With Means To Prevent Heat Transfer Between Pump And Motor Patents (Class 417/373)
  • Patent number: 11319964
    Abstract: A bearing housing for a turbocharger is presented. The bearing housing comprises a bearing housing body configured to receive a rotor shaft along a longitudinal axis of the bearing housing body. The bearing housing further comprises a hub connected to the bearing housing body and defining an opening into the bearing housing body, wherein the opening is configured to receive a rotor shaft bearing. Moreover, the bearing housing comprises at least one arm extending radially from the hub, the at least one arm having a first end connected to the hub and a second end opposite to the first end, wherein the second end of the at least one arm comprises a connection structure configured to connect the bearing housing with a compressor housing of the turbocharger.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 3, 2022
    Assignee: Borg Warner Inc.
    Inventors: Wolfram Schaefer, Grzegorz Rzepka
  • Patent number: 10830250
    Abstract: A water pump includes a pump body, a pump house with a water inlet and a water outlet, and a pump seat is provided. A circular mounting hole penetrating the pump seat is disposed in the pump seat, an annular mounting stage sheathed in the mounting hole is disposed at one end of the pump body, when the mounting stage disposed at one end of the pump body is inserted into the mounting hole, the pump body is configured to rotate around an axis of the mounting hole relative to the pump seat when the mounting stage disposed at the one end of the pump body is inserted into the mounting hole, and the pump house is disposed at one side of the pump seat away from the pump body and is connected with the pump body.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 10, 2020
    Inventor: Bingyan Yu
  • Patent number: 10584692
    Abstract: A liquid supply system providing a stable pump operation even when ultra-low temperature liquid including slurry is set as a liquid feed target. The liquid supply system that supplies ultra-low temperature liquid including a slurry component by expansion and contraction of bellows 41 and 42. At least a region in the bellows 41 and 42 that is in contact with the liquid is coated with resin having a low temperature brittle temperature that is equal to or lower than an operating temperature of the liquid supply system.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: March 10, 2020
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Koichi Mori, Kiyotaka Furuta, Yoshio Osawa
  • Patent number: 10533560
    Abstract: The present invention relates to a direct drive-type turbo blower cooling structure, and more particularly, to a direct drive-type turbo blower which includes a plurality of holes for cooling a stator along an outer diameter of a motor casing and a plurality of holes for cooling a coil part, a bearing housing, and a rotor to enhance cooling efficiency through the plurality of holes during operation of a cooling fan, thereby providing thermal balance.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 14, 2020
    Assignee: TURBOWIN CO., LTD.
    Inventors: Minsoo Kim, Youngkyu Park
  • Patent number: 9982557
    Abstract: A turbocharger unit (10) incorporating variable turbine geometry. The unit (10) has a turbine housing (12) for receiving exhaust gases from an engine, a turbine wheel (14) located inside a turbine housing (12), and a bearing housing (24) connected to the turbine housing (12), having a recessed portion (28). A spring member is located in the recessed portion (28), and a heat shield (32) receives apply force from the spring member. There is also a cartridge for providing variable turbine geometry located in the turbine housing (12); the cartridge is held in contact with the turbine housing (12) by the spring member in the form of a contoured sleeve (26). The apply force received by the heat shield (32) from the spring member transfers through the cartridge, and holds the cartridge in place in the turbine housing.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: May 29, 2018
    Assignee: BorgWarner Inc.
    Inventor: Daniel Ward
  • Patent number: 9331556
    Abstract: A brush motor includes a stator and a rotor. The stator includes multiple magnets attached to an inner surface of a stator housing and a brush assembly fixed relative to the housing. The rotor includes a rotor core and a commutator located in a receiving space defined by a mounting portion and an annular sidewall of the rotor core. The commutator includes multiple conductive segments, each of which has a leg penetrating the rotor core and connected with windings on the rotor core.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: May 3, 2016
    Assignee: Johnson Electric S.A.
