Including Additional Means For Motivating Fluid Flow To Or From Motor (e.g., Auxiliary Pump, Pump Fluid Induced Flow Path, Etc.) Patents (Class 417/368)
  • Patent number: 10830242
    Abstract: A centrifugal pump for delivering coolant in vehicles and providing a centering of a pump impeller and a dampening of motor vibrations. The centrifugal pump having a pump housing consisting of a pump head, which forms a single part with a suction nozzle, a discharge nozzle, a spoke, and a bearing support, in which a counter bearing is mounted, in which a first region of a shaft is supported, around which a pump impeller is rotatably mounted via a slide bearing secured in the pump impeller, the spoke retaining the bearing support in a central position within the pump head and having a containment shell, which separates a wet chamber from a dry chamber and in which a second region of the shaft is supported. The invention seeks to solve the problem of providing in a generic centrifugal pump.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 10, 2020
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Jürgen Ehrsam
  • Patent number: 10811927
    Abstract: An electric motor built for exposure to high pressure fluid includes a unitary metal sleeve that provides a fluid barrier between the rotor and the stator. An overmolded resin encapsulates the stator windings and reinforces the sleeve to minimize deformation of the sleeve under high fluid pressures. The overmolded resin also fixes the positions of insulation displacement connectors connected to the stator windings, thereby avoiding mechanical brackets and fasteners for holding the insulation displacement connectors in position.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: October 20, 2020
    Assignee: Moog Inc.
    Inventors: Matthew Allen Carroll, Lee L. Snider, Mohammad Khandan-Barani, Ronald G. Flanary, Allen Duncan, Travis S. King
  • Patent number: 10711799
    Abstract: Systems and methods for maintaining a desired differential pressure between a cooling oil of an electric motor and a process gas working fluid of a compressor connected axially to the electric motor. The cooling oil acts as a coolant for the motor compartment of the electric motor and the gas working fluid acts as a coolant for the rotor compartment of the electric motor. At least one bellow is configured to provide two sealed compartments in a pressure equalizer and a spring means is configured to add a differential pressure to the cooling oil, assuring no leaks between the two fluids flows from the cooling oil to the process gas working fluid and no contact of the process gas working fluid with the electric motor stator, in particular electric motor laminations and electric motor windings.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 14, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Massimiliano Mariotti, Claudia Cagnarini, Francesco Del Medico
  • Patent number: 10634148
    Abstract: A motor-fan assembly includes a motor assembly having a tubular core with a rotatable shaft extending therethrough. The assembly includes a working fan assembly which has at least one working fan rotated by the rotatable shaft. A blower housing separates the motor assembly from the working fan assembly, wherein the rotatable shaft extends through the blower housing.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 28, 2020
    Assignee: AMETEK, INC.
    Inventors: Kris D. Diehl, Mark D. McCourt, Robert A. Ciccarelli, Jr.
  • Patent number: 10605236
    Abstract: A hydrostatic compact assembly includes an electric motor, a tank, and a pump. The pump is configured to deliver a pressure fluid from the tank to a consumer connection. The tank has a circular ring-like shape that surrounds the electric motor and the pump.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: March 31, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Guender
  • Patent number: 10516316
    Abstract: A housing for an electric machine may include an outer housing (2), an inner housing (3) arranged in the outer housing (2) and an intermediate casing space (5) formed between the outer housing (2) and the inner housing (3) as seen in a radial direction with respect to a stator axis (4). The outer housing and the inner housing (2, 3) may be pot-shaped and in each case have a base (9, 10) such that a base intermediate space (11) is formed between the base (9) of the outer housing (2) and the base (10) of the inner housing (3). The housing may further include a plurality of cooling ribs (8) running in an axial direction in the intermediate casing space (5) such that the cooling ribs extend into the base intermediate space (11) and run in a radial direction in the base intermediate space (11).
