealing means are provided, sealing off the oil in the toothing area of the spline shaft connection. The sealing means have an elastic sealing ring that has a variable diameter and is springing outwards, and that is arranged inside a groove extending in the circumferential direction of the turbine shaft, wherein the sealing ring abuts at an inner circumferential surface of the sun gear with its radially outer circumferential surface. In further aspects, the invention relates to a method for mounting a planetary gearbox on a turbine shaft and to a spline arrangement.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 3, 2020
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Christos Kallianteris, Andreas Becker
  • Patent number: 10823006
    Abstract: A turbofan engine includes a first spool including a first turbine, a second spool including a second turbine, and a fan. A fan drive gear system drives the fan. A first tower shaft engages the first spool, and a second tower shaft engages the second spool. A superposition gear system includes intermediate gears engaged to the sun gear and supported in a carrier and a ring gear circumscribing the intermediate gears. The first tower shaft drives the sun gear. A main oil pump is driven by the carrier and supplies oil to the fan drive gear system. An auxiliary oil pump supplies oil to the fan drive gear system and is driven by a ring gear shaft coupled to the ring gear. A shuttle valve selectively allows oil to be supplied to the fan drive gear system by one of the main oil pump and the auxiliary oil pump.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: November 3, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Nicholas D. Leque, Joseph H. Polly
  • Patent number: 10823084
    Abstract: An engine for an aircraft includes an engine core having a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan having a plurality of fan blades; a fan shaft; a gearbox that receives an input from the core shaft and outputs drive to the fan via the fan shaft so as to drive the fan at a lower rotational speed than the core shaft, the gearbox being an epicyclic gearbox having a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted; and a gearbox support arranged to mount the gearbox within the engine. The fan shaft, core shaft, gearbox and the gearbox support together may form a transmission.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 3, 2020
    Assignee: ROLLS-ROYCE plc
    Inventor: Mark Spruce
  • Patent number: 10815901
    Abstract: A gas turbine engine for an aircraft has an engine core having a turbine, compressor, and core shaft connecting the turbine and compressor; a fan upstream the engine core, the fan having fan blades; and a gearbox. The gearbox receives an input from a core shaft and outputs drive to a fan to drive the fan at a lower rotational speed than the core shaft. The gearbox is an epicyclic gearbox and has a sun gear, planet gears, ring gear, and planet carrier on which the planet gears are mounted. The gearbox has a gear mesh stiffness between the planet gears and the ring gear and a gear mesh stiffness between the planet gears and the sun gear. The gear mesh stiffness between the planet gears and the ring gear divided by that between the planet gears and the sun gear is in the range from 0.90 to 1.28.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 27, 2020
    Assignee: ROLLS-ROYCE plc
    Inventor: Mark Spruce
  • Patent number: 10655435
    Abstract: A hydraulic fracturing system includes a plurality of pumps positioned at a wellsite and configured to pressurize a fracturing fluid, a distribution system fluidly coupled to receive and consolidate fracturing fluid from the plurality of pumps for injection into a wellhead. The hydraulic fracturing system further includes a control system, which includes a plurality of sensing devices configured to measure one or more parameters of the plurality of pumps and the distribution system, one or more processing device configured to receive and analyze the one or more parameters measured by the plurality of sensing devices and generate control instructions based at least in part on the one or more parameters, and one or more control device configured 110 to receive the control instructions and control one or more aspects of the plurality of pumps or the distribution system based on the control instructions.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: May 19, 2020
    Assignee: U.S. Well Services, LLC
    Inventors: Jared Oehring, Alexander James Christinzio, Brandon N. Hinderliter
  • Patent number: 10519975
    Abstract: Compressor stage with a stator-side intake connection piece via which medium which is to be compressed can be introduced into the compressor stage in the region of the compressor stage, with a stator-side inflow channel via which the medium to be compressed can be conveyed in direction of a rotor-side impeller proceeding from the intake connection piece, wherein the impeller has a radially inner hub, a radially outer cover disk and impeller blades extending between the hub and the cover disk, wherein a plus measuring point and a minus measuring point are provided at the compressor stage for measuring the effective pressure at the compressor stage, and wherein the minus measuring point is positioned upstream of the impeller outside of the stator-side inflow channel in an annular gap which branches off from the inflow channel.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 31, 2019
