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| Number | Title | Issue Date |
| 7794213 | Integrated acoustic damper with thin sheet insert An exemplary noise damper for a compressor of a turbocharger includes a compressor housing comprising a cavity substantially adjacent a gas flow surface of a conduit to a compressed gas outlet of the compressor housing and an insert that spans the cavity and forms a... | 09/14/2010 |
| 7774937 | Heat exchanger with divided coolant chamber A heat exchanger has a shell and tube stack disposed within a shell inner chamber. A coolant chamber extends from a shell end, accommodates a portion of the tube stack, and has a sidewall that extends outwardly from the tube stack. A divider is disposed within the c... | 08/17/2010 |
| 7545115 | Motor control and driver for electric boosting application The invention proposes a system for driving a compressor, comprising an induction motor (2) for driving the compressor (3), said induction motor including a squirrel cage rotor, and a controller (1) for controlling the induction motor, said cont... | 06/09/2009 |
| 7458764 | Nozzle device for a turbocharger and associated control method A variable nozzle device for a turbocharger comprises an annular arrangement of vanes disposed in a nozzle formed between an inner wall and an outer wall, the outer wall being constituted by an axially displaceable member, wherein the axially displaceable member is ... | 12/02/2008 |
| 7322403 | Heat exchanger with modified tube surface feature A heat exchanger includes a shell that has an inner chamber defined by an inside wall surface. A tube stack disposed within the inner chamber and includes a plurality of flat elongated tubes that define a first fluid flow path. The tubes each include a wire that is ... | 01/29/2008 |
| 7305827 | Inlet duct for rearward-facing compressor wheel, and turbocharger incorporating same A turbocharger includes a compressor wheel having back-to-back impellers (i.e., a forward-facing impeller and a rearward-facing impeller) mounted on the same shaft. The two impellers are independently supplied with inlet air via separate inlet ducts and discharge pr... | 12/11/2007 |
| 7305826 | Axial loading management in turbomachinery Exemplary vanes for a turbocharger having variable nozzle geometries are disclosed. In one aspect, each of the vanes includes two axial surfaces that are on opposite sides of the vane. The opposite axial surfaces include two corresponding chambers. These chambers ar... | 12/11/2007 |
| 7287579 | Heat exchanger An exemplary heat exchanger includes a heat exchanger core having a core side fluid space and a cover plate and a substantially U-shaped wall fitted at one end with an inlet header and, at an opposing end, with an outlet header, which in combination with the cover p... | 10/30/2007 |
| 7281378 | Surge control system for a compressor A compressor active surge control system that includes an air recirculation line that has a first end connected downstream of a compressor outlet and a second end connected upstream of a compressor inlet. The gas recirculation line recirculates compressed air from t... | 10/16/2007 |
| 7255530 | Vane and throat shaping An exemplary vane for a radial turbine assembly includes a hub end and a shroud end that define vane height, a leading edge and a trailing edge that define vane length along a camberline and an inner surface and an outer surface that extend from the hub end to the s... | 08/14/2007 |
| 7249930 | Variable-nozzle turbocharger with integrated bypass A turbine housing assembly includes a tubular piston disposed in a bore of a turbine housing and axially slidable between a closed position and an open position for blocking a nozzle by an amount dependent on axial positioning of the piston. A bypass control member ... | 07/31/2007 |
| 7237381 | Control of exhaust temperature for after-treatment process in an e-turbo system A method for operating a turbocharged internal combustion engine having an after-treatment device for treating exhaust gas discharged from the turbocharger, wherein exhaust gas from the engine is passed through a variable-geometry mechanism for regulating power prod... | 07/03/2007 |
| 7228890 | Heat exchanger with integral shell and tube plates A heat exchanger comprises a shell formed from two joined-together shell members. Each shell member includes a tube plate that is integral with each respective shell member and that defines an axial end of the shell member. The shell members are joined along respect... | 06/12/2007 |
