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| Number | Title | Issue Date |
| 8182153 | Bearing damper with spring seal A bearing damper includes: (a) an annular sleeve having spaced-apart grooves formed in a radially-facing surface therein; (b) an annular bearing race received in the sleeve; and (c) a resilient seal ring disposed in each of the grooves, wherein the seal rings cooper... | 05/22/2012 |
| 8167494 | Squeeze-film damper arrangement A squeeze-film damper arrangement comprising: concentric inner and outer components defining an annular gap there between for accommodating radial motion of the inner component within the outer component; and a fluid filling the annular gap around the outside of the... | 05/01/2012 |
| 7798720 | Squeeze film damper with highly variable support stiffness A squeeze film damper assembly having a variable stiffness and damping control. The squeeze film damper includes a damper chamber formed by two flexible bellows chambers of the sides. A first pressure source is applied to the damper chamber to regulate the damping. ... | 09/21/2010 |
| 7699526 | Support dampers for bearing assemblies and methods of manufacture A support damper is provided for a bearing assembly to improve the damping capabilities of an uncentered squeeze film damper and to provide a support structure stiffness to minimize rotor to structure unbalance response. In one embodiment, and by way of example only... | 04/20/2010 |
| 7665897 | Squeeze film damper using low pressure oil A squeeze film damper is provided that includes a fluid source, a shaft, a bearing assembly, a static bearing support, and a dam. The shaft includes openings formed therein and an annular channel in communication therewith that is configured to receive fluid from th... | 02/23/2010 |
| 7648277 | Device for supporting and guiding a rotating shaft A device for supporting and guiding a rotating shaft, in particular a rotor shaft of an airplane turboprop or turbojet, the device comprising an oil squeeze damper around each bearing of the shaft, said damper comprising an annular space surrounding the outer ring o... | 01/19/2010 |
| 7648278 | High speed aerospace generator resilient mount, combined centering spring and squeeze film damper A rotor mount assembly for an electrical machine, such as a high speed aerospace generator, comprises a spring having a simple annular structure together with an oil squeeze film damper (SFD). The spring is engineered to move the rotor critical speeds outside of the... | 01/19/2010 |
| 7625121 | Bearing assembly and centering support structure therefor The bearing assembly includes an annular bearing in which the shaft is disposed and a support structure for supporting the bearing. The bearing support is mounted about and radially supports the bearing. The bearing support at least in part defines a squeeze film an... | 12/01/2009 |
| 7524112 | Bearing support with double stiffener The present invention relates to a bearing support for a rotating engine such as a gas turbine engine, with a rotating shaft supported by at least one bearing and a frame, capable of running at least two different running speeds, characterised in that it comprises a... | 04/28/2009 |
| 7517152 | Squeeze film damper with variable support stiffness A squeeze film damper assembly having a variable stiffness and damping control. The squeeze film damper includes a damper chamber formed by two flexible bellows chambers of the sides. A first pressure source is applied to the damper chamber to regulate the damping. ... | 04/14/2009 |
| 7431504 | High temperature damper for a roller bearing A high temperature damper for a roller bearing having a long shelf life and capable of withstanding temperatures in a gas turbine engine shaft. The damper includes a damping chamber formed between a stator housing and the outer race of the bearing, and is filled wit... | 10/07/2008 |
| 7419304 | Multi-thickness film layer bearing cartridge and housing An exemplary housing for a rotor of a turbocharger includes a bore, defined at least in part by the housing; a pair of rotor limiting surfaces positioned at a first diameter, one rotor limiting surface positioned proximate to a turbine end of the housing and the oth... | 09/02/2008 |
| 7329048 | Self contained squeeze film damping system A fluid damping system for damping a shaft within a gas turbine engine component. The fluid damping system including a damping liquid and a pressurized gas in a closed self contained system. In one aspect the damping liquid is cooled by being disposed in a heat tran... | 02/12/2008 |
