With Motor Bearing Lubrication Or Cooling Patents (Class 60/605.3)
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Publication number: 20130047608Abstract: “A lubrication system for turbocharger(s) ensures continuous lubrication of bearings and shaft of the turbocharger with lubricant retention during start and shut down of turbocharger-associated systems thereby enhancing the performance and turbocharger life. A shaft and bearings are lubricated by introducing pressurized lubricating oil through an oil inlet passage in the bearing housing and after lubricating, the lubricant returns to the engine oil sump located below the turbocharger through the oil outlet passage. A valve in the oil inlet pipe line permits lubricant flow to the bearings during engine running, and when the engine stops and oil pressure falls below the valve opening pressure, the valve shuts and traps the lubricant in oil inlet pipe that is above the valve. The oil outlet pipe retains sufficient lubricant in the bearing housing which lubricates the shaft and bearings post engine shutdown.Type: ApplicationFiled: July 18, 2012Publication date: February 28, 2013Inventors: Kishor Raut SHASHANK, Sharad Shete MANOJ
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Publication number: 20130036734Abstract: A thermosiphon system in an engine is provided herein. The thermosiphon system includes a coolant channel traversing a bearing housing, the bearing housing included in a bearing coupled to a shaft mechanically coupled to a turbine and a compressor in a turbocharger, a ventilation vessel in fluidic communication with at least one coolant passage traversing at least one of a cylinder head and a cylinder block in the engine, the at least one coolant passage included in a cooling circuit, and a thermosiphon coolant line having an inlet in fluidic communication with an outlet of the coolant channel and an inlet of the ventilation vessel, the inlet positioned vertically below an interface between liquid and vapor coolant in the ventilation vessel.Type: ApplicationFiled: August 10, 2012Publication date: February 14, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Bernd Brinkmann, Jan Mehring
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Patent number: 8353158Abstract: A turbocharger bearing housing defines a bore in which the turbocharger shaft is mounted for rotation in journal bearings. Lubricating oil is delivered to the journal bearings and a residue is retained in reservoirs in which the journal bearings are located. Two fluid retaining members are disposed around the shaft, each forming a wall of the reservoir and being sealed to the bearing housing. The lubricating fluid reservoir is provided between the fluid retaining members to a depth that at least partially immerses the journal bearings even when the oil supply is interrupted. This ensures that there is sufficient oil to lubricate the bearings at engine start-up, thereby reducing the risk of wear.Type: GrantFiled: February 1, 2010Date of Patent: January 15, 2013Assignee: Cummins Turbo Technologies LimitedInventors: Matthew J Purdey, Mohammed Hanif Khan
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Publication number: 20120304642Abstract: In an internal combustion engine having at least one exhaust gas turbocharger and an engine crankcase with at least one ventilation unit, by means of which a mixture of gas and lubricant generated in the crankcase of the internal combustion engine can be removed from the engine crankcase, and which cooperates with at least one first separating unit, by means of which lubricant can be separated from the gas and lubricant mixture formed in the crankcase, at least one further separating unit is associated with the at least one exhaust gas turbocharger, by means of which lubricant of a mixture of the lubricant and gas formed in the exhaust gas turbocharger can be separated from the lubricant and gas mixture.Type: ApplicationFiled: August 19, 2012Publication date: December 6, 2012Inventors: Kay Arnold, Peter Kalisch
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Patent number: 8245511Abstract: A turbocharger system for an internal combustion engine includes a turbocharger with a utility pedestal extending between the turbocharger and hard point associated with the cylinder block. The utility pedestal includes a mounting pad for attaching the combined turbocharger and pedestal assembly to an engine, as well as internal oil and coolant supply passages for supplying the turbocharger with coolant and lubricating oil under pressure.Type: GrantFiled: June 25, 2008Date of Patent: August 21, 2012Assignee: Ford Global Technologies, LLCInventors: Christopher Cowland, Patrick Sexton, Christopher Kelly Palazzolo, Anthony William Hudson
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Patent number: 8234867Abstract: A turbocharger system for an internal combustion engine includes a turbocharger with a utility pedestal extending between the turbocharger and the hard point associated with the cylinder block. The utility pedestal includes a mounting pad for attaching the combined turbocharger and pedestal assembly to an engine, as well as oil and coolant supply passages for supplying the turbocharger with coolant and lubricating oil under pressure. An internal, isolated, turbocharger oil drainback passage conducts waste oil from the turbocharger to a crankcase sump without permitting the waste oil to contact the engine's moving parts.Type: GrantFiled: June 25, 2008Date of Patent: August 7, 2012Assignee: Ford Global Technologies, LLCInventors: Christopher Kelly Palazzolo, Patrick Sexton, Christopher Cowland
