Smooth Runner Surface For Working Fluid Frictional Contact (e.g., Unbladed Runner, Etc.) Patents (Class 415/90)
  • Patent number: 11519419
    Abstract: A vacuum pump generally comprises a low pressure portion and a high pressure portion separated by a gas impermeable partition. Gas molecules exit the low pressure portion through an opening in the partition and passively impinge on a featureless rotatable surface in the high pressure portion. A drive rotates the rotatable surface with tangential velocity in the supersonic range at multiple times the most probable velocity of the impinging gas molecules. Impinging gas molecules are ejected outwardly from the periphery of the rotatable surface generating a substantial net outward flow of gas and reducing the pressure in the low pressure portion. The vacuum pump is effective to reduce the pressure in the low pressure portion to a target minimum pressure without using seals to prevent gas molecules from leaking back to the low pressure portion and without using blades or vanes to actively impact the gas molecules.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 6, 2022
    Inventor: Kin-Chung Ray Chiu
  • Patent number: 11480182
    Abstract: Provided is a vacuum pump including a turbomolecular mechanism having rotor blades and stator blades alternately arranged in multiple stages in an axial direction inside a casing having an inlet port that sucks gas from an outside and an outlet port that exhausts the sucked gas to the outside, the vacuum pump including: a plurality of annular spacers that are stacked on each other and position the stator blades in the axial direction; the casing that has a cylindrical portion arranged to surround outer peripheries of the plurality of stacked spacers and a base portion attached to a lower portion of the cylindrical portion; and an upper radial positioning portion and a lower radial positioning portion provided at two vertical positions inside the cylindrical portion and coaxially hold at least a spacer of an uppermost stage and a spacer of a lowermost stage among the plurality of stacked spacers.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 25, 2022
    Assignee: Edwards Japan Limited
    Inventors: Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
  • Patent number: 11408437
    Abstract: A vacuum pump includes a rotor that has a rotor central portion and a plurality of stages of rotor blade portions extending from the rotor central portion and having a predetermined elevation angle, and a casing that houses the rotor therein. The rotor further includes a rotor fin. The rotor fin includes a fin shaft portion connected to an end of the rotor central portion, and a transfer blade that extends from the fin shaft portion and causes particles to bounce back in a direction toward an outer periphery of the rotor, the particles falling onto the abovementioned end through an inlet port. The height of the transfer blade and the number of transfer blades are set based on the fall velocity of the particles and the rotation speed of the rotor, such that the particles are prevented from falling onto the abovementioned end without colliding with the transfer blade.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 9, 2022
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Toshiki Yamaguchi
  • Patent number: 11364504
    Abstract: A disposable cartridge comprises a cartridge body defining at least one syringe barrel having an barrel port configured to inject and aspirate assay fluids by displacement of a barrel plunger and at least one reaction chamber configured to receive and perform diagnostic testing on the assay fluids. The disposable cartridge also includes at least two rotors mounted for rotation to the cartridge body, each of the rotors defining a plurality of ports in fluid communication with at least one of the assay chambers of a respective one of the rotors. The rotors are selectively rotated such that a port of one rotor aligns with a port of the other rotor. At least one of the rotors is disposed in fluid communication with the syringe port of the syringe barrel such that assay fluids may flows from at least one of the assay chambers through the ports of the rotors by displacement of the barrel plunger.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: June 21, 2022
    Assignee: Integrated Nano-Technologies, Inc.
    Inventors: Dennis M. Connolly, Richard S. Murante, Nathaniel E. Wescott
  • Patent number: 11293447
    Abstract: A turbo molecular pump including multiple stages. At least one of the multiple stages of the rotor blades and the multiple stages of the stator blades is configured to satisfy any one of a first condition of Xout<Xc and Xin<Xc, a second condition of ?·Xc?Xin>Xc>Xout where ?=1.04, or a third condition of Xin<Xc<Xout??·Xc where ?=1.04. Xout, Xc and Xin being an inter-blade distance dived by a blade length, at an outer-diameter-side end portion, at an inner-diameter-side portion, and at an intermediate position of each blade, respectively.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: April 5, 2022
    Assignee: Shimadzu Corporation
    Inventor: Keiichi Futagi
  • Patent number: 11271452
    Abstract: A flywheel device that includes a housing that surrounds a vacuum chamber, a flywheel rotor within the vacuum chamber, which rotates during normal operation of the flywheel, thus agitating residual gasses, an exhaust chamber that receives the exhaust gases from the vacuum chamber, and an annular shaped stationary element, within the vacuum chamber that includes scroll channels where some of the scroll channels have an intake port on an inner diameter of the stationary element and some of the scroll channels have an intake port on an outer diameter of the stationary element, and the scroll channels enable gasses to flow from the vacuum chamber, through the scroll channels, into the exhaust chamber.