    Inventors: Rui Feng Qin, Ji Yu Liang, Yan Bing Li
  • Patent number: 9151226
    Abstract: A corrugated shield comprises a mounting base and a corrugated ring section. The mounting base is disposed at an aft end of the ring section for securing the shield ring section within a generally annular cavity. The generally annular cavity is defined at least in part by a hot fluid flow path boundary wall, and a radially adjacent and spaced apart cold fluid flow path boundary wall. The corrugated ring section is configured to substantially block a line of sight between the hot fluid flow path boundary wall and the cold fluid flow path boundary wall.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: October 6, 2015
    Assignee: United Technologies Corporation
    Inventors: Alisha M. Zimmermann, Christina A. Stenman, Conway Chuong
  • Patent number: 8915719
    Abstract: The present invention teaches providing heating elements into the nose of an intermediate distance piece of a cryogenic reciprocating pump in order to warm the piston packing seals of the pump. The heating elements increase the temperature of the piston packing seals to limit deformation of the seals while the pump is in operation. In addition, a warm, dry vapor purge may be provided to the interior of the intermediate distance piece to reduce or eliminate rime from interfering with the piston packing seals.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 23, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventor: John Charles Street
  • Patent number: 8784076
    Abstract: The invention relates to a turbocharger (1) having a cartridge (K), which is arranged in a turbine housing (2), for the variable turbine geometry, having a bearing housing (3) which is arranged between the turbine housing (2) and a compressor housing of a compressor wheel and in which is arranged a bearing arrangement for a shaft (W) which supports the turbine wheel and the compressor wheel, and having a plate spring (4) which is arranged between the cartridge (K) and the bearing housing (3), wherein the plate spring (4) is constructed from at least two material layers (5, 6) and an isolator (17).
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 22, 2014
    Assignee: BorgWarner Inc.
    Inventors: Dirk Frankenstein, Holger Faeth, Ralf Boening
  • Publication number: 20140154098
    Abstract: A power tool that includes a motor sub-assembly, one or more batteries, and a cooling fan. The motor sub-assembly includes a motor and a motor fan. The one or more batteries are configured to provide power to the motor. The cooling fan is disposed vertically above the motor sub-assembly and the one or more batteries during operation of the power tool, where the cooling fan is configured to draw air in an upwards direction through the cooling fan, thereby dissipating heat from the motor and/or the one or more batteries, and where the upwards direction is the same a free convection direction associated with a density difference between hot air radiating from the motor and/or one or more batteries and surrounding cooler air.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: Finish Thompson Inc.
    Inventor: Douglas A. Cardo
  • Patent number: 8739532
    Abstract: An exhaust heat regeneration system includes: an evaporator for cooling engine cooling water; an expansion device for expanding the refrigerant heated through the evaporator so as to generate a driving force; a condenser for cooling the refrigerant passing through the expansion device to condense the refrigerant; and a pump for pressure-feeding the refrigerant cooled through the condenser to the evaporator, in which: the expansion device is coupled to the pump by a shaft, and the expansion device and the pump are housed within the same casing to constitute a pump-integrated type expansion device; and the pump includes a high-pressure chamber through which the refrigerant to be discharged to the evaporator flows, the high-pressure chamber being provided on the expansion device side, or a low-pressure chamber through which the refrigerant flowing from the condenser flows, the low-pressure chamber being provided on the expansion device side.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: June 3, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuhiko Kawajiri, Minoru Sato, Kazunori Tsuchino
  • Publication number: 20130343924
    Abstract: A mobile high-pressure cleaning device is provided with an underframe, on the upper side of which a storage section is arranged which forms a motor receptacle, into which a motor for driving a pump is inserted, wherein a holding section fixing the motor in the motor receptacle is placed onto the storage section and has a storage compartment for electric parts on its upper side. The holding section can be designed as a hollow body with a base member and a cover mounted on the base member, wherein the base member forms the storage compartment with a base wall engaging over the motor and side walls projecting upwards from it and wherein the cover is movable back and forth between a closed position and an open position and has at least one actuating member for an electric control element on its outer side.
    Type: Application
    Filed: August 27, 2013
    Publication date: December 26, 2013
    Applicant: Alfred Karcher GmbH & Co. KG
    Inventors: Michael Maier, Ralph Seitter
  • Publication number: 20130216405
    Abstract: A cryogenic pump for liquefied gases is provided, which shortens precooling time, has a small loss of cryogenic liquefied gas, excels in pump efficiency, and is advantageous in cost. A motor 1 and an impeller 2 are coupled by a shaft 3 for transmitting a rotative drive force therebetween, and the motor 1 is arranged on an upper side and the impeller 2 is arranged on a lower side. The motor 1 and the impeller 2 exist in an enclosed space 14 where they are communicated with each other and into which the cryogenic liquefied gas is introduced. A heat adjusting unit 11 is provided between the motor 1 and the impeller 2, the heat adjusting unit maintaining existence of the impeller 2 in a liquid phase of the cryogenic liquefied gas and maintaining existence of the motor 1 in a gas phase of the cryogenic liquefied gas.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 22, 2013
    Applicant: Air Water Inc.