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Publication number: 20120174579Abstract: A supercharged liquid-cooled internal combustion engine is provided. In one example, a bearing of a turbocharger is cooled in response to a thermal load of the turbocharger. In this way, coolant flow rate to the bearing may be provided based on cooling demand.Type: ApplicationFiled: December 20, 2011Publication date: July 12, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Bernd Brinkmann
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Patent number: 8215113Abstract: A turbocharger system for an internal combustion engine includes a turbocharger with a utility pedestal extending between the turbocharger and a mounting surface associated with the engine. The utility pedestal includes a mounting pad for attaching the combined turbocharger and pedestal assembly to the engine, as well as internal oil and coolant supply passages for supplying the turbocharger with coolant and lubricating oil under pressure.Type: GrantFiled: June 25, 2008Date of Patent: July 10, 2012Assignee: Ford Global Technologies, LLCInventors: Anthony William Hudson, Patrick Sexton, Christopher Kelly Palazzolo, Christopher Cowland
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Patent number: 8209983Abstract: A turbocharger system for an internal combustion engine includes a turbocharger with a utility pedestal extending between the turbocharger and a mounting point associated with the cylinder block. The utility pedestal includes a mounting pad for attaching the combined turbocharger and pedestal assembly to an engine, as well as oil and coolant supply passages for supplying the turbocharger with coolant and lubricating oil under pressure. The utility pedestal's fastening system is configured so as to cover a minimum amount of space of the engine surface to which the pedestal is mounted, so as to reduce the footprint of the turbocharger system.Type: GrantFiled: June 25, 2008Date of Patent: July 3, 2012Assignee: Ford Global Technologies, LLCInventors: Christopher Kelly Palazzolo, Patrick Sexton
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Publication number: 20120116625Abstract: A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.Type: ApplicationFiled: December 13, 2011Publication date: May 10, 2012Inventors: Thomas Pels, Paul Kapus, Peter Ebner, Robert Fischer, Günter Fraidl, Wolfgang Kriegler, Carsten Kaup
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Publication number: 20120055424Abstract: The disclosure relates to a cylinder head having at least one cylinder. The cylinder head comprises a radial turbine including a rotor arranged in a turbine casing and rotatably mounted on a shaft, an overall exhaust line which opens into an inlet zone of the radial turbine, said zone merging into a flow duct which carries exhaust gas, and at least one coolant duct integrated into the turbine casing to form a cooling system, the at least one coolant duct extending in a spiral around the shaft in the casing, wherein the at least one coolant duct extends circumferentially around and at a distance from the flow duct over an angle ?, where ??45°.Type: ApplicationFiled: September 6, 2011Publication date: March 8, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Kai Sebastian Kuhlbach
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Publication number: 20110318164Abstract: The means of sealing the compressor wheel with respect to the bearing housing includes an annular sealing element which forms a sealing boundary face with a shaft edge and to which a spring force is applied in the direction of the shaft edge. The external spring force neither compensates or amplifies the pressure forces acting on the sealing element, irrespective of the direction of the difference in pressure. As a result, the sealing of the oil space in the bearing housing of the exhaust gas turbocharger with respect to the shaft is not influenced, or is influenced only to a small degree, by the pressure fluctuations in the wheel back space of the compressor.Type: ApplicationFiled: June 23, 2011Publication date: December 29, 2011Applicant: ABB Turbo Systems AGInventors: Adrian Kopp, Christoph Häge, Martin Thiele
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Publication number: 20110302920Abstract: A supercharged internal combustion engine includes a motor unit having a head and an exhaust manifold. A turbocharger assembly is fluid dynamically connected to the exhaust manifold, wherein the turbocharger assembly includes a turbine, a central body and a compressor. The turbocharger assembly includes a lubrication channel for the passage of a lubricating fluid hydraulically connected to a lubrication circuit of the motor unit of said internal combustion engine. The turbine includes a jacket, provided at least in part in a body thereof, arranged for the passage of a cooling fluid and in hydraulic communication with an inlet channel and an outlet channel hydraulically connected to a cooling circuit of the motor unit of said internal combustion engine. The inlet channel, outlet channel and lubrication channel are integrated in said turbocharger assembly in correspondence of a connection interface between said turbocharger assembly and the motor unit.Type: ApplicationFiled: June 6, 2011Publication date: December 15, 2011Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONIInventors: Marco CUNIBERTI, Roberto SARETTO, Damiano MICELLI