    Type: Grant
    Filed: October 27, 2019
    Date of Patent: March 8, 2022
    Assignee: AMBER KINETICS, INC.
    Inventors: Daniel Bakholdin, Peter Thomas Tennessen
  • Patent number: 11255220
    Abstract: Heat exchanger assemblies and methods for providing heat exchange as well as methods providing specific energy to predetermined materials within an assembly as well as gas turbine engines as well as methods of powering same are provided. Heating assemblies are provided that can include: a heat-sinking substrate; and a selective emitter layer in thermal communication with the substrate. These assemblies can be provided as part of heat exchanger assemblies. Methods for providing heat to a fluid are also provided that can include heating a layer upon a substrate to provide photons of a predetermined wavelength to a fluid from the layer. Turbine combustion engines are also provided that can include a turbine having at least a portion of the blades in the hot section of the turbine coated with an emissivity layer in thermal communication with the turbine blade. Methods for powering turbine combustion engines are also provided.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: February 22, 2022
    Assignee: Battelle Memorial Institute
    Inventors: B. Peter McGrail, Jeromy J. Jenks, Bruce E. Bernacki
  • Patent number: 11022127
    Abstract: The prior art has used pitched blades attached to a stationary motor, normally electric. to move air within the confines of a structure or room. The preferred invention incorporates a series of solid discs. The discs are affixed to a stationary electric motor and thus rotate around a central axis. The discs are equally spaced and centrally perforated in a manner that will allow air to flow in high volumes through the perforations and pass along the discs thus exiting symmetrically between each disc perpendicularly to the flow of air that is at its entrance. Due to the less restrictive or low pressure air entrance as well as the correct vertical disc spacing a corresponding increase in the laminar flow is realized. This feature of the preferred invention allows for operation at a rotational speed that practical for use as a ceiling fan.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: June 1, 2021
    Assignee: Exhale Fans LLC
    Inventors: Nicholas A. Hiner, Richard W Halsall
  • Patent number: 11009027
    Abstract: A vacuum rotor system is provided comprising a hollow rotor with a rotor jacket that is open at both ends perpendicular to the axis of rotation and with at least two hubs that are connected to the inside of the rotor jacket and that are suitably mounted in appropriate bearings so that the rotor can rotate. A machine housing that encloses the rotor and that has at least one gas outlet opening to discharge gases from the machine housing. A vacuum system that is connected to the gas outlet opening and that has at least one forepump for generating a fore-vacuum pressure in the machine housing. At least one first gas removal device with a gas pick-up opening is arranged in the machine housing between the hub and the appertaining open end of the rotor jacket.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: May 18, 2021
    Inventors: Hubert Reischl, Edwin Zimmermann
  • Patent number: 11009040
    Abstract: To provide a vacuum pump capable of heating only a flow channel extending from the vicinity of an exit of a thread groove exhaust flow channel toward an outlet port and prevents the accumulation of a product that is caused by a decrease in the temperature of process gas near the exit of the thread groove exhaust flow channel and the flow channel. A vacuum pump has a thread groove exhaust portion that has thread groove exhaust flow channels at least in respective parts of portions on inner and outer circumferential sides of a rotor (rotating body), a casing enclosing the thread groove exhaust portion, an outlet port for exhausting gas compressed by the thread groove exhaust portion to the outside of the casing, and a partition wall that covers a flow channel extending from the exits of the thread groove exhaust flow channels toward the outlet port.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: May 18, 2021
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Takashi Kabasawa
  • Patent number: 10859065
    Abstract: A supplemental propulsion system for a vehicle may include a Flettner rotor. The Flettner rotor includes a rotatable cylinder mounted on a vehicle, e.g., either horizontally or vertically. An airflow deflector is located on the vehicle behind (i.e., downwind of) the Flettner rotor, and the airflow deflector is configured to redirect a vehicle headwind to generate an airflow past the cylinder in a direction transverse to the headwind. An electronic controller may be configured to control a motor to rotate the cylinder. In some examples, the rotational speed of the cylinder is maintained at a selected multiple of a speed of the airflow past the cylinder.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: December 8, 2020
    Inventor: Li Li
  • Patent number: 10855133
