Anisotropic bearing supports for turbochargers
AssigneeHoneywell International Inc.
InventorsWalter Lee Meacham, Mohsiul Alam, Gerald D. LaRue, Kostandin Gjika
Life of this patent
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Abstract
An exemplary anisotropic member (625, 1200, 1600, 1700, 1800, 1950) supports a bearing in a bore and can reduce non-synchronous vibration (NSV) of the bearing in the bore. An exemplary anisotropic member includes an annular body configured to receive a bearing and to space the bearing a distance from a bore surface and is configured to impart anisotropic stiffness and damping terms to the 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 floating bearing, a semi-floating bearing or a ball bearing. Various exemplary members, bearings, housings, assemblies, etc., are disclosed.
Claims9
A rotating assembly for a turbocharger comprising:
- a center housing that comprises a through bore having a central axis;
- a fully-floating bearing positioned in the through bore;
- an anisotropic member that comprises a ring and a series of lobes arranged about the ring, the anisotropic member positioned in the through bore between the fully-floating bearing and a surface of the center housing wherein the surface of the center housing defines at least part of the through bore;
- and
- a shaft, rotatably supported in the center housing by the fully-floating bearing, the shaft connected at one end to a compressor wheel and at another end to a turbine wheel.
Dependencies are inferred from the claim text.