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: December 24, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Camilo Carrillo, Karthick Govindasamy, Patrizia Schoellig-Alt, Stephan Geise
  • Patent number: 10337530
    Abstract: A fan shroud assembly (10) includes a fan shroud (14) having a boss (54) formed thereon, and a shield (22) having an aperture (58) and at least one slot (62) communicating with the aperture to allow deflection of the shield in a region adjacent the aperture. The aperture is smaller than the boss such that the aperture receives the boss with an interference fit, causing deflection of the shield, to secure the shield on the fan shroud.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: July 2, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Todd King, Andrew Leighton
  • Patent number: 10193416
    Abstract: A BLDC motor for driving a cross flow fan in an air-conditioning application has an external rotor and an internal stator. The stator is a salient pole stator with insulated pole teeth and conductor coils. The inner diameter of the stator supports a single bearing. An electronic PCBA for control of the BLDC motor is optionally attached to the stator, all of which is encapsulated in a thermoset resin. The rotor comprises permanent magnet component(s) and a rotor frame. The rotor frame includes a stub axle that engages with the bearing element and features to provide torsional or rotational compliance between the rotor magnets and the fan. A level of compliance is provided between the bearing element and the stator to allow for angular misalignment between the rotational axis of the fan and the stator.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: January 29, 2019
    Assignee: Fisher & Paykel Appliances Limited
    Inventors: Timothy Scott Germann, Gerald David Duncan, Gregory Paul Hill
  • Patent number: 10107301
    Abstract: The invention relates to a rotor hub assembly for an electric fan, in particular for a radiator fan of a motor vehicle, comprising a hub cup, which rotates during operation and which has air outlet guides on the inside of the hub cup, which air outlet guides are arranged and shaped in such a way that the air outlet guides guide and accelerate cooling air, wherein a magnetic return cup is arranged inside the hub cup, which return cup has air passage openings, which, together with the air outlet guides, form continuous air outlets for a cooling air flow from the pressure side to the vacuum side of the fan. The invention further relates to an electric fan having such a rotor assembly.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: October 23, 2018
    Assignee: BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFT, WURZBURG
    Inventors: Andre Evers, Franziska Rohm, Alexander Gass, Sascha Dresbach, Tilman Schafer
  • Patent number: 10018116
    Abstract: A gas turbine engine includes a first zone and a second zone downstream from the first zone. A buffer system can communicate a buffer cooling air to at least the first zone. A bleed source can communicate a bleed air to the second zone.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: July 10, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: William K. Ackermann, Philip S. Stripinis
  • Patent number: 9885357
    Abstract: A hermetic compressor includes a hermetic container having a bottom portion in which lubricating oil is stored and an electric motor including a stator and a rotator. The hermetic compressor further includes a drive shaft attached to the rotator and a compression mechanism for compressing refrigerant by using rotation of the drive shaft. The hermetic compressor also includes a rotary pressure increasing mechanism for increasing a pressure of refrigerant gas, the rotary pressure increasing mechanism being arranged on the rotator, and a cylindrical lateral wall for partitioning a space above the electric motor into an outer space and an inner space in a manner that the a cylindrical lateral wall surrounds the rotary pressure increasing mechanism. Finally, the hermetic compressor includes a discharge pipe for allowing the refrigerant to flow out from the inner space into an external circuit that is external to the hermetic container.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: February 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuhide Yokoyama, Teruhiko Nishiki, Shogo Moroe, Taro Kato, Keisuke Shingu, Shin Sekiya, Toshihide Koda
  • Patent number: 9843234
    Abstract: An electric machine for a vehicle, in particular for a utility vehicle, includes a rotor mounted rotatably on a shaft and a stator surrounding the rotor, at least one device of the electric machine located in at least one pressure chamber which is subjected at least intermittently to an overpressure which is elevated with respect to the ambient pressure. The over pressure in at least one pressure chamber protects against ingress of water.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: December 12, 2017
    Assignee: MAN TRUCK & BUS AG
    Inventors: Andreas Dietmair, Ulrich Harres
  • Patent number: 9835153
