With Inlet And Outlet Connections Patents (Class 415/112)
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Patent number: 11543032Abstract: A last-stage pressure drop-adjustable multistage brush seal structure. The seal structure comprises a stator casing, gears, gear shafts, stator casing vent holes, a brush wire beam, downstream brush seal piece vent through holes, downstream brush seal upper side gear teeth, and the like. The stator casing is stationary. An upstream brush seal piece is fixedly mounted on the inner side of the stator casing. According to the last-stage pressure drop-adjustable multistage brush seal structure, reverse driving force moment in an inclined direction of brush wires is given to the gear shafts, torsion moment is transferred to the gears through the gear shafts, and the downstream brush seal piece gear teeth are engaged with the downstream brush seal piece and transfer the torsion moment to the downstream brush seal piece, such that the downstream brush seal piece rotates around a rotor.Type: GrantFiled: November 23, 2020Date of Patent: January 3, 2023Assignee: Fudan UniversityInventors: Chengwei Fei, Guoqiang Zhang
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Patent number: 11371388Abstract: A turbocharger (1A) includes a rotary shaft (2), a journal hearing (5A), and a bearing housing (10). The journal hearing (5A) includes load support surfaces (14 and 15), a first gap forming portion (F1), and a second gap forming portion (F2). The first gap forming portion (F1) firms a first gap (101) in a radial direction between the load support surfaces (14 and 15) adjacent to each other in a direction of a central axis (O). The second gap forming portion (F2) forms a second gap (102) smaller than the first gap in the radial direction between the load support surfaces (14 and 15) adjacent to each other in the direction of the central axis (O).Type: GrantFiled: July 23, 2018Date of Patent: June 28, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Takaya Futae, Tatsuya Ishizaki, Hiromichi Oba, Taiyo Shirakawa
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Patent number: 11359632Abstract: A gas compressor is disclosed that includes a first rotor having a first rotor body, the first rotor body including a plurality of helical lobes, an infernal volume within the first rotor body defined by a wall, and a turbine disposed within the internal volume, the turbine including a turbine body and a plurality of airfoils extending substantially radially from the turbine body to the wall, where the internal volume is structured to enable a cooling fluid to flow therethrough. The gas compressor further includes a second rotor body including a plurality of helical flutes, an inlet manifold and an outlet manifold, both disposed within the second rotor body, and a body channel within at least one flute extending from and in fluid communication with the inlet manifold to the outlet manifold, where the body channel is structured to enable a cooling fluid to flow therethrough.Type: GrantFiled: October 31, 2014Date of Patent: June 14, 2022Assignee: INGERSOLL-RAND INDUSTRIAL U.S., INC.Inventors: James Christopher Collins, Willie Dwayne Valentine
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Patent number: 11353113Abstract: A seal assembly including: a collar having an opening configured to receive a rotatable shaft, an annular member having an annular opening configured to receive the collar, and first and second end plates fixedly coupled to a respective one of the first and second end surfaces of the collar. An outer surface of the collar includes one or more helical threads. The collar has a first axial length defined between first and second end surfaces of the collar, and the annular member has a second axial length defined between first and second end surfaces of the annular member, in which the second axial length is less than the first axial length. Also provided are an assembly comprising a seal assembly in accordance with the present disclosure and a method for preventing contamination of a sealed chamber.Type: GrantFiled: November 1, 2019Date of Patent: June 7, 2022Assignee: INTERNATIONAL PAPER COMPANYInventor: Steven George Scheer
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Patent number: 11268515Abstract: A turbopump includes an impeller (22) that is rotatable about an axis (A). A discharge collector (28) is located radially outward of the impeller. A passage (30) fluidly connects the impeller to the discharge collector. The passage is curved.Type: GrantFiled: June 29, 2015Date of Patent: March 8, 2022Assignee: AEROJET ROCKETDYNE, INC.Inventors: Jeff Miller, Saleh Tyebjee, Thaddeus Chilcoat, Steven Grota
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Patent number: 10954885Abstract: A flow guiding appliance of a turbomachine, in particular of an aircraft engine, for a partial exit flow of an outlet guide vane of a compressor, wherein, a flow guiding element delimits an annular channel about a shaft of the turbomachine. A frictional engagement connecting surface at the circumference of the flow guiding element connects the flow guiding element to another structural component of the turbomachine. The frictional engagement connecting surface with a closed enveloping surface can be inserted in a deformed state into the structural component with a circular cylindrical sealing surface with at least two opposite points. The at least two points of the closed enveloping surface are arranged in at least two opposite frictionally engaged contact areas of the circular cylindrical sealing surface following deformation. The invention also relates to a method for creating a flow guiding element.Type: GrantFiled: May 3, 2018Date of Patent: March 23, 2021Assignee: Rolls-Royce Deutschland Ltd & Co KGInventors: Igor Sikorski, Jason Phillips