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Publication number: 20110296834Abstract: An internal combustion engine is provided herein. The internal combustion engine may include a turbocharger including a turbine positioned in an exhaust passage, the turbine having a turbine housing. The internal combustion engine may further include a cooling system having an engine block coolant jacket fluidly coupled to a pump, a cylinder head coolant jacket fluidly coupled to the pump, and a turbine coolant passage traversing the turbine housing and fluidly coupled to the pump and bypassing the engine block coolant jacket.Type: ApplicationFiled: June 2, 2011Publication date: December 8, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Kai Sebastian Kuhlbach, Bernd Steiner, Jan Mehring
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Patent number: 8051660Abstract: The present invention relates to a charging device (1), in particular an exhaust-gas turbo charger for a motor vehicle, comprising a shaft (3) which is supported in a housing (2), and which carries a turbine wheel (6) on the turbine side, and a compressor wheel (8) on the compressor side, wherein the shaft (3) is supported by means of at least one bearing device (9) in the housing (2), wherein a lubricant supply channel (10) is provided through which the bearing device (9) is supplied with lubricant, wherein in the lubricant supply channel (10), a filter device (11) with at least one filter element (12) is arranged.Type: GrantFiled: December 18, 2008Date of Patent: November 8, 2011Assignee: Mahle International GmbHInventor: Rafael Weisz
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Publication number: 20110239648Abstract: A hybrid exhaust turbine turbocharger that allows for a reduction in manufacturing costs and maintenance costs is provided. In a hybrid exhaust turbine turbocharger in which a silencer connected to an intake system of an internal combustion engine and supported by a casing via a compressor unit is provided upstream of the compressor unit, and in which a shell housing having a recess, accommodating a generator, therein is provided in a midsection of the silencer, an oil reservoir that holds a lubricant having lubricated a bearing disposed within the generator and dripped from the generator is formed at a bottom section of the shell housing, and the lubricant accumulated in the oil reservoir is returned by gravity to an oil tank disposed downstream via a lubricant discharge tube that communicates with the oil reservoir.Type: ApplicationFiled: April 24, 2009Publication date: October 6, 2011Inventor: Keiichi Shiraishi
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Patent number: 8028524Abstract: A supercharger for an internal combustion engine having an internal reservoir adapted to receive a supply of lubricating oil. An oil slinger is mounted on the impeller shaft for rotation therewith that extends into the reservoir for collecting and slinging lubricating oil onto the supercharger bearings, shafts and the drive and impeller gears. A baffle assembly is carried by the interior of the supercharger housing for controlling the volume and flow of lubricating oil onto said gears and bearings and directing oil flow therefrom back into said reservoir to prevent excessive lubrication buildup on the gears and the deleterious effects that result therefrom.Type: GrantFiled: July 3, 2008Date of Patent: October 4, 2011Assignee: Vortech Engineering, Inc.Inventors: James K. Middlebrook, Michael W. Reagan, Matthew L. Shemenski
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Patent number: 8015810Abstract: A lubrication control system includes an accumulator to store oil. The accumulator can be filled with oil during operation of an engine. A control valve can be selectively operated to allow oil stored in the accumulator to flow to a turbocharger. At least one control module can control operation of a hybrid electric vehicle and determine an operating condition of the engine and command the control valve to open and close based on the operating condition.Type: GrantFiled: May 14, 2007Date of Patent: September 13, 2011Inventor: Mark A. Theobald
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Patent number: 8001781Abstract: A motor-driven supercharger is provided with a thrust bearing (30) rotatably supporting a thrust force applied to a turbine shaft (12). The thrust bearing (30) is constituted by a small-diameter disc-shaped thrust collar (32) rotating together with a turbine shaft, and a turbine side thrust bearing (34) and a compressor side thrust bearing (36) which block a movement in an axial direction of the thrust collar. The compressor side thrust bearing (36) has a small-diameter ring portion (37) including a thrust surface which is in contact with the thrust collar and has approximately an equal diameter, and a flange portion (38a) fixed to a housing (16) in the turbine side, and the small-diameter ring portion and the flange portion are arranged at different positions in an axial direction.Type: GrantFiled: April 25, 2007Date of Patent: August 23, 2011Assignee: IHI CorporationInventors: Yasuyuki Shibui, Masahiro Shimizu
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Publication number: 20110120125Abstract: An exemplary semi-floating bearing for a turbocharger has a central axis defining a cylindrical coordinate system with an axial direction, a radial direction and an angular direction; a turbine end; a compressor end; journal surfaces between the turbine end and the compressor end, the surfaces configured to support a turbocharger shaft; and an opening disposed between the turbine end and the compressor end, the opening having a radial dimension that exceeds an axial dimension to, upon receipt of a locating pin, provide for movement of the bearing in the angular direction about its central axis and to provide for lesser movement of the bearing in the axial direction. Other exemplary bearings, arrangements and methods are also disclosed.Type: ApplicationFiled: November 24, 2009Publication date: May 26, 2011Inventors: Joel Castan, Jose Alves, Gerard Dieudonne, Dominique Armand, Didier Horlaville
