Patent ID: 6953283
Filing Date: 2005-10-11
Classification: F16C

Abstract:
1. A foil bearing for supporting a rotating member that rotates about an axis, comprising: a stationary mount member spaced from the rotating member so that a gap is defined between the stationary mount member and the rotating member, the stationary mount member having a first surface facing the rotating member and a second surface opposite to the first surface; a moveable member disposed on a side of the stationary mount member opposite to the rotating member so as to be rotatable about the axis, the moveable member having a first surface facing the second surface of the stationary mount member; a first foil disposed in the gap between the rotating member and the stationary mount member to support the rotating member via a fluid film when the rotating member rotates, the first foil having a portion extending in a substantially circumferential direction; and an abutting member extending from the moveable member toward the first foil through a through-hole formed in the stationary mount member, the abutting member having one end in contact with the first surface of the moveable member and other end facing the circumferentially extending portion of the first foil, wherein a cam surface is formed on a part of the first surface of the moveable member with which the one end of the abutting member is in contact so that rotation of the moveable member around the axis can vary a length of the other end portion of the abutting member projecting out from the first surface of the stationary mount member toward the circumferentially extending portion of the first foil.