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Patent number: 10920829Abstract: The purpose of the present disclosure is to provide a thrust bearing cooling device which can improve the cooling efficiency of a thrust bearing. A thrust bearing cooling device comprising: a fluid storage tank in which a thrust bearing is installed and a fluid is stored, an outer surface of the fluid storage tank being exposed to external air; and at least one heat exchange fin provided in the fluid storage tank.Type: GrantFiled: June 21, 2018Date of Patent: February 16, 2021Assignee: Hyundai Electric & Energy Systems Co., Ltd.Inventors: Sung-Hyun Moon, Kwang-Jin Han, Nam-Uk Cho
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Patent number: 10801505Abstract: A centrifugal compressor according to the present invention includes, as gas flow paths, diffuser flow paths into which process gas flowing from impellers to outside in a radial direction flows, curved flow paths that respectively communicate with the diffuser flow paths and change a flowing direction of the process gas from a direction toward the outside in the radial direction to a direction toward inside in the radial direction, and return flow paths that respectively communicate with the curved flow paths and cause the process gas flowing through the curved flow paths to flow into the impellers. In the present invention, the curved flow path configuring at least one of the gas flow paths is provided between a diaphragm and a flow path forming body that is provided between the diaphragm and the casing.Type: GrantFiled: December 8, 2016Date of Patent: October 13, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Kazutoshi Yoko, Shin Yanagisawa, Eiichi Yanagisawa, Akihiro Nakaniwa, Daisuke Hirata, Takanori Matsueda
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Patent number: 10781709Abstract: A turbine engine includes an engine core defining a higher pressure region and a lower pressure region. A seal can fluidly separate the higher pressure region from the lower pressure region and be movably mounted to a component within the turbine engine, where a side of the seal can confront the component.Type: GrantFiled: January 9, 2018Date of Patent: September 22, 2020Assignee: General Electric CompanyInventors: Arnab Sen, Jeffrey Douglas Rambo, Rajesh Kumar, Nathan Evan McCurdy Gibson, Robert Proctor, Bhaskar Nanda Mondal, Steven Douglas Johnson
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Patent number: 10718336Abstract: A molten metal pump assembly and method to fill complex molds with molten metal, such as aluminum. The pump assembly includes an elongated shaft connecting a motor to an impeller. The impeller is housed within a chamber of a base member such that rotation of the impeller draws molten metal into the chamber at an inlet and forces molten aluminum through an outlet. A first bearing is adapted to support the rotation of the impeller at a first radial edge and a second bearing adapted to support the rotation of the impeller at a second radial edge. A bypass gap is interposed between the second bearing and the second radial edge. Molten metal leaks through the bypass gap at a predetermined rate to manipulate a flow rate and a head pressure of the molten metal such that precise control of the flow rate is achieved.Type: GrantFiled: April 3, 2018Date of Patent: July 21, 2020Assignee: PYROTEK, INC.Inventor: Jon Tipton
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Patent number: 10677287Abstract: A bearing structure S includes: a bearing hole formed in a housing; a main body portion of a bearing provided in the bearing hole and inserted with a shaft therethrough; damper surface and provided on an outer circumferential surface of the main body portion, the damper surface facing an inner circumferential surface of the bearing hole; thrust surface provided at end portions of the main body portion in an axial direction of the shaft; and thrust back surface portions provided in the main body portion and having an outer diameter larger than those of the damper surface, the thrust back surface portions spaced apart from the damper surface by a distance farther than a distance between each of the damper surface and the inner circumferential surface of the bearing hole and positioned on back sides of the thrust surface.Type: GrantFiled: April 18, 2018Date of Patent: June 9, 2020Assignee: IHI CorporationInventors: Yutaka Uneura, Shinichi Kaneda, Shunsuke Nishii, Hideyuki Kojima, Tomomi Sugiura, Kenji Bunno
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Patent number: 10590946Abstract: A turbocharger includes a turbine wheel, a compressor wheel, a shaft coupled to the turbine wheel and the compressor wheel, and a thrust bearing. The thrust bearing includes a loaded side and an unloaded side. The loaded side bears a majority of axial loading caused by force imbalances between the turbine wheel and the compressor wheel during engine startup. The thrust bearing restricts oil flow to the unloaded side as compared to the loaded side during engine startup.Type: GrantFiled: January 9, 2017Date of Patent: March 17, 2020Assignee: BorgWarner Inc.Inventor: Andrew Day