    Abstract: A drive device includes a cover and a connector case. The cover is shaped into a cup form and has a connector insertion hole at a bottom portion of the cover. In a view taken in a connector inserting direction, the connector insertion hole is larger than a contour of a connector portion of the connector case, and a gap between an inner wall surface of the connector insertion hole and the contour of the connector portion is equal to or smaller than 3 mm. Thereby, although the connector insertion hole is formed to be larger than the connector portion to enable the insertion of the connector portion into the connector insertion hole at a time of assembly, a size of a cross section of the opening of the connector insertion hole is minimized.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: December 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shuhei Miyachi, Takashi Tsuboi
  • Patent number: 10844864
    Abstract: Turbomolecular stator components include an array of stator blades, arranged to interact with pumped gases. Spacers are used to locate the stator blade array and couple the stator blade array to a housing. The stator components include an outer section that is resilient and arranged to cooperate with the spacers.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 24, 2020
    Assignee: Edwards Limited
    Inventor: Paul Milner
  • Patent number: 10830511
    Abstract: A refrigerator, including a sealed refrigeration system, is provided herein. The sealed refrigeration system may include a compressor, a phase separator, and a rotatable heat exchanger. The phase separator may be in fluid communication with the compressor and include a separator body defining an inner face and an outer face. The inner face may define a refrigerant cavity. The outer face may be directed away from the refrigerant cavity opposite the inner face. The rotatable heat exchanger may include a thermally conductive body and a plurality of spaced planar fins. The thermally conductive body may be positioned about the outer face along a rotation axis. The planar fins may extend from the thermally conductive body in a radial direction away from the phase separator. The plurality of spaced planar fins may define an axial intake channel extending parallel to the rotation axis through one or more planar fins.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 10, 2020
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Michael Goodman Schroeder
  • Patent number: 10794385
    Abstract: A vacuum pump comprises: a rotor provided with multiple stages of rotor blades; a base including a ball bearing configured to rotatably support the rotor; an outer cylinder covering the rotor and connected to the base; and a control device including an electronic circuit having a heat generation element. The control device is provided in contact with the outer cylinder.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 6, 2020
    Assignee: SHIMADZU CORPORATION
    Inventor: Koichi Shimizu
  • Patent number: 10767653
    Abstract: The present invention relates to a turbo-molecular vacuum pump comprising bearings for supporting the drive shaft and/or the rotor in relation to a pump body, wherein a first bearing is coupled to the rotor and disposed on supporting mount at the high vacuum side of the rotor and radial struts extend from the supporting mount and form an integral part of the body; the invention is characterised in that the radial struts comprise a hinge portion that can flex to allow relative movement of the inlet flange with respect to the supporting mount to reduce distortion effects.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 8, 2020
    Assignee: Edwards Limited
    Inventors: Alan Ernest Kinnaird Holbrook, Paul Milner
  • Patent number: 10760578
    Abstract: A vacuum pump comprises: a pump device configured to rotate a rotor about a rotation axis supported by a ball bearing, thereby discharging gas sucked through a pump suction port from a pump exhaust port; and a control device attached to a side surface along a direction of the rotation axis of the pump device, including an electronic circuit having a heat generation element and a housing configured to house the electronic circuit, and configured to control operation of the pump device. The heat generation element directly contacts an outer plate of the housing not contacting the pump device, and does not contact an outer plate of the housing contacting the pump device.
    Type: Grant
    Filed: October 21, 2018
    Date of Patent: September 1, 2020
    Assignee: SHIMADZU CORPORATION
    Inventor: Mamoru Shiba
  • Patent number: 10697671
    Abstract: Materials, components, and methods consistent with the present invention are directed to the fabrication and use of micro-scale channels with a fluid, where the temperature and flow of the fluid is controlled through the geometry of the micro-scale channel and the configuration of at least a portion of the wall of the micro-scale channel and the constituent particles that make up the fluid. Moreover, the wall of the micro-scale channel and the constituent particles are configured such that collisions between the constituent particles and the wall are substantially specular.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 30, 2020
    Assignee: Forced Physics, LLC
    Inventor: Scott Davis
  • Patent number: 10682653
    Abstract: In at least one embodiment, the invention provides a retrofit for existing water treatment systems where the retrofit includes at least one of the following: a particulate separator, a supplementary inlet, and a waveform disk-pack turbine. In a further embodiment, the invention includes a water treatment system combined with at least one of the following: a particulate separator, a supplementary inlet, and a waveform disk-pack turbine.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: June 16, 2020
    Assignee: QWTIP LLC
    Inventor: Whitaker B. Irvin, Sr.
