| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 384302000 | Distributed weight | 13 |
| 20140023301 | BEARING ASSEMBLIES, APPARATUSES, AND MOTOR ASSEMBLIES USING THE SAME - Various embodiments of the invention relate to bearing assemblies, apparatuses and motor assemblies that include geometric features configured to impart a selected amount of heat transfer and/or hydrodynamic film formation. In an embodiment, a bearing assembly may include a plurality of superhard bearing pads distributed circumferentially about an axis. At least some of the plurality of superhard bearing pads may include a plurality of sub-superhard bearing elements defining a bearing surface. At least some of the plurality of sub-superhard bearing elements may be spaced from one another by one or more voids to impart a selected amount of heat transfer and hydrodynamic film formation thereon during operation. The bearing assembly may also include a support ring that carries the plurality of superhard bearing pads. In addition, at least a portion of the sub-superhard bearing elements may extend beyond the support ring. | 01-23-2014 |
| 384303000 | For thrust bearing | 7 |
| 20140086516 | SLIDE BEARING AND METHOD TO PERFORM SERVICE AT THE SLIDING BEARING - A sliding bearing and a service method of performing a service of a sliding bearing are provided. The sliding bearing includes a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. In addition, the bearing includes an opening in the first bearing shell, wherein the opening is arranged such that the bearing pads are visible through the opening. | 03-27-2014 |
| 384306000 | Pivoted pad | 6 |
| 20120281938 | TILTING SUPERHARD BEARING ELEMENTS IN BEARING ASSEMBLIES, APPARATUSES, AND MOTOR ASSEMBLIES USING THE SAME - Embodiments relate to tilting superhard bearing element bearing assemblies and apparatuses. The disclosed assemblies/apparatuses may be employed in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment, a bearing assembly may include a support ring and a plurality of superhard bearing elements each of which is tilted and/or tiltably secured relative to the support ring and distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface and a base portion. The base portion of the at least one of the superhard bearing elements may include a tilting feature configured to allow the at least one of the superhard bearing elements to be tiltable about a tilt axis. The bearing assembly includes retaining features that secure the superhard bearing elements to the support ring. | 11-08-2012 |
| 20130182980 | BEARING ELEMENTS, BEARING ASSEMBLIES, AND RELATED METHODS - Bearing components, bearing assemblies and related methods are provided. In one embodiment, a bearing element includes a base layer and a polycrystalline diamond (PCD) layer comprising a plurality of PCD elements coupled with the base layer wherein each PCD element comprising a substrate and a diamond table. The plurality of PCD elements may be fit together to form a substantially continuous bearing surface. For example, the diamond tables may exhibit substantially square or rectangular geometries that are fit together to define the bearing surface. In other embodiments, the bearing elements may be spaced apart from one another. In other embodiments, the bearing element may include a single PCD element formed from a prefabricated PCD compact or cutting tool blank. Various bearing assemblies may incorporate such a bearing element including, for example, thrust bearings, journal bearings, and tilting pad bearing assemblies. | 07-18-2013 |
| 384307000 | With lubricating means | 2 |
| 20090310896 | TILTING PAD JOURNAL BEARING MOUNTED WITH STEPPED SEAL TOOTH AT OIL SUPPLY PART DISPOSED BETWEEN BEARING PADS - A tilting pad journal bearing mounted with a stepped seal tooth at an oil supply part disposed between bearing pads is disclosed. More particularly, the tilting pad journal bearing is formed by mounting a plurality of the bearing pads between an inner circumference of a bearing case and an outer circumference of a rotor, and mounting the seal tooth only to the oil supply part formed between the bearing pads to supply cooling lubricant while removing the seal tooth from a bearing pad part to thereby reduce a frictional torque between the bearing and the rotor and metal temperature, such that performance of the bearing pad can be guaranteed and the capability of the bearing can be improved by reducing loss of a driving force. | 12-17-2009 |
| 20100215299 | OILING NOZZLE FOR THRUST BEARING - Provided is an oiling nozzle for a thrust bearing, capable of improving the following capability of pads, and achieving a higher bearing pressure of the thrust bearing. An oiling nozzle which is for use in a thrust bearing and is respectively arranged between pads disposed in positions facing the thrust surface of a thrust collar that protrudes radially outward from a rotor shaft, along the circumferential direction, wherein the oiling nozzle comprises: a cylindrical stem; and a rectangular-shaped mainframe whose heightwise middle portions of opposite lateral sides are provided with convex parts each presenting a semicircular disk shape in a plane view, to be fitted into concave parts that are formed in lateral sides of the pads, and whose top portion located on the side opposite to the stem is formed with a plurality of nozzle holes for ejecting lubricating oil that has been supplied from the bottom of the stem toward a space between the thrust collar and the pads. | 08-26-2010 |
| 384308000 | Pad mounting structure | 2 |