    Assignee: MAN Energy Solutions SE
    Inventors: Alf-Peter Tiedtke, Matthias Wollnik
  • Patent number: 10487734
    Abstract: A gas turbine engine includes a fan, a compressor section, and a turbine section configured to drive the compressor section and the fan. A buffer system is configured to communicate a buffer supply air to a portion of the gas turbine engine. The buffer system includes a first bleed air supply having a first pressure, a second bleed air supply having a second pressure that is greater than the first pressure, and an ejector that selectively augments the first bleed air supply to prepare the buffer supply air for communication to the portion of the gas turbine engine. A method and a buffer system are also disclosed.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 26, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Peter M. Munsell, Philip S. Stripinis
  • Patent number: 10480417
    Abstract: An air turbine starter device comprises a rotor arranged in a cavity of a housing, a first manifold having a cavity with a port operative to direct compressed air to the rotor, a second manifold having a cavity with a port operative to direct compressed air to the rotor, wherein the first manifold is larger than the second manifold.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: November 19, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Keith E. Short, Daniel Richard Walker
  • Patent number: 10300231
    Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 28, 2019
    Assignee: ResMed Limited
    Inventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Nicholas Jerome Reed
  • Patent number: 10246984
    Abstract: A system for stimulating oil or gas production from a wellbore includes a hydraulic fracturing pump unit having one or more hydraulic fracturing pumps driven by one or more electrical fracturing motors, a variable frequency drive (VFD) controlling the electrical fracturing motors, a fracturing pump blower unit driven by a blower motor, and a fracturing pump lubrication unit having a lubrication pump driven by a lubrication motor and a cooling fan driven by a cooling motor. The system may further include a blender unit and a hydration unit. A system control unit may control the operational parameters of the system.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 2, 2019
    Inventors: Mark Payne, Haomin Lin, Tom Robertson
  • Patent number: 10199976
    Abstract: Systems and methods are disclosed for manipulating the noise and vibration of a switched reluctance machine (SRM). By use of vibration sensors and real-time optimization methods, the noise and vibration profile of an SRM and associated load may be modified to meet one or more control objectives, such as torque ripple mitigation (TRM), harmonic spectrum shaping, and/or efficiency improvement.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 5, 2019
    Assignee: Continuous Solutions LLC
    Inventors: Nir Vaks, Nyah Zarate, Xiaoqi Wang
  • Patent number: 10100837
    Abstract: An integral transmission; comprising a driving gear connected to a driving shaft for co-joint rotation, a large gear engaging with the driving gear, a first driven gear engaging with the large gear, and at least one additional driven gear which engages with the driving gear; wherein an axis of rotation of the driving gear and an axis of rotation of the first driven gear engaging with the large gear are arranged in a plane of alignment, an axis of rotation of the large gear is offset in the vertical direction with respect to the plane of alignment, and an axis of rotation of the at least one additional driven gear engaging with the driving gear is located in the plane of alignment. A geared compressor system; comprising the integral transmission and a drive unit.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 16, 2018
    Assignee: Voith Patent GmbH
    Inventors: Ulrich Kempter, Jens Kunze, Thomas Horn, Michael Schmid
  • Patent number: 10094278
    Abstract: A turbofan engine (20) comprises a fan (28). A fan drive gear system (60) is configured to drive the fan. A low spool comprises a low pressure turbine (50) and a low shaft (56) coupling the low pressure turbine to the fan drive gear system. An intermediate spool comprises an intermediate pressure turbine (48), a compressor (42), and an intermediate spool shaft (54) coupling the intermediate pressure turbine to the intermediate spool compressor. A combustor (45) is between a core spool compressor (44) and a high pressure turbine (46). A first (160) main bearing engages a static support (164; 164?) and a forward hub (236) of the intermediate spool. A second (162) main bearing engages the low shaft and the forward hub.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 9, 2018
    Assignee: United Technologies Corporation
    Inventors: William G. Sheridan, Frederick M. Schwarz, Gabriel L. Suciu
  • Patent number: 10077716