    Abstract: A variable displacement oil pump includes: a variable displacement mechanism that is able to change a discharge amount per rotation of an input shaft. The variable displacement mechanism includes a pump housing, an oil pressure chamber provided in the pump housing, and a capacity adjustment member displaced by oil pressure from the oil pressure chamber. The capacity adjustment member is configured to be operated when receiving control oil pressure that is supplied from a control valve to the oil pressure chamber. The pump housing has an oil release hole that is opened to face the oil pressure chamber and that penetrates a wall section of the pump housing to partially release oil.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: December 5, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki Tsuge, Noboru Takagi, Shinichiro Ito, Yuki Nishida, Hisashi Ono
  • Patent number: 9488181
    Abstract: A fan module (1) includes a support structure (2), a motor (6), and an impeller (12). The support structure (2) includes an outer frame (3), an inner seat (5), and spokes (4) connecting the outer frame (3) to the inner seat (5). The motor (6) includes a stator (7) fixed to the inner seat (5), a rotor (8) rotatably mounted to the stator (7), a heat sink (11) at one end of the stator (7), and a control circuit (9) in thermal contact with the heat sink (11). The impeller (12) includes a hub (13) having a front wall (13a), a side wall (13b) spaced from the front wall (13a), and inner vanes (17) extending from the side wall (13b) and connected to the front wall (13a). Top ends of two adjacent inner vanes (17) are spaced from each other with an intake opening (17c) defined therebetween.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 8, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Davide Parodi, Piergiorgio Innocenti
  • Patent number: 9239054
    Abstract: A compressor may include a shell, a compression mechanism, a motor, a pumping mechanism, and a heat exchanger. The shell may define an internal cavity and an oil sump. The compression mechanism is disposed the said shell. The motor is coupled to a driveshaft for selectively powering the compression mechanism. The pumping mechanism may be in fluid-pumping communication with the oil sump. The first heat exchanger may be disposed external from the shell and in fluid communication with the pumping mechanism. The first heat exchanger may cool the oil prior to returning the cooled oil to the internal cavity.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: January 19, 2016
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Kirill M. Ignatiev, Ronald E. Bonear, Robert C. Stover
  • Patent number: 9206567
    Abstract: The air-blow working machine comprises a fan provided in a fan casing and a drive unit to drive the fan, and discharges an airflow generated by the rotating fan. The fan casing has an inner wall disposed between the fan and the drive unit. A smooth surface is formed on the face of the inner wall on the side of the fan. A first concavo-convex portion is formed on the face of the inner wall on the side of the drive unit. Thereby, a noise is reduced without an influence upon performance for blowing air.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: December 8, 2015
    Assignee: Yamabiko Corporation
    Inventors: Yusuke Kinoshita, Yoshihiro Yamauchi
  • Patent number: 9181949
    Abstract: A scroll compressor that includes a shell and scroll compressor bodies disposed in the shell. The scroll bodies include a first scroll body and a second scroll body, where the first and second scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs are configured to mutually engage, and the second scroll body is movable relative to the first scroll body for compressing fluid. A pilot ring engages a perimeter surface of the first scroll body to limit movement of the first scroll body in the radial direction. Further, the shell includes different inner diameters to facilitate press fitting a motor into the shell where the motor includes lubricant flow passages.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 10, 2015
    Assignee: BITZER Kuehlmaschinenbau GmbH
    Inventors: Ronald J. Duppert, James W. Bush, Kenneth D. Heusler
  • Patent number: 8992187
    Abstract: An air-cooled reciprocating compressor for vehicles includes a compressing unit, which has a plurality of cylinders and is driven by a motor and has a fan for generating a cooling air flow. The fan is disposed on a connecting shaft between the motor and the compressing unit and takes in cooling air from the surroundings and delivers cooling air to a downstream cooling air duct, wherein the cooling air duct at least partially surrounds the cylinders and is designed such that cooling air can flow around all in-line cylinders of the compressing unit.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 31, 2015
    Assignee: KNORR-BREMSE Systeme fuer Schienenfahrzeuge GmbH
    Inventors: Michael Hartl, Juergen Mendel, Joerg Mellar, Matthias Fritz
  • Publication number: 20150023817
    Abstract: A canned motor pump that includes a pipe-shaped can part which accommodates a rotor, a plurality of supports protruding radially outward from sides of the can part, and a plurality of the split cores each of which is inserted inside a corresponding support of the supports. Each distal end of the split cores extends in a direction toward a corresponding insulator part. A plurality of insulator parts are respectively formed on distal ends of the supports. An annular outer ring surrounds the outer circumference of the insulator parts. The inner circumference of the outer ring adjoins to exposed outermost ends of the split cores. Coils then are wound on the supports to provide a can motor pump with fewer parts and better performance.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 22, 2015