| 7261300 | Hydrodynamic foil face seal A foil thrust bearing forms the primary rotating interface for a film riding face seal. This face seal includes a spring system that will allow the entire assembly to translate axially relative to a static attachment. The complete assembly will form a hybrid foil/fi... | 08/28/2007 |
| 7258331 | Acoustically decoupled hydraulic bearing A hydraulic bearing includes a support spring made of elastomeric material and a hydraulic volume partitioned into a work chamber and a compensating chamber. A partition wall is disposed between the two chambers and includes a transfer channel. For acoustic decoupli... | 08/21/2007 |
| 7234350 | Unbalance measuring apparatus A bearing 41 of a support portion 4 for rotatably supporting a shaft 11 of a rotating body 10 to be measured with respect to the magnitude of unbalance thereof is formed into a hollow U-shape and has formed therein an injection port 41... | 06/26/2007 |
| 7214037 | Retention of ball bearing cartridge for turbomachinery An exemplary housing for a turbocharger includes a substantially cylindrical bore having a longitudinal axis, an inner diameter, a proximate end and a distal end; a counterbore positioned at the distal end, substantially centered on the longitudinal axis and having ... | 05/08/2007 |
| 7201379 | Seal assembly, cartridge, and method A seal assembly and cartridge for sealing a space between a rotating member and a stationary member in which a sleeve extends around the rotating member and with the inner surface of the sleeve being spaced from the outer surface of the rotating member to form a gap... | 04/10/2007 |
| 7198531 | Drive shaft supporting structure for jet propulsion watercraft A drive shaft supporting structure for a watercraft is provided that supports in a substantially watertight manner at least a portion of the driveshaft. The drive shaft extends from an engine, which is disposed within an inner section of a hull of the watercraft (e.... | 04/03/2007 |
| 7195439 | Tightening member A hydraulic nut having a first part connected around the first end of a fixing member the first part having an annular recess which opens to receive a second part forming an annular member which fits within the annular recess, wherein a pressurized medium chamber is... | 03/27/2007 |
| 7186026 | Foil hydrodynamic journal bearing and method of manufacturing the same A multi-lobe bearing is of simple construction such that a foil sheet in the form of a closed loop is arranged on a journal shaft by joining both ends of two sheets together, with a bearing gap therebetween and filling a viscoelastic body in an air gap between the f... | 03/06/2007 |
| 7182721 | Deflection controlled roll Deflection controlled roll that includes a rotating roll jacket, a rotationally fixed yoke arranged to axially pass through the roll jacket, and at least one hydrostatic support element arranged on the yoke to exert a supporting force on an inner side of the roll ja... | 02/27/2007 |
| 7182345 | Hydrodynamic brush seal A hybrid brush seal is provided having two bundles of axially spaced seal bristles each of which are mounted in a ring shape on a first machine component with bristle ends directed at a sealing surface of the second, rotating machine component. The bristle ends are ... | 02/27/2007 |
| 7174806 | Flexible bearing damping system, energy storage system using such a system, and a method related thereto A bearing damping system for damping vibrations and conducting heat from vibration-producing, heat-generating devices, an evacuated energy storage system including such a bearing damping system for damping vibrations produced by the rotating shaft and conducting hea... | 02/13/2007 |
| 7155903 | Buffer washer member and vibration and heat insulating board having the same A collar member including a main body part having a bolt hole for inserting a bolt and a flange part projecting horizontally to outside from the upper end of the main body part, a fitting member being a member for fitting with a vibration and heat insulating board m... | 01/02/2007 |
| 7140478 | Reversibly expandable energy absorbing assembly utilizing actively controlled and engineered materials for impact management and methods for operating the same Reversibly expandable energy absorbing assemblies that utilize an actively controlled and engineering material to reversibly change a shear stress or a flexural modulus property. The actively controlled and engineering materials include magnetorheological fluids, el... | 11/28/2006 |