    Abstract: The present disclosure relates generally a system for preventing relative rotation between three components. The three components include tabs and slots such that at least one first tab and at least one second tab on one component is disposed within at least one slot formed in the other two components to prevent relative rotation between any two of the three components.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: September 18, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Christopher T. Anglin, Yuk-Kwan Brian Yuen, Russell B. Witlicki, Dwayne E. Messerschmidt
  • Patent number: 9976443
    Abstract: A method for assembling a turbofan engine (20) comprises coupling a bearing assembly (176) and a shaft (420) as a unit to a bearing support (453). A transmission (46) and the fan shaft (132) are installed to a front frame assembly (172). The bearing assembly and shaft are installed as a unit so that the shaft engages a central gear (52) of the transmission and the bearing support engages the front frame assembly.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 22, 2018
    Assignee: United Technologies Corporation
    Inventors: James B. Coffin, Alessio Pescosolido
  • Patent number: 9951695
    Abstract: Gas turbine engines including multi-axis accessory gearboxes of mechanical drive systems are provided. The gearbox comprises a housing, a drive shaft, bevel pinion and drive shaft bevel gears, and a side bevel gear set operable to directly at least one side accessory device. Housing is disposed about a towershaft operatively coupled to main engine shaft and operable to rotate about a first axis. Drive shaft is skewed to main shaft and operable to rotate about a second axis that intersects the first axis at a first angle. Bevel pinion gear is mounted on the towershaft. Drive shaft bevel gear is mounted on the drive shaft. Side bevel gear set comprises an input gear meshing with one or more side bevel gears each having a side bevel gear axis at a second angle to the first axis and independently positionable relative to input gear. Second angle is independent of other angles.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 24, 2018
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Tomasz Dobosz, Shawn Alstad
  • Patent number: 9897068
    Abstract: The invention relates to a method for mounting a rotor blade with a rotor blade shell and an internal space defined by the rotor blade shell, by at least one rotor blade clamp being applied around the outside of the rotor blade shell, by means of which at least one clamping force is exerted from the outside to the rotor blade shell, directed into the internal space by at least one expansion device being introduced into the internal space, by the expansion device inside the internal space being moved into at least one segment of the rotor blade around which the at least one rotor blade clamp is applied, by the at least one expansion device being expanded inside the at least one segment until at least one outwardly-acting counteracting force is exerted from the inside on the rotor blade shell.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: February 20, 2018
    Assignee: Senvion SE
    Inventor: Urs Bendel
  • Patent number: 9897102
    Abstract: A structure improvement of a pump casing with a Polyfluoroalkoxy (PFA) liner which improves manufacturing efficiency, reduces manufacturing cost and improves yield strength, more particular to keep the stiffness of the shaft support and improve yield of the pump casing. The metal pump casing with the PFA liner used for handling corrosive liquids includes a suction casing with PFA liner, and a volute casing with PFA liner for accommodating an impeller. The volute casing also collects and then ejects the liquid through a discharge. The suction casing with the PFA liner and the volute casing with the PFA liner are separately formed as two workpieces by injection molding process and then assembled to form the pump casing so as to reduce the residual stress applied in the PFA liner.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 20, 2018
    Assignee: ASSOMA INC.
    Inventors: Chin-Cheng Wang, Chih-Hsien Shih, Chih-Kuan Shih, Yu-Lun Jhang, Huan-Jan Chien, Shu-Yen Chien
  • Patent number: 9879771
    Abstract: Disclosed herein are a shaft assembly having a dry well and a gearbox incorporating the shaft assembly. The shaft assembly may include a housing having an opening and a lubricant reservoir. A tubular member may be fixed in the opening and extend above a surface of lubricant that collects in the lubricant reservoir during operation. At least one sealing member may be positioned between the tubular member and an inner wall defining the opening. A solid shaft may extend through the tubular member and have an outer diameter that is smaller than an inner diameter of the tubular member, thereby defining a dry well between the solid shaft and the tubular member. A bearing mount may be arranged about the tubular member and may be removably connected to a gear associated with the solid shaft. A method of assembling a gearbox incorporating the shaft assembly is also disclosed.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 30, 2018
    Assignee: AMARILLO GEAR COMPANY LLC
    Inventor: John S. Campbell
  • Patent number: 9863326