    Inventors: Hark Koo Kim, Seung Yong Lee, Chi Myung Kim, Jong Won Park, Chang Gook Lee
  • Patent number: 8920138
    Abstract: A motor pump unit for a high-pressure cleaning apparatus has an electric motor and a pump. The electric motor has a motor housing that is surrounded by a cooling housing with an annular space having an annular space inlet and an annular space outlet formed therebetween. The pump has a drive housing on which is supported the motor shaft, and has a suction inlet and a pressure outlet. The annular space outlet is fluidly connected to the suction inlet and liquid to be pressurized by the pump is suppliable to the annular space inlet. In order to improve the motor pump unit such that the heat load on the drive housing can be reduced, the drive housing has at least one cooling passage which is arranged upstream of the suction inlet and through which the liquid to be pressurized can flow.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 30, 2014
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventors: Walter Schiffhauer, Lanfranco Pol
  • Patent number: 8920137
    Abstract: A flow-conditioning system includes a pump, process tubing coupling the pump to a source of multiple component process fluid, and an in-line flow-mixing device positioned in the process tubing upstream of the pump. A system includes a well disposed below a body of water and providing a source of multiple component fluid, a pump disposed in and exposed to the water, process tubing coupling the pump to the well, and an in-line flow-mixing device positioned in the process tubing upstream of the pump.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: December 30, 2014
    Assignee: FMC Technologies, Inc.
    Inventors: Christopher E. Cunningham, Rune Fantoft, Terje Hollingsaeter
  • Publication number: 20140314589
    Abstract: Disclosed herein is a compressor in which oil retained in a hermetic case may be raised through an inner circumferential surface of a rotating shaft. The rotating shaft is provided with a hollow portion, and a fixation shaft with a spiral wing is inserted into the hollow portion to raise oil. Also, a spiral groove is formed on an outer circumferential surface of the rotating shaft to cause the raised oil to descend and lubricate the outer circumferential surface of the rotating shaft, and the hollow portion and the spiral groove are connected to each other via a guide passage.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Jung Hyoun KIM
  • Patent number: 8840380
    Abstract: An annular device for the temperature control of a pump is provided. That device is in fluid communication with the radiator coolant system of a vehicle, and the engine-warmed coolant flows through the annular device to warm the pump and thaw ice buildup. The device is removable and can be added on to an existing pump without any redesign of the existing pump housing.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Tenghua Tom Shieh, Kyle Thomas Bernier, James Guitar, Shohei Nomura
  • Patent number: 8807970
    Abstract: A multistage electric motor includes a plurality of motor stages connected in series, each motor stage comprising a stator, and a rotor; a plurality of cooling fluid paths, each cooling fluid path forming a recirculating loop independent of the other cooling fluid paths, each cooling fluid path in communication with the stator of one of motor stages; and a cooling fluid flowing through each cooling fluid path, the cooling fluid removing heat from the stator of each motor stage. A submersible pump including the multistage electric motor, and a method of cooling the multistage electric motor are also described.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 19, 2014
    Assignee: Flowserve Management Company
    Inventors: Behrend Goswin Schlenhoff, Axel Helmut Tank-Langenau, Charles James Powers, Thomas Albers
  • Patent number: 8801398
    Abstract: A turbocompressor assembly is provided, which is divided along a rotor axis into at least three sections. The three sections include a bearing section having an active magnetic bearing, a motor section including a motor having a stator arranged along the rotor axis, the stator enclosing a circumferential motor gap formed between the stator and the rotor, and a compressor section having a compressor for compressing a cooling fluid. A gas-tight housing encloses the rotor, the bearing section, the motor section and the compressor section. A cooling system is provided having an inlet for supplying the pressurized cooling fluid to the bearing section and the motor section through a fluid channel positioned between the bearing section and the motor section. The cooling system includes a throttling device positioned adjacent to the motor gap for limiting the flow of cooling fluid from the fluid channel to the motor gap.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: August 12, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Gerard Korenblik
  • Patent number: 8801399