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Patent number: 7946118Abstract: An electrically controlled turbocharger has a motor mounted on a shaft in a motor housing between a turbine and compressor. Oil is sprayed onto the motor stator to cool the stator. An oil gallery is disposed above the stator to receive lubricating oil and contains apertures that perform as jets to allow oil to be sprayed directly on the motor stator. A coolant jacket is formed in the turbocharger housing between the turbine and the motor to allow liquid coolant to circulate therein and dissipate heat from the turbine end prior to reaching the motor components. Other embodiments provide for a stator component to be submerged in flowing cooling oil.Type: GrantFiled: July 21, 2010Date of Patent: May 24, 2011Assignee: EcoMotors InternationalInventors: Will Hippen, Franz Laimboeck, Tyler Garrard
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Publication number: 20110094225Abstract: An internal combustion engine includes a crankcase which accommodates cylinders, having at least one exhaust turbocharger and having an oil circuit containing at least one oil pump, in which engine oil is siphoned by at least one oil pump and delivered to the cylinders for lubrication, and in which the or each exhaust turbocharger is coupled to the oil circuit such that siphoned engine oil can be distributed to bearings of the respective turbocharger via an inlet line leading to the respective exhaust turbocharger and can then be expelled from the bearings of the respective exhaust turbocharger in the direction of an oil sump via an outlet line leading away from the respective exhaust turbocharger. The respective outlet line of the respective exhaust turbocharger is assigned a pressure limiting device, with the aid of which a vacuum prevailing at the bearings of the respective exhaust turbocharger can be limited.Type: ApplicationFiled: October 12, 2010Publication date: April 28, 2011Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Bruno Kistner, Bernhard Freiermuth, Christoph Müller
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Patent number: 7836694Abstract: A cooling air flow regulating device for controlling the flow of cooling air to an air bearing may comprise a housing with a piston and a spring disposed within. When the pressure of the cooling air is high, the piston is forced out of the path of the cooling air and into an open position. As the pressure of the cooling air decreases, the spring forces the piston back into the path of the cooling air, effectively blocking the flow of cooling air to the air bearing. The cooling air flow regulating device of the present invention may be useful for controlling the cooling of air bearings in turbochargers of turbocharged engine, where at low engine speed, cooling air is not required for air bearings. Methods for using the cooling air flow regulating device of the present invention are also provided.Type: GrantFiled: July 13, 2007Date of Patent: November 23, 2010Assignee: Honeywell International Inc.Inventor: Steven Don Arnold
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Patent number: 7837448Abstract: An oil seal structure of a supercharger (10) has an oil shield member (21), a seal housing (25), and an annular seal member (23) arranged between the oil shield member (21) and the seal housing (25). The oil shield member (21) has a portion in which an approximately circular outer edge is formed in a vertical cross section to an axial direction, in a leading end portion in a compressor side, and the oil shield member (21) has an outer edge reduced-diameter portion (21a) which is formed in the leading end in the compressor side and in which a radius of the outer edge is smaller than the other portions of the outer edge. The seal member (23) is fitted to the outer edge reduced-diameter portion (21a). An opening through which the oil shield member (21) passes is formed in the seal housing (25), and the seal housing (25) is brought into contact with the seal member (23) in an inner edge in a radial direction forming the opening.Type: GrantFiled: December 28, 2006Date of Patent: November 23, 2010Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.Inventors: Masahiro Shimizu, Yukio Takahashi
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Patent number: 7832993Abstract: An internal combustion engine includes a cylinder crankcase, a mechanically driven compressor for compressing charge air, and a compressor mounting for the compressor. The compressor mounting is provided at the cylinder crankcase and a pressure damper is integrated into the compressor mounting.Type: GrantFiled: February 26, 2007Date of Patent: November 16, 2010Assignee: Volkswagen AktiengesellschaftInventor: Jakob Erfurt
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Patent number: 7802429Abstract: An exhaust turbo-supercharger having a high efficiency is provided. The exhaust turbo-supercharger includes therein an exhaust turbine housing including a spiral channel and a turbine-accommodating chamber connected to an innermost peripheral part of the spiral channel; an exhaust turbine provided in the turbine-accommodating chamber so that the axial line of the exhaust turbine is parallel to that of the spiral channel; a shaft that is concentrically connected to one side of the exhaust turbine in the axial line direction; a bearing housing disposed at the side of the exhaust turbine in the axial line direction so as to be adjacent to the exhaust turbine housing; a bearing that is provided in the bearing housing and that rotatably supports the shaft around the axial line; and a heat shield component interposed between the exhaust turbine housing and the bearing housing.Type: GrantFiled: October 17, 2006Date of Patent: September 28, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takao Yokoyama, Seiichi Ibaraki, Katsuyuki Osako, Motoki Ebisu