  • Patent number: 10670035
    Abstract: The present invention relates to an impeller assembly for centrifugal pumps, comprising a first disk-like element, operatively arranged towards a coaxial inlet, facing a second disk-like element with a smaller diameter, operatively arranged towards the outlet; this second disk-like element is rigidly connected to the first disk-like element through a set of angularly spaced blades, and is centrally provided with fastening means for fastening to a drive shaft. The distinctive feature of the present invention is that the blades comprise appendices, in flat sheet form, adjacent to the second disk-like element, which are essentially located in correspondence with areas subject to lesser axial thrust.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 2, 2020
    Assignee: Ebara Corporation
    Inventors: Renato Groppo, Mariano Matteazzi, Dai Sakihama, Fabio Balbo
  • Patent number: 10626726
    Abstract: A boundary layer turbine having a housing with an inlet that receives pressurized fluid, a rotatable shaft extending through the housing, nested cylindrical tubes of progressively wider diameter connected coaxially about the shaft wherein adjacent tubes define a cylindrical fluid passageway there-between that is in fluid communication with the inlet and an outlet, and at least one nozzle coupled to the inlet configured to direct the flow of fluid from the inlet into the plurality of passageways and against the plurality of tubes at an angle to a normal plane to the curvature of the plurality of tubes and at an angle to the longitudinal axis of the shaft, wherein the angled flow of fluid imparts rotation to the plurality of tubes and the shaft and flows towards the outlet where the fluid is discharged, and wherein the rotating shaft may be used to provide kinetic energy.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: April 21, 2020
    Inventor: Darrell Ford
  • Patent number: 10480523
    Abstract: Provided is a vacuum pump having a stator disc having a divided structure, in which gaps or misalignments that occur between connection surfaces at which the divided structure is connected are reduced. In a turbo-molecular pump according to this embodiment, a mating relationship between a stator disc and a stator member for alignment (center-alignment) is opposite from that of the related art. Specifically, in a structure in which a base and the stator disc are fitted together, center alignment (positioning/centering) is performed through a structure in which an outer peripheral surface of the stator disc is held (restrained from an outer side) by an inner peripheral surface of the base to be connected thereto. Further, the mating structure of the stator disc includes an integral component. Moreover, the mating position of a stator blade and the mating position of the stator disc having a Siegbahn structure are provided separately.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 19, 2019
    Assignee: Edwards Japan Limited
    Inventors: Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
  • Patent number: 10267321
    Abstract: A stator disk includes a connection hole for improving exhaust efficiency in a vacuum pump including a Seigbahn type molecular pump portion, and a vacuum pump including the stator disk. The vacuum pump according to an embodiment includes a Seigbahn type molecular pump portion and includes, in a stator disk disposed therein, a connection hole that connects an upper space (an inlet port side region, an upstream side region) with a lower space (an outlet port side region, a downstream side region) in the axial direction of the stator disk.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: April 23, 2019
    Assignee: Edwards Japan Limited
    Inventors: Manabu Nonaka, Takashi Kabasawa
  • Patent number: 10190539
    Abstract: A hypersonic vehicle has a body, a control surface, and a hypersonic air-breathing engine. The engine includes a converging inlet having a fixed cowling having a first cross-sectional area and a throat having a second cross-sectional area. A flow restrictor is movable between a stowed position and a fully deployed position. The flow restrictor has a third cross-sectional area that is smaller than the first cross-sectional area, such that a consistent gap is formed between a periphery of the flow restrictor and an inner surface of the cowling with the flow restrictor in the fully deployed position and the difference between the first cross-sectional area and the third cross-sectional area is approximately equal to the second cross-sectional area.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: January 29, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Kevin Gerald Bowcutt, Thomas Russell Smith
  • Patent number: 10024327
    Abstract: A turbomolecular pump includes: a rotor (4) on which rotary vanes (19) in multiple stages are formed; fixed vanes (21) in multiple stages; and a pump casing (7) in which a pump inlet opening (7a) is defined, and that houses the rotor (4) and the fixed vanes (21) in multiple stages; wherein: a surface of the rotor (4) facing the inlet opening has a first emissivity; a surface of one vane stage that is visible from the inlet opening, among a plurality of vane stages including the rotary vanes (19) and the fixed vanes (21), has the first emissivity; and a surface of one vane stage, among the plurality of vane stages, that is not visible from the inlet opening has a second emissivity that is greater than the first emissivity.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: July 17, 2018
    Assignee: SHIMADZU CORPORATION
    Inventor: Shingo Tsutsui
  • Patent number: 10001126
    Abstract: To provide a vacuum pump capable of performing temperature control using one or more heating devices or cooling devices fewer than the number of temperature sensors arranged in the pump. One temperature sensor is arranged for each target in the pump, while only one set consisting of a heater and a magnetic valve is arranged. One set consisting of a heater and a magnetic valve is controlled based on output signals from a plurality of temperature sensors, based on the priorities set for the temperature sensors. As stated above, by setting priorities for the temperature sensors, the temperature of a target provided with a temperature sensor given a higher priority is settled within a control range by performing quick ON/OFF control, and then the temperature of a target provided with a temperature sensor given a lower priority is settled within the control range.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: June 19, 2018