    Abstract: Disclosed herein is a compressor in which oil retained in a hermetic case may be raised through an inner circumferential surface of a rotating shaft. The rotating shaft is provided with a hollow portion, and a fixation shaft with a spiral wing is inserted into the hollow portion to raise oil. Also, a spiral groove is formed on an outer circumferential surface of the rotating shaft to cause the raised oil to descend and lubricate the outer circumferential surface of the rotating shaft, and the hollow portion and the spiral groove are connected to each other via a guide passage.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jung Hyoun Kim
  • Patent number: 8739933
    Abstract: An oil pump is applied to a compressor which comprises a shell (1) inferiorly defining an oil reservoir (3) and carrying: a cylinder block (2) in which is journalled a crankshaft (4) carrying a pump body of the oil pump, said pump body (11) having a lower end (lib) immersed in the oil (3) and comprising: at least one collecting wall portion (12) eccentric in relation to the axis of rotation of the crankshaft (4) and which is deformed to present at least one open step (13) disposed in a plane secant to a cross section of the pump body (11) in the region of said collecting wall portion (12) and defining an opening (13a) for admitting oil to the interior of the pump body (11); and an inner impeller wall portion (14) defining a deflector transversal to the direction of admission of the oil through the open step (13) and which, with the rotation of the pump body (11), impels said oil axially and ascendingly.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 3, 2014
    Assignee: Whirlpool S.A.
    Inventors: Nilson Wagner, Sergio Luiz Magnhoto, Joao Manoel Mendes
  • Publication number: 20140127050
    Abstract: An electrical motor includes a motor case, a rotor that is housed in the motor case and rotatable about a rotor shaft, a stator that is provided around the rotor in the motor case and configured by winding a stator coil around a stator core, and a first spray nozzle that is provided in the motor case for spraying liquid coolant toward an inner circumferential surface of the motor case. The stator coil has a first coil end protruded from the stator core along a direction of the rotor shaft. The first spray nozzle is configured to spread the coolant as mist by splashing the coolant on the inner circumferential surface to make the spread mist over the first coil end. The first coil end can be cooled sufficiently by vaporization heats of the mist coolant that is fallen over it.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 8, 2014
    Applicant: IHI Corporation
    Inventors: Kentarou Oda, Nobuyoshi Sakuma, Seiichiro Yoshinaga
  • Patent number: 8708675
    Abstract: Systems and methods of cooling a motor of an electrical submersible pump (ESP) assembly employed in an electrical submersible subsea booster pumping system, are provided. A supporting frame structure such as an ESP mounting skid or top end assembly of a caisson having structural members exposed to environmental seawater, is modified or designed to include fluid conduits within the structural members to establish lubricant pathways for lubricant to flow. A heated/hot lubricant line connects between a supporting structure lubricant inlet port and an ESP motor lubricant outlet port. A cooled lubricant line connects between a supporting structure lubricant outlet port and an ESP motor lubricant inlet port. A pump or other fluid moving device circulates lubricant from the ESP motor to the lubricant pathways within the supporting frame structure, whereby the seawater cools the lubricant contained therein, which is then circulated back into the motor to assisting cooling the motor.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 29, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ignacio Martinez, Donn J. Brown, John J. Mack, Steven K. Tetzlaff, Dan A. Merrill
  • Patent number: 8696327
    Abstract: An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over the circulation tubes.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: April 15, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Michael A. Forsberg
  • Patent number: 8608457
    Abstract: A device for driving a drum (1) about the axis thereof, including a motor (2) which is mounted at least partially inside the drum (1) and a transmission (7) disposed between the motor (2) and the drum (1), characterized in that it further includes a device (10) enabling a forced current of cooling air to be created in a space (13,14) between the motor (2) and an inner wall of the drum (1).
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: December 17, 2013
    Assignee: Dynaco Europe NV
    Inventor: Benoit Coenraets
  • Publication number: 20130323096
    Abstract: A diagonal ventilating fan (30) has a fan housing (36) and a fan wheel (80), rotatable around a rotation axis, that has associated with it an electric motor (73) to drive it, the fan wheel (80) extending in the direction of the rotation axis between an air inlet side and an air outlet side of the diagonal ventilating fan (30) and serving, as it rotates, to convey air in a main delivery direction from the air inlet side to the air outlet side. The fan wheel (80) has a preferred rotation direction so that, during operation, its blades (82) each have a front side and a back side, and a negative-pressure zone (110) occurs, during operation, adjacent each respective back side of a blade (82). An auxiliary cooling air blower (76) connects to the respective zones (110) to provide an improved flow of cooling air for the electric motor (73).