    Inventors: Taketo Johchi, Shingo Kunitani, Akira Yoshino
  • Patent number: 8393860
    Abstract: Systems, methods, and devices are disclosed, including a heat exchanger having a manifold with a coolant inlet and a coolant outlet and a plurality of tubes with interiors fluidly connected to the manifold. In some embodiments, the plurality of tubes and the manifold are configured to fit within a bonnet of a compressor.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: March 12, 2013
    Assignee: Cameron International Corporation
    Inventors: Edward S. Czechowski, Andrew Newman, Scott Tackett
  • Patent number: 8323010
    Abstract: An expander-compressor unit (200) includes a closed casing (1), a compression mechanism (2) disposed at an upper position in the closed casing (1), an expansion mechanism (3) disposed at a lower position in the closed casing (1), a shaft (5) coupling the compression mechanism (2) to the expansion mechanism (3), and an oil pump (6) disposed between the compression mechanism (2) and the expansion mechanism (3). The oil pump (6) supplies the oil held in an oil reservoir (25) to the compression mechanism (2) via a suction passage. A strainer (65) is provided to the suction passage so that the oil to be drawn into the oil pump (6) passes through the strainer.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: December 4, 2012
    Assignee: Panasonic Corporation
    Inventors: Shingo Oyagi, Takeshi Ogata, Takumi Hikichi, Masanobu Wada, Yu Shiotani
  • Patent number: 8215928
    Abstract: This invention provides a blower design capable of high temperature operation due to use of a self-sustaining cooling scheme through a sealed motor housing in which a cooling circuit can be created, and the use of a thermal barrier across which a temperature gradient may be formed. The thermal barrier may be formed by a thermal choke plate assembly positioned between a hot side and a cold side of the blower to dissipate heat conducted from the hot side. Alternatively, the thermal barrier may be formed by an internal fan ring provided with the blower's rotating assembly to dissipate heat conducted from the blower's impeller. The thermal choke plate assembly and the fan ring may further be used in combination to block heat transfer by all modes between a hot side and a cold side of the blower.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: July 10, 2012
    Assignee: R&D Dynamics Corporation
    Inventors: Giridhari L. Agrawal, Charles William Buckley, Ali Shakil
  • Patent number: 8182251
    Abstract: An expander-compressor unit (200A) includes a closed casing (1), a compression mechanism (2), an expansion mechanism (3), a shaft (5), and an oil pump (6). The shaft (5) couples the compression mechanism (2) to the expansion mechanism (3) so that power recovered by the expansion mechanism (3) is transferred to the compression mechanism (2). The oil pump (6) is disposed between the compression mechanism (2) and the expansion mechanism (3), and supplies an oil held in an oil reservoir (25) to the compression mechanism (2). An oil supply passage (29) is formed in the shaft (5) so that the oil discharged from the oil pump (6) can be supplied to the compression mechanism (2). A lower end (29e) of the oil supply passage (29) is located below an inlet (29p) of the oil supply passage (29) formed in an outer circumferential surface of the shaft (5).
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 22, 2012
    Assignee: Panasonic Corporation
    Inventors: Yu Shiotani, Takeshi Ogata, Shingo Oyagi, Masanobu Wada, Yasufumi Takahashi
  • Patent number: 8177525
    Abstract: An expander-integrated compressor 200A includes a closed casing 1, a compression mechanism 2, an expansion mechanism 3, a shaft 5, an oil pump 6, and a heat insulating structure 30A. The oil pump 6 is disposed between the compression mechanism 1 and the expansion mechanism 3, and draws, via an oil suction port 62q, an oil held in an oil reservoir 25 to supply it to the compression mechanism 2. The heat insulating structure 30A is disposed between the oil pump 6 and the expansion mechanism 3, and limits a flow of the oil between an upper tank 25a, in which the oil suction port 62q is located, and a lower tank 25b, in which the expansion mechanism 3 is located, so as to suppress heat transfer from the oil filling the upper tank 25a to the oil filling the lower tank 25b.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Yasufumi Takahashi, Hiroshi Hasegawa, Takumi Hikichi, Takeshi Ogata
  • Patent number: 8156756
    Abstract: A fluid machine includes a casing, a compression mechanism for compressing refrigerant, an expansion mechanism for expanding refrigerant, and a rotary shaft connecting the compression mechanism and the expansion mechanism. The compression mechanism, the expansion mechanism and the rotary shaft are disposed in the casing. A heat insulator partitions an internal space of the casing into a first space with the expansion mechanism disposed therein and a second space with the compression mechanism disposed therein. The rotary shaft passes through the heat insulator. An elastically deformable seal element seals a clearance between an outer periphery of the heat insulator and an inner periphery of the casing.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: April 17, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Eiji Kamakura, Katsumi Sakitani
  • Patent number: 8152458
    Abstract: A high temperature centrifugal pump includes non-linear fluid flow paths between the pump housing and seal housing to reduce fluid flow therebetween. In another aspect, the invention provides a drive shaft of variable diameter to compensate for different amounts of thermal expansion to maintain a more consistent gap profile between the drive shaft and thermal insulators or other components positioned around the drive shaft. In yet another aspect, a tube heat exchanger may be placed in fluid communication with the seal housing to re-circulate and cool the fluid therethrough.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: April 10, 2012
    Assignee: MP Pumps, Inc.