    Abstract: A gas turbine engine includes a fan shaft arranged along an engine central axis, a frame supporting the fan shaft, a gear system rotatably coupled with the fan shaft, and a flexible coupling at least partially supporting the gear system. The flexible coupling defines, with respect to the engine central axis, a torsional stiffness TS and a lateral stiffness LS such that a ratio of TS/LS is greater than or equal to about 2.0 to reduce loads on the gear system from misalignment of the gear system with respect to the engine central axis.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: January 9, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: William G. Sheridan, John R. Otto
  • Patent number: 9863396
    Abstract: Examples of the present disclosure are related to systems and methods for utilizing effluent pipeline to generate energy. More particularly, embodiments disclose positioning a turbine within a bypass pipeline, wherein the bypass pipeline has a greater diameter than the effluent pipeline.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: January 9, 2018
    Inventor: Gary Joseph Oncale
  • Patent number: 9836066
    Abstract: In hydraulic systems having rotating-stationary component interfaces, a bore pressure regulating mechanism is provided to interact with the hydraulic fluid in a control volume to maintain a hydraulic fluid pressure in a longitudinal shaft bore at or approximately equal to a supply pressure when a gear shaft rotates within the control volume. In one aspect, the bore pressure regulating mechanism minimizes vortex flow of the hydraulic fluid induced by the rotation of the gear shaft. In another aspect, the bore pressure regulating mechanism provides a direct feed of pressurized hydraulic fluid proximate an opening of the longitudinal shaft bore through an end surface of the gear shaft, and thereby minimizes the opportunity for the hydraulic fluid to be forced into vortex flow by the gear shaft in the area of the longitudinal shaft bore.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: December 5, 2017
    Assignee: Caterpillar Inc.
    Inventors: Brian James Williams, Mark Allen Batdorff, Timothy Lorentz, Jay Robert Steffen
  • Patent number: 9803739
    Abstract: A system for adjusting and/or restraining a gearbox of a wind turbine includes a base component fixed to the gearbox and a vertical displacement device configured atop the base component. As such, the vertical displacement device is configured to apply a force to the base component. Accordingly, by lifting the vertical displacement device, a downward vertical force is applied to the base component so as to adjust (i.e. lower) the gearbox.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: October 31, 2017
    Assignee: General Electric Company
    Inventors: Richard Arland Ohl, Jr., Gregory Clarence Thomas
  • Patent number: 9752584
    Abstract: A compressor arrangement has a common shaft, an axial compressor having at least a single-stage, and a radial compressor having at least single-stage. Assemblies of the, or each, axial compressor stage on the rotor side and assemblies of the, or each, radial compressor stage on the rotor side are attached to a common shaft (4). A ratio between a maximum diameter of the shaft (4) in the region of the axial compressor (2) and a minimum radial impeller seat diameter of the shaft (4) in the region of the radial compressor (3) is between 1.5 and 3.0.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 5, 2017
    Assignee: MAN Diesel & Turbo SE
    Inventors: Klaus Hörmeyer, Roland Emmrich, Bernhard Eisenberg, Dirk Anding, Henning Ressing
  • Patent number: 9593694
    Abstract: A pump including an outer housing having an outlet chamber with an outlet connector, and including a first part pump and a second part pump connected thereafter, with the first and second part pumps being arranged in the outer housing, a separating element which can be arranged between the first and second part pumps and a rotor shaft which is rotatably arranged in the first and second part pumps. In accordance with the invention, the outer housing, the first part pump and the separating element bound a first pressure chamber and the outer housing, the second part pump and the separating element bound a second pressure chamber and the first and second pressure chambers are designed and arranged such that the outlet chamber is formed as a single high-pressure region of the pump.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 14, 2017
    Assignee: Sulzer Management AG
    Inventors: Thomas Welschinger, Marcelo Inforsati
  • Patent number: 9593664
    Abstract: An electrical power generating system is connected to a sewer for conveying waste water to a sanitary treatment station. Waste water is propelled through the sewer line by pumping equipment which simultaneously pulverizes most large objects carried by the waste water. The waste water drives one or more water-operated turbines. The turbines are operatively connected to electrical power generators for producing electrical power and dispersing the power through an electrical power transmission system.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 14, 2017
    Inventor: Jeffrey L. Cripps
  • Patent number: 9523422