    Type: Application
    Filed: March 20, 2012
    Publication date: December 5, 2013
    Inventors: Martin Mueller, Arno Karwath, Harald Schmid, Tobias Maier, Gerald Hogg, Michael Schmitz, Bjorn Winter
  • Patent number: 8597000
    Abstract: The present invention discloses structure improvement of a canned motor pump, and more particular to a canned motor pump which is a plastic pump or a pump with plastic lining to transfer chemical liquids, wherein a support structure of a rotor system is improved to provide a high-rigidity cantilever stationary shaft to satisfy all kinds of requirements.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 3, 2013
    Assignee: Assoma Inc.
    Inventors: Huan-Jan Chien, Ching-Chang Wang, Chih-Kuan Shih
  • Publication number: 20130315755
    Abstract: A temperature control system for an electrical machine and a method of operating the system is provided. The machine includes a housing enclosing a motor and a compressor, the housing includes a suction pipeline in flow communication with the compressor. The suction pipeline is configured to channel fluid into the housing. A temperature control system assembly includes a fluid mover coupled to at least one of the rotor shaft and the compressor shaft and in flow communication with the suction pipeline upstream from the compressor. The fluid mover is configured to channel the fluid from the suction pipeline and across at least one of the motor and the compressor. Temperature control system includes a distribution header coupled to the housing and in flow communication with the fluid mover, the distribution header includes a first outlet coupled in flow communication to the motor to channel the fluid across the motor.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Inventors: Ilia Oxman, William Dwight Gerstler, Mark John DeBlock, Jeremy Daniel Van Dam, Michael John Douglass, Olivier Pellerin
  • Patent number: 8585374
    Abstract: An example fan assembly impeller moves air along a secondary flow path when driven by a motor. The motor also drives a fan rotor to move air along a primary flow path of the fan assembly. Air moving along the primary flow path moves in a first direction. Air moving along the secondary flow path moves in a second direction opposite the first direction. An example fan shroud communicates air used to cool a motor into a primary flow path of a fan assembly. The shroud communicates the air into the primary flow path so that the flow of air is at least partially aligned with air moving through the primary flow path of the fan assembly.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Craig M. Beers, Harold W. Hipsky, Brent J. Merritt, Darryl A. Colson, Roberto J. Perez
  • Publication number: 20130224047
    Abstract: A rotating system includes a drive member and a driven member. The rotating system includes a coupling positioned to rotatably couple the drive member to the driven member and a housing surrounding a portion of the coupling to define an inside and an outside, the housing having a plurality of apertures. A fan is coupled to the coupling and operable to produce a flow of air from the inside to the outside via at least one of the plurality of apertures, and a guide tube is positioned within one of the plurality of apertures to guide a flow of air from the outside to the inside.
    Type: Application
    Filed: December 14, 2012
    Publication date: August 29, 2013
    Inventor: David F. Rowe, JR.