    Assignee: Edwards Japan Limited
    Inventors: Tooru Miwata, Keiichi Ishii, Katsuhide Machida, Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
  • Patent number: 9970444
    Abstract: The invention relates to an adapter for vacuum pumps, characterized in that it comprises an annular inlet flange (15) intended to be coupled to an outlet orifice of a chamber and an outlet coupling (16) comprising at least two cylindrical outlet through-housings (21) and forming an at least partial pump casing for the case (4) of a respective turbomolecular vacuum pump (3), said turbomolecular vacuum pumps (3) being intended to be received in a respective cylindrical outlet housing (21). The invention also relates to a pumping device, characterized in that it comprises an adapter for vacuum pumps (2) as described hereinabove and at least two turbomolecular vacuum pumps (3) housed at least partially in a respective cylindrical outlet housing (21).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 15, 2018
    Assignee: Pfeiffer Vacuum GmbH
    Inventors: Thibaut Bourrilhon, Rainer Mathes, Nicolas Varennes
  • Patent number: 9966829
    Abstract: A stepper motor has a stator winding assembly with a permanent ring magnet located radially outside of electromagnetic windings for the stator poles. The permanent ring magnet remotely magnetizes a rotor seated by bearings on an axial shaft so as to rotate within the stator winding assembly, thereby freeing up space within the rotor for an internal damper. The rotor has a cylindrical damping weight enclosed within, but not fixed to, the rotor. The weight ideally has a rotational moment of inertia that substantially matches that of the rotor. The weight is elastically coupled to the rotor by a viscous material contained in the rotor and filling the space between the weight and the rotor and between the weight and the axial shaft. The viscosity of this material is selected such that motion of the weight is delayed, preferably so as to be substantially 180° out-of-phase with, but at the same frequency as, the stepping rotation of the rotor.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 8, 2018
    Assignee: LIN ENGINEERING, INC.
    Inventors: Ted T. Lin, Harlan H. Nguyen
  • Patent number: 9957406
    Abstract: Method for increasing the smoothness of the free surface area of a PFA film, provided on a component by sequentially exposing it to a temperature higher than its melting temperature so as to melt at least the free surface area, lowering the temperature to solidify the melted portion, remelting the free surface area by exposing it to a temperature of at least the PFA melting temperature and again lowering the temperature. The PFA film may be provided on Al2O3, Ni or NiF2 film.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 1, 2018
    Assignee: TOHOKU UNIVERSITY
    Inventors: Masamichi Iwaki, Tadahiro Ohmi, Kenji Ohyama, Isao Akutsu
  • Patent number: 9790946
    Abstract: An exhaust pump includes: a cylindrical rotating member; an outer cylindrical fixed member; an inner cylindrical fixed member a helical inner thread groove exhaust passage provided between the cylindrical rotating member and the inner cylindrical fixed member; connecting opening portions that are opened in the cylindrical rotating member and that lead a part of gas existing in the vicinity of the outer periphery of the cylindrical rotating member towards the inner thread groove exhaust passage. A gap between an upstream end of the connecting opening portions and lowermost stage rotor blades provided at the outer periphery of the cylindrical rotating member which is located upstream of the connecting opening portions has a dimension equal to or greater than a dimension that enables insertion, into the gap, of a tool for opening the connecting opening portions.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 17, 2017
    Assignee: Edwards Japan Limited
    Inventors: Yoshinobu Ohtachi, Yasushi Maejima, Tsutomu Takaada
  • Patent number: 9759221
    Abstract: Provided is a vacuum pump in which no finish processing has to be carried out after shaping of a cylindrical rotor even in use of a cylindrical rotor obtained by shaping a fiber-reinforced plastic material into a cylindrical shape. The vacuum pump has a turbo-molecular pump section and a thread groove pump section. The upper end section of a cylindrical rotor, which is obtained by shaping a fiber-reinforced plastic material into a cylindrical shape, of the thread groove pump section, is joined to the lower end section of a rotor of the turbo-molecular pump section. A joining portion of the rotor of the turbo-molecular pump section and the cylindrical rotor of the thread groove pump section is disposed upstream of an exhaust passage. As a result, finish processing does not have to be carried out after shaping of the cylindrical rotor.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: September 12, 2017
    Assignee: Edwards Japan Limited
    Inventor: Takashi Kabasawa
  • Patent number: 9709069
    Abstract: A hybrid drive engine uses air foil shaped disks of a first configuration for a compressor portion thereof and air foil shaped disks of a second configuration for a turbine portion thereof, whereby the disks exhibit aerodynamic effects of lift. Particularly, the compressor disks are configured to cause aerodynamic lift off of a periphery of the disks, while the turbine disks are configured to cause aerodynamic lift off of an inner hole of the disks. The aerodynamic nature of the disks cause each disk thereof to form two opposing airfoil shapes either head to head or trailing edge to trailing edge across the through hole.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: July 18, 2017
