Turbocharger bearing assembly and method for providing the same
AssigneeGe Global Sourcing LLC
InventorsYaser Bastani, Walter Chandler
Life of this patent
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Abstract
An integrated bearing assembly includes a thrust bearing disposed along a face of a turbocharger casing in a turbocharger and extending circumferentially around an axis of rotation of a rotor of the turbocharger, and a dual film journal bearing radially disposed between the rotor and the turbocharger casing which can be semi-floating or fully floating. The journal bearing includes a shoulder step radially extending away from the rotor. The shoulder step of the journal bearing engages one or more of the thrust bearing or the turbocharger casing to prevent axial movement of the dual film journal bearing relative to the turbocharger casing.
Claims20
An integrated bearing assembly comprising:
- a thrust bearing disposed along a surface of a turbocharger casing in a turbocharger and extending circumferentially around an axis of rotation of a rotor of the turbocharger;
- and
- a journal bearing radially disposed between the rotor and the turbocharger casing, wherein the journal bearing includes a shoulder step radially extending away from the rotor and along the surface of the turbocharger casing that also engages the thrust bearing, wherein the shoulder step of the journal bearing prevents axial movement of the journal bearing relative to the turbocharger casing by engaging both the thrust bearing and the turbocharger casing.
An integrated bearing assembly comprising:
- a thrust bearing disposed along a surface of a turbocharger casing, the thrust bearing including a recess along an inner diameter of the thrust bearing;
- and
- a journal bearing radially disposed between a rotor and the turbocharger casing, wherein the journal bearing includes a shoulder step radially extending away from the rotor toward the thrust bearing, the shoulder step radially extending along the surface of the turbocharger casing that also engages the thrust bearing, wherein the shoulder step of the journal bearing prevents axial movement of the journal bearing by engaging both the thrust bearing and the turbocharger casing.
A method comprising:
- obtaining a journal bearing of a turbocharger having an outwardly and radially extending shoulder step;
- positioning the journal bearing into a casing of the turbocharger;
- and
- positioning a thrust bearing onto a surface of the casing of the turbocharger such that the shoulder step of the journal bearing radially extends along the surface of the casing of the turbocharger that also engages the thrust bearing, the shoulder step preventing axial movement of the journal bearing relative to one or more of the thrust bearing or the casing of the turbocharger by engaging both the thrust bearing and the casing of the turbocharger.
Dependencies are inferred from the claim text.