  • Patent number: 8491277
    Abstract: A submersible motor pump includes a water jacket having a circulation passage of a coolant, a centrifugal impeller for circulating the coolant, a suction passage configured to provide fluid communication between the circulation passage and a fluid inlet of the centrifugal impeller, and a discharge passage configured to provide fluid communication between a fluid outlet of the centrifugal impeller and the circulation passage. The discharge passage includes a heat-exchange passage formed by two wall surfaces, one of which is constituted by a member which contacts a liquid conveyed by a main impeller. The heat-exchange passage has a circular shape extending radially outwardly from the fluid outlet of the centrifugal impeller. The heat-exchange passage includes at least one axial passage section having a length component in an axial direction of the rotational shaft.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 23, 2013
    Assignee: Ebara Corporation
    Inventors: Junya Kawabata, Chikara Makino, Shunichi Aiyoshizawa
  • Patent number: 8465265
    Abstract: Apparatus and methods are provided for cooling motors used to drive gas and air compressors. In particular, the cooling of hermetic and semi-hermetic motors is accomplished by a gas sweep using a gas source located in the low-pressure side of a gas compression circuit. The gas sweep is provided by the creation of a pressure reduction at the compressor inlet sufficient to draw uncompressed gas through a motor housing, across the motor, and out of the housing for return to the suction assembly. The pressure reduction is created by means provided in the suction assembly, such as a nozzle and gap assembly, or alternatively a venturi, located upstream of the compressor inlet. Additional motor cooling can be provided by circulating liquid or another cooling fluid through a cooling jacket in the motor housing portion adjacent the motor.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 18, 2013
    Assignee: Johnson Controls Technology Company
    Inventor: Paul de Larminat
  • Patent number: 8303269
    Abstract: A vacuum pump for producing low or high vacuum has a housing having a gas inlet and a gas outlet, a pumping system located in the housing, a motor for driving the pumping system, and a control electronics for controlling operation of the pump and likewise located in the housing, with the pumping system and the control electronics being located in separate housing sections of the housing.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 6, 2012
    Assignee: Pfeiffer Vaccum GmbH
    Inventors: Juergen Metzger, Juergen Wagner, Stefan Saenger
  • Patent number: 8251676
    Abstract: An axial-flow fan for a vehicle radiator includes a fan wheel that delivers the main air flow and is driven by a hub motor coupled to the fan wheel. The vehicle radiator is on the intake side of the fan wheel, the hub motor during operation is cooled by a secondary air flow, and the cooling air flow of the hub motor flowing out from an air outlet opening is on the intake side in the hub area of the fan wheel. An air baffle device including a propeller is assigned to the hub motor and the cooling air flow passing through the air baffle device is led out of the air outlet opening, avoiding disturbances of the main air flow delivered by the fan wheel.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: August 28, 2012
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
    Inventors: Karl-Heinz Fleischmann, Stefan Berg, Alexander Gass
  • Patent number: 8215926
    Abstract: A sealed compressor includes a housing for receiving a compressor pump unit and an electric motor. The electric motor drives a driveshaft. The driveshaft extends to drive an element within the compressor pump unit to compress a fluid. The motor includes a rotor spaced from a portion of the housing by a gap. The driveshaft drives a counterweight, which has a radially outermost portion extending radially outwardly beyond a radially innermost portion of the stator. The radially outermost portion of the counterweight has an angled face to drive fluid into the gap.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: July 10, 2012
    Assignee: Danfoss Scroll Technologies, LLC
    Inventors: Gene Fields, Joe T. Hill
  • Patent number: 8167585
    Abstract: Certain exemplary embodiments can comprise a system, which can comprise an electric motor cooling fan. The electric motor cooling fan can be driven by an auxiliary motor distinct from an electric motor adapted to be cooled by the electric motor cooling fan. The system can comprise a motor enclosure of the electric motor. The motor enclosure can be configured in a predetermined ventilation pattern.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: May 1, 2012
    Assignee: Siemens Industry, Inc.
    Inventors: Scott Kreitzer, Patric Willems, Ekkehard Ressel
  • Patent number: 8128381
    Abstract: An electric motor comprising a stator of the type having polar expansions of the wound type, a rotor chamber defined by a sealed case, closed by a sealing ring, a permanent magnet rotor, housed inside the rotor chamber and a shaft connected to the rotor. The electric motor comprises a valve which allows outflow of fluid from said rotor chamber; the valve is formed by a through bore provided on the sealing ring and an opposing wall for closing the bore; the wall is provided in a wall of a sealing ring holding disc which is form coupled to the sealing ring.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: March 6, 2012
    Assignee: Askoll Holding S.r.l.