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Patent number: 7802428Abstract: A subassembly of a system including an exhaust gas turbocharger system coupled with an internal combustion engine exhaust system, includes first and second components secured to each other, wherein the components are heated to an operational temperature by engine exhaust gases during engine operation. The components are secured to each other by or with a “low-melt material” whose melting temperature is less than the operational temperature, such that the low-melt material melts or at least loses its securing and/or positioning functionality upon operation of the engine and turbocharger system, and thus no longer performs any fastening or positioning function for the components. In some embodiments, temporary fasteners made of or including the low-melt material are employed for temporarily securing and positioning the components.Type: GrantFiled: October 4, 2007Date of Patent: September 28, 2010Assignee: Honeywell International, Inc.Inventors: Jean-Luc Perrin, Arthur Jeanson, Marylene Ruffinoni
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Patent number: 7793499Abstract: An exemplary center housing rotating assembly includes a turbine wheel, a compressor wheel, a center housing with a through bore extending from a compressor end to a turbine end, a lubricant inlet and a lubricant outlet, a pair of bearings disposed at least partially in the through bore of the center housing, a bearing spacer and a shaft rotatably supported by the bearings and having a rotational axis coincident with a rotational axis of the turbine wheel and a rotational axis of the compressor wheel where the center housing includes bearing lubricant paths to direct lubricant from the lubricant inlet to the pair of bearings and a shaft lubricant path to direct lubricant from the lubricant inlet to the shaft in a manner dependent on rotational position of the bearing spacer in the through bore of the center housing. Various other exemplary devices, systems, methods, etc., are also disclosed.Type: GrantFiled: October 25, 2006Date of Patent: September 14, 2010Assignee: Honeywell International Inc.Inventor: Daniel A Gutknecht
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Publication number: 20100192571Abstract: A turbocharger has a turbocharger housing and a through opening for a shaft. The shaft is pivotally supported in the housing by way of a bearing arrangement. Lubricating oil is supplied for lubricating the bearings. A section of the shaft is provided on the outside of at least one bearing, the section forming a gap together with the housing. The gap is configured as a lubricating oil regulator in order to at least reduce a passage of lubricating oil from the sides of the bearing.Type: ApplicationFiled: June 11, 2008Publication date: August 5, 2010Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Ralf Böning, Hartmut Claus, Dirk Frankenstein, Holger Fäth, Jochen Held, Stefan Krauss, Stefan Nowack
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Publication number: 20100139270Abstract: A turbocharger oil discharge assembly (301, 501, 701, 901) can have a thrust collar (324, 524, 724, 924) with a first radially outwardly extending wall and a second radially outwardly extending wall to define a first annular channel. The first radially outwardly extending wall can have an annular flange that at least in part defines a second annular channel. The assembly can also have a thrust bearing (340, 540, 740, 940) having a radially inner end received in the first annular channel, and an insert (400, 600, 800, 1000). An oil collection chamber (440, 640, 840, 1040) can be defined at least in part by a drainage channel of the insert (400, 600, 800, 1000), the annular flange of the thrust collar (324, 524, 724, 924) and the thrust bearing (340, 540, 740, 940).Type: ApplicationFiled: September 27, 2007Publication date: June 10, 2010Applicant: BORGWARNER INC.Inventors: Silvio Koch, Edward R. Panek, Lauro Takabatake
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Publication number: 20100132358Abstract: A turbocharger bearing housing defines a bore in which the turbocharger shaft is mounted for rotation in journal bearings. Lubricating oil is delivered to the journal bearings and a residue is retained in reservoirs in which the journal bearings are located. Two fluid retaining members are disposed around the shaft, each forming a wall of the reservoir and being sealed to the bearing housing. The lubricating fluid reservoir is provided between the fluid retaining members to a depth that at least partially immerses the journal bearings even when the oil supply is interrupted. This ensures that there is sufficient oil to lubricate the bearings at engine start-up, thereby reducing the risk of wear.Type: ApplicationFiled: February 1, 2010Publication date: June 3, 2010Inventors: Matthew J. Purdey, Mohammed Hanif Khan