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Patent number: 10543301Abstract: A heart pump including: a housing forming a cavity including: at least one inlet aligned with an axis of the cavity; and, at least one outlet provided in a circumferential outer wall of the cavity; an impeller provided within the cavity, the impeller including vanes for urging fluid from the inlet to the outlet; and, a drive for rotating the impeller in the cavity and wherein a flow path through the pump has a minimal cross-sectional area of at least 50 mm2.Type: GrantFiled: July 6, 2018Date of Patent: January 28, 2020Assignee: BiVACOR Inc.Inventor: Daniel Timms
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Patent number: 10480520Abstract: HVLP (High Velocity Low Pressure) motor-driven fans and other types of fans, blowers and vacuums include one or more features for minimizing vibration and eliminating other causes of fan or motor failure. Examples of such features include a fan blade with a particularly short tail section, a fan wheel spacer with a counterbore in an axial face of the spacer, and a small boss or thin shim adjacent to a screw that clamps an assembly of stator laminations between two motor brackets. The tail section, being relatively short, resists bending during high speed rotation, thereby preventing vibration. The counterbore in the spacer provides the spacer with resilience for maintaining an axial clamping force even as part dimensions change due to thermal expansion. The boss or shim allows the screw to tightly clamp the stator laminations without cracking either of the motor brackets.Type: GrantFiled: October 12, 2016Date of Patent: November 19, 2019Inventors: Scott C. Mancl, Dennis J. Mancl
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Patent number: 10465747Abstract: A bearing structure includes: a bearing housing having a bearing hole to which an opening portion of an oil supply passage is opened; and a semi-floating bearing including: an annular main body portion, which is received in the bearing hole, and has a bearing surface formed on an inner peripheral surface thereof; and one or a plurality of oil-introducing holes, which are formed in the main body portion to penetrate from an outer peripheral surface of the main body portion to the inner peripheral surface of the main body portion. At least one of the one or the plurality of oil-introducing holes is partially or entirely opposed to the opening portion of the oil supply passage, and is formed into a special hole in which a length in a rotation direction of a shaft is larger than a length in an axial direction of the shaft.Type: GrantFiled: January 4, 2018Date of Patent: November 5, 2019Assignee: IHI CorporationInventor: Akihiro Ueda
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Patent number: 10443614Abstract: A compressor housing includes a compressor inlet duct and an inlet for a compressor wheel. The compressor inlet duct has a longitudinal axis and connects an air intake duct with the compressor wheel inlet. The compressor housing includes at least one appendix positioned between an upstream portion of the compressor inlet duct and the compressor wheel inlet. The appendix includes a pipe closed in a distal part thereof with respect to the longitudinal axis of the compressor inlet duct.Type: GrantFiled: January 23, 2017Date of Patent: October 15, 2019Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alberto Racca, Cesare Maria Meano, Jesus Vicente Benajes Calvo, Jose Maria Desantes Fernandez, Jose Galindo Lucas, Roberto Navarro Garcia, Pedro Piqueras Cabrera, Joaquin De La Morena Borja
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Patent number: 10274015Abstract: A bearing for a pump with a shaft rotating around an axial direction includes a housing and a bearing cover fixed to the housing, a bearing structure for supporting the shaft of the pump, a reservoir for a lubricant and an oil ring for transporting the lubricant and for supplying the lubricant to the bearing structure wherein the oil ring is arranged for being moved by the rotating shaft and wherein a retaining element is provided for that is fixed with respect to the housing or the cover, the retaining element being designed and arranged such that it restricts a movement of the oil ring at least in the axial direction.Type: GrantFiled: September 29, 2015Date of Patent: April 30, 2019Assignee: SULZER MANAGEMENT AGInventors: Steven Krafft, Ronrick Pemberton
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Patent number: 10267312Abstract: A pump for pumping liquids containing entrained solids. The pump is comprised of a volute surrounding an impeller comprising vanes that are self-cleaning. The outer surfaces of the vanes are coplanar and define a first plane and have a leading edge. The volute is comprised of a planar mating surface defining a second plane parallel to the first plane of the rotary impeller. The planar mating surface is proximate to the outer surfaces of the vanes and is comprised of a plurality of channels extending radially from the inner perimeter to the outer perimeter thereof. Each channel includes a forward edge in the direction of impeller rotation. The channels are oriented such that when the impeller is rotated within the volute, for any vane, the leading edge of the vane traverses each channel progressively from the inner end of the channel to the outer end of the channel.Type: GrantFiled: July 27, 2017Date of Patent: April 23, 2019Assignee: Liberty Pumps, Inc.Inventor: Donald M. Pohler
