Patents by Inventor Norman Arnold Turnquist

Norman Arnold Turnquist 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).

  • Publication number: 20140064909
    Abstract: A labyrinth seal design, an actuation control clearance strategy, and a method of operating a turbomachine. The labyrinth seal design including a plurality of features configured to open and close radial clearances in response to relative axial movement between a stationary component and a rotating component. The actuation control clearance strategy and method of operating a turbomachine effective to achieve relative motion between a rotating component and a stationary component of the turbomachine using active elements. Axial displacement of the rotating component relative to the stationary component provides an adjustment in a radial clearance at one or more sealing locations between the rotating component and the stationary component to suit a given operating condition of the turbomachine.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Deepak Trivedi, Norman Arnold Turnquist, Xiaoqing Zheng, Murat Inalpolat
  • Publication number: 20140001893
    Abstract: An electric machine is presented. The electric machine includes a hollow rotor; and a stator disposed within the hollow rotor, the stator defining a flow channel. The hollow rotor includes a first end portion defining a fluid inlet, a second end portion defining a fluid outlet; the fluid inlet, the fluid outlet, and the flow channel of the stator being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel; and wherein the hollow rotor is characterized by a largest cross-sectional area of hollow rotor, and wherein the flow channel is characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least about 25% of the largest cross-sectional area of the hollow rotor. An electric fluid pump and a power generation system are also presented.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jeremy Daniel Van Dam, Norman Arnold Turnquist, Tsarafidy Raminosoa, Manoj Ramprasad Shah, Xiaochun Shen
  • Publication number: 20130221620
    Abstract: A seal assembly for a turbomachine includes a seal ring rotatable between a first position and a second position and having a plurality of tunnels. Also included is a back ring located adjacent the seal ring and having a plurality of apertures that align with more of the plurality of tunnels of the seal ring when at the second position than at the first position. Further included is a retention piece operably connecting the seal ring and the back ring.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xiaoqing Zheng, Nathaniel Carmello Glinbizzi, Rodrigo Rodriguez Erdmenger, Norman Arnold Turnquist
  • Publication number: 20130195695
    Abstract: In one or more embodiments, the present invention provides electric motors and related systems comprising (a) a motor housing; and (b) a hollow rotor configured to rotate within and be driven by a stator contained within the motor housing; wherein the motor housing is characterized by a largest cross-sectional area of the motor housing, and wherein the hollow rotor defines a flow channel characterized by a smallest cross-sectional area of the flow channel, wherein the smallest cross-sectional area of the flow channel is at least 25% of the largest cross-sectional area of the motor housing, and wherein the hollow rotor has a first end portion defining a fluid inlet, and a second end portion defining a fluid outlet; the fluid inlet, the flow channel and the fluid outlet being configured to allow passage of a fluid from the fluid inlet to the fluid outlet via the flow channel.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 1, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jeremy Daniel Van Dam, Manoj Ramprasad Shah, Norman Arnold Turnquist
  • Patent number: 8430628
    Abstract: A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the fluid.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: April 30, 2013
    Assignee: General Electric Company
    Inventors: Norman Arnold Turnquist, Keith Michael Parker, Xiaoqing Zheng, Rodrigo Rodriguez Erdmenger, Robbert Christiaan Pannekeet, Alexander Kimberley Simpson, Biao Fang
  • Patent number: 8382120
    Abstract: A seal assembly for a turbomachine includes a plurality of compliant plate members attached to an interior surface of a stationary housing. The compliant plate members define a sealing ring between the stationary housing and a rotor. Each of the compliant plate members comprises at least one slot therein. The seal assembly further includes at least one arcuate static ring attached to the interior surface of the stationary housing and extending radially into the at least one slot in the compliant plate members. Each of the at least one static ring extends circumferentially through and between a plurality of the compliant plate members. Finally, the seal assembly includes a vibration damper disposed adjacent to or provided on the plurality of compliant plate members. The vibration damper is configured to dampen vibration of the plurality of compliant plate members.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 26, 2013
    Assignee: General Electric Company
    Inventors: Hrishikesh Vishvas Deo, Norman Arnold Turnquist, Farshad Ghasripoor, William Edward Adis
  • Patent number: 8327752