| 7214037 | Retention of ball bearing cartridge for turbomachinery An exemplary housing for a turbocharger includes a substantially cylindrical bore having a longitudinal axis, an inner diameter, a proximate end and a distal end; a counterbore positioned at the distal end, substantially centered on the longitudinal axis and having ... | 05/08/2007 |
| 7204241 | Compressor stage separation system An exemplary separator for coupling to a compressor includes a separation region substantially defined by an outer wall, part of an inner wall and an intermediate wall and an open region substantially defined by the inner wall and the intermediate wall and adjacent ... | 04/17/2007 |
| 7198037 | Bypass for exhaust gas cooler An exhaust gas recirculation cooler, typically of the drawn cup design, with a bypass and control valve is disclosed. The control valve can direct a proportion of the exhaust gas to the cooler and a proportion to bypass the cooler depending on the input temperature ... | 04/03/2007 |
| 7165537 | Charge air cooler A charge air cooler with an integral precooler is disclosed which cools charge air by using both liquid coolant and air coolant. The charge air path is not affected by the use of the liquid coolant. The charge air cooler disclosed can cool particularly hot charge ai... | 01/23/2007 |
| 7165540 | Dual and hybrid EGR systems for use with turbocharged engine EGR systems for an internal combustion engine configured to operate using multiple-staged turbochargers, or a pair of single stage turbochargers, to provide exhaust gas recirculation to meet emissions requirements while not affecting engine performance. One or two E... | 01/23/2007 |
| 7160082 | Turbocharger with balancing features An exemplary thrust collar for a turbocharger includes a substantially annular body that includes an axis of rotation, a bore, opposing end surfaces where one of the end surfaces is substantially normal to the axis of rotation and capable of seating a back end of co... | 01/09/2007 |
| 7156282 | Titanium-aluminide turbine wheel and shaft assembly, and method for making same A titanium-aluminide turbine wheel (120, 220, 320, 420) is joined to the end of a shaft (110, 210, 310, 410) by utilizing a titanium surface on the end of the shaft to be joined to the wheel, and electron-beam welding the wheel onto the titanium surfac... | 01/02/2007 |
| 7147433 | Profiled blades for turbocharger turbines, compressors, and the like A rotor and an apparatus including a rotor are provided. For example, the apparatus can be a turbine or compressor having a housing in which the rotor rotates while gas is circulated therethrough. The rotor has a plurality of radially extending blades, and each blad... | 12/12/2006 |
| 7128137 | Nested attachment junction for heat exchanger Heat exchangers of this invention include a shell having an inner chamber defined by an inside wall surface, and having at least one opening adjacent an end of the shell. A tube bundle comprising a plurality of assembled together tubes are disposed within the inner ... | 10/31/2006 |
| 7124812 | Heat exchanger Apparatus and method for cooling heated fluids, such as exhaust gases, flowing through a heat exchanger comprising one or more exhaust plenums and one or more coolant plenums, and providing increased coolant velocity in that portion of the coolant plenums contacting... | 10/24/2006 |
| 7118335 | Compressor wheel and shield An exemplary shield includes an attachment mechanism disposed on an outer surface to attach the shield to a joint of a boreless compressor wheel and a passage extending from a proximate end of the shield to a distal end of the shield. An exemplary method includes in... | 10/10/2006 |
| 7111617 | Diverter for exhaust gas recirculation cooler A diverter, apparatus and method of bypassing an exhaust gas recirculation cooler in order to selectively cool recirculated exhaust gas is disclosed. The diverter relies on the Coanda effect to direct the exhaust gas flow to the cooler or to a bypass around the cool... | 09/26/2006 |
| 7108488 | Turbocharger with hydrodynamic foil bearings A turbocharger includes a foil bearing assembly mounted in a center housing between a compressor and a turbine of the turbocharger. The bearing assembly forms a unit installable into the center housing from one end thereof, and the center housing is a one-piece cons... | 09/19/2006 |
| 7104693 | Multi-thickness film layer bearing cartridge and housing An exemplary squeeze film bearing cartridge for a turbocharger includes a center section, two outer sections having a first outer diameter and two intermediate sections having a second outer diameter, the intermediate sections positioned intermediate the center sect... | 09/12/2006 |