    Inventors: Steven E Buell, David M DeClerck
  • Patent number: 8147217
    Abstract: The invention relates to a pump device for feeding a delivery medium out of a deep borehole which leads from a floor level into the interior of the earth, which deep borehole is provided at least in sections with borehole piping, having a pump and having a motor which drives the pump. As a result of the motor being arranged outside the borehole piping and as a result of it being possible for the motor to be connected to the pump by means of torque transmitting means which extend laterally through the borehole piping, the motor can be protected from overheating, and in the event of a fault, can be pulled out of the deep borehole independently of the pump.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: April 3, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jörg Lengert, Roland Lutz, Norbert Weinberg
  • Patent number: 8105053
    Abstract: A turbocharger includes a housing, and a turbine shaft supported in a center hole in the housing through rolling bearings. A tank portion for storing lubrication oil is formed in the housing, and the lubricating oil is supplied from the tank portion to the rolling bearings through wick members extending from the tank portion respectively to the rolling bearings. The wick member includes a bundle of fibers made of a plastics material, and a distal end portion thereof is separated into a fibrous condition, and this distal end portion is held in contact with the bearing. The lubricating oil is supplied to the bearing by a capillary action of the wick member.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 31, 2012
    Assignee: JTEKT Corporation
    Inventors: Hiroshi Ueno, Toshihiko Shiraki, Akio Oshima, Tomonori Nakashita, Masaaki Ohtsuki, Shigenori Bando, Masaki Abe, Ryuji Nakata, Takehisa Kida
  • Publication number: 20110081262
    Abstract: To provide a motor-directly connected compressor unit which is equipped with a cooling means for suppressing the heating of the compressor and is easy to transfer without upsizing the compressor unit in size or weight, the compressor unit is configured such that a sirocco fan 30 is arranged between a scroll compressor 20 and a drive motor 60 located under the sirocco fan 30; an output shaft 62 of the drive motor 60, a drive shaft 33 of the sirocco fan 30 and a rotation shaft 28 of the scroll compressor 20 are linearly connected in the same straight line; a housing 32 of the sirocco fan 30 is fixed on a mount 50 which is supported on legs 54 via anti-vibration rubber pads 52; a cooling jacket is arranged to cover a top of a housing 21 of the scroll compressor 20; and an air outlet 31 arranged in the housing 32 of the sirocco fan 30 is in communication with a cooling jacket 40 via a duct 44 so as to feed air a from the sirocco fan 30 to the cooling jacket 40, thereby cooling the scroll compressor.
    Type: Application
    Filed: September 23, 2010
    Publication date: April 7, 2011
    Applicant: C/O ANEST IWATA CORPORATION
    Inventors: Hiroshi INOUE, Toru SATO, Yohei SHIRATORI
  • Publication number: 20100086413
    Abstract: There is provided an electric compressor capable of being actuated rapidly. During the time when the operation of an automotive air conditioner is stopping, by heating a motor 12, a refrigerant on the outlet side 11b of a compressor body 11 is heated. Thereby, the temperature of refrigerant on the outlet side 11b is raised, and the refrigerant is prevented from being liquefied on the outlet side 11b of the compressor body 11, by which the automotive air conditioner can be actuated rapidly. Besides, by rotating the motor 12 at the number of revolutions lower than that at the time of normal operation, the refrigerant liquefied on the outlet side lib of the compressor body 11 may be pushed out.
