Abstract: An exhaust gas turbocharger (10) including a turbine section (14), a compressor section (12), a bearing housing (16) disposed between an fluidly connected to the turbine section (14) and the compressor section (12), and an oil flow means connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42).

Abstract: A turbocharger (1) includes a wastegate valve (30) supported on the turbine housing (8), and a pneumatic actuator (100) configured to actuate the wastegate valve (30). The pneumatic actuator (100) includes a housing (101) separated into compartments (104, 108) by a separating member (110, 112). The actuator (100) includes a piston (112) disposed in the housing (101) that defines at least a portion of the separating member (110, 112), a piston-biasing spring (120) disposed in the housing (101), a first in let (126) that is in fluid communication with the first compartment (104), the first inlet configured to be connected to a non-zero-pressure fluid source (8), and a second inlet (116) that is in fluid communication with the second compartment (108), the second inlet (116) configured to be connected to a non-zero-pressure fluid source (104).

Abstract: An oil-lubricated, tapered-land thrust bearing assembly (60) for automotive turbochargers (10) including a thrust bearing (30). The thrust bearing (30) includes an assembly of a base (62) with at least one insert (64 or 66), which is designed to control the oil film as a purposefully compliant structure based on applied force to optimize performance at low and high power operation. The ramp angle is relatively large at a low load and decreases to a smaller ramp angle at higher loads. On one side of the turbocharger (10), the thrust bearing assembly (60) may operate with a flinger sleeve (34) and a thrust washer (24) within a complementary bearing housing cover (32).

Abstract: An exhaust gas turbocharger (10) including a turbine section (14), a compressor section (12), a bearing housing (16) disposed between an fluidly connected to the turbine section (14) and the compressor section (12), and an oil flow means connected to the bearing housing (16) for controlling and metering oil flow to the bearing assembly (42).

Abstract: A number of variations may include a product including a rotor comprising a shaft having a rotation axis, a bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing, and a solid damper at least partially surrounding the bearing wherein the damper is constructed and arranged to restrict axial movement of the bearing.

Abstract: A bearing system and method may include a first bearing assembly that may have an inner race. An outer race may be disposed around the inner race and may be rotatable relative to the inner race. A second bearing assembly may be disposed around the first bearing assembly. The second bearing assembly may be an air bearing. The outer race may be engageable with the inner race through the engagement mechanism that acts on the outer race so that the inner and outer races rotate together.

Abstract: A turbocharger (1) includes a wastegate valve (30) supported on the turbine housing (8), and a pneumatic actuator (100) configured to actuate the wastegate valve (30). The pneumatic actuator (100) includes a housing (101) separated into compartments (104, 108) by a separating member (110, 112). The actuator (100) includes a piston (112) disposed in the housing (101) that defines at least a portion of the separating member (110, 112), a piston-biasing spring (120) disposed in the housing (101), a first in let (126) that is in fluid communication with the first compartment (104), the first inlet configured to be connected to a non-zero-pressure fluid source (8), and a second inlet (116) that is in fluid communication with the second compartment (108), the second inlet (116) configured to be connected to a non-zero-pressure fluid source (104).

Abstract: An oil-lubricated, tapered-land thrust bearing assembly (60) for automotive turbochargers (10) including a thrust bearing (30). The thrust bearing (30) includes an assembly of a base (62) with at least one insert (64 or 66), which is designed to control the oil film as a purposefully compliant structure based on applied force to optimize performance at low and high power operation. The ramp angle is relatively large at a low load and decreases to a smaller ramp angle at higher loads. On one side of the turbocharger (10), the thrust bearing assembly (60) may operate with a flinger sleeve (34) and a thrust washer (24) within a complementary bearing housing cover (32).