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Patent number: 10184355Abstract: A supercharging device includes a rotor mounted in a housing via an axial bearing disposed on an end side of the rotor. The axial bearing includes an axial bearing disc with a first bearing surface, a membrane with a central first opening, and a screw connection that secures the axial bearing disc to the membrane through the central first opening. The axial bearing further includes a bush with a central second opening, wherein the bush is connected to the housing and the membrane is clamped in between the bush and the housing, and an adjusting screw screwed into the central second opening of the bush, wherein the adjusting screw delimits and facilitates an axial movement of the screw connection and thus of the axial bearing disc.Type: GrantFiled: May 3, 2017Date of Patent: January 22, 2019Assignee: Bosch Mahle Turbo Systems GmbH & Co. KGInventor: Michal Klusacek
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Patent number: 10047633Abstract: Embodiments of the present disclosure include a bearing housing of a turbine, wherein the bearing housing is configured to support a shaft of the turbine, and the bearing housing comprises at least one bearing housing ear configured to transfer a load of the bearing housing to an inlet housing of the turbine through a horizontal center line of the bearing housing.Type: GrantFiled: May 14, 2015Date of Patent: August 14, 2018Assignees: General Electric Company, Exxon Mobil Upstream Research CompanyInventors: Maruthi Prasad Manchikanti, Kenneth Damon Black, Donald Earl Floyd, II, Gregory Allan Crum
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Patent number: 10010661Abstract: Provided is a slide device which includes a fixed-side slide member having an annular-shaped first slide surface, and a rotary-side slide member having an annular-shaped second slide surface, with the slide device being configured such that the first slide surface and the second slide surface are positioned opposite to each other, and an outer peripheral side of the fixed-side slide member and an outer peripheral side of the rotary-side slide member are brought into contact with a liquid containing a blood component, and a region where the first slide surface and the second slide surface face each other along the rotary-side slide member, the first slide surface and the second slide surface are brought into contact with each other on an outermost periphery of the opposite-facing region of the first and second slide surfaces.Type: GrantFiled: December 5, 2014Date of Patent: July 3, 2018Assignee: SUN MEDICAL TECHNOLOGY RESEARCH CORPORATIONInventors: Hisa Kinoshita, Tomoya Kitano, Keiichiro Kaneshima
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Patent number: 9989071Abstract: The invention relates to a hydraulic unit including a motor housing for receiving components of an electric motor; having a pump housing for receiving components of a pump, which is driven in order to pump a pressure medium from the electric motor, the pump housing having at least one through-bore for fixing the motor housing to the pump housing by a screw; and having a control device which is arranged on the pump housing face opposite the motor housing. A retaining region for the screw is provided in the through-bore of the pump housing for the purpose of an efficient attachment, the retaining region having an inner thread which is cut or tapped into the retaining region by the thread of the screw during the screw-in process.Type: GrantFiled: December 7, 2012Date of Patent: June 5, 2018Assignee: Continental Teves AG & Co. oHGInventor: Andreas Heise
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Patent number: 9970442Abstract: A molten metal pump assembly (10) and method to fill complex molds with molten metal, such as aluminum. The pump assembly includes an elongated shaft (16) connecting a motor (14) to an impeller (22). The impeller is housed within a chamber (18) of a base member such that rotation of the impeller draws molten metal into the chamber at an inlet (48) and forces molten aluminum through an outlet (50). A first bearing (36) is adapted to support the rotation of the impeller at a first radial edge (32) and a second bearing (38) is adapted to support the rotation of the impeller at a second radial edge. A bypass gap (60) is interposed between the second bearing and the second radial edge. Molten metal leaks through the bypass gap at a predetermined rate to manipulate a flow rate and a head pressure of the molten metal such that precise control of the flow rate is achieved.Type: GrantFiled: April 18, 2012Date of Patent: May 15, 2018Assignee: PYROTEK, INC.Inventor: Jon Tipton
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Patent number: 9835168Abstract: A casing liner used for a sewage pump includes a surface to face an edge of a blade of an impeller when the casing liner is assembled with the impeller into the sewage pump. At least one groove with given width is formed in at least a part of the surface. The groove includes a first section with given depth, which is located on the side close to a rotational center of the impeller, a second section smaller in depth than the first section, which is located on the side far from the rotational center of the impeller, and a third section that is an inclined face connecting the first and second sections, the first to third sections being arranged in a width direction of the groove.Type: GrantFiled: May 28, 2015Date of Patent: December 5, 2017Assignee: EBARA CORPORATIONInventors: Hiroshi Uchida, Masahito Kawai, Hiromi Sakacho, Masashi Obuchi, Miho Isono