    Type: Application
    Filed: March 14, 2008
    Publication date: April 8, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tadahiro Matsukawa, Takayuki Takashige, Kenichi Aiba, Koji Toyama
  • Patent number: 7614853
    Abstract: A turbine shaft may be used to remove a heat load from pliant bearings without requiring the use of a process fluid for cooling the turbine shaft. The turbine shaft comprises a heat conductive sleeve disposed between an outer surface of a tie rod shaft and an inner surface of a bearing journal; the heat conductive sleeve having a sleeve inner surface separated from a sleeve outer surface by a sleeve thickness; the heat conductive sleeve having a first end separated from a second end longitudinally about a center axis; the sleeve outer surface being in physical contact with the inner surface of the bearing journal; and the heat conductive sleeve having a thermal conductivity that is greater than a thermal conductivity of the bearing journal.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: November 10, 2009
    Assignee: Honeywell International Inc.
    Inventor: Marshall Saville
  • Patent number: 7600969
    Abstract: A turbocharger comprising a cartridge which is arranged in a turbine casing for variable turbine geometry; a bearing housing which is arranged between the turbine casing and a compressor housing of a compressor impeller and in which a bearing assembly is arranged for a shaft which supports the turbine wheel and the compressor impeller; and a spring washer which is arranged between the cartridge and the bearing housing, the spring washer being composed of at least two material layers.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: October 13, 2009
    Assignee: BorgWarner Inc.
    Inventors: Dirk Frankenstein, Ralf Boening, Hartmut Weiss
  • Patent number: 7267523
    Abstract: A turbine shaft may be used to remove a heat load from pliant bearings without requiring the use of a process fluid for cooling the turbine shaft. The turbine shaft comprises a heat conductive sleeve disposed between an outer surface of a tie rod shaft and an inner surface of a bearing journal; the heat conductive sleeve having a sleeve inner surface separated from a sleeve outer surface by a sleeve thickness; the heat conductive sleeve having a first end separated from a second end longitudinally about a center axis; the sleeve outer surface being in physical contact with the inner surface of the bearing journal; and the heat conductive sleeve having a thermal conductivity that is greater than a thermal conductivity of the bearing journal.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: September 11, 2007
    Assignee: Honeywell International, Inc.
    Inventor: Marshall Saville
  • Patent number: 7193341
    Abstract: A turbomachine for low-temperature applications, has a rotor shaft; at least one rotor disk that is arranged in overhung manner at one shaft end of the rotor shaft; an electric machine having a stator having windings, and an electric rotor arranged on the rotor shaft; a stage housing that surrounds the rotor disk and has connections for a cold gas that flows through the stage housing; and a machine housing in which the electric machine and shaft bearings for the rotor shaft are arranged. The machine housing is connected with the stage housing. A partition made of insulating material is arranged between the stage housing and the machine housing, which thermally separates the stage housing from the machine housing. A line provided with a flow-through regulation fitting is connected to the flow path of the cold gas, for branching off an amount-regulated cooling stream, which is passed to the electric machine within the machine housing.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: March 20, 2007
    Assignee: Atlas Copco Energas GmbH
    Inventor: Werner Bosen
  • Patent number: 7174719
    Abstract: A gas turbine engine includes an interstage seal assembly positioned in a plenum between the compressor section and turbine section. The seal assembly includes an annular seal member positioned in the plenum adjacent to the compressor section for restraining a fluid flow between the compressor section and the turbine section, and an annular heat shield member positioned in the plenum adjacent to the turbine section for limiting heat transfer from the turbine section to the compressor section. The annular heat shield member includes a plurality of slots formed on a surface of the heat shield member in a radial direction of the annular heat shield member.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 13, 2007
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Kyung-heui Kim
  • Patent number: 7083395
    Abstract: Under one aspect of the present invention, a liquefied gas pump assembly is coupleable to a source of liquefied gas. A cooling assembly is positioned generally adjacent to a pump module. The cooling assembly has a converging pump-head-receiving aperture, a fluid inlet line and a fluid outlet line in fluid communication with the source of liquefied gas and in fluid communication with the pump-head-receiving aperture. A pump head assembly is removably retained in the pump-head-receiving aperture so that a portion of the cooling assembly is between the pump head assembly and the pump module. The pump head assembly has a converging shape and being sized to engage the cooling assembly in a wedged configuration when the pump assembly is in an installed position in the cooling assembly. The pump head assembly has a fluid inlet pathway abutting in sealable engagement with the fluid inlet line of the cooling assembly.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: August 1, 2006
    Inventors: Romaine Maiefski, Jon Guy
  • Patent number: 7061155
    Abstract: A rotor device capable of dissipating heat and resisting foreign objects includes a hub and a shield case. The hub has a closed wall and a hub wall connecting with the closed wall and the closed wall at least has a hub hole. The shield case is mounted in the hub and has an upper wall neighboring the closed wall and a circumferential wall connecting with the upper wall. The upper wall at least has a through hole offsetting the hub hole to allow the fluid passing through the hub hole and the through hole for performing heat dissipation and preventing the foreign objects from falling into the shield case via the hub hole and the through hole.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: June 13, 2006
    Assignee: Asia Vital Component Co., Ltd.
