Buckling wave disk

Abstract

A power conversion device has a buckled wave disk that has an axis and is radially compressed between a hub and a wave ring. The buckled wave disk is buckled in the radial direction to form circumferential waves which are displaced in the axial direction and extending around the buckled wave disk with lines formed of inflection points of the circumferential waves extending between the hub and wave ring. The wave ring is outwardly radially displaced at nodes corresponding to lines formed of inflection points of the circumferential waves. A wave propagation actuator cooperates with the buckled wave disk for driving a wave and the lines formed of inflection points of the circumferential waves around the buckled wave disk. An outer ring surrounds the wave ring, the outer ring being driven by or driving the wave ring at the nodes. A method of making a wave disk is provided.

1 - 18 . (canceled) 
     
     
         19 . A manufacturing process for a buckling wave disk comprising providing a disk having sections toward the ID and OD of the disk that are circular and planar and having a circular section larger than the ID and smaller than the OD that is rotationally symmetric and without a wave shape before forming, and plastically compressing the disk between forming members to circumferentially lengthen the material of the disk between the section toward the ID and the section toward the OD beyond the elastic limit of the disk so that a permanent circumferential wave is formed in the disk while the disk is in contact with the forming members and/or after the disk is removed from the forming members. 
     
     
         20 . A manufacturing process for a buckling wave disk comprising providing a disk having sections toward the ID and OD of the disk that are circular and planar and having a circular section larger than the ID and smaller than the OD that is rotationally symmetric and without a wave shape before forming, and plastically elongating the disk in the circumferential direction so that a permanent circumferential wave is formed in the disk while the disk is in contact with the forming members and/or after the disk is removed from the forming members. 
     
     
         21 . A manufacturing molding process for a buckling wave disk comprising providing a disk having sections toward the ID and OD of the disk that are circular and planar and having a circular section larger than the ID and smaller than the OD that is rotationally symmetric and without a wave shape before thermal injection molding, and a permanent and rotationally not fixed circumferential wave is formed in the disk while the disk is removed from the forming members due to differential thermal contraction of the ID of the disk relative to the midline circumference.