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Patent number: 9808839Abstract: A pressure assisted washer or pressure washer with hose reel and motor pump assembly. The hose reel defines a bore in which a motor pump assembly is disposed. The hose reel comprises a cylinder having an aperture through which pressurized fluid can be accessed through a coupling in fluid communication with a pump. The pump has a rotating collar.Type: GrantFiled: May 31, 2013Date of Patent: November 7, 2017Assignee: Active Products Inc.Inventors: Ming Liu, John Schmider, Jonathan Loudon, Heather Lam
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Patent number: 9759229Abstract: A blood pump includes a rotor mounted in a pump housing via a bearing. The housing includes a metal rod extending from the outer wall of the housing towards the inner side of the housing. The rod allows dissipating heat and has a stabilizing action.Type: GrantFiled: April 29, 2011Date of Patent: September 12, 2017Assignee: MEDOS MEDIZINTECHNIK AGInventors: Robert Baumgartner, Benjamin Mattern, Andreas Henseler
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Patent number: 9752511Abstract: A gas turbine engine includes a gear system that provides a speed reduction between a fan drive turbine and a fan rotor. Aspects of the gear system are provided with some flexibility. The fan drive turbine has a first exit area and rotates at a first speed. A second turbine section has a second exit area and rotates at a second speed, which is faster than said first speed. A performance quantity can be defined for both turbine sections as the products of the respective areas and respective speeds squared. A performance quantity ratio of the performance quantity for the fan drive turbine to the performance quantity for the second turbine section is relatively high.Type: GrantFiled: April 11, 2017Date of Patent: September 5, 2017Assignee: United Technologies CorporationInventors: Michael E. McCune, Jason Husband, Frederick M. Schwarz, Daniel Bernard Kupratis, Gabriel L. Suciu, William K. Ackermann
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Patent number: 9644635Abstract: Fan (3) includes suction-side shroud (3a) and suction port (22) at the center portion of suction-side shroud (3a). Fan case (2) includes opening part (13) at a location facing suction port (22). Fan seal (4) is disposed between inner wall surface (2a) of fan case (2) and suction port-side end surface (3b) of suction-side shroud (3a). Opening part (13) includes a plurality of mushroom-shaped anchors (2b). Fan seal (4) includes holding parts (4b) that fit onto mushroom-shaped anchors (2b). Fan seal (4) is press-fitted onto fan case (2) that includes mushroom-shaped anchors (2b).Type: GrantFiled: March 4, 2013Date of Patent: May 9, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hirofumi Mizukami, Tetsuo Shimasaki
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Patent number: 9593684Abstract: A pressurized water reactor (PWR) includes a vertical cylindrical pressure vessel and a nuclear reactor core disposed in a lower vessel section. A hollow cylindrical central riser is disposed concentrically inside the pressure vessel. A downcomer annulus is defined between the central riser and the pressure vessel. A reactor coolant pump (RCP) includes (i) an impeller disposed above the nuclear reactor core and in fluid communication with the downcomer annulus to impel primary coolant downward through the downcomer annulus, (ii) a pump motor disposed outside of the pressure vessel, and (iii) a drive shaft operatively connecting the pump motor with the impeller. The PWR may include an internal steam generator in the downcomer annulus, with the impeller is disposed below the steam generator. The impeller may be disposed in the downcomer annulus. The RCP may further comprise a pump casing that with the impeller defines a centrifugal pump.Type: GrantFiled: July 28, 2011Date of Patent: March 14, 2017Assignee: BWXT Nuclear Energy, Inc.Inventors: Scott J. Shargots, Mathew W. Ales, Michael J. Edwards, Randall J. Paliga
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Patent number: 9476424Abstract: A household appliance includes a tub, in which a liquid is at least temporarily contained, and a pump assembly for effecting liquid flow within the tub. The pump assembly includes a housing including an integrally formed flow path portion defining an inlet, an outlet, and a flow path extending between and interconnecting the inlet and the outlet. The flow path portion defines a turn, such that part of the flow path extends in a direction oriented at an angle relative to the inlet axis. The pump assembly includes a rotatable impeller. The impeller includes a plurality of blades extending at least substantially radially from the impeller axis and configured to propel a fluid at least substantially axially thereby. The impeller is positioned in the flow path adjacent the inlet such that the impeller axis and the inlet axis are at least substantially parallel or at least substantially aligned.Type: GrantFiled: March 15, 2013Date of Patent: October 25, 2016Assignee: Nidec Motor CorporationInventors: Jason A. Richter, William D. Moore, Joshua M. Biro
