Abstract: A system and method is provided for controlling an electric machine rotatably coupled to a rotatable shaft of an electronically-controlled one of a turbocharger and an exhaust-driven turbo supercharger fluidly coupled to an exhaust duct of an internal combustion engine. An operating temperature of a component of the engine is determined or estimated an operating temperature of a component of the engine or coupled to the engine, which is compared to a threshold temperature. The electric machine is controlled to operate as a motor in response to the determined or estimated temperature of the component being below a threshold temperature.

Abstract: The present invention relates to a friction disk (2) for a frictionally acting device (78) comprising an annular disk-shaped disk body (18), which has a first edge (30), a second edge (32) facing away from the first edge (30) and with a rotary driving contour (34), and an annular friction surface (26) with a first friction surface edge (36) facing the first edge (30) and a second friction surface edge (38) facing the second edge (32). The first edge (30) and/or the first friction surface edge (36) has a path deviating from a circular path. In addition, the present invention relates to a frictionally acting device (78) with such a friction disk (2).

Abstract: A pole piece (106) for a rotor (100) of a rotary electric machine (20) includes a hub portion (104) and a plurality of pole segments (106) distributed evenly about the hub portion (104). The pole segments each have a base (116) that is connected to the hub portion (104) and a tip (118) that is disposed axially opposite the base (116) along an axis (60) of the pole piece (106). Each pole segment (106) defines circumferentially opposite side surfaces (120, 122) that extend between the base (116) and the tip (118). Each pole segment (106) also defines radially opposite outer and inner surfaces (124, 126) that extend between the side surfaces (120, 122). A groove is recessed in the side surfaces (120, 122) of each pole segment (106). A radially innermost portion (136) of the groove (130, 132) is arranged proximate to the radially outer surface.

Abstract: The present invention relates to a freewheel (2) comprising a first race (18), a second race (20), and clamping elements (42, 44) between the first and second races (18, 20), said clamping elements connected in rotational engagement with the first race (18), wherein the clamping elements (42, 44) consist of first clamping elements (42) which are able to move between a first position, in which the first race (18) is able to rotate in relation to the second race (20) in a first direction of rotation (52), and a second position, in which the first race (18) is coupled in rotational engagement with the second race (20) via at least one of said first clamping elements (42) in the first direction of rotation (52). At least one first clamping element (42) is designed to be elastically deformable.

Abstract: A heating rod having a plurality of ceramic heating elements, a first strip-shaped contact sheet, a second strip-shaped contact sheet, and a housing in which the plurality of heating elements and the contact sheets are arranged. The first contact sheet electrically contacts only a part of the plurality of the heating elements, and the second contact sheet electronically contacts a second part of the plurality of the heating elements.

Abstract: A dual volute turbocharger for use with an internal combustion engine includes a valve for controlling exhaust gas flow to a turbine housing interior of the dual volute turbocharger. The dual volute turbocharger also includes a first volute and a second volute each adapted for fluid communication with the internal combustion engine. The dual volute turbocharger further includes a wall separating the first and second volutes and a valve seat. The valve seat and the wall collectively define a valve cavity. The valve is movable between a closed position and an open position. The valve and the wall of the turbine housing collectively define a first cross-sectional flow area. The valve and the valve seat collectively define a second cross-sectional flow area. A method of controlling the valve of the dual volute turbocharger is also disclosed.

Abstract: The present disclosure sets forth a one-way clutch. The one-way clutch can function with one or no races as opposed to conventional prior art one-way clutches. In so doing, the overall size and weight requirements of the one-way clutch are drastically reduced, which in turn drastically reduces the overall size and weight requirements of the transmission and vehicle employing the transmission as well. The present disclosure also provides a one-way clutch having an outer race provided by axially spaced plates. An inner race is rotatably mounted with respect to one of the plates and the inner race has a ratchet surface. Ratchet pawls are pivotably mounted with respect to the plates and have unidirectional engagement with the ratchet surface of the inner race. In addition to reducing material and labor production costs, such lessened size and weight penalties translate into higher transmission efficiency and better vehicle fuel economy.

Abstract: A valve having a metal insert with a fluid passage formed in the metal insert. A composite valve body is disposed at least partially around the metal insert and having at least one port in fluid communication with the fluid passage with the metal insert. A valve member is partially disposed in the metal insert and operable to control the fluid flow through the fluid passage of the metal insert and parts of the valve body.

Abstract: In accordance with one aspect of the present disclosure, a turbocharger having a rolling element bearing (REB) assembly contained within a bearing housing includes an axial damper configured to dampen and limit axial displacement of the REB assembly. The axial damper can include different embodiments, including an elastomeric axial damper, wire mesh, or oil film, for interrupting contact between the bearing assembly and a displacement limit when an axial displacement force exceeds a preload force. Further, the axial damper can include an apparatus having at least two axially compressible rings, where one of the axially compressible rings includes a displacement limit feature.

Abstract: A stator includes a cylindrical core with a plurality of longitudinally extending slots, a first winding set formed as a first cascaded wire in two radial layers of the slots, a second winding set formed as a second cascaded wire in two other radial layers of the slots, and a jumper connecting the first and second wires. A first winding set may have three cascaded phase wires in first and second layers of the slots, and a second winding set may have three cascaded phase wires in third and fourth layers of the slots. A winding set of a first phase may have a first cascaded wire in two radial layers of a first one of the slots, and a winding set of a second phase may have a second cascaded wire in two other radial layers of the first one of the slots.

