Patent ID: 7648278
Filing Date: 2010-01-19
Classification: F16C,F16F,H02K

Abstract:
1. An assembly for an electric machine having a rotor shaft, a bearing assembly and a support housing comprising: a spring member, said spring member having an annular structure that receives said bearing assembly; a supply of oil that forms a squeeze film damper for said rotor shaft, said supply of oil in contact with said annular structure; wherein said spring member further comprises a plurality of inner lobes and a plurality of outer lobes, said inner lobes integral to and positioned radially inward from said annular structure, said outer lobes integral to and positioned radially outward from said annular structure; and wherein a lobe axial width of said outer lobes is less than an axial length of said annular structure, said outer lobes positioned such that one outer lobe is at a first edge of said annular structure and another outer lobe is at a second edge of said annular structure, said outer lobes positioned axially in-line such that a channel is formed.