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Patent number: 9447695Abstract: A diffuser seal for an aft end of a high pressure compressor of a gas turbine engine is disclosed. The diffuser seal includes a flow guide carrier coupled to the diffuser case. The flow guide carrier is also coupled to a static seal. The static seal engages a rotary seal and permits air flow through the static and rotary seals in the aft direction. The flow guide carrier is also coupled to a fairing and a fairing/hub support. The flow guide carrier supports the fairing in a spaced-apart position with respect to the rear hub so that air flowing through the static and rotary seals passes between a forward surface of the fairing and the rear hub. The fairing/hub support extends forward from the flow guide support and engages an aft surface of the fairing thereby limiting movement of the rear hub and fairing in the aft direction. This design helps to prevent parts or debris from piercing the rear hub and entering the high pressure turbine in the even of a fan blade-out or fan blade-off event.Type: GrantFiled: March 1, 2012Date of Patent: September 20, 2016Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Paul W. Baumann, Charles H. Warner, Brian Ellis Clouse
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Patent number: 9284957Abstract: The invention relates to an underwater conveying assembly with a pump (2) and with a drive device (3), in which the drive device (3) is sealed off with respect to the surrounding water and with respect to a process medium, the pump (2) and the drive device (3) being combined into a module (4), and the pump (2) having at least one inlet port (21) and at least one outlet port (22), the module (4) being assigned a collecting element (5), which tapers preferably in the direction of the inlet port (21), at least one suction lance (7) being flow-connected to the inlet port (21). It is possible to change over to a punctiform inlet port which precedes the collecting element (5).Type: GrantFiled: June 23, 2011Date of Patent: March 15, 2016Assignee: ITT Bornemann GmbHInventor: Axel Jaeshke
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Patent number: 9273694Abstract: A method of upgrading a 1,500 rpm reactor coolant pump motor having a vertically oriented rotor shaft supported by a lower guide bearing disposed in an oil reservoir. The method includes removing a lower guide bearing support to enhance circulation of the oil to facilitate cooling of the oil and operating the reactor coolant pump motor at 1,500 rpm without the lower guide bearing support or the oil baffle or flinger ring attached to the lower guide bearing support. The method further includes thickening a keeper to support the guide bearing.Type: GrantFiled: June 29, 2009Date of Patent: March 1, 2016Assignee: Westinghouse Electric Company LLCInventors: David R. Brady, Thomas G. Loebig
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Patent number: 9206811Abstract: A remanufactured pump includes a casing and a pumping mechanism positioned within the casing having a rotatable pump shaft and an impeller mounted upon the pump shaft and rotatable within a pumping chamber in the casing. A first insert is held fast within a first bore in the casing, and a second insert is held fast within a second bore in the casing, each via an interference fit. Sealing mechanisms are positioned within the first and second inserts to form a first seal about the pump shaft to prevent leakage of a working fluid from the pumping chamber, and a second seal about the pump shaft to prevent leakage of a lubricating fluid from a bearing chamber in the casing. Related methodology is also disclosed.Type: GrantFiled: July 2, 2012Date of Patent: December 8, 2015Assignee: Caterpillar Inc.Inventors: Donald Gene Clark, Curtis John Graham, Jack Maclellan Nix, Caxton Darnell Martin, Jr.
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Patent number: 9206693Abstract: A rotating machine and associated method is disclosed that includes one or more cooling channels for providing a cooling fluid to a component. The cooling channels pass through a rotating component. The rotating machine further includes one or more particle separation slots in the rotating component in fluid communication with the one or more channels for removing particulate contamination.Type: GrantFiled: February 18, 2011Date of Patent: December 8, 2015Assignee: General Electric CompanyInventors: Daniel Hynum, Andrew P. Giametta
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Patent number: 9194256Abstract: A rotating machine comprising such as an axial power turbine or a turbocharger has a housing with a bearing cavity and a chamber separated by a first wall. A shaft is rotatable about an axis in the bearing cavity, extends through an opening in the first wall and is mounted for rotation on a bearing assembly provided in the bearing cavity. An oil sealing arrangement including an oil diffuser device is arranged on the shaft for displacing oil away from the shaft as it rotates. This restricts the flow of oil to the opening. The oil diffuser device defines a diffuser passage between the bearing assembly and the first wall, the passage extending outwardly of the axis.Type: GrantFiled: April 1, 2010Date of Patent: November 24, 2015Assignee: CUMMINS TURBO TECHNOLOGIES LIMITEDInventor: Matthew J Purdey
