Abstract: A hydraulic tensioner having a piston sliding around an outside surface of a pin or rod, so that the high pressure chamber for chain control is created by the area between the piston internal diameter and the rod outside diameter. A spring around the outside of the rod presses against the bottom of the piston, biasing the piston outward during low oil pressure conditions. Preferably, the piston is steel and the rod is aluminum, the reverse of prior art designs, which means that as temperature increases, the piston to bore clearance reduces. This can offset the oil viscosity reduction and maintain the same performance over operating temperatures.

Abstract: A waste gate component for a turbo charger made of a ferritic steel including C, Cr, Ni, Nb, V, Mn, and optionally Si, and Ti as main alloying elements.

Abstract: A hydraulic actuating device for a coupling device having an actuating piston, a piston chamber assigned to the actuating piston and a supply chamber which is arranged further inwards in the radial direction than the piston chamber and via which a hydraulic fluid can be supplied to the piston chamber, wherein the supply chamber is delimited in a first axial direction by a first housing part and in a second axial direction opposite to the first axial direction by a second housing part, and the first housing part is fastened to a hub. The first housing part is fastened to the hub by clamping the second housing part in the axial direction between the first housing part and the hub. Furthermore, the present invention relates to a coupling device having such an actuating device as well as a method for manufacturing such an actuating device.

Abstract: A heat exchanger for cooling high temperature components of a circuit board is disclosed. The heat exchanger may comprise a housing including a coolant inlet, a coolant outlet, a first side wall, a second side wall, and an upper housing portion assembled with a lower housing portion. The heat exchanger may further include a first array of plates on the upper housing portion, and a second array of plates on the lower housing portion extending parallel to and interleaved with the first array of plates. Each of the plates may have an aperture that is laterally and vertically opposed to the aperture of an immediately adjacent plate. The interleaving first and second arrays of plates may create a lateral and vertical serpentine fluid flow path.

Abstract: An electric machine includes a stator formed from a plurality of stator laminations arranged in a first lamination group and a second lamination group that is circumferentially off-set from the first lamination group. The first lamination group and the second lamination group forming a tortuous flow path that extends axially across the stator. Each of the plurality of stator laminations of the first lamination group includes a body having an inner surface section and an outer surface section. The inner surface section includes a plurality of stator teeth. A plurality of cooling channel defining members is integrally formed with and extend radially outwardly from the outer surface section. Each of the plurality of cooling channel defining members being spaced from others of the plurality of cooling channel defining members by a corresponding gap.

Abstract: A turbine housing for an exhaust turbocharger is configured for receiving a turbine wheel rotatable about an axis. The housing includes an exhaust gas inlet, an exhaust gas outlet pointing in an outlet direction, and a single-flow, spiral exhaust gas routing. The routing has a volute and a volute outlet gap configured so that exhaust gas flows from the volute to the wheel. The routing is fluidically connected to the inlet and is defined by an internal wall of the housing. The volute has a portion which encircles the axis and has a convexity of the internal wall. The convexity, counter to the outlet direction, extends beyond the volute outlet gap. Further, sectional faces, through which the axis runs, each have a volute contour with a straight linear portion. The linear portion, conjointly with the axis, defines an angle facing the outlet that is less than or equal to 90°.

Abstract: A chain tensioning device which combats natural build-up of chain slack. In controlling the chain slack, the torque at which a chain jumps occurs is delayed resulting in a higher jump torque performance.

Abstract: An electric machine includes a stator assembly having a core with windings positioned on the core. The windings including in-slot portions, end turns, and leads. The leads include a plurality of inner leads extending from conductors in an inner layer of the slots and outer leads extending from conductors in an outer layer of the slots, the inner leads and the outer leads defining a semi-cylindrical space. The stator assembly further includes a bus bar assembly connected to the leads, the bus bar assembly including a plurality of series connections and a plurality of phase leads. Each of the series connections connects one of the inner leads to one of the outer leads within the semi-cylindrical space. Each of the phase leads connects at least one of the inner leads to at least one of the outer leads.

Abstract: A torque transfer assembly includes an engine starter, an electric machine, a torque converter, and a disconnect clutch further defined as a mechanical clutch. The vehicle includes an internal combustion engine including an output shaft, and a transmission. The engine starter is adapted to be rotatably coupled to the output shaft for rotating the output shaft to start the internal combustion engine. The electric machine is adapted to be rotatably coupled to the transmission for delivering rotational torque to the transmission. The torque converter is rotatably coupled to the electric machine and adapted to be rotatably coupled to the transmission. The mechanical clutch is adapted to be rotatably coupled to the output shaft and the torque converter. The mechanical clutch is adapted to selectively rotatably couple the output shaft to the torque converter and is adapted to selectively rotatably decouple the output shaft from the torque converter.

Abstract: An engine variable camshaft timing (VCT) phaser assembly is equipped in an internal combustion engine (ICE) to adjust the rotation of the engine's camshaft relative to the engine's crankshaft. The adjustments advance and retard the opening and closing movements of the engine's intake and exhaust valves. An electric motor and a planetary gear set work together amid use of the VCT phaser assembly. The planetary gear set can include two or more ring gears, planet gears, and a sun gear. A backlash condition sometimes experienced in previous VCTs is minimized in the VCT phaser assembly by one or more springs that urge the planet gears into engagement with the ring gears.