    Inventor: Ming-Che Lee
  • Patent number: 7037083
    Abstract: A vacuum conduit connected to a vacuum pump has a shield surface which absorbs radiation to reduce the total radiation falling on the vacuum pump. The vacuum system includes the vacuum conduit connected between a process chamber and the vacuum pump and a surface treatment along at least a portion of the shield surface adapted to absorb radiation. Since the treatment is on the interior surface of the vacuum conduit and does not extend into the center of the conduit, gaseous flow to the pump is not impeded. In this manner radiation entering the vacuum pump and falling on the cryogenic array is reduced without impeding gaseous flow to the cryogenic surface. The system therefore minimizes the radiation load on the cryogenic array in the vacuum pump without impeding the gaseous flow through the vacuum pump.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: May 2, 2006
    Assignee: Brooks Automation, Inc.
    Inventors: James A. O'Neil, Gary S. Ash
  • Patent number: 7021908
    Abstract: A thermal protection shield for a rotating shaft of a primary coolant pump shaft of a nuclear power station includes, in the thermal transition region between the hot fluid and the cold fluid, a ring of nickel alloy shrunk onto the shaft. An external ring of austenitic stainless steel is shrunk at each of its ends onto the ring of nickel alloy. Between the two shrunk-on ends, a cylindrical cavity forms a clearance with the external surface of the nickel alloy ring.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: April 4, 2006
    Assignee: Jeumont S.A.
    Inventor: Louis Mazuy
  • Patent number: 6863508
    Abstract: A pump for gases to be measured having a pump housing in which a pump chamber is located. The pump chamber is sealed off by a working membrane that is connected to a crank drive by a connecting rod or similar lifting mechanism. A heating device is provided in an upper area of the pump housing, particularly in the pump head. Heat insulation covering at least the pump head is provided. The heat insulation is in the form of an insulating housing having an inner wall spaced apart from the pump head in order to form a gas insulation layer.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 8, 2005
    Assignee: KNF Neuberger GmbH
    Inventor: Erwin Hauser
  • Patent number: 6863509
    Abstract: A segmented seal plate supporting a brush seal mounted in the space between the compressor and turbine and bearing against the shaft of a microturbine engine form a barrier in this cavity and serves to control flow in this space. A plurality of circumferentially spaced discretely sized holes in the seal plate judiciously located above the brush seal bearing against the shaft interconnecting the back-to-back mounted compressor/turbine controls the amount of cooling air so that the combination of the brush seal, segmented plate and discretely sized holes controls the leakage from the compressor of each engine of a given model and controls cooling flow to the turbine for reducing efficiency scatter from engine to engine.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: March 8, 2005
    Assignee: Elliott Energy Systems, Inc.
    Inventor: David W. Dewis
  • Patent number: 6827558
    Abstract: A measuring gas pump (1) including a pump housing (2) with a pump chamber (3) inside which is sealed by a working membrane (5). The membrane (5) is connected: by a connecting rod (8) or a similar type of lifting device to a crank mechanism (9). A heating device is provided in the upper area of the pump housing, specifically in the pump head (10). On one hand, in the drive-transmission area between the head of the connecting rod (6) on the membrane side and the crank mechanism (9), there are holes (11) for the reduction of heat transfer to the crank mechanism which are spaced in a longitudinal direction of the connecting rod and which are also diametrically opposed, in peripheral direction, with a resulting reduction in heat conductivity. On the other hand, there is an enlargement of the surface area, at least in the area adjacent to the crank mechanism, for purposes of heat dissipation, specifically through cooling ribs (12).
