Abstract: A laser cutting device (100) is configured to etch an inner surface of a journal bearing (18). The laser cutting device (100) includes a laser (102); a beam directing tool (130) that receives a beam (108) emitted from the laser (102) and selectively changes the direction of travel of the beam (108); a fixture (170) that supports the journal bearing (18) in a desired position relative to the beam directing tool (130); an actuator (148) connected to one of the beam directing tool (130) and the fixture (170), the actuator (148) providing relative movement between the beam directing tool (130) and the fixture (170); and a controller (180) that controls the intensity and duration of the beam (108) emitted from the laser (102); and the actuator (148), whereby material can be removed from a surface of the journal bearing (18) to a precise width and depth, and in any pattern.

Abstract: An annular balance adjusting device (50) is included in the clamping region of a turbocharger (1) rotating assembly. The annular balance adjusting device (50) includes an annular member (51, 61) having a non-uniform weight distribution. By setting the rotational orientation of the annular member (51, 61) relative to the rotating assembly ((not labeled)), imbalance of the rotating assembly can be addressed. The annular balance adjusting device (50) can be used to correct the imbalance of the rotating assembly, thereby reducing turbocharger (1) vibration and increasing turbocharger (1) durability.

Abstract: A turbocharger includes ported shroud compressor housing disposed about compressor wheel having air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has inner wall surface defining first section extending axially along longitudinal axis proximate to compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section radially away from and along longitudinal axis and distal to compressor wheel.

Abstract: A turbocharger includes ported shroud compressor housing disposed about a compressor wheel, having an air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with a recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has an inner wall surface defining a first section extending axially along the longitudinal axis and proximate to the compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section along longitudinal axis and distal to the compressor wheel.

Abstract: A turbocharger includes ported shroud compressor housing disposed about a compressor wheel, having an air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with a recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has an inner wall surface defining a first section extending axially along the longitudinal axis and proximate to the compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section along longitudinal axis and distal to the compressor wheel.

Abstract: A turbocharger includes ported shroud compressor housing disposed about compressor wheel having air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has inner wall surface defining first section extending axially along longitudinal axis proximate to compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section radially away from and along longitudinal axis and distal to compressor wheel.

Abstract: A laser cutting device (100) is configured to etch an inner surface of a journal bearing (18). The laser cutting device (100) includes a laser (102); a beam directing tool (130) that receives a beam (108) emitted from the laser (102) and selectively changes the direction of travel of the beam (108); a fixture (170) that supports the journal bearing (18) in a desired position relative to the beam directing tool (130); an actuator (148) connected to one of the beam directing tool (130) and the fixture (170), the actuator (148) providing relative movement between the beam directing tool (130) and the fixture (170); and a controller (180) that controls the intensity and duration of the beam (108) emitted from the laser (102); and the actuator (148), whereby material can be re moved from a surface of the journal bearing (18) to a precise width and depth, and in any pattern.

Abstract: An annular balance adjusting device (50) is included in the clamping region of a turbocharger (1) rotating assembly. The annular balance adjusting device (50) includes an annular member (51, 61) having a non-uniform weight distribution. By setting the rotational orientation of the annular member (51, 61) relative to the rotating assembly ((not labeled)), imbalance of the rotating assembly can be addressed. The annular balance adjusting device (50) can be used to correct the imbalance of the rotating assembly, thereby reducing turbocharger (1) vibration and increasing turbocharger (1) durability.

Abstract: A tuned mass damper system and vibration damper method for a hybrid electric road vehicle is disclosed. The vehicle has a powertrain with an engine, at least one electric machine and a battery. The battery mass forms a part of a vehicle vibration absorber that attenuates vibrations induced by road wheels of the vehicle.

Abstract: An engine lubrication oil flow control system and control method for an engine in a hybrid electric vehicle powertrain is disclosed. An engine lubrication oil pump is powered by a lubrication oil pump motor. Provision is made to start the lubrication pump motor at the initiation of engine cranking upon a transition from an engine-off driving mode to an engine-on driving mode. An engine oil pressure signal is used to indicate engine filter maintenance is needed. The oil pump motor may be powered by a vehicle powertrain traction battery.

Abstract: An engine lubrication oil flow control system and control method for an engine in a hybrid electric vehicle powertrain is disclosed. An engine lubrication oil pump is powered by a lubrication oil pump motor. Provision is made to start the lubrication pump motor at the initiation of engine cranking upon a transition from an engine-off driving mode to an engine-on driving mode. An engine oil pressure signal is used to indicate engine filter maintenance is needed. The oil pump motor may be powered by a vehicle powertrain traction battery.

Abstract: A hybrid electric vehicle includes an internal combustion engine and a traction battery. A rotating electrical machine coupled to said engine charges the traction battery. A motor driven charge air booster operatively connected with said traction battery and with said air inlet functions as an electrically driven supercharger.

Abstract: A tuned mass damper system and vibration damper method for a hybrid electric road vehicle is disclosed. The vehicle has a powertrain with an engine, at least one electric machine and a battery. The battery mass forms a part of a vehicle vibration absorber that attenuates vibrations induced by road wheels of the vehicle.

Abstract: A system and method for controlling the speed of an engine includes determining a desired engine power output and engine speed, and determining whether the desired engine speed is within one of a number of predetermined engine speed ranges. It is then determined whether a noise-vibration level for the vehicle is within a target range when it is determined that the desired engine speed is within one of the predetermined engine speed ranges. The noise-vibration level is a function of at least one of a corresponding vibration level for one or more vehicle mechanical systems, and a noise level for the passenger compartment for the engine operating at the desired engine speed. The engine is then controlled at the desired engine speed when the determined noise-vibration level is within a target range, and it is determined that the desired engine speed is within one of the predetermined engine speed ranges.