| 7128061 | Supercharger A centrifugal supercharger is provided. One embodiment of the supercharger comprises a two-piece housing wherein a parting area is substantially aligned with a rotational axis of a drive- or impeller shaft. Another embodiment comprises a sleeve, or intermediate memb... | 10/31/2006 |
| 7125211 | Apparatus and method for damping vibration in a machine tool A machine tool for performing a machine tool function including components adapted to cooperate with each other to execute the machine tool function. The machine tool has a number of constituent parts and a number of sheets of damping material. Each component includ... | 10/24/2006 |
| 7124860 | Brake system for braking aircraft wheels The invention relates to a brake system for braking aircraft wheels, the brake system being of the type which, for each wheel, comprises a stator central portion coaxially surrounding a wheel axle on which a rotor annular portion is mounted to rotate, and a successi... | 10/24/2006 |
| 7120967 | Pet door hinge A pet door hinge adapted to accommodate potentially damaging forces. The hinge mechanism includes a shaft that is received by a shock-absorbing bearing. The bearing is received by a sleeve. The bearing rotates within the sleeve to allow pivoting of the flap. In the ... | 10/17/2006 |
| 7109619 | Damper support assembly for a supercritical drive shaft A support system, a bracket assembly, and a damping member for use in supporting a rotating shaft. A support system including a fixed bracket; a bracket assembly; and a bearing. The bracket assembly having a first damping member having a first fixed end and a second... | 09/19/2006 |
| 7104546 | Clip gasket termination A hollow oven gasket has a flexible tubular member with tubular wall and fasteners in the form of clips that are captured within and extend through the wall. First and second free ends of a length of the gasket material are brought together in a termination to form ... | 09/12/2006 |
| 7104693 | Multi-thickness film layer bearing cartridge and housing An exemplary squeeze film bearing cartridge for a turbocharger includes a center section, two outer sections having a first outer diameter and two intermediate sections having a second outer diameter, the intermediate sections positioned intermediate the center sect... | 09/12/2006 |
| 7100358 | Turbine exhaust case and method of making A structural turbine exhaust case of a gas turbine engine, comprises inner and outer case portions; a bearing housing connected to the inner case portion for supporting a main spool of the gas turbine engine; and a plurality of airfoils extending between the inner a... | 09/05/2006 |
| 7100910 | Fluid-filled vibration damping mount A fluid-filled vibration-damping mount of suspension type, wherein a lower open-end of a second mounting member is fluid-tightly closed by a first mounting member and a tapered elastic body interposed therebetween. An upper open-end portion of the cylindrical portio... | 09/05/2006 |
| 7066651 | Disc spring centering device for squeeze film dampers A damper film bearing assembly for supporting a rotatable shaft includes a bearing housing having a longitudinal opening passing therethrough for receiving the rotatable shaft. The bearing housing also has at least one radial recess formed in an outer surface thereo... | 06/27/2006 |
| 7063465 | Thrust bearing A thrust bearing 11 for use with a shaft 13 having a collar 15 mounted the shaft 13 and rotatable therewith has a base ring 17, a series of shoes 19 positioned on the base ring 17, and a compressible resilient spacing... | 06/20/2006 |
| 7055826 | Seal and bearing assembly A seal and bearing assembly for use in rotating machinery of the type having a rotor which turns within a stationary housing. The rotor and housing define a seal cavity therein in which the seal and bearing assembly is positioned. The assembly comprises a first bear... | 06/06/2006 |
| 7052004 | Hydraulically damping rubber bearing A hydraulically damping rubber mount is provided with a variable channel length. The mount channel length can be adapted to the later intended use with a simple design during the manufacture without changing the design. The hydraulic mount has an elastomeric damping... | 05/30/2006 |
| 7051617 | Methods and apparatus for tuned axial damping in rotating machinery with floating bearing cartridge An apparatus and method for selecting an appropriate viscous fluid for use in control moment gyroscopes, reaction wheels, momentum wheels and the like. Components such as the housing, the rotor, and the viscous fluid are modeled using a three-parameter isolator syst... | 05/30/2006 |