    Abstract: Disclosed is an actuator that includes a cylinder having an input port, a piston disposed at least partially inside of the cylinder, and one or more piston rings disposed in a circumferential piston ring groove or grooves. The actuator also includes at least one spring, inserted into the circumferential piston ring groove adjacent to the one or more piston rings and a high pressure side of said piston ring. The spring preloads the one or more piston rings to seal between a low pressure face of the one or more piston rings and a low pressure face of the circumferential piston ring groove. The invention also includes a method for moving an adjustable seal in a radial direction using the piston-ring sealed actuator. The method includes moving the adjustable seal in an axial direction, breaking a primary axial contact between the adjustable seal and a primary sealing face.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: December 11, 2012
    Assignee: General Electric Company
    Inventors: Kripa Kiran Varanasi, Shorya Awtar, Frederick George Baily, Mark Edward Burnett, Farshad Ghasripoor, Imdad Imam, Norman Arnold Turnquist
  • Publication number: 20120251290
    Abstract: An aspirating face seal includes a primary seal, a secondary seal, and a biasing device. The primary seal includes a first seal component and a second seal component. The first seal component is configured to be coupled to a rotor and rotatable with the rotor. The secondary seal includes a plurality of flexible elements and configured to be disposed between the second seal component and a stator housing. A biasing device is coupled to the second seal component such that the second seal component is biased along an axial direction away from the first seal component during a non-operating condition.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Norman Arnold Turnquist, Rodrigo Rodriguez Erdmenger, Xiaoqing Zheng, Robbert Christiaan Pannekeet, Keith Michael Parker
  • Patent number: 8262349
    Abstract: A steam turbine comprises a steam turbine casing, a rotor, and at least one compliant plate seal assembly situated between the casing and the rotor. The compliant plate seal assembly comprises a supporting member being stationary with respect to the casing, a plurality of plate members movably mounted to the supporting member and extending towards the rotor, each plate member being inclined with respect to a rotation direction of the rotor, and an actuator for selectively exerting a pressure to retract the plate members in a direction away from the rotor.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: September 11, 2012
    Assignee: General Electric Company
    Inventors: Norman Arnold Turnquist, Bernard Arthur Courture, Jr., Mark William Kowalczyk, Frederick George Baily, Mark Edward Burnett
  • Patent number: 8250756
    Abstract: A compliant plate seal arrangement manufacturing method is provided. A compliant plate seal manufacturing method includes assembling a plurality of t-shims and a plurality of spacer shims into a straight weld fixture, thereby forming a shim pack having a front and rear end and sides, welding the sides of the shim pack to a top plate, removing a portion of the weld fixture, removing the plurality of spacer shims, shaping the shim pack into a target diameter, and applying a radial flow plate to the leaf pack.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 28, 2012
    Assignee: General Electric Company
    Inventors: William Edward Adis, Bernard Arthur Couture, Jr., Hrishikesh Vishvas Deo, Sean Douglas Feeny, Michael Dennis Mack, Daniel Frederick Purdy, Norman Arnold Turnquist
  • Patent number: 8240913
    Abstract: A device includes a stationary, rotary component, and a fiber optic sensing system. The fiber optic sensing system includes a cable having one or more fiber optic sensors disposed on the stationary component, the rotary component, or combinations thereof. The fiber optic sensing system is configured to detect one or more first parameters including temperature, strain, pressure, vibration, torque; or combinations thereof related to the stationary component, the rotary component, or combinations thereof. The one or more first parameters is used to determine one or more second parameters including thermal expansion, clearance, fluid flow rate variation, condensation, fluid leakage, thermal loss, life, thermal stress, or combinations thereof related to the stationary component, the rotary component, or combinations thereof.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: August 14, 2012
    Assignee: General Electric Company
    Inventors: Danian Zheng, Norman Arnold Turnquist, Peter John Eisenzopf, Kevin Thomas McCarthy, Hua Xia, Roy Paul Swintek
  • Publication number: 20120201489
    Abstract: A method includes transmitting light through at least one transmission optical fiber towards a target, receiving light reflected from the target through at least one signal optical fiber, filtering the received light at least two different wavelengths, and using the filtered light to detect a clearance variation. An optical fiber probe includes a plurality of optical fibers, a moisture-resistant enclosure enclosing the optical fibers, a hydrophobic layer situated over an end of the optical fiber probe for preventing moisture from reaching the optical fibers, and a broadband transmission layer between ends of the optical fibers and the hydrophobic layer.
