Abstract: An exemplary port (180, 180?) includes a first port opening (182, 182?) positioned at a location downstream from a compressor wheel (140), a second port opening (184, 184?) positioned at a location adjacent to a blade (144) of the compressor wheel (140), and a third port opening (186, 186?) positioned at a location upstream from the compressor wheel (140) wherein the first port opening and the third port opening define a first flow path and wherein a second flow path extending from the second port opening meets the first flow path at a confluence (188, 188?). The first flow path optionally includes a venturi section, for example, wherein the confluence coincides at least in part with the venturi section. Other exemplary ports, compressor shrouds, systems and methods are also disclosed.

Abstract: A variable geometry compressor housing module has a housing (1) into which a diffuser plate (3), a unison ring (5) and vanes (7) supported by a backplate (9) are inserted. The backplate is fixed to the housing by a crimping process. An actuation mechanism (13) for actuating the vanes (7) is provided on an inlet side of the housing (1). Furthermore, a shroud groove is partly defined by the diffuser plate (3).

Abstract: Vector compositions and methods are provided for transfecting donor cell populations and tissues for grafts, for reducing expression of mismatched proteins, thereby reducing immunogenicity of the grafted cells and tissues in a recipient subject.

Abstract: An exemplary assembly includes a turbocharger center housing with a bore; a turbocharger bearing with an annular groove having a diameter; and a substantially planar spring, seated at least partially in the annular groove for positioning the turbocharger bearing in the bore of the housing, where the spring includes a first end and a second end, a free standing inner diameter, a plurality of straight sections tangent to the free standing inner diameter and disposed between the first end and the second end and a curved section disposed between two of the straight sections where the spring balances an inward radial bias with an outward radial bias to reduce contact between the bearing and the housing and variation in a squeeze film thickness. Various exemplary springs, bearings, housings, assemblies, etc., are also disclosed.

Abstract: A method of operating a turbocharger is provided, wherein the turbocharger comprises a compressor for compressing inlet air to be supplied to an internal combustion engine and an exhaust gas turbine for driving said compressor. The turbocharger further comprises an electric motor for driving said compressor operable by an electric supply system including an alternator and an electric energy storage device. A connection between said alternator and said electric energy storage device is disconnectable by a switch. According to the present invention, the method comprises the following steps: detecting a transient condition, wherein said internal combustion engine is required to be accelerated; supplying electric energy to said electric motor only from said electric energy storage device at the beginning of said transient condition until a predetermined state is reached; supplying electric energy to said electric motor from the electric supply system after said predetermined state is reached.

Abstract: A variable position catalyst includes a catalyst housing (7) accommodating a catalyst body (1) and an actuator member (9) for moving the catalyst body (1) with respect to the catalyst housing (7) such that the catalyst body (1) can be moved to an active catalyst position (35) or to an inactive catalyst position (14). The variable position catalyst is incorporated in the exhaust line of an internal combustion engine upstream of a turbocharger. The variable position catalyst can be controlled such that the catalyst body (1) is moved to the active catalyst position (35) when the engine is in a predetermined first operation state, and the catalyst body is moved to the inactive catalyst position (14) when the engine is in a predetermined second operation state.

Abstract: An exemplary locating mechanism for locating a turbine bearing in a bore of a housing includes a conical pin having a pin axis where the conical pin includes a conical wall portion and a pin portion to locate a turbine bearing; a ball; and a socket disposed in a housing and extending between an opening of the housing and a bore of the housing, the socket having a socket axis where the socket includes a cylindrical surface and a conical surface. According to such a mechanism, disposition of the conical pin in the socket seats the conical pin along the socket axis and against the conical surface and disposition of the ball in the socket seats the ball along the socket axis and against the cylindrical surface. Accordingly, alignment of the ball with respect to the conical pin allows for transmission of force from the ball to the conical pin along the pin axis. Various other exemplary technologies are also disclosed.

Abstract: An exemplary multi-piece locating pin for a turbocharger assembly includes a screw piece with a nub and a securing feature to secure the screw piece in a housing of a turbocharger assembly and a pin piece with a receptacle configured to receive the nub and a locating surface to locate a bearing in a bore of the housing. An exemplary turbocharger assembly includes a housing with a bore, a bearing positioned in the bore where the bearing has a wall opening and a multi-piece locating pin secured to the housing and inserted at least partially in the wall opening to axially locate the bearing in the bore. Other exemplary pins, arrangements and methods are also disclosed.

Abstract: A vane for a turbine assembly of a turbocharger includes a first airfoil that includes a length between a leading edge and a trailing edge, a second airfoil that includes a length between a leading edge and a trailing edge where the length of the first airfoil optionally differs from the length of the second airfoil, and one or more intra-vane throats defined at least in part by the first airfoil and the second airfoil. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: A valve and cylinder head assembly, configured to fit a bank of cylinders of an internal combustion engine, can include a first exhaust valve for each corresponding cylinder of the bank of cylinders; a second exhaust valve for each corresponding cylinder of the bank of cylinders; a first exhaust port for each corresponding cylinder of the bank of cylinders, the first exhaust port configured to direct flow of exhaust to a first manifold in fluid communication with a first turbocharger; and a second exhaust port for each corresponding cylinder of the bank of cylinders, the second exhaust port configured to direct flow of exhaust to a second manifold in fluid communication with a second turbocharger; where the shape of the first exhaust ports differs from the shape of the second exhaust ports; where each of the first exhaust valves controls flow of exhaust to a respective one of the first exhaust ports; and where each of the second exhaust valves controls flow of exhaust to a respective one of the second exhaust