| 20110019950 | BEARING DEVICE AND ROTARY MACHINE - The bearing device has a bearing housing which is supported by a bearing base mounted on a body of a rotary machine equipped with a rotating shaft and through which the rotating shaft penetrates at the center and a plurality of pads which are arranged inside the bearing housing so as to circumferentially surround the rotating shaft and rotatably support the rotating shaft. A contact surface between an outer circumference of the bearing housing and an inner circumference of the bearing base extends along the axial direction of the rotating shaft and forms a convex curved surface protruding outward, and the bearing housing is slidably supported by the bearing base via the contact surface of the convex curved surface. At least either the inner circumference of the bearing housing or the outer circumference of the pad forms a curved surface extending along the axial direction, and a distance between the inner circumference of the bearing housing and the outer circumference of the pad gradually increases from the center towards the ends along the axial direction. | 01-27-2011 |
| 20120224799 | BEARING ASSEMBLY FOR A WIND TURBINE - The present invention relates to a bearing device for a wind turbine, wherein the bearing arrangement has two bearing partners, which are pivoted arranged relative to each other over a common axis. A gliding pad acting in an axial direction is provided between the bearing partners. The object of the invention is to provide a bearing arrangement for a wind turbine, which among others avoids the disadvantages of the prior art. In particular, a maintenance-friendly and force flow-optimized arrangement of the gliding pads is to be enabled. The replaceability of the gliding pads is to be improved in a simple and cost-effective manner by disposing the individual gliding pads in pockets between the two bearing partners, wherein the pockets are provided in the material of the machine frame. Additionally, the option exists to use the bearing arrangement at the same time as an active brake. | 09-06-2012 |
| 384309000 | Pivoted pad | 5 |
| 384311000 | Lubricant supply structure | 3 |
| 20110069915 | BEARING DEVICE, OIL DISTRIBUTION MECHANISM AND METHOD - Method, pad and bearing device for oil redistribution. The bearing device includes a ring having at least one retaining head, at least one pad disposed inside the ring and having a bottom recess portion configured to receive the at least one retaining head, an oil distribution mechanism configured to inject oil at a leading edge of the at least one pad to flow towards a trailing edge of the at least one pad, and an oil redistribution mechanism on the at least one pad configured to redistribute the oil from the trailing edge of the at least one pad to the leading edge of the at least one pad. The leading edge is a first edge and the trailing edge is a second edge of the at least one pad encountered when traveling along a circumference of the ring in a direction of rotation of a rotor supported by the at least one pad. | 03-24-2011 |
| 20140205224 | Direct Lubrication Tilting Pad Journal Bearing - In a direct lubrication tilting pad journal bearing, a pad has an oil collection path in a groove shape. The oil collection path is formed so that an inlet may open in an opposite end surface to a rotation direction of a rotation shaft in the pad, an outlet may open in an inner circumferential surface of the pad, and the inlet and the outlet may continuously open. Further, a width dimension of the oil collection path is smaller than a width dimension of the pad, and a depth dimension from an outer circumferential surface of the rotation shaft to a bottom surface of the oil collection path is larger than a distance from the outer circumferential surface of the rotation shaft to an end of a nozzle. | 07-24-2014 |
| 20160069384 | RADIAL PLAIN BEARING - A radial plain bearing having a plurality of tilting pads for supporting a shaft, the tilting pads being movable relative to the bearing housing and being arranged circumferentially around and at a distance from the bearing axis, whereby the tilting pads have an outer radial plain bearing surface that can be supported on a supporting surface of a pressure block provided in the bearing housing; wherein the pressure block is movably provided in a passage extending radially through the bearing housing and can move radially without being supported on the bearing housing, the pressure block is secured against rotation in the circumferential direction of the passage by way of an anti-rotation element, and at least part or all of a radial outer surface of the pressure block is located on a common cylinder surface with an outer diameter of the bearing housing or with a bushing surrounding the bearing housing. | 03-10-2016 |
| 384312000 | Pad mounting structure | 2 |
| 20100177999 | ROTATION SHAFT SUPPORTING STRUCTURE WITH JOURNAL BEARING AND ASSEMBLING METHOD OF THE BEARING - A rotation shaft supporting structure with which the radial clearance between the bearing surface of an upper tilting pad on which self weight of the rotation shaft does not exert and rotating surface of the journal of the rotation shaft can be adjusted so that a high pressure oil film is formed in the clearance and carryover of lubrication oil from an upstream pad to its adjacent downstream pad is prevented. | 07-15-2010 |
| 20110069916 | BEARING DEVICE, RETENTION MECHANISM AND METHOD FOR RETAINING AT LEAST ONE PAD - Method, retention mechanism and bearing device for retaining at least one pad inside the bearing device. The bearing device includes a ring having at least a retaining head, at least one pad disposed inside the ring and having a bottom recess portion configured to receive the at least a retaining head, the at least one pad being configured to pivot on the at least a retaining head, and a retention mechanism configured to retain the at least one pad within a predetermined volume inside the ring. The retention mechanism is configured to apply a retaining force on the at least one pad, in addition to a force between the retaining head and the at least one pad, where the retaining force acts substantially along a radial direction of the ring, away from a center of the ring. | 03-24-2011 |