    Type: Application
    Filed: August 2, 2011
    Publication date: August 9, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Danian Zheng, Peter John Eisenzopf, Kevin Thomas McCarthy, Roy Paul Swintek, Norman Arnold Turnquist, Hua Xia
  • Publication number: 20120195741
    Abstract: A brush seal assembly for turbomachinery having a rotor can include a stationary seal component, a floating seal component coupled to the stationary seal component and circumferentially angled bristles arranged in a bristle pack, disposed in the floating seal component and extended axially with respect to the rotor.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Neelesh Nandkumar Sarawate, Norman Arnold Turnquist, William Edward Adis, Robert Gerard Baran, Rodrigo Rodriguez Erdmenger, Robbert Christiaan Pannekeet, Keith Michael Parker, Xiaoqing Zheng
  • Patent number: 8162324
    Abstract: A method of assembling a turbomachine that includes a rotor and a stationary component is provided. The method includes coupling a housing to the stationary component using at least one biasing member, wherein the housing extending circumferentially about the rotor. The method also includes coupling at least one annular ring to the housing, and coupling a plurality of plate members to the housing such that the at least one annular ring extends from the housing towards the rotor and partially through the plurality of plate members.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: April 24, 2012
    Assignee: General Electric Company
    Inventors: Hrishikesh Vishvas Deo, Norman Arnold Turnquist, Frederick George Baily, Bernard Arthur Couture, Jr., Sean Douglas Feeny, William Edward Adis, Shorya Awtar
  • Publication number: 20120049461
    Abstract: A seal assembly for a turbomachine includes a plurality of compliant plate members attached to an interior surface of a stationary housing. The compliant plate members define a sealing ring between the stationary housing and a rotor. Each of the compliant plate members comprises at least one slot therein. The seal assembly further includes at least one arcuate static ring attached to the interior surface of the stationary housing and extending radially into the at least one slot in the compliant plate members. Each of the at least one static ring extends circumferentially through and between a plurality of the compliant plate members. Finally, the seal assembly includes a vibration damper disposed adjacent to or provided on the plurality of compliant plate members. The vibration damper is configured to dampen vibration of the plurality of compliant plate members.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicant: General Electric Company
    Inventors: Hrishikesh Vishvas Deo, Norman Arnold Turnquist, Farshad Ghasripoor, William Edward Adis
  • Patent number: 8113771
    Abstract: A spring assembly for a retractable turbine rotor seal supported in an arcuate segment may include in one embodiment a first radially inner restraining plate having a lower surface adapted to engage a surface of a turbine stator, and a flat upper surface provide with an upstanding hub; a second radially outer restraining plate having a flat lower surface and an upper surface adapted to engage a surface of the arcuate segment, the radially outer restraining plate formed with an opening receiving the upstanding hub; and at least one spring telescoped over the upstanding hub and exerting a radially outward biasing force on the second radially outer restraining plate, and adapted to exert a radially outward retracting force on the arcuate segment.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: February 14, 2012
    Assignee: General Electric Company
    Inventors: Norman Arnold Turnquist, Shorya nmn Awtar, Mustafa Gursoy, Kartik Mangudi Varadarajan
  • Patent number: 8052375
    Abstract: Disclosed is a seal for turbomachinery including a seal face locatable between a first turbomachinery component and a second turbomachinery component. At least one fluid channel extends through the seal. The at least one fluid channel is capable of injecting fluid flow between the first turbomachinery component and the second turbomachinery component at the seal face thereby disrupting a leakage flow between the first turbomachinery component and the second turbomachinery component. Further disclosed is a turbomachine utilizing the seal.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: November 8, 2011
    Assignee: General Electric Company
    Inventors: Norman Arnold Turnquist, Kevin L. Bruce, Ciro Cerretelli, John Ernest Tourigny
  • Patent number: 8042412
    Abstract: A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: October 25, 2011
    Assignee: General Electric Company
    Inventors: Hua Xia, Norman Arnold Turnquist, David So Keung Chan, Danian Zheng, Kevin Thomas McCarthy, Richard Joseph Gawrelski, Matthew Damian Pietrzykowski, Alexander Seth Ross, Yun Li, Juntao Wu
  • Patent number: 8009939
    Abstract: A fiberoptic system for clearance detection between rotating and stationary turbomachinery components is presented. The system comprises an optical fiber probe comprising a plurality of optical fibers, at least one of the optical fibers comprising a transmission fiber and at least one of the optical fibers comprising a signal fiber; a light source for providing light through the transmission fiber towards a target; filters for receiving light from the signal fibers, at least two of the filters for filtering different wavelengths; and at least one photodetector for receiving filtered light from the filters.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 30, 2011
    Assignee: General Electric Company
    Inventors: Danian Zheng, Peter John Eisenzopf, Kevin Thomas McCarthy, Roy Paul Swintek, Norman Arnold Turnquist, Hua Xia
  • Publication number: 20110135445
    Abstract: A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the fluid.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 9, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Norman Arnold Turnquist, Keith Michael Parker, Xiaoqing Zheng, Rodrigo Rodriguez Erdmenger, Robbert Christiaan Pannekeet, Alexander Kimberley Simpson, Biao Fang