    Abstract: A geared architecture for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan shaft and a frame which supports the fan shaft, the frame defines a frame stiffness. A plurality of gears drives the fan shaft. A flexible support at least partially supports the plurality of gears, the flexible support defines a flexible support stiffness that is less than the frame stiffness. An input coupling to the plurality of gears, the input coupling defines an input coupling stiffness with respect to the frame stiffness.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: December 20, 2016
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Michael E. McCune, Jason Husband
  • Patent number: 9512849
    Abstract: A multi-stage integrally geared compressor includes a first process stage, a second process stage and a gearbox for coupling the two process stages to each other at different rotational speeds. The gearbox further couples a compressor drive shaft to the two process stages at a further rotational speed, which is different from the rotational speeds of the process stages.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 6, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Dieter Naβ, Lars Schlüter
  • Patent number: 9494331
    Abstract: A ventilation system (1) for air ventilation is disclosed, comprising a continuous duct (5) having openings at both ends, an air flow generator (2) arranged inside the duct to be rotatable around an axis of rotation so that, positioned in different rotational positions, the air flow generator is capable of producing a substantially axial air flow in each of the two directions through the duct, respectively, one or more registers arranged to be moveable between different positions, in at least one of which positions the one or more registers (6) leave the duct (5) open for air passage, whereas in another of the positions the one or more registers (6) substantially block the air passage through the duct (5), means for rotating the air flow generator (2), and means for moving the one or more registers. Furthermore, methods for controlled active and passive ventilation, respectively, through the duct of such a ventilation system (1) are disclosed.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: November 15, 2016
    Assignee: InVentilate Holdings ApS
    Inventor: John Borsting Jensen
  • Patent number: 9470244
    Abstract: The inner wall surfaces on the discharge sides of a cooling area have arc-like curved surfaces. The curvature of upper-side inner wall surfaces above a boundary part and the curvature of lower-side inner wall surfaces below the boundary part are set to be different from one another, the boundary part being located above the center line of cooling devices.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: October 18, 2016
    Assignee: IHI Corporation
    Inventors: Yoshiki Kato, Atsushi Minegishi, Toshimichi Taketomi
  • Patent number: 9297429
    Abstract: A torque converter, including: a cover; an impeller shell; a turbine shell; a turbine clutch formed by the turbine and impeller shells; and a stator formed of a single piece of material and including a protrusion extending in an axial direction and having a radial surface. In a drive mode: the cover transmits torque to the impeller shell; the turbine clutch is open; the radial surface forms an entirety of a portion of the stator closest, in the axial direction from the stator toward the turbine shell, to the turbine shell; and the radial surface is free of contact with the turbine shell. In a coast mode for the torque converter, at least a portion of the radial surface is in contact with the turbine shell or is separated from the turbine shell by a layer of fluid in contact with the radial surface and the turbine shell.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 29, 2016
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Patrick M. Lindemann, Markus Steinberger, John Carrier
  • Patent number: 9222417
    Abstract: A gas turbine engine includes a combustor. A turbine section is in fluid communication with the combustor. The turbine section includes a fan drive turbine and a second turbine. The fan drive turbine includes a plurality of turbine rotors. A fan includes a plurality of blades rotatable about an axis and a ratio between the number of fan blades and the number of fan drive turbine rotors is between about 2.5 and about 8.5. A speed change system is driven by the fan drive turbine for rotating the fan about the axis. The fan drive turbine has a first exit area at a first exit point and rotates at a first speed. The second turbine section has a second exit area at a second exit point and rotates at a second speed, which is faster than the first speed. A first performance quantity is defined as the product of the first speed squared and the first area. A second performance quantity is defined as the product of the second speed squared and the second area.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: December 29, 2015
    Assignee: United Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Frederick M. Schwarz
  • Patent number: 9133729
    Abstract: A gas turbine engine includes a flex mount for a Fan Drive Gear System defined by a lateral and transverse stiffness relatonship.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: September 15, 2015