| 7097432 | Sliding vane turbocharger with graduated vanes A turbocharger having a variable geometry turbine inlet incorporating a cylindrical piston movable to vary the area of the inlet nozzle into the turbine. Vanes mounted to the piston for flow control in the nozzle are received through a slotted heat shield which prov... | 08/29/2006 |
| 7073573 | Decreased hot side fin density heat exchanger Apparatus and method for cooling heated fluids, such as exhaust gases, flowing through a heat exchanger including at least one exhaust gas plenum with fins or other heat transfer structure and at least one coolant plenum, and providing decreased heat exchange in tha... | 07/11/2006 |
| 7066719 | Bore and shaft assembly An exemplary bore for a shaft of a turbomachine includes a longitudinal axis extending generally from an inner end to an outer end of the bore, an outer seat disposed proximate to the outer end of the bore at an outer seat radius for an outer seal ring wherein the o... | 06/27/2006 |
| 7066715 | Turbine efficiency tailoring A turbomachinery apparatus. A turbine is provided with a retainer having a bore step element for turbine wheel retention, and with an aperture manifesting a tailored diameter less than the trim diameter of the turbine, thereby to permit customization of the turbine ... | 06/27/2006 |
| 7059820 | Noise control Methods, devices, and/or systems for controlling vibration and/or acoustic noise. An exemplary method senses noise and/or, for example, rotational speed of a rotating shaft, determines control parameters and actuates one or more actuators. An exemplary device includ... | 06/13/2006 |
| 7059129 | Variable geometry turbocharger A variable geometry turbocharger includes vanes disposed therein having an inner airfoil surface oriented adjacent a turbine wheel, and an outer airfoil surface oriented opposite and parallel to the inner airfoil surface. The vane includes first and second axial sur... | 06/13/2006 |
| 7056103 | Method and apparatus for cooling turbomachinery components An apparatus and method for cooling components associated with turbomachinery by means of one or more venturis placed in the intake flow of air into the compressor with an air inlet upstream of the venturis and an air outlet integral to at least one venturi. The par... | 06/06/2006 |
| 7055574 | Method of producing metal article having internal passage coated with a ceramic coating The present application relates to a method of producing a metal article having an internal passage coated with a ceramic coating. The method comprises: preparing a core for defining the internal passage; applying the ceramic coating on the core; assembling the core... | 06/06/2006 |
| 7040874 | Integrated turbocharger lubricant filter system An exemplary center housing for a turbocharger includes a filter well for receiving a lubricant filter unit. An exemplary filter unit, for attachment to a center housing of a turbocharger, includes an attachment mechanism to attach the filter unit to the center hous... | 05/09/2006 |
| 7040867 | Compressor wheel joint An exemplary compressor wheel includes a proximate end, a distal end, an axis of rotation, a z-plane positioned between the proximate end and the distal end, and a joint having an axis coincident with the axis of rotation and an end surface positioned between the z-... | 05/09/2006 |
| 7036562 | Heat exchanger with core and support structure coupling for reduced thermal stress A heat exchanger with a core, a support structure and a mount. The core is variable in size and has a lower temperature fluid port and a higher temperature fluid port. The mount is positioned between the core and the support structure, adjacent to the higher tempera... | 05/02/2006 |
| 7024855 | Variable geometry turbocharger with sliding piston A turbocharger having a variable geometry turbine inlet incorporates a piston movable to vary the area of the inlet nozzle into the turbine. Vanes extending from the heat shield for flow control in the nozzle are engaged by the piston in a first closed position. In ... | 04/11/2006 |
| 7017706 | Turbine noise absorber Exemplary methods, devices and/or system for reducing noise produced by a turbine, such as, a turbocharger turbine. An exemplary exhaust conduit employs material to absorb exhaust-borne noise and/or structure-borne noise. Another exemplary exhaust conduit employs fe... | 03/28/2006 |