Abstract: A flap arrangement 10 for a turbine 2 of an exhaust-gas turbocharger 2, is disclosed, in particular for a wastegate valve of the turbine, having a spindle 100 for rotatable mounting of the flap arrangement 10 in a turbine housing 3, a lever arm 200 coupled to the spindle 100, and a flap plate 300 coupled to the lever arm 200. The flap plate 300 has a flexible part 330 in a radially outer region of the flap plate 300, such that by applying a closing force to the flap arrangement 10 when the flap plate 300 is in contact with a flap seat 500 in the turbine housing 3, elastic and/or plastic deformation of the flexible part 330 of the flap plate 300 can be caused to compensate for thermal deformation of the turbine housing 3, exhaust deposits and/or wear.

Abstract: An electrically-assisted turbocharger includes a shaft extending along an axis, a compressor wheel, a turbine wheel, a housing, and an electric machine. The electric machine includes a rotor rotatably coupled to the shaft and a stator lamination stack radially spaced from the rotor. The stator lamination stack has circumferentially spaced teeth defining gaps therebetween. The electric machine also includes a coil winding disposed in the gaps between the circumferentially spaced teeth and a guard plate disposed at one of the first and second stator ends. The guard plate extends radially away from the axis and includes a plurality of teeth guards extending radially, with each of the teeth guards aligned with one of the teeth of the stator lamination stack to electrically insulate the coil winding from the teeth of the stator lamination stack.

Abstract: An electric drive unit with an electric motor, a differential assembly, a transmission that transmits rotary power from the electric motor to the differential assembly, and a pair of output shafts that are rotatably coupled to respective differential output members of the differential assembly. The electric drive unit is configured to provide low cost, reliable cooling and/or lubrication to various components of the electric drive unit.

Abstract: A method is provided for producing a smooth transition between overmodulation and six-step operation of a SVPWM-controlled 3-phase electric machine. In one aspect, the method predicts the PWM sample for which the control voltage vector will cross the middle of each SVPWM hexagon sector. Then, based on the current voltage angle and duty cycle, as well as on an estimated future voltage angle and duty cycle, an average duty cycle is calculated and inserted. In addition, a PWM carrier waveform is selected to ensure the PWM pulses applied to each period result in continuous switching states.

Abstract: A hydraulically-actuated variable camshaft timing (VCT) system comprises a spool valve including a sleeve and a spool, having a plurality of radially-outwardly extending lands, received within a sleeve; a sleeve fluid pathway, extending axially along the sleeve and formed within the sleeve, configured to receive fluid from a fluid supply; an advancing port in the sleeve in fluid communication with an advancing chamber of a hydraulically-actuated camshaft phaser; a retarding port in the sleeve in fluid communication with a retarding chamber of the hydraulically-actuated camshaft phaser; a first fluid supply port formed in the sleeve; a second fluid supply port formed in the sleeve; and an exhaust port axially positioned in the sleeve in between the first fluid supply port and the second fluid supply port or in between the advancing port and the retarding port, wherein the exhaust port is configured to selectively receive fluid from either the advancing chamber or the retarding chamber depending on an axial pos

Abstract: A clutch system includes a first clutch member and a second clutch member for transmitting torque from a vehicle power generator. The first clutch member includes a first a first clutch element having a first surface and a first friction material disposed on said first surface. The second clutch member is configured to engage the first clutch plate and includes a second clutch element having a second surface and a second friction material disposed on the second surface. The first friction material is configured to be engaged with the second friction material during operation of the vehicle power generator.

Abstract: A variable turbine geometry assembly includes an adjustment ring extending along and rotatable about an axis, at least one vane lever coupled to the adjustment ring, and at least one vane coupled to the at least one vane lever. The variable turbine geometry assembly also includes a biasing member coupled to the adjustment ring at a first circumferential location on the adjustment ring and coupled to the adjustment ring at a second circumferential location on the adjustment ring. The biasing member extends from the first circumferential location to the second circumferential location. The biasing member is operably in contact with the at least one vane lever between the first circumferential location and the second circumferential location to bias the at least one vane lever toward the adjustment ring and to reduce vibration between the adjustment ring and the at least one vane lever.

Abstract: An assembly for an electric vehicle includes an input shaft extending along a first axis and an electric motor rotatably coupled to the input shaft and co-axially aligned with the first axis. The assembly also includes an intermediate input shaft extending along a second axis and rotatably coupled to the input shaft. The assembly also includes an output shaft extending along the second axis and spaced from the intermediate input shaft along the second axis. The assembly further includes a planetary gearset rotatably coupled to the intermediate input shaft and to the output shaft, and co-axially aligned with the second axis. The assembly includes a final drive co-axially aligned with the first axis and rotatably coupled to the output shaft for providing rotational torque to at least one of a first and second set of wheels of the electric vehicle.

Abstract: A phaser which has an offset or remote pilot valve added to the hydraulic circuit to manage a hydraulic detent switching function, in order to provide a mid-position lock for cold starts of the engine, either during cranking or prior to complete engine shutdown. The mid-position locking of the phaser positions the cam at an optimum position for cold restarts of the engine.

Abstract: A parking mechanism located on a final drive or primary drive of a vehicle to engage or disengage an output shaft connected to wheels of the vehicle. The parking mechanism includes a back drive chain on the final drive or primary drive that engages with a parking pawl. A cam assembly biases the parking pawl to engage with the back drive chain to prevent rotation of the wheels.