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: December 7, 2004
    Assignee: KNF Neuberger GmbH
    Inventors: Erwin Hauser, Erich Becker
  • Patent number: 6702000
    Abstract: A blower is provided for effectively cooling heat generating parts in a casing of a personal computer and so on, with a heat sink apparatus using the blower and an electronic equipment using the heat sink apparatus. The blower comprises a fan and an outer frame. The outer frame of the fan is made of a highly thermally conductive material such as aluminum. A radiation board is fixed to or formed integrally with a lower surface of the outer frame. Heat generated from a heat generating device is conveyed through the radiation board to the outer frame. The blower is provided with radiation fins so that the heat conveyed to the outer frame is transferred to the radiation fins as well.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: March 9, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Masaharu Miyahara, Koji Mehara, Kenji Suga, Kazuya Shibasaki, Hiroshi Nakamura, Hironori Ito
  • Publication number: 20040018098
    Abstract: An air compressor having a cooling fan that cools both a pump and an electric motor. Baffle compress air against the top of the motor, causing it to break up and flow around fours sides of the motor and through the motor. The pump includes an elongate intake tube or muffler that attenuates pump intake noise. A compressor tank for the air compressor includes a roll cage for protecting a condensate valve for the compressor tank. The compressor tank includes a rim base formed on the bottom of the compressor tank that permits the compressor tank to rest on a surface without additional supports or legs. Controls and gauges are mounted in the bottom clamshell piece, and openings on a top fit around the controls and gauges. The top and the bottom are aligned with guides so that the controls and gauges may be properly aligned with the openings.
    Type: Application
    Filed: July 29, 2002
    Publication date: January 29, 2004
    Applicant: Coleman Powermate, Inc.
    Inventors: Kurt Beckman, Andrew Kopel, Paul Klimek, Jan Davidson
  • Patent number: 6655930
    Abstract: A centrifugal pump for pumping low temperature fluid includes a motor portion driving an impeller of a pump portion. The motor portion and impeller are coaxial. A pot, sealed to the pump portion, receives the low temperature fluid. The low temperature fluid contacts only the pump portion in the pot, thereby reducing the overall heat capacity of the centrifugal pump to reduce start time. A heat insulating jacket is in tight contact with the motor portion. A vent pipe extends from the pot, through the pump portion and within the heat insulating jacket, to a rear of the motor portion to increase safety and provide double-insulation to the vent pipe. The heat insulating jacket reduces the size and surface area of the centrifugal pump to resist heat flow and increase safety.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 2, 2003
    Assignee: Nikkiso Co., Ltd.
    Inventors: Hitoshi Sato, Motoyasu Ogawa, Masatake Hattori
  • Patent number: 6655932
    Abstract: A device for cooling and lubricating a subsea device (1) which includes an electric rotary machine (4) and a fluid-rotation machine (6-8) drive-connected (5) thereto, which electric rotary machine (4) has a lubrication/cooling circuit includes a cooler (11) exposed towards the surrounding seawater, and where the fluid-rotation machine (6-8) has a fluid pressure at the end facing towards the electric rotary machine (4). The lubrication/cooling circuit (12, 11, 14) is pressure-impacted by the fluid pressure at one point (19, 20) in the lubrication/cooling circuit outside the fluid-rotation machine (6-8).
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 2, 2003
    Assignee: Kvaerner Eureka AS
    Inventors: Kjell Olav Stinessen, Brede Thorkildsen
  • Patent number: 6644942
    Abstract: The invention concerns a pumping unit wherein the vacuum pump (100) is driven by a motor (3, 4) comprised in a common monobloc housing forming motor housing (5) and oil pan (18) containing a gear assembly (17) for coupling two parallel pump rotors (14). To complement the sealing conditions provided by a dynamic seal (6), the motor stator (4) consists of an electric coil embedded in an oil-tight and gas-tight resin, thereby not requiring other more expensive and bulky sealing means, reducing production cost and enhancing the pumping unit dependability.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 11, 2003
    Assignee: Alcatel
    Inventors: Jean-Luc Rival, Albert Cacard, François Houze
  • Patent number: 6634854
    Abstract: A machinery unit with a heat barrier which separates a part that is hot during operation from a cool part of the machinery unit. The machinery unit includes a fastening mechanism for holding the two parts together and at least one or more force-transmitting elements for producing a flux of force between the two parts. The present invention results in a less complicated, compact heat barrier due to the fact that the hot part and the cool part includes flange-like plates which are disposed adjacent one another at a spaced distance apart. The plates are joined together by one or more force-transmitting metal elements and the junction is made through a minimal cross-sectional area sufficient for the transmission force.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: October 21, 2003
    Assignee: KSB Aktiengesellschaft
    Inventors: Ludwig Albrecht, Horst Schreyer
  • Patent number: 6632075
    Abstract: The invention concerns a sealing- and cooling system for a submersible machine, such as a pump or a mixer. The device comprises an easily replaceable (4) containing mechanical face seals with an intermediate room for a barrier liquid where a circulation pump (10) is arranged for circulation of said liquid along the seals as well as around the driving unit (1) of the machine. During circulation, the liquid passes a first narrow gap (6) around the driving unit where heat is absorbed and a second narrow gap (7) where heat is discharged.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: October 14, 2003
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventor: Gert Hallgren
  • Patent number: 6599097
    Abstract: The present invention relates to a dry vacuum pump which includes multiple-tier cylinders, a gas flow path formed in a cover, and a cooling water flow path for thereby concurrently a heat of cooling rotation friction elements and a high temperature gas.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: July 29, 2003
    Assignee: Woosung Vacuum Co., Ltd.