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Publication number: 20100089057Abstract: An axial bearing for a turbocharger contains a through hole for a shaft and at least one at least partially or completely circulating segment section on a first and second side of the axial bearing. At least one bearing surface is disposed in the segment section. At least one oil pocket is on the first side of the axial bearing. The oil pocket is connected to at least one recess opening outwards, the recess being configured such that it connects the oil pocket for oil supply purposes to the respective segment section and the bearing surface(s) thereof on the first and second side of the axial bearing.Type: ApplicationFiled: April 22, 2008Publication date: April 15, 2010Applicant: CONTINENTAL AUTOMOTIVE GMBHInventors: Ralf Böning, Hartmut Claus, Dirk Frankenstein, Holger Fäth, Jochen Held, Stefan Krauss, Stefan Nowack
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Publication number: 20100043431Abstract: A turbocharger is provided having a bearing housing (100) and a heat shield (200) staked thereto. The staking process can be a compression staking process that deforms one or more portions of the bearing housing (100). The bearing housing (100) can have an annular channel (150) and the compression staking can be done to an outer edge (160) of the annular channel (150) to form one or more compression projections (400). The size and shape of the annular channel (150) can be substantially the same as the size and shape of an outer portion of the heat shield (200) to allow for a press-fit therebetween.Type: ApplicationFiled: October 30, 2007Publication date: February 25, 2010Applicant: BORGWARNER INC.Inventors: Michael Thayer, Marc Ogle
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Patent number: 7631497Abstract: A turbocharger (10) with a heat shield (60) positioned between the turbine wheel (30) and the bearing housing (20), wherein the heat shield defines a gap (70) between the turbine wheel (30). The heat shield (60) and is provided with at least one rib (80) extending into the gap. In this gap, in the case of a conventional flat heat shield, the turbine wheel backface may act in the manner of a centrifugal pumping, pumping gas out from within the gap, creating a region of reduced pressure adjacent the outboard side of the turbine shaft bearing, drawing oil out the shaft bearing and into the space between the turbine wheel backface and the heat shield. The inventive heat shield has raised structures designed to interfere with the rotational and centrifugal flow of gas in the gap between heat shield and turbine wheel backface, thus prevent oil bypass.Type: GrantFiled: April 21, 2005Date of Patent: December 15, 2009Assignee: BorgWarner Inc.Inventor: Edward Panek
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Patent number: 7530230Abstract: In a supercharger (10) with an electric motor in accordance with the invention, an inner side of the center housing (10) is provided with an air introduction path (38) introducing a part of a compressed air within the compressor housing (8) to the electric motor (20), and a cooling structure portion (40) cooling the air flowing through the air introduction path (38). The center housing (14) has a cooling fluid flow path (34) which is formed so as to surround the electric motor (20) and puts a cooling fluid for cooling the electric motor (20) in circulation inside. The cooling structure portion (40) is structured such as to be capable of heat exchanging between the cooling fluid and the air flowing through the air introduction path (38).Type: GrantFiled: August 7, 2006Date of Patent: May 12, 2009Assignee: IHI CorporationInventors: Yasuyuki Shibui, Yukio Takahashi
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Patent number: 7530228Abstract: An exemplary center housing for a turbocharger includes a lubricant control valve that includes a stem seated at least partially in the center housing where the stem has one or more orifices for controlling lubricant flow. The exemplary center housing also includes a lubricant filter positioned adjacent the stem of the lubricant control valve. The lubricant filter is optionally replaceable, for example, being accessible by removal of the stem from the center housing. Various other exemplary devices, assemblies, systems, methods, etc., are also disclosed.Type: GrantFiled: April 24, 2006Date of Patent: May 12, 2009Assignee: Honeywell International Inc.Inventors: Steve P. Martin, Christopher O Meade
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Publication number: 20090056332Abstract: In a high-speed rotating shaft (10) of a supercharger which is rotatably supported by two radial bearings (12a, 12b) spaced at a fixed distance (L), directly couples a turbine impeller fixed to one end and a compressor impeller fixed to the other end, and transmits a rotational driving force of the turbine impeller to the compressor impeller, a small shaft portion (14) having a smaller diameter than a bearing portion is provided between bearings. The small shaft portion (14) is offset to a compressor side.Type: ApplicationFiled: January 31, 2007Publication date: March 5, 2009Applicant: IHI CORPORATIONInventor: Masahiro Shimizu
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Patent number: 7476090Abstract: A turbocharger (300) for an internal combustion engine (500) includes a center housing (304) connected to a turbine housing (302) and a compressor housing (306). A shaft (318) is in a bore (314) of the center housing (304). An oil supply passage (328) is in fluid communication with the bore (314). An oil drain passage (310) is in fluid communication with a oil cavity (334) and the bore (314). A vent passage (330) is in fluid communication with the oil cavity (334) and an internal volume (520) of the internal combustion engine (500). Oil flow passes through the first passage (328) and the drain passage (310) during operation of the internal combustion engine (500). A first pressure of air (P1) in the oil cavity (334) is about equal to a second pressure of air (P2) in the internal volume (520) of the internal combustion engine (500).Type: GrantFiled: October 11, 2005Date of Patent: January 13, 2009Assignee: International Engine Intellectual Property Company, LLCInventor: Terry G. Wood