    Assignee: DAYSPRING CHURCH OF GOD APOSTOLIC
    Inventor: David C. Bosley
  • Patent number: 9464638
    Abstract: An automotive cabin cooling system uses a bladeless turbocompressor driven by automobile engine exhaust to compress incoming ambient air. The compressed air is directed to an intercooler where it is cooled and then to another bladeless turbine used as an expander where the air cools as it expands and is directed to the cabin interior. Excess energy may be captured by an alternator couple to the expander turbine. The system employs no chemical refrigerant and may be further modified to include another intercooler on the output of the expander turbine to isolate the cooled cabin environment.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: October 11, 2016
    Assignee: California Institute of Technology
    Inventors: Juan Cepeda-Rizo, Gani B. Ganapathi
  • Patent number: 9441575
    Abstract: A thermal energy recovery system. The system includes a Stirling engine having a burner thermal energy output. Also, a superheater mechanism for heating the thermal energy output and an expansion engine coupled to a generator. The expansion engine converts the thermal energy output from the burner to mechanical energy output. The generator converts mechanical energy output from the expansion engine to electrical energy output. The expansion engine may also includes vapor output. Some embodiments of the system further include a condenser for condensing the vapor output, a pump for pumping the vapor output and a boiler in fluid communication with the pump. The pump pumps the vapor output to the boiler.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: September 13, 2016
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld
  • Patent number: 9410426
    Abstract: Provided are various devices and processes that harness the inherent kinetic energy of a flowing pressurized fluid to drive a compressor to compress a fluid without any need for electrical or chemical energy. The flowing fluid flows over a boundary layer disk turbine, or Tesla turbine, which is mechanically coupled to a compressor that compresses a fluid. The flowing fluid may be a natural gas from a hydrocarbon recovery operation. The compressed fluid may be a vapor gas from a hydrocarbon production, processing, or storage facility. Harnessing the kinetic energy of the flowing fluid increases economic efficiency of the process, while also avoiding unwanted emissions adverse to the environment and public health.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 9, 2016
    Assignee: Leed Fabrication Services, Inc.
    Inventor: Casey L. Beeler
  • Patent number: 9347463
    Abstract: A turbo-molecular pump includes a case member, a rotor accommodated in the case member, the rotor having rotor blades arranged in multiple steps, a rotor shaft provided coaxially with the rotor, a plurality of stator blades provided on an inner surface of the case member and arranged between the rotor blades, and a plurality of spacers for supporting the stator blades. One of the plurality of spacers has a cooling thick portion for covering an outer peripheral side surface of at least one adjacent upper or lower spacer, and a cooling pipe through which a cooling medium is circulated is provided in the cooling thick portion.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 24, 2016
    Assignee: Shimadzu Corporation
    Inventor: Shingo Tsutsui
  • Patent number: 9309892
    Abstract: The present invention provides a vacuum pump (10) which comprises a turbo-molecular pumping mechanism (12) in series with a Siegbahn pumping mechanism (14). A first pump inlet (16) is provided through which gas can pass through both the turbo-molecular pumping mechanism and the Siegbahn pumping mechanism. Additionally, an inter-stage (inlet 18) is provided through which gas can enter the pump at a location between the turbo-molecular pumping mechanism and the Siegbahn pumping mechanism and pass only through the Siegbahn pumping mechanism. There are flow channels (52, 62) in a first plurality of stages (32, 34) of the Siegbahn pumping mechanism which are in fluid communication with the inter-stage inlet (18) and gas entering the pump through the inter-stage inlet is pumped in parallel along said flow channels.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: April 12, 2016
    Assignee: Edwards Limited
    Inventor: Martin Ernst Tollner
  • Patent number: 9302756
    Abstract: A flywheel housing is for a stern drive of a marine vessel. The flywheel housing comprises an inner mounting face for connection to an engine block of an internal combustion engine of the stern drive and an outer mounting face for connection to a gimbal housing. The inner mounting face and outer mounting face are on opposite axial sides of the flywheel housing. A conduit is formed in the flywheel housing and is configured to receive and discharge exhaust gases from the internal combustion engine. The conduit comprises an inlet port through which the exhaust gases are received from the internal combustion engine and an outlet port through which the exhaust gases are discharged from the flywheel housing.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: April 5, 2016
    Assignee: Brunswick Corporation
    Inventors: John A. Groeschel, David J. Waldvogel
  • Patent number: 9188006
    Abstract: Provided are various devices and processes that harness the inherent kinetic energy of a flowing pressurized fluid to drive a compressor to compress a fluid without any need for electrical or chemical energy. The flowing drive fluid flows over a boundary layer disk turbine, or Tesla turbine, which is mechanically coupled to a compressor that compresses a fluid. The flowing fluid may be a natural gas from a hydrocarbon recovery operation. The compressed fluid may be air that is used to power a pneumatic device in an industrial process. Harnessing the kinetic energy of the flowing fluid increases economic efficiency of the process, while also avoiding unwanted emissions adverse to the environment and public health.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 17, 2015
    Assignee: Leed Fabrication Services, Inc.