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Michael E. McCune, Jason Husband
  • Patent number: 9121367
    Abstract: A gas turbine engine has a fan section, a gear arrangement configured to drive the fan section, a compressor section, including both a low pressure compressor section and a high pressure compressor section. A turbine section is configured to drive the compressor section and the gear arrangement. An overall pressure ratio provided by the combination of a pressure ratio across the low pressure compressor section and a pressure ratio across the high pressure compressor section is greater than about 35. The pressure ratio across a first of the low and high pressure compressor sections is between about 3 and about 8. The pressure ratio across a second of the low and high pressure compressor sections is between about 7 and about 15. The fan is configured to deliver a portion of air into the compressor section, and a portion of air into a bypass duct.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: September 1, 2015
    Assignee: United Technologies Corporation
    Inventors: Hasel Karl, Joseph B. Staubach, Brian D. Merry, Gabriel L. Suciu, Christopher M. Dye
  • Patent number: 9028200
    Abstract: A gas turbine engine includes a shaft defining an axis of rotation. An outer turbine rotor directly drives the shaft and includes an outer set of blades. An inner turbine rotor has an inner set of blades interspersed with the outer set of blades. The inner turbine rotor is configured to rotate in an opposite direction about the axis of rotation from the outer turbine rotor. A splitter gear system couples the inner turbine rotor to the shaft and is configured to rotate the inner set of blades at a faster speed than the outer set of blades.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 12, 2015
    Assignee: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Brian D. Merry, Michael E. McCune, Shankar S. Magge
  • Patent number: 9028201
    Abstract: An off axis hydraulic pump for an automatic motor vehicle transmission includes an integrated chain and sprocket assembly. A first, chain drive sprocket is mounted on a shaft driven by an input to a torque converter and a second, driven chain sprocket is attached to a stub shaft which drives the pump. A multi-link chain encircles the sprockets and transfers drive torque from the torque converter input to the stub shaft. The first, chain drive sprocket is retained on the input shaft by a retainer cap which includes seals between both the shaft and a torque converter housing. The second, driven chain sprocket is retained on the stub shaft by a snap ring or similar component.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: May 12, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventors: Bruce Kevin Pummell, Richard F. Olenzek, David M. Woodard, Moo Ho Chung, Keith Hayen
  • Publication number: 20150125269
    Abstract: A device for coupling two shafts by a gear mechanism includes a coupling part ending one of the two shafts. The coupling part is fitted concentrically into a complementary coupling part ending the other shaft. Splines of the coupling part have a constant profile along a median zone of the coupling part and which, in a first zone in continuation of the median zone, has a smaller thickness, between flanks of a spline, than a maximum thickness of the same spline in the median zone. Splines of the coupling part continue, beyond the first zone, as far as a centering zone on the same side as the first zone. The splines and the spline bottoms have, in the coupling zone between the centering zone and the first zone, a profile that continuously couples the splines and the spline bottoms to the surface of the centering zone.
    Type: Application
    Filed: April 12, 2013
    Publication date: May 7, 2015
    Applicant: SNECMA
    Inventors: Stephane Bois, Guillaume Patin
  • Publication number: 20150118016
    Abstract: Embodiments of the present application include a gas turbine assembly. The gas turbine assembly may include a solid wheel, a turbine aft shaft, and an aft joint connecting the solid wheel to the turbine aft shaft. The turbine assembly also may include a cover plate positioned between the solid wheel and the turbine aft shaft. The cover plate may be configured to direct a flow of compressor extraction fluid inboard through the aft joint and out the turbine aft shaft.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Scott Jacob Huth, Michael James Fedor
  • Publication number: 20150118025
    Abstract: An impeller for pressurizing an intake air of an engine is provided on a left side end portion in a supercharger rotary shaft of the supercharger. The power from the engine is transmitted to a second sprocket, which is provided on a right side end portion of an input shaft of a speed increaser, through a chain to thereby allow the supercharger to drive. The second sprocket is removably fitted to the input shaft by means of a bolt. The supercharger rotary shaft, the input shaft, the second sprocket and the bolt are all accommodated in a supercharger casing. The supercharger casing has a right side end face formed with an access opening through which access can be made to the second sprocket and the bolt from an axial direction.