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Patent number: 9194304Abstract: During engine braking of a turbocharged internal combustion engine, the exhaust gas pressure increases and this is used to pressurize the seals between the turbocharger shaft and the bearing housing so as to prevent oil leakage into the compressor housing. Immediately after engine braking, stored exhaust gas pressure is used to pressurize the seals at the turbine end so as to prevent oil leakage into the turbine housing. In an alternative arrangement the exhaust gas is used to generate a reduced pressure in the bearing housing to increase the pressure gradient across the seals.Type: GrantFiled: July 2, 2013Date of Patent: November 24, 2015Assignee: Cummins Turbo Technologies LimitedInventor: Pierre French
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Patent number: 9175608Abstract: A floating air riding seal for a gas turbine engine with a rotor and a stator, an annular piston chamber with an axial moveable annular piston assembly within the annular piston chamber, an annular cavity formed on the annular piston assembly that faces a seal surface on the rotor, and a central passage connecting the annular cavity to the annular piston chamber to supply compressed air to the seal face, where the annular piston assembly is a split piston assembly to maintain a tight seal as coning of the rotor disk occurs.Type: GrantFiled: March 11, 2013Date of Patent: November 3, 2015Assignee: Florida Turbine Technologies, Inc.Inventor: Jacob A Mills
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Patent number: 9086075Abstract: Embodiments of the invention provide an impeller and a method of producing the impeller. The impeller includes a first molded piece coupled to a second molded piece. The first molded piece includes impeller vanes, a motor hub, a nose, and an eye. The second molded piece includes a cover and a hole through the cover. The cover is coupled to the impeller vanes around the motor hub so that the motor hub extends through the hole.Type: GrantFiled: July 7, 2011Date of Patent: July 21, 2015Assignee: Pentair Water Pool and Spa, Inc.Inventors: James Miller, Ronald Robol, Rick Langlois
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Patent number: 9080572Abstract: A fluid pump includes a primary impeller and a secondary impeller disposed on a common drive shaft within a pump housing. The pump housing including a respective diffuser or volute therein for each of the primary impeller and the secondary impeller. A fluid passage is formed within the housing connecting a discharge of the primary impeller to an intake of the secondary impeller. Each of the primary and secondary impellers has a respective outlet port.Type: GrantFiled: December 21, 2012Date of Patent: July 14, 2015Inventor: William E. Murray
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Patent number: 9033651Abstract: A system, in certain embodiments, includes a seal assembly having a seal body. The seal body includes an inlet buffer port and an outlet eduction port. The inlet buffer port is configured to receive a compressed buffer gas, such as shop air, which is injected into the inlet buffer port. The compressed buffer gas blocks the flow of a compressed process gas, such as land fill gas, by opposing the flow of the compressed process gas through the seal assembly. Both the compressed buffer gas and the compressed process gas may be expelled through the outlet eduction port.Type: GrantFiled: April 22, 2010Date of Patent: May 19, 2015Assignee: Ingersoll-Rand CompanyInventors: Edward S. Czechowski, Michael A. Nuchereno, Paul A. Leising, Nathan P. Vetter
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Publication number: 20150125324Abstract: The present invention concerns a rotary compressor for compressing a gaseous medium, comprising an impeller (2), a drive unit (3) and a magnetic coupling (4) comprising a rotating inner rotor (41), a rotating outer rotor (42) and a can (43), wherein the inner rotor (41) is connected to the impeller (2), wherein the impeller (2) comprises a continuous solid portion (25), wherein a first row (21) and a second row (22) of blades (23) are provided at the outer circumference of the solid portion (25) of the impeller, the first and second row of blades being separated by a circumferential middle wall (20), and wherein the blades (23) of the first row (21) are offset in circumferential direction relative to the blades (23) of the second row (22).Type: ApplicationFiled: October 18, 2012Publication date: May 7, 2015Applicant: EAGLEBURGMANN GERMANY GMBH & CO. KGInventors: Timothy D. Sanford, Garrett Landry, Stephen Mccurdy, Ron Mcculloch, Glenn Schmidt, Michael Sattler, Norbert Gentz, Dieter Pfeil
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Patent number: 9004849Abstract: 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: GrantFiled: January 10, 2012Date of Patent: April 14, 2015Assignee: United Technologies CorporationInventors: Peter M. Munsell, Philip S. Stripinis
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Patent number: 8992213Abstract: An apparatus for sealing a fan drive shaft in a vacuum heat treating furnace is disclosed. The sealing apparatus includes a housing having an annular body and a central opening. An inflatable first seal surrounds the central opening of the annular body. A second seal surrounds the central opening and is adjacent to the inflatable first seal. The sealing apparatus also includes a channel formed in the annular body adjacent to the second seal for conducting a purging fluid into the central opening. A means for injecting the purging fluid into the central opening is operably connected to the channel. A vacuum heat treating furnace and a fan drive system incorporating the sealing apparatus are also described.Type: GrantFiled: February 3, 2010Date of Patent: March 31, 2015Assignee: Ipsen, Inc.Inventors: Craig Moller, Werner Hendrik Grobler, Jake Hamid