    Inventor: Casey L. Beeler
  • Patent number: 9188135
    Abstract: An axial flow compressor includes: a rotor having a rotor vane; a first pressing member joined to one end surface of the rotor; a second pressing member joined to the other end surface of the rotor; a rotor shaft portion penetrating the first pressing member, the rotor and the second pressing member; and a nut which fixes the first pressing member and the second pressing member on the rotor shaft portion with the first pressing member and the second pressing member holding the rotor between. The rotor shaft portion is made of a material having a lower linear expansion coefficient than that of a material making at least a part of the rotor. The material making at least a part of the rotor may be aluminum or aluminum alloy.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 17, 2015
    Assignees: Tokyo Electric Power Company, Incorporated, Chubu Electric Power Company, Incorporated, THE KANSAI ELECTRIC POWER CO., INC., KABUSHIKI KAISHA KOBE SEIKO SHO, DANISH TECHNOLOGICAL INSTITUTE, JOHNSON CONTROLS DENMARK APS
    Inventors: Yoshihiro Nakayama, Yoshitaka Baba, Satoshi Ide, Koichiro Iizuka, Ryo Fujisawa, Masatake Toshima, Kunihiko Suto, Kazutaka Kurashige, Ichirou Sakuraba, Daisuke Hayashi, Keiji Sugano, Svend Rasmussen, Ziad Al-Janabi, Finn Jensen, Lars Bay Moller, Hans Madsboll, Christian Svarregaard-Jensen, Klaus Damgaard Kristensen
  • Patent number: 9163512
    Abstract: The bladeless turbine includes a case, three or more turbine discs disposed within the case. Each turbine disc has a center opening, and two or more of the turbine discs have a set of exhaust ports positioned annularly around the center opening. A drive shaft passes through the center openings of the turbine discs and is attached to the three or more turbine discs, wherein the drive shaft is positioned within the case along the centerline, free to rotate within the case, and extends through the case for connection to a generator. The one or more fluid/vapor inlets are attached to the main housing such that a fluid/vapor is directed at a specified angle onto the three or more turbine discs. The fluid/vapor outlet is aligned with the centerline. A set of exhaust holes proximate to and connected to the fluid/vapor outlet that are positioned annularly around the drive shaft.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: October 20, 2015
    Assignee: SOLAR LOGIC INCORPORATED
    Inventors: Gregory Bohl, Frank Germano, Martin Dorantes
  • Patent number: 9157443
    Abstract: A control unit, which is integrally mounted on a turbo molecular pump, is provided, in which the control unit can be miniaturized or the manufacturing costs are reduced. An upper casing (12) is fastened on a first mounting member (91) of an external device through a fastening member (61) inserted in a through hole (51) of a flange plate (12a). A first base (14) fastened on the upper casing (12) is fastened on a second mounting member (92) of the external device through a fastening member (63) inserted in a through hole (52) of a flange plate (14b). A control unit (70) is fastened on a second base (15) through a fastening member (65). Since torque produced when a rotor (30) is damaged is not asserted to the fastening member (65), strength of the fastening member (65) and a casing of the control unit (70) is small.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 13, 2015
    Assignee: SHIMADZU CORPORATION
    Inventor: Shingo Tsutsui
  • Patent number: 8992162
    Abstract: A multi-inlet vacuum pump has a first pump device (10) and a second pump device (12). The first pump device (10) includes a first rotor element (18) having a plurality of first rotor discs (20, 21) arranged consecutively in the delivery direction (36). The second rotor disc includes a second rotor element (26) having a plurality of second rotor discs (28) arranged consecutively in the delivery direction (36). A first fluid flow (34) is suctioned through a main inlet (32) by the first pump device (10) and delivered in the direction of the second pump device (12). A second fluid flow (40) is suctioned through an intermediate inlet (38) by the second pump device and delivered in the direction of a pump outlet. The diameter of the last rotor disc (21) of the first pump (10) substantially corresponds to the diameter of the first rotor (28) of the second pump device (12).
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 31, 2015
    Assignee: Oerlikon Leybold Vacuum GmbH
    Inventors: Markus Henry, Heinz Englaender, Christian Beyer
  • Publication number: 20150078883
    Abstract: A bladeless pump for fluids, including gases or gases having particulate matter therein, which may be driven by a motor. The bladeless pump consists of an assembly of rotors or discs stacked one against the other. Each rotor or disc has a runner portion on an outer area spaced away from the center of the disc or rotor and a central portion which has two or more spokes. The spokes have inter-spoke openings. The spokes are typically thicker than the rest of the discs. When many discs are placed together and spun on an axle driven by a motor, then air may be drawn in adjacent the rotor assembly where the inter-disc openings are located, and compressed as they enter the inter-disc area. A volute that is spiral shape is provided adjacent the outer rim of the disc assembly which receives the pressurized air and releases it from a motor housing.
