A damper bearing includes: a bearing portion that supports a rotary shaft; and a tubular portion located around an outer circumference of the bearing portion, the tubular portion having a predetermined radial thickness and having an outer surface attachable to a structural member, wherein the bearing portion is configured as a hydrostatic bearing that supports the rotary shaft with a predetermined bearing clearance between the hydrostatic bearing and the rotary shaft, the tubular portion includes a plurality of planar slits located between the outer surface of the tubular portion and an inner surface of the tubular portion, each planar slit having a predetermined width, extending circumferentially, and further extending through an entire axial length of the tubular portion, the planar slits are arranged circumferentially at predetermined intervals in the tubular portion, each planar slit has an open end at the outer surface of the tubular portion, extends radially from the open end, and extends circumferentially in an arc to a predetermined point in a region between the outer surface and the inner surface, and the tubular portion includes a bearing fluid supply hole formed in a region where none of the planar slits is situated, the bearing fluid supply hole extending from the outer surface of the tubular portion to the bearing portion without passing through any of the planar slits. The damper bearing thus configured can be used as a bearing for a small machine and exhibit a damper function to damp vibration transmitted from the rotary shaft of the machine.

A bearing including a bearing pad and a housing is provided. The bearing pad has a thrust face for supporting a vibration along an axial direction of the bearing. Additionally, the housing is formed integrally using an additive manufacturing process and is attached to or formed integrally with the bearing pad. The housing defines a working gas delivery system for providing a flow of pressurized working gas to the thrust face of the bearing pad and a fluid damper cavity. The fluid damper cavity provides a dampening of the axial vibration supported by the thrust face of the bearing pad along the axial direction.

A rotary machine for an aeronautical device includes a thrust generator. The rotary machine additionally includes a rotary component rotatable with the thrust generator. Moreover, the rotary machine of the present disclosure includes a plurality of gas bearings, with the plurality of gas bearings substantially completely supporting the rotary component of the rotary machine.

A turbomachine includes a compressor section, a turbine section, and a rotary component. The rotary component is attached to and rotatable with a portion of at least one of the compressor section and the turbine section. The turbomachine additionally includes a seal having a gas bearing. The gas bearing defines an inner surface along a radial direction of the turbomachine, a high pressure end, and a low pressure end. The gas bearing supports the rotary component and also prevents an airflow from the high pressure end to the low pressure end between the rotary component and the inner surface of the gas bearing.

A bearing includes a bearing pad for supporting a rotary component and a housing attached to or formed integrally with the bearing pad. The housing includes a flexible column extending towards the bearing pad for providing the bearing pad with an airflow. The column supports the bearing pad from a location inward of an outer periphery of the bearing pad along an axial direction of the bearing. With such a configuration, a resistance of the bearing pad along a radial direction of the bearing is less at the outer periphery than a resistance of the bearing pad along the radial direction proximate the column.

The present disclosure is directed to a bearing assembly for a gas turbine engine. The bearing assembly includes a bearing housing and a bearing pad for supporting a rotary component of the gas turbine engine. The bearing pad includes at least one gas inlet and a plurality of gas outlets configured on an inner surface thereof. The gas inlet is in fluid communication with the plurality of gas outlets via a gas distribution labyrinth. Further, the gas distribution labyrinth includes a plurality of passageways configured to evenly distribute pressurized gas entering the gas inlet to an interface between the inner surface of the bearing pad and an outer diameter of the rotary component.

The present disclosure is directed to a gas-lubricated bearing assembly for a gas turbine engine and method of damping same. The bearing assembly includes a bearing pad for supporting a rotary component and a bearing housing attached to or formed integrally with the bearing pad. The bearing housing includes a first fluid damper cavity, a second fluid damper cavity in restrictive flow communication with the first fluid damper cavity via a restrictive channel configured as a clearance gap, and a damper fluid configured within the first and second fluid damper cavities. More specifically, the damper fluid of the present disclosure is configured to withstand the high temperature environment of the engine. Thus, the bearing housing is configured to transfer the damper fluid from the first fluid damper cavity to the second fluid damper cavity via the restrictive channel in response to a force acting on the bearing pad.

A throttle unit is equipped with a grooved block including at least one minute groove formed on a plane surface, and an opposite block having a plane surface which is opposite to the minute groove. The grooved block and the opposite block are detachably joined so as to be opposite to each other. A throttle fluid path is formed by the minute groove and the plane surface of the opposite block. At least one surface of each of the minute groove is constituted by a curved surface or an inclined surface that is inclined with respect to the plane surface of the grooved block.

The air bearing includes a main body part having a bearing surface opposed to a guide face, first and second flow path parts, which are provided in the main body part, for allowing compressed air supplied from outside to flow, an air supply hole, which is provided in the flow path part, for supplying compressed air to the guide face to form an air film between the bearing surface and the guide face, and a negative pressure generating part, which is provided in the second flow path part intersecting with the first flow path part, for generating a negative pressure for sucking air between the guide face and the main body part by increasing the flow velocity of the compressed air.

A bearing includes a bearing pad for supporting a rotary component and a housing attached to or formed integrally with the bearing pad. The housing defines a first fluid damper cavity positioned adjacent to the bearing pad and a second fluid damper cavity spaced from the first fluid damper cavity. The first and the second fluid damper cavities are in restrictive flow communication. The housing is configured to transfer a fluid from the first fluid damper cavity to the second fluid damper cavity in response to a force acting on the bearing pad to dampen a movement of the bearing pad.