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Publication number: 20090000297Abstract: The present invention is an exhaust gas recirculation system for a motor vehicle, having a turbocharger unit (18) which has a turbine (20) and a compressor (36), the compressor (36) having a compressor wheel (42) which rotates on an axis (66). There is also a dispersion apparatus (56) operably associated with a condensation separation apparatus (58). The condensation separation apparatus (58) separates moisture from exhaust gas flowing from the turbine (20), and the dispersion apparatus (56) reintroduces the moisture into the compressor (36) in proximity to the compressor wheel axis (66), preventing erosion of the compressor wheel (42).Type: ApplicationFiled: January 26, 2007Publication date: January 1, 2009Applicant: BorgWarner Inc.Inventors: Volker Joergl, Timm Kiener, Olaf Weber
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Patent number: 7469539Abstract: A turbocharger system for a combustion engine and method of installing a turbocharger system includes a turbocharger having an oil inlet and an oil outlet configured for being coupled to an oiling system. An oil pump is connected to the oil outlet of the turbocharger and is further connected to the oiling system. The turbocharger system also includes mounting hardware for mounting the turbocharger to an exhaust pipe away from the engine at or below the oil level of the oiling system. In one embodiment, the method of installing the turbocharger system includes removing an existing muffler from the vehicle and mounting the turbocharger at or near the location of the existing muffler.Type: GrantFiled: October 30, 2006Date of Patent: December 30, 2008Assignee: Squires Turbo System, Inc.Inventor: Richard K. Squires
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Patent number: 7458369Abstract: A supercharger can have a lubrication system that includes a speed increasing mechanism, accommodated in a second housing, for increasing the rotation speed of a drive shaft and transmitting the increased rotation speed to a rotary shaft. An oil sump can be configured to for hold lubricant oil for lubricating the speed increasing mechanism. A pump mechanism can be driven by the rotation of the drive shaft to supply the lubricant oil held in the oil sump to the speed increasing mechanism, in which the pump mechanism is constituted with a screw pump made up of a screw provided on the drive shaft. A pump chamber can rotatably support the drive shaft and accommodate the screw. An oil introduction hole and an oil introduction tube can connect the oil sump and the interior of the pump chamber, and a gap can be formed between the screw and the pump chamber.Type: GrantFiled: September 14, 2005Date of Patent: December 2, 2008Assignee: Yamaha Marine Kabushiki KaishaInventor: Shigeyuki Ozawa
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Patent number: 7367190Abstract: In a supercharger (10) with an electric motor in accordance with the present invention, the electric motor (20) is arranged at a position adjacent to a compressor impeller (6), a center housing (14) has a cooling fluid flow path (34) formed in such a manner as to surround the electric motor (20) and be adjacent to a diffuser portion (25). A first cooling structure portion (38) is formed at a position in the electric motor (20) side in the cooling fluid flow path (34), a second cooling structure portion (39) is formed at a position in the diffuser portion (25) side in the cooling fluid flow path (34). The electric motor (20) is cooled by the first cooling structure portion (38). The diffuser portion (25) is cooled by the second cooling structure portion (39).Type: GrantFiled: August 10, 2006Date of Patent: May 6, 2008Assignee: IHI Corp.Inventors: Yasuyuki Shibui, Masahiro Shimizu
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Publication number: 20080098735Abstract: An exemplary center housing rotating assembly includes a turbine wheel, a compressor wheel, a center housing with a through bore extending from a compressor end to a turbine end, a lubricant inlet and a lubricant outlet, a pair of bearings disposed at least partially in the through bore of the center housing, a bearing spacer and a shaft rotatably supported by the bearings and having a rotational axis coincident with a rotational axis of the turbine wheel and a rotational axis of the compressor wheel where the center housing includes bearing lubricant paths to direct lubricant from the lubricant inlet to the pair of bearings and a shaft lubricant path to direct lubricant from the lubricant inlet to the shaft in a manner dependent on rotational position of the bearing spacer in the through bore of the center housing. Various other exemplary devices, systems, methods, etc., are also disclosed.Type: ApplicationFiled: October 25, 2006Publication date: May 1, 2008Inventor: Daniel A. Gutknecht
