Patent ID: 7728475
Filing Date: 2010-06-01
Classification: F01D,F05D,H02K

Abstract:
1. A turboalternator system comprising: a turboalternator having a rotatable member operatively engaged to a bearing set, the rotatable member defining a first end, a second end and an axis of rotation; a radial support element; a contact structure engaged with the radial support element, wherein the turboalternator system is configured to be thermally adjustable such that in a first thermal condition the contact structure is at a first radial position with respect to the axis of rotation and contacts the rotatable member to provide support, and wherein the turboalternator system is further configured such that in a second thermal condition the contact structure is at a second radial position with respect to the axis of rotation that is spaced further from the axis of rotation than the first radial position; and a groove formed in the rotatable member, wherein in the first thermal condition the contact structure extends into the groove to restrict axial movement of the rotatable member.