    Type: Application
    Filed: June 20, 2014
    Publication date: March 19, 2015
    Inventor: Ralf W. Blackstone
  • Patent number: 8961104
    Abstract: A turbomolecular pump includes a drag pump unit constituted with a rotational cylinder portion disposed at a rotor and a fixed cylinder (24) disposed via a gap on an outer circumferential side of the rotational cylinder portion. The fixed cylinder (24) includes: a cylinder upper portion (240a) locked to a base (1); and a cylinder lower portion (240b) connected to a discharge downstream side of the cylinder upper portion (240a) via a groove (243) formed so that a break occurs when the rotational cylinder portion (32) breaks and a broken rotational cylinder portion (32) collides with the fixed cylinder (24) subjecting the fixed cylinder (24) to a rotational torque working in a direction matching the direction in which the rotational cylinder portion (32) rotates.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 24, 2015
    Assignee: Shimadzu Corporation
    Inventor: Masahito Kogame
  • Patent number: 8961106
    Abstract: A connector device for coupling a turbomolecular pump to an apparatus to be pumped. The connector device can suppress transmission of vibrations of relatively low frequencies. The pump has a rotor, a casing accommodating the rotor therein, and an intake port and an outlet port formed in the casing. The pump operates to suck gas from the intake port and to expel the gas from the outlet port by rotating the rotor within the casing at high speed. The connecting device has a connecting exhaust tube for connecting the intake port of the turbomolecular pump with the outlet port of the apparatus (such as a vacuum vessel) to be pumped. An annular weight is disposed around the outer periphery of the connecting exhaust tube. A viscoelastic member is interposed between the connecting exhaust tube and the weight to form a vibration absorber.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 24, 2015
    Assignee: JEOL Ltd.
    Inventor: Mitsuru Hamochi
  • Publication number: 20150050124
    Abstract: The present invention relates to a device for pumping a fluid at low flows, comprising a body (1) including a channel (2) having a circular cross section for transportation of a fluid, and a cylindrical cavity (3) arranged in connection with the channel and with its longitudinal axis being non coplanar with the longitudinal axis of the channel, and a pump including a rotatable cylinder (6) extending into the cavity, coaxial with the cavity, with the periphery of the cylinder protruding into the channel, thereby driving the fluid in the channel by shear forces.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 19, 2015
    Inventors: Peter Gardhagen, Eva-Lena Gardhagen
  • Publication number: 20150037137
    Abstract: An improved vacuum pump mechanism is described in which an intersecting solid or perforated element is arranged to intersect a channel member. Relative movement of the intersecting solid or perforated element and channel member causes gas molecules to be urged from inlet to an outlet of the pump. Gas molecules are constrained within the channel member and interaction of the gas molecules with the flat and smooth surfaces of the intersecting solid or perforated member influence momentum of the gas molecules so that they are directed towards the outlet. In one embodiment, the channel member is formed as a helix and the intersecting solid or perforated elements are disk-shaped. An alternative embodiment is provided having the channel member configured as a spiral and the perforated elements as cylindrical skirts. The pump provides significant improvements in pump capacity, reduced power consumption and size of pump.
    Type: Application
    Filed: January 24, 2013
    Publication date: February 5, 2015
    Inventors: Nigel Paul Schofield, Ian David Stones, Stephen Dowdeswell
  • Patent number: 8939949
    Abstract: The present disclosure relates to a stacked multi-disk pump for the pumping of ocular fluid and/or tissue during ophthalmic surgery. The stacked multi-disk pump includes an inlet port, a stacked multi-disk assembly, a fluid chamber, a central hub, a motor, and an outlet port. The motor and the hub induce the multi-disk assembly to rotate. As the multi-disk assembly rotates, the fluid is propelled into the inlet port, progresses axially, circumferentially, and radially through the stacked multi-disk assembly, and flows out the outlet port. The pump may be incorporated, for example, into the handpiece of an ophthalmic surgical instrument or a surgical console.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: January 27, 2015
    Assignee: Alcon Research, Ltd.
    Inventor: John M. Bourne
  • Publication number: 20150021915
    Abstract: An apparatus comprising: (a) a bladeless rotatable element with a smooth outer surface, said rotatable element connected to a drive mechanism; and (b) a dynamo powered by said drive mechanism so as to output an electric current.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 22, 2015
    Applicant: RE10 LTD.
    Inventors: Carmi Raz, Tzahi Shneider