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Publication number: 20150086332Abstract: A turbocharger may include a shaft having a central hole longitudinally formed therein, a supply hole for supplying oil to the central hole, and an exhaust hole for discharging the oil from the central hole to the outside of the shaft. The turbocharger may also include a turbine disposed at a side of the shaft and rotated by an exhaust gas, a compressor disposed at the other side of the shaft and compressing intake air, a bearing rotatably supporting the shaft, and a center housing mounted with the bearing.Type: ApplicationFiled: December 31, 2013Publication date: March 26, 2015Applicants: HYUNDAI WIA CORPORATION, HYUNDAI MOTOR COMPANYInventors: Sung-Jin Yang, SEUNG YEON LEE, KWANG HWAN KIM, KYUNG-WOOK JIN, Ui Yeon Park, JUN GWAN PARK, Gil-Beom Lee, Kyung-Jae Jung
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Patent number: 8979478Abstract: A bearing and seal assembly for supporting and sealing a terminating outboard end of an impeller shaft in a centrifugal pump such as a between-bearings pump includes only one seal but provides advantages typical of a dual-seal assembly, including barrier fluid protection against seal damage caused by abrasive slurries, and protection against leaking of toxic process fluid to atmosphere. A bearing housing sealed to the pump's pressure casing encloses the seal, bearing, and terminating impeller shaft end. Leakage of process fluid past the seal is prevented by a lubricating, pressurized, cooled barrier fluid which is circulated through the bearing housing by an external pump and/or by an internal, shaft-driven impeller. Because the impeller shaft terminates within the bearing housing and does not penetrate to atmosphere, the barrier fluid is contained within the bearing housing and a second seal is not required.Type: GrantFiled: March 30, 2012Date of Patent: March 17, 2015Assignee: Flowserve Management CompanyInventor: Dale B. Andrews
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Patent number: 8973361Abstract: Provided is a seal air supply system including: a seal air compressor 73 provided separately from an exhaust gas turbine turbocharger 27 to generate compressed air; a seal air supply passage 77 through which the compressed air is supplied to a seal air supply part 79 as seal air of the exhaust gas turbine turbocharger 27; and a surplus air inlet passage 81 bifurcating from the seal air supply passage 77 and guiding surplus air of the seal air to an outlet side of an intake gas compressor 27a of the exhaust gas turbine turbocharger.Type: GrantFiled: June 16, 2011Date of Patent: March 10, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yuuichi Shimizu, Hajime Suzuki, Hideki Nishio
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Publication number: 20150052872Abstract: Thermal isolating service tubes and assemblies thereof for gas turbine engines are provided. The thermal isolating service tube comprises an inner tubular member defining a fluid passage and at least one outer tubular member disposed about the inner tubular member. A spacing volume is defined between at least the inner tubular member and an adjacent outer tubular member. The thermal isolating service tube comprises a unitary structure and has at least one portion with a curved configuration, a non-circular cross-sectional shape, or both.Type: ApplicationFiled: August 20, 2013Publication date: February 26, 2015Inventors: Ed Zurmehly, Cristopher Frost, Michael O'Brien, Donald G Godfrey
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Patent number: 8961102Abstract: A system and method for sealing a shaft disposed for rotation within a casing, where two axially-spaced seal rings of an oil film seal extend around the shaft and define a clearance therebetween. Oil is pumped into the clearance from an oil reservoir and a portion of the oil is received in an annular port defined in the casing between an outer labyrinth seal and one of the axially-spaced seal rings. The oil mixes with a process gas to for an oil and gas mixture. A blower is in fluid communication with the annular port and circulates the oil and gas mixture to a trap where the oil is separated from the process gas and a separated process gas is returned back to the annular port.Type: GrantFiled: June 6, 2012Date of Patent: February 24, 2015Assignee: Dresser-Rand CompanyInventor: Philippe Auber
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Patent number: 8961100Abstract: An exemplary valve device for controlling flow of a turbomachine fluid includes a housing and a flow control assembly within the housing. The housing has a first inlet, a second inlet, and an outlet. Movement of the housing to a first orientation causes the flow control assembly to move to a first position to restrict flow of a turbomachine fluid into the housing through the second inlet. Movement of the housing to a second orientation causes the flow control assembly to move to a second position to restrict flow of the turbomachine fluid into the housing through the first inlet.Type: GrantFiled: August 29, 2011Date of Patent: February 24, 2015Assignee: United Technologies CorporationInventors: Enzo DiBenedetto, Francis Parnin, Robert E. Peters