    Type: Application
    Filed: January 7, 2015
    Publication date: April 30, 2015
    Inventors: Shohei Naruoka, Hisatoyo Arima, Yoshiharu Matsuda
  • Publication number: 20150118062
    Abstract: An assembly for use in a turbine engine is provided. The assembly includes a first bucket, a second bucket circumferentially adjacent to the first bucket, a shroud extending between the first and second buckets, and an aerodynamic shell substantially encircling the shroud such that a cavity is formed between the aerodynamic shell and the shroud.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Sylvain Pierre, Holly Davis Brown
  • Publication number: 20150110605
    Abstract: In one embodiment, a marine current power generation device has rotary blades, rotating shaft, power generator, guide bearings, thrust collars and thrust bearings. The guide bearing has a second slide surface being slidable relative to the first slide surface of the rotating shaft. The thrust bearing has a fourth slide surface being slidable relative to the third slide surface of the rotary plate of the thrust collar. The materials of the first and third slide surfaces include ferrous materials, stainless materials, Ti, Ti alloy, Co, or Co alloy. The materials of the second and fourth slide surfaces include a resin material filled with a first fibrous member and a second fibrous member. The second fibrous member is smaller than the first fibrous member.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 23, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Than Trong LONG, Tatsuo Yamashita, Yasuo Kabata
  • Patent number: 9004849
    Abstract: A gas turbine engine includes a bearing structure mounted to the front center body case structure to rotationally support a shaft driven by a geared architecture. A bearing compartment passage structure is in communication with the bearing structure through a front center body case structure.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: April 14, 2015
    Assignee: United Technologies Corporation
    Inventors: Peter M. Munsell, Philip S. Stripinis
  • Publication number: 20150098802
    Abstract: Shrouded turbine blisks and methods of manufacturing same are provided. A shrouded turbine blisk includes a central disk portion including an axis of rotation, an inner rim, a plurality of airfoils that extends radially outwardly from the inner rim; and a shroud integrally coupled to each of the plurality of airfoils. The shroud includes a plurality of circumferentially-arranged arcuate shroud segments defined at least in part by gaps positioned between adjacent shroud segments. The central disk portion, the inner rim, the plurality of airfoils, and the shroud are defined from a single billet of blisk material.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: General Electric Company
    Inventors: Thomas Joseph Farineau, Robin Carl Schwant, Ganesh Krishnamoorthy, Rajiv Sampath
  • Patent number: 8998569
    Abstract: A gas turbine engine includes a gas turbine engine internal compartment structure having an integral passageway. Wiring is routed through the integral passageway of the gas turbine engine internal compartment structure.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 7, 2015
    Assignee: United Technologies Corporation
    Inventor: Russell B. Witlicki
  • Publication number: 20150086330
    Abstract: A turbine system is provided having a first turbine casing and a second turbine casing, the first and second turbine casings together defining an inner wall. The turbine system further includes a first attachment flange extending from a surface of the first turbine casing within the inner wall and a second attachment flange extending from a surface of the second turbine casing within the inner wall. The first attachment flange defines a first aperture and the second attachment flange defines a second aperture. A pin extends through the first aperture and into the second aperture.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 26, 2015
    Applicant: General Electric Company
    Inventors: Khoa Dang Cao, Kenneth Damon Black
  • Patent number: 8967950
    Abstract: A turbine driving a planet gear and an epicyclic gear train and including a planet pinion cage and a ring driving two propellers in rotation, is connected to the planet gear through a flexible sleeve surrounding a turbine support shaft rather than through a support shaft itself to achieve a flexible assembly with a limit stop position in contact with the shaft to limit parasite internal forces applied to the epicyclic gear train without tolerating a loose assembly or breakage of the sleeve due to a condition of the limit stop after a clearance has been eliminated.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: March 3, 2015
    Assignee: SNECMA
    Inventors: Gilles Alain Charier, Francois Gallet
  • Patent number: 8961112
    Abstract: A fan drive gear system for a gas turbine engine includes a carrier that supports circumferentially arranged gears. A torque frame has circumferentially arranged fingers with each finger including a bore having a bore axis. A bushing is arranged in each bore and provides an aperture. At least one bushing has a bushing axis offset from the bore axis. A pin is disposed in the aperture and secures the carrier to the torque frame.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 24, 2015
    Assignee: United Technologies Corporation
    Inventors: James B. Coffin, Richard E. Domonkos, Sunil Sharma
  • Fan
    Patent number: 8961109
    Abstract: A fan includes a frame, rotor supported by this frame and having a central hub and a number of blades and a drive mechanism for rotatably driving the rotor, in addition to a ring to which the end zones of the blades are connected. The ring is assembled from two part-rings of the same form which each include a circular strip of sheet material, the free ends of which are mutually connected to form the outer surface of a truncated cone, and a third part-ring which mutually connects the inner edges of the first two part-rings. The end zones of the blades are connected to the third part-ring. The ring has a diameter of more than about 1.50 m. The number of blades amounts to at least eight. The blades are hollow and include a framework structure which is provided with a skin connected thereto.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: February 24, 2015
    Assignee: Bronswerk Heat Transfer B.V.
    Inventor: Augustinus Wilhelmus Maria Bertels