Abstract: A system includes a dual volute turbocharger and a controller. The dual volute turbocharger includes a turbine housing. The turbine housing includes a wall, a valve seat, and an interior surface defining a turbine housing interior, a first volute, a second volute, and a turbine housing outlet. The dual volute turbocharger also includes at least one valve member engageable with at least one of the valve seat and the wall of the turbine housing. The at least one valve member and the wall of the turbine housing collectively define a first cross-sectional flow area. The at least one valve member and the valve seat of the turbine housing collectively define a second cross-sectional flow area. The controller is adapted to control the at least one valve member to have an area ratio constant operating range according to a brake-specific fuel consumption of the internal combustion engine.

Abstract: The present invention relates to a heat exchanger device for EGR (“Exhaust Gas Recirculation”) systems, with a constructive solution which minimizes thermal fatigue when boiling occurs. The invention is characterized by a specific configuration of the inner space of the shell divided into a first exchange sub-space and a second degassing space communicated with one another, and wherein the inlet and outlet ports are located at the end where the cold baffle is located.

Abstract: A transfer case with an actuator for operating a two-speed transmission (i.e., range mechanism) and a clutch (i.e., mode mechanism). The actuator employs a motor-driven cam structure that coordinates the movement of a first fork, which is associated with the range mechanism, and a second fork that is associated with the mode mechanism. A resilient coupling is employed to provide compliance between the motor and the cam structure in the event that tooth-on-tooth contact inhibits the range mechanism from changing from a high-range mode and a low range mode. Compliance is provided between the cam structure and the second fork in the event that tooth-on-tooth contact inhibits the mode mechanism from changing from a 2WD mode to a 4WD mode. A sensor system identifies the placement of the first and second forks in various positions and responsively generates associated sensor signals.

Abstract: An electric machine includes a stator core having a plurality of slots formed therein and a winding positioned in the slots of the stator core. The winding includes eight parallel paths distributed in layers of the stator core. The eight parallel paths include four pairs of adjacent paths. A first pair of adjacent paths crisscrosses a second pair of adjacent paths in the layers of the stator core. A third pair of adjacent paths crisscrosses a fourth pair of adjacent paths in the layers of the stator core. Neither the first pair nor the second pair of adjacent paths crisscrosses one or both of the third pair and the fourth pair of adjacent paths in the layers of the stator core.

Abstract: A turbocharger includes a rotor rotatably mounted within the turbocharger about a rotor axis, a balance ring provided at an axial end of the rotor, and a cutout provided in the balance ring, the cutout having an open end extending radially outward from the rotor axis.

Abstract: A lock pin for a VCT device that has a locked position, locking a housing assembly relative to a rotor assembly of the variable cam timing device, and an unlocked position. The lock pin has a body comprising a first diameter with a first area, a second diameter with a second area, and a chamber formed between the first area of the first diameter and the second area of the second diameter for receiving fluid, the first area being greater than the second area. When fluid is applied to the chamber through the variable cam timing phaser, a difference between first area and the second area defining the chamber creates a force imbalance, such that the oil pressure applied to the chamber of the body assists in maintaining the Sock pin in the locked position.

Abstract: A waste heat recovery system for recovering rejected heat of an internal combustion engine includes a turbine expander. The turbine expander outputs power based on a working fluid and includes a turbine blade that is rotatable by the working fluid, a shaft that is coupled to and rotatable by the turbine blade and extends along a longitudinal axis, and a nozzle assembly for directing the working fluid to the turbine blade for rotating the turbine blade. The nozzle assembly includes a nozzle housing disposed about the shaft and adjacent the turbine blade, and a nozzle for accelerating the working fluid. The nozzle component defines a nozzle throat having a geometrical configuration. The waste heat recovery system further includes a passive control coupled to the nozzle component for directing the working fluid.

Abstract: The present invention relates to a torsional vibration damper (18) comprising a first component (20) and a second component (22) which are torsionally elastically coupled to one another, wherein a force transmission device (26) is provided for transmitting an actuating force from the one axial side (48) of the torsional vibration damper (18) to the opposite axial side (50) of the torsional vibration damper (18) to a device (54) to be actuated. In addition, the present invention relates to an arrangement (2) for the drivetrain of a motor vehicle comprising such a torsional vibration damper (18).

Abstract: A driveline power transmitting component having a power transfer assembly disposed in a housing. The housing defines a vent aperture and a sump. A lubricating fluid is disposed in the sump and portions of the power transfer assembly travel through the lubricating fluid so that a lubrication surge zone and a splash lubrication zone are formed. The vent aperture is disposed in at least one of the surge zone, the splash lubrication zone and the sump when the driveline power transmitting component is disposed in at least one orientation in a predetermined range of operating positions in which the driveline power transmitting component can be operated. A breather relocation conduit is employed to permit air to be vented from the housing to the vent aperture without intaking lubricating fluid into the breather relocation conduit.

Abstract: A multi-phase electric machine having plurality of windings are mounted on the stator core and define a plurality of phases with each phase having at least two parallel windings. A standard pitch is defined between each pole of each phase, the pitch being a common circumferential spacing between corresponding slots of each pole. Each of the windings has a position change end loop at the same location, wherein the position change end loops define a non-standard pitch to thereby change the relative positions of the parallel windings in the slots. At each set of such position change end loops, the windings defining a greater pitch extend over the windings defining a lesser pitch.