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Patent number: 7360361Abstract: An electrically controlled turbocharger having a substantially vertically oriented shaft interconnecting a turbine and a compressor. The vertical orientation serves to eliminate the effects of gravity on the rotating components. Placing the turbine vertically above the motor and compressor and provides additional cooling through convection of heat produced by hot exhaust gas flowing through the turbine. A lubricating system utilizes scavenged air from the compressor to draw lubricating oil through internal passages of the motor housing to maintain a desirable oil sump level, ventilate the auxiliary induction motor, and provide pressure to the oil seals of the motor cavity.Type: GrantFiled: April 7, 2006Date of Patent: April 22, 2008Assignee: Advanced Propulsion Technologies, Inc.Inventors: Thomas M. Prusinski, Peter Hofbauer, Jason Schmidt
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Publication number: 20080087018Abstract: Bearing systems for high speed rotating shafts, such as turbocharger shafts, include a first ball bearing in one end of an elongated cylinder capable of carrying axial thrust in both directions and a second ball bearing in the opposite end of the elongated cylinder with its outer race slideably mounted in the cylinder against the biasing force of a preload spring. The second ball bearing is free to move axial with the shaft upon axially expansion of the shaft when exposed to high temperature. The inner races of the ball bearings are clamped to and rotate with the shaft as part of the rotating assembly.Type: ApplicationFiled: October 11, 2006Publication date: April 17, 2008Inventor: William E. Woollenweber
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Patent number: 7290391Abstract: A charge air cooler is composed of a framed heat exchange core which is sealably attached in a selectively removable manner with any suitably shaped inlet and outlet ducts, and is, at the other sides thereof provided with cover panels which collectively necessitate that all of the hot charge air coming from the turbocharger pass entirely through the heat exchange core. In this regard, the heat exchange core is provided with a pair of opposingly disposed mounting frames, each of which being connected sealably to a commensurately sized and configured mounting flange of an inlet duct or an outlet duct.Type: GrantFiled: January 20, 2005Date of Patent: November 6, 2007Assignee: Electro-Motive Diesel, Inc.Inventor: Verne E. Rezabek
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Patent number: 7204671Abstract: A fluid flow engine comprises a shaft supported in a bearing housing by means of a bearing shell. There are at least two lubricating bores in the bearing shell each having a predetermined geometry as to diameter, length and angular arrangement with respect to the bearing shell. At least one turbine rotor is on one end of the shaft. A turbine housing provides a turbine space for accommodating the turbine rotor, the turbine housing being connected to the bearing housing. There are sound suppressing means arranged within the bearing housing.Type: GrantFiled: December 29, 2004Date of Patent: April 17, 2007Assignee: BorgWarner Inc.Inventor: Udo Dellmann
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Patent number: 7165402Abstract: A combustion engine for a vehicle comprising at least one exhaust gas collector for receiving the gases combusted in the engine, an exhaust gas driven turbo compressor for connection downstream the exhaust gas collector, and a mounting device for mounting the turbo compressor on the engine. The invention is characterised in that the mounting device comprises a suspension device arranged on the engine body for suspending the turbo compressor such that the weight of the turbo compressor is supported and that the turbo compressor after the suspension is connectable to the exhaust gas collector.Type: GrantFiled: April 29, 2005Date of Patent: January 23, 2007Assignee: Saab Automobile ABInventor: Christer Blom
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Patent number: 7134282Abstract: A turbocharger system for a combustion engine and method of installing a turbocharger system includes a turbocharger having an oil inlet and an oil outlet configured for being coupled to an oiling system. An oil pump is connected to the oil outlet of the turbocharger and is further connected to the oiling system. The turbocharger system also includes mounting hardware for mounting the turbocharger to an exhaust pipe away from the engine at or below the oil level of the oiling system. In one embodiment, the method of installing the turbocharger system includes removing an existing muffler from the vehicle and mounting the turbocharger at or near the location of the existing muffler.Type: GrantFiled: March 8, 2004Date of Patent: November 14, 2006Assignee: Squires Turbo Systems, Inc.Inventor: Richard K. Squires
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Patent number: 7043915Abstract: A turbocharger mounting system pivotally mounts a turbocharger on an internal combustion engine. The turbocharger mounting system has a turbocharger unit connected to a mounting mechanism. The turbocharger unit has a first flange and a second flange. The mounting mechanism has multiple clamping devices mounted on a support base. The clamping devices pivotally mount the first and second flanges on the support base. The turbocharger has a fixed connection with the first flange. The fixed connection limits the horizontal movement of the first flange. The turbocharger has a floating connection with the second flange. The floating connection permits the horizontal movement of the second flange.Type: GrantFiled: May 24, 2004Date of Patent: May 16, 2006Assignee: Internetional Engine Intellectual Property Company, LLCInventor: Anthony M. Anello