Anisotropic bearing supports for turbochargers
AssigneeHoneywell International Inc.
InventorsWalter Lee Meacham, Kostandin Gjika, Mohsiul Alam, Gerald D. LaRue
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Abstract
An exemplary anisotropic member supports a semi-floating bearing in a bore and can reduce non-synchronous vibration of the bearing in the bore. An anisotropic member can include an annular body configured to receive a semi-floating bearing and to space the bearing a distance from a bore surface and can be configured to impart anisotropic stiffness and damping terms to the semi-floating bearing when positioned in the bore. Such a member is suitable for use in a rotating assembly for a turbocharger where the bearing may be a semi-floating bearing. Various exemplary members, bearings, housings, assemblies, etc., are disclosed.
Claims20
A rotating assembly for a turbocharger comprising:
- a center housing that comprises a through bore having a central axis;
- a semi-floating bearing positioned in the through bore;
- an anisotropic member positioned in the through bore between the semi-floating bearing and a surface of the center housing wherein the surface defines at least part of the through bore of the center housing;
- and
- a shaft, rotatably supported in the center housing by the semi-floating bearing, the shaft connected at one end to a compressor wheel and at another end to a turbine wheel.
An anisotropic member for supporting a semi-floating bearing in a bore and reducing non-synchronous vibration of the semi-floating bearing in the bore, the anisotropic member comprising:
- an annular body configured to receive a semi-floating bearing and to space the bearing a distance from a bore surface and configured to impart anisotropic stiffness and damping terms to the semi-floating bearing when positioned in the bore.
Dependencies are inferred from the claim text.