    Inventor: Deok-Kyeom Kim
  • Publication number: 20030103851
    Abstract: A measuring gas pump (1) including a pump housing (2) with a pump chamber (3) inside which is sealed by a working membrane (5). The membrane (5) is connected by a connecting rod (8) or a similar type of lifting device to a crank mechanism (9). A heating device is provided in the upper area of the pump housing, specifically in the pump head (10). On one hand, in the drive-transmission area between the head of the connecting rod (6) on the membrane side and the crank mechanism (9), there are holes (11) for the reduction of heat transfer to the crank mechanism which are spaced in a longitudinal direction of the connecting rod and which are also diametrically opposed, in peripheral direction, with a resulting reduction in heat conductivity. On the other hand, there is an enlargement of the surface area, at least in the area adjacent to the crank mechanism, for purposes of heat dissipation, specifically through cooling ribs (12).
    Type: Application
    Filed: October 18, 2002
    Publication date: June 5, 2003
    Inventors: Erwin Hauser, Erich Becker
  • Publication number: 20030035731
    Abstract: The present invention relates to a dry vacuum pump which includes multiple-tier cylinders, a gas flow path formed in a cover, and a cooling water flow path for thereby concurrently a heat of cooling rotation friction elements and a high temperature gas.
    Type: Application
    Filed: October 3, 2001
    Publication date: February 20, 2003
    Inventor: Deok-Kyeom Kim
  • Publication number: 20020197165
    Abstract: A heat dissipating and power cutting-off device of a pump has a heat dissipating ceramics ring fitted in a plastic member to form watertight connection in between to prevent water from flowing to a motor. The plastic member has a pivotal hole for a main blade wheel connected to a shaft of the motor, and for a shaft seal tightly fitted in same and said ceramics ring. The ring has an annular trench forming between on outer and an inner annular portions for increasing contact area with water so that heat passing through said ring can be dissipated to prevent plastic member from getting melted by said heat. A power cutting-off member is connected to the motor, and has a sensing element abutting the ceramics ring to sense a temperature of same for activation of the cutting-off member when a racing of the motor occurs to cause temperature of both the motor and the ring to rise.
    Type: Application
    Filed: June 26, 2001
    Publication date: December 26, 2002
    Inventor: Wei-Sheng Wang
  • Publication number: 20020114714
    Abstract: A centrifugal pump for pumping low temperature fluid includes a motor portion driving an impeller of a pump portion. The motor portion and impeller are coaxial. A pot, sealed to the pump portion, receives the low temperature fluid. The low temperature fluid contacts only the pump portion in the pot, thereby reducing the overall heat capacity of the centrifugal pump to reduce start time. A heat insulating jacket is in tight contact with the motor portion. A vent pipe extends from the pot, through the pump portion and within the heat insulating jacket, to a rear of the motor portion to increase safety and provide double-insulation to the vent pipe. The heat insulating jacket reduces the size and surface area of the centrifugal pump to resist heat flow and increase safety.
    Type: Application
    Filed: December 19, 2001
    Publication date: August 22, 2002
    Inventors: Hitoshi Sato, Motoyasu Ogawa, Masatake Hattori
  • Patent number: 6419461
    Abstract: A turbo molecular pump comprises an electric component section having a motor, a base section supporting the electric component section, a shaft rotationally driven by the motor, and an impeller connected to the shaft for rotation therewith. A casing houses the electric component section, and a heat insulating material is disposed between the casing and the base section.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 16, 2002
    Assignee: Seiko Instruments Inc.
    Inventor: Takashi Okada
  • Patent number: 6409480
    Abstract: A drive unit for hydraulic consumers for individual structural component parts of a machine for producing shaped articles from molding materials, including a motor, a pump driven by the motor, and a carrying part configured to connect at least one of the pump and the motor to the machine. The carrying part has a pipe-shaped area which is closed at both ends by at least one of a bottom and a cover. At least the pump projects into the carrying part and is enclosed by the carrying part. The pump is attached to the carrying part on a side facing away from the motor. A portion of the carrying part is constructed as a connection block.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: June 25, 2002
    Assignee: Mannesmann AG
    Inventors: Kurt Dieno, Andreas Kübel, Hans-Jürgen Popp, Ernst Würl