    Inventor: Elio Marioni
  • Patent number: 8113792
    Abstract: A compressor unit is provided. The compressor unit includes a compressor and a motor enclosed by a common casing in a sealless manner. A stator of the motor is cooled by a cooling system. A partition separates a process fluid from a cooling fluid in an area of the stator. Further, a relation between a process fluid pressure and a cooling fluid pressure is established by using a pressure compensator.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: February 14, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Geert De Boer
  • Patent number: 8109741
    Abstract: A pump has a body and a pressurizing barrel. The body has an outlet tube and a magnetic check valve mounted in the outlet tube to prevent a back-flow current from damaging an impeller mounted inside the body. When closed, the magnetic check valve actuates a magnetic switch to signal external devices. The pressurizing barrel has a tank containing liquid for compensating a pressure in the body and a casing. The casing is externally mounted on the pressurizing barrel, defines a notch for receiving a circuit board and has a detachable cap to facilitate maintenance of the circuit board. Accordingly, the pump effectively prevents impeller and motor damage due to the back-flow current. Moreover, the casing facilitates maintenance of the circuit board.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: February 7, 2012
    Inventor: Shou-Hsiung Huang
  • Patent number: 8021127
    Abstract: Apparatus and methods are provided for cooling motors used to drive gas and air compressors. In particular, the cooling of hermetic and semi-hermetic motors is accomplished by a gas sweep using a gas source located in the low-pressure side of a gas compression circuit. The gas sweep is provided by the creation of a pressure reduction at the compressor inlet sufficient to draw uncompressed gas through a motor housing, across the motor, and out of the housing for return to the suction assembly. The pressure reduction is created by structure in the suction assembly, such as a nozzle and gap assembly, or alternatively a venturi, located upstream of the compressor inlet. Additional motor cooling can be provided by circulating liquid or another cooling fluid through a cooling jacket in the motor housing portion adjacent the motor.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: September 20, 2011
    Assignee: Johnson Controls Technology Company
    Inventor: Paul De Larminat
  • Patent number: 8016574
    Abstract: A cooling fan (1) for a motor vehicle has a fan wheel (4) and a brushless fan motor (2) which is used to drive the fan wheel (4). The fan motor (2) has an internal rotor (3). The fan wheel (4) is directly connected to the internal rotor (3) in order to reduce the size of the type of cooling fan (1) whilst retaining the power output.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: September 13, 2011
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft Wuerzburg
    Inventors: Pietro De Filippis, Harald Redelberger
  • Patent number: 7993114
    Abstract: An electric compressor includes a shaft with a forward leading groove and a reverse leading groove both engraved on its outer wall. When a motor rotates forward, the forward leading groove pumps up lubricant through a centrifugal pump thereby lubricating sliding sections of the compressor. The reverse leading groove has a lead directing opposite to that of the forward leading groove, and when the motor rotates reversely due to some reason, the reverse leading groove pumps up the lubricant through the centrifugal pump thereby lubricating the sliding sections.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: August 9, 2011
    Assignee: Panasonic Corporation
    Inventor: Yasushi Hayashi
  • Patent number: 7946831
    Abstract: To improve a compressor for refrigerant, comprising an outer casing, a scroll compressor disposed in the outer casing, a drive unit, disposed in the outer casing, for the second compressor body, having an eccentric drive, a drive shaft running in lying arrangement or approximately horizontally in the outer casing and a drive motor, which includes a stator and a rotor seated on the drive shaft, as well as a lubricant supply, in such a manner that the minimum possible quantity of lubricant is required, it is proposed that a lubricant collection space is disposed in the outer casing, that the lubricant supply has a delivery wheel which delivers lubricant from a delivery sump into a feed space for the drive shaft, and that a lower pressure prevails in a lubricant delivery space accommodating the delivery sump than in the lubricant collection space, so that the lubricant which collects in the lubricant space, on account of the pressure difference, passes into the delivery sump.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: May 24, 2011
    Assignee: Bitzer Kuehlmaschinenbau GmbH
    Inventors: Dieter Roller, Gernot Balz, Thomas Varga
  • Patent number: 7878772
    Abstract: An air-cooled electric motor is provided, which may be used in a compressor assembly, including a motor unit with a motor housing out of which a drive shaft extends, such that the drive shaft drives a ventilator, the ventilator includes at least two radially and/or axially separated ventilator sections to propel a first airstream as well as at least one other, second airstream that is separate from the first airstream, such that the airstreams are conducted separately on both the inflow side of the ventilator and the outflow side of the ventilator.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: February 1, 2011
    Assignee: Kaeser Kompressoren GmbH
    Inventors: Stefan Rexhaüser, Andreas Foerster