Abstract: A squeeze film damper bearing has an inner support ring capable of supporting a bearing portion; an outer support ring disposed on an outer periphery of the inner support ring; and a dissipation portion formed on at least one of the outer support ring and the inner support ring to dissipate vibration energy. A damper gap formed between an outer circumferential face of the inner support ring and an inner circumferential face of the outer support ring is filled with a viscous fluid.

Abstract: There is provided a fluid control device included in a rotary machine including a rotor, a case provided to surround an outer side of the rotor, and seal fins each provided to protrude from at least one of the rotor or the case, and configured to control a swirling flow flowing between the seal fin and the rotor or between the seal fin and the case. The fluid control device includes a first fluid control device configured to generate an induced flow in a backflow direction opposite to a flow direction of the swirling flow in an axial direction of the rotor.

Abstract: A squeeze film damper includes an inner member configured to support a bearing unit, an outer member provided circumferentially outward from the inner member to face the inner member with a gap extending in an circumferential direction interposed therebetween, a holed member provided in the gap and having a plurality of communication holes configured to allow a first region of the gap on an inward side in a radial direction and a second region of the gap on an outward side in the radial direction to communicate with each other, and an oil supply path configured to supply oil to the first region.

Abstract: A squeeze film damper bearing has an inner support ring capable of supporting a bearing portion; an outer support ring disposed on an outer periphery of the inner support ring; and a dissipation portion formed on at least one of the outer support ring and the inner support ring to dissipate vibration energy. A damper gap formed between an outer circumferential face of the inner support ring and an inner circumferential face of the outer support ring is filled with a viscous fluid.

Abstract: A squeeze film damper includes an inner member configured to support a bearing unit, an outer member provided circumferentially outward from the inner member to face the inner member with a gap extending in an circumferential direction interposed therebetween, a holed member provided in the gap and having a plurality of communication holes configured to allow a first region of the gap on an inward side in a radial direction and a second region of the gap on an outward side in the radial direction to communicate with each other, and an oil supply path configured to supply oil to the first region.