Abstract: An exemplary compressor wheel housing for a turbocharger compressor wheel includes a substantially cylindrical shroud surface definable with respect to a radial dimension and an axial dimension along a rotational axis of a compressor wheel with an origin coincident with a z-plane of the compressor wheel wherein the axial position of the shroud surface decreases with increasing radial position to a compressor wheel blade outer edge radius and a diffuser surface extending radially outward and axially downward from the cylindrical shroud surface wherein the diffuser surface includes a minimum diffuser surface axial position at a radial position less than about 1.25 times the compressor wheel blade outer edge radius and wherein the diffuser surface includes a greater axial position at a radial position beyond that corresponding to the minimum axial position. Various other exemplary methods, devices, systems, etc., are also disclosed.

Abstract: A desk including a book holder positioned at a predetermined angle relative to the surface of the desk. In one embodiment the book holder is deployable, and the desk surface includes a recess into which the deployable book holder fits when the deployable book holder is in the closed position. The recess optionally includes a rubber surface to avoid slipping of the bottom edge of a book (such as a text book) when the book is being held up with the deployable book holder. In another embodiment a deployable book holder includes an aperture, and a recess includes an island. In various embodiments, a proximal end of a desk surface, closest to where a user sits, may be wider than the distal end to provide adequate arm room for the user.

Abstract: A turbocharger includes a compressor housing (2) for accommodating a compressor wheel (5) drivable by an electric motor (21) and an electric motor (21) for driving a compressor wheel (5) accommodated in a compressor housing, the electric motor being supplied with electric power through at least one motor plug connector (12). The turbocharger further comprises a turbine housing (4), a center housing (3) for accommodating a shaft (6). The compressor wheel is driven by the turbine wheel (8) via the shaft (16) and can additionally be driven by the electric motor, where the compressor housing further includes at least one main power plug connector (16) disposed on an axial side of the compressor housing, facing the electric motor.

Abstract: An exemplary system for an internal combustion engine includes an exhaust turbine operably coupled to a generator, an intake air compressor operably coupled to an electric motor and mechanically decoupled from the exhaust turbine and a controller to direct electricity generated by the generator to one or more members of the group consisting of the electric motor, an additional electric motor, and a power storage. Various other exemplary technologies are also disclosed.

Abstract: An exemplary compressor for a turbocharger includes a compressor wheel that includes first and second compressor faces oriented back-to-back and a bore for mounting the compressor wheel to a shaft along a rotational axis of the compressor wheel; and a compressor housing that includes a first air inlet oriented to pass inlet air in an axial direction along the rotational axis to the first compressor face, a second air inlet positioned a distance radially from the rotational axis and oriented to pass inlet air in an axial direction parallel to the rotational axis and radially toward the rotational axis to the second compressor face, and a single volute that receives compressed air from the first and second compressor faces.

Abstract: A tamperproof and calibration device comprises an adjusting member for adjusting the position of a first element in respect to a second element in a direction which is different from another direction in which a fixing member acts for fixation of the first element with respect to the second element. The tamperproof and calibration device is applicable to a turbocharger comprising a variable nozzle device coupled with an actuated member to be actuated by an actuator, wherein the tamperproof and calibration device connects the actuated member with the actuator for calibration of the relative position of the actuated member of the variable nozzle device with respect to a predetermined position of the actuator.

Abstract: The present invention relates to a turbocharger assembly lock comprising a retaining ring partially disposed in a circumferential groove of a first turbocharger stage component and partially in a circumferential groove of a second turbocharger stage component so that the turbocharger stages are securely attached to each other.

Abstract: 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 compressor wheel, and a surface disposed in the bore where the surface is substantially normal to the axis of rotation and capable of seating a surface of a turbocharger shaft. The axial distance between the end surface for seating a back end of a compressor wheel and the surface disposed in the bore for seating a surface of a turbocharger shaft is selected to improve balancing of a rotating assembly. Various other exemplary devices, systems, methods, etc., are also disclosed.

Abstract: An exemplary method of treating a urologic symptom includes administering a daily dose of creatine to an individual wherein the daily dose of creatine lies in a range from about 0.35 mg to about 3.5 mg per kilogram body weight. Such an exemplary method may further include administering a dose of a compound that inhibits phosphodiesterase (e.g., at a time less than approximately 4 hours prior to sexual activity). Other exemplary methods, compounds, compositions, etc., are also disclosed.

Abstract: A variable geometry compressor for use in, for example, a turbocharger. A swing-vane diffuser is provided down-stream of the centrifugal compressor wheel. A nozzle ring is adjustable mounted on a center housing, and defines the nozzle face for the compressor diffuser. No spacers are deployed in the diffuser thereby improving efficiency, yet by stacking only the vanes and the nozzle ring, the diffuser clearances are maintained within strict tolerances. Further, seals, such as O-rings, are situated between the nozzle ring and the compressor housing and back plate to eliminate deleterious gas leaks between the diffuser and the spaces behind the nozzle ring.