| 主权项 |
1. A radial foil bearing for enclosing and supporting a rotary shaft, the radial foil bearing comprising:
a cylindrical top foil disposed so as to face the rotary shaft; a back foil disposed on a radially outer side of the top foil; and a cylindrical bearing housing accommodating the top foil and the back foil, wherein the back foil is formed in a cylindrical shape using at least one back foil piece, and wherein the back foil piece includes peak portions and valley portions which are alternately formed in a circumferential direction of the top foil and is fixed to the bearing housing at an intermediate portion between both end portions in a circumferential direction of the back foil piece.
|
