Floating-sleeve hybrid fluid bearing
AssigneeIndustry-University Cooperation Foundation Hanyang University Erica Campus
InventorsKeun Ryu, Hyun Sung Jung
Life of this patent
Estimating the term…
Abstract
Provided is a floating-sleeve hybrid fluid bearing. The floating-sleeve hybrid fluid bearing may comprise: a bearing housing which is mounted by ring-coupling to the outer circumferential surface of a rotary shaft; and a floating sleeve which is mounted between the rotary shaft and the bearing housing so that there is a gap between the floating sleeve and the rotary shaft, and between the floating sleeve and the bearing housing, wherein the rotation of the floating sleeve is constrained by the bearing housing during the rotation of the rotary shaft, and one side of the floating sleeve in the circumferential direction is open in the radial direction.
Claims9
A floating-sleeve hybrid fluid bearing comprising:
- a bearing housing mounted on an outer diameter surface of a rotary shaft via a floating sleeve,
- wherein the floating sleeve is mounted between the rotary shaft and the bearing housing such that a first gap is formed between the rotary shaft and the bearing housing, and rotation of the floating sleeve is constrained by the bearing housing during the rotation of the rotary shaft, and
- wherein the floating sleeve includes two opposed circumferential ends that define an opening in the floating sleeve;
- and
- a squeeze film damper provided in a second gap between the bearing housing and the floating sleeve, wherein the squeeze film damper is provided as a fluid lubricating layer having at least one layer.
A floating-sleeve hybrid fluid bearing comprising:
- a bearing housing mounted on an outer diameter surface of a rotary shaft via a floating sleeve,
- wherein the floating sleeve is mounted between the rotary shaft and the bearing housing such that a first gap is formed between the rotary shaft and the bearing housing, and rotation of the floating sleeve is constrained by the bearing housing during the rotation of the rotary shaft, and
- wherein the floating sleeve includes two opposed circumferential ends that define an opening in the floating sleeve,
- wherein the bearing housing includes:
- a housing body having a center opened in an axial direction to allow the rotary shaft to be inserted;
- and
- at least one guide groove formed on an inner diameter surface of the housing body and extending in a depth direction from the inner diameter surface of the housing body, and variably coming into contact with an outer side of the floating sleeve according to a rotational direction of the rotary shaft,
- wherein the floating sleeve further includes:
- a sleeve body having a center opened in the axial direction to allow the rotary shaft to be inserted, and having an outer diameter smaller than an inner diameter of the housing body, wherein the opening is formed to communicate between an inside and an outside of the sleeve body in a radial direction;
- and
- at least one protrusion formed on the outer diameter surface of the sleeve body, protruding radially outward from the outer diameter surface of the sleeve body, and accommodated in the at least one guide groove, and
- wherein the floating sleeve further includes:
- a pocket formed in the depth direction, at a position corresponding to the at least one protrusion, in an inner diameter surface of the sleeve body;
- a fitting mount hole provided on one side in the axial direction of the at least one protrusion, and mounted therein with a fitting for connection with an external fluid supply device;
- a flow path formed inside the sleeve body and the at least one protrusion to communicate the fitting mount hole with the pocket;
- and
- an orifice formed at an end of the flow path positioned on the pocket.
Dependencies are inferred from the claim text.