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| Number | Title | Issue Date |
| 7510374 | Non-concentric rings for reduced turbo-machinery operating clearances Rings having holes with a centerline offset from the centerline of the outer diameter, or other diameter piloting feature of the ring (i.e., non-concentric rings) may be used to align rotating components within their static components. Two non-concentric rings may b... | 03/31/2009 |
| 7503747 | Rotatable duct type shrouded rotating wing In a rotatable duct type shrouded rotating wing, permanent magnets are arranged in the outer periphery of a rotatable duct, rotor blades are connected to the inner periphery of the rotatable duct, the rotor blades having a rotatable support portion at about every 2.... | 03/17/2009 |
| 7484931 | Frame for an electrical fan A frame (10) for an electrical fan includes a bracket (20) and a bearing support (30) located at the center of the bracket. The bearing support includes a metal tube (50) and a plastic body (40) connecting with the metal tube. The ... | 02/03/2009 |
| 7484932 | Bore and shaft assembly An exemplary method includes positioning a plurality of seal rings on a shaft operably coupled to a turbine wheel and inserting the shaft into a bore via axial inward movement wherein during insertion, an outer seal ring contracts and then expands along a chamfer to... | 02/03/2009 |
| 7481620 | Wind power plant A wind power plant comprises an outside ring, an inside ring and roll bodies arranged between an inside jacket of the outside ring and an outside jacket of the inside ring for permitting twisting or rotation of the bearing rings against one another. One of the rings... | 01/27/2009 |
| 7442005 | Fan frame and heat dissipation fan incorporating the fan frame A heat dissipation fan includes a fan frame, a stator mounted to the frame, and a rotor rotatably disposed around the stator. The fan frame includes a bracket, a central tube for positioning the stator, and a supporting member. The supporting member is made of a mat... | 10/28/2008 |
| 7435052 | Shaft oil purge system A shaft oil purge system comprises an entrance seal, an exit seal and a buffer air flow. The entrance seal comprises a circumferential carbon seal running on an inner shaft and another carbon seal running on an outer shaft. The exit seal comprises a labyrinth seal p... | 10/14/2008 |
| 7402023 | Sanitary mixing assembly for vessels and tanks Component parts for a mixing assembly adapted to be used with clean in place techniques. The component parts may include an impeller assembly, an adjustable hub assembly, and a steady bearing assembly. The bearing assembly may include a supporting structure having a... | 07/22/2008 |
| 7384199 | Apparatus for centering rotor assembly bearings A bearing assembly for a gas turbine engine rotor includes, in an exemplary, an inner race, an outer race assembly, and a rolling element. The outer race assembly includes a body, a plurality of first springs attached to the body, and a plurality of second springs. ... | 06/10/2008 |
| 7377744 | Multistage centrifugal pump A multistage centrifugal pump in which each stage includes a one-piece or multi-piece housing and an impeller disposed therein. The pump stages are arranged between an inlet end member and an outlet end member and retained therebetween by connectors so as to be conn... | 05/27/2008 |
| 7364400 | Cooling fan having improved oil sealing structure A cooling fan includes a frame (30), a stator (20) and a rotor (10). The frame includes a base (32) having a central tube (34). A bearing (22) is received in the central tube. The rotor includes a hub (11) having a sh... | 04/29/2008 |
| 7364403 | Lubricating system for a fan A lubricating system for a fan (10) includes a lubricant storage space (17) formed at an end portion of the fan for receiving lubricant therein. A lubricant temporary retaining space (145) is defined at the other end portion of the fan for tempo... | 04/29/2008 |
| 7341380 | Installation layout for two coaxial shaft lines In an assembly with two concentric shafts, the internal shaft projecting beyond the external shaft, a seal support sleeve placed between the shafts has a conical shape and bears on a spacer mounted on the external shaft between an assembly nut of the forward end of ... | 03/11/2008 |
| 7334981 | Counter-rotating gas turbine engine and method of assembling same A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor that includes a first plurality of rows of turbine blades configured to rotate in a first rotational direction, providing a low-pressure turbine outer rotor that ... | 02/26/2008 |
| 7329088 | Pilot relief to reduce strut effects at pilot interface A turbine section of an engine that includes a shaft, a plurality of blades extending radially relative to the shaft, a bearing assembly, a flowpath housing, and a shroud is provided. The bearing assembly is mounted to the shaft adjacent to the plurality of blades. ... | 02/12/2008 |
| 7322181 | Turbofan engine with the fan fixed to a drive shaft supported by a first and a second bearing The turbojet includes a fixed structure, a fan rotor fixed to a drive shaft supported by a first bearing and a second bearing. The second bearing is mounted on the fixed structure through a bearing support part. The first bearing is mounted on the fixed structure of... | 01/29/2008 |
| 7322180 | Turbo-jet engine with fan integral with a drive shaft supported by first and second bearings A turbo-jet engine including a fixed structure and a fan rotor mounted on a drive shaft supported by a first bearing and a second bearing. The engine further comprises an axial retaining device configured to form an emergency bearing and to cooperate with the fixed ... | 01/29/2008 |
| 7316538 | Turbine engine with an uncoupling device, uncoupling device and fusible screw for the uncoupling device The turbine engine of the invention includes a rotor with at least one bearing, mounted on a bearing supporting part, said part being connected to the fixed structure by an uncoupling device, including at least one fusible screw passing through at least one bore, sa... | 01/08/2008 |
| 7296965 | Cryogenic bearings The bearing system includes a first component having a first substrate and a first coating. The first coating includes a DLC layer and a DLN layer between the DLC layer and the substrate. A second component is in sliding engagement with the first component. ... | 11/20/2007 |
| 7290769 | Sealing device with a brush gasket and flexible washer for a high-pressure turbine of a turbomachine A sealing device for sealing between two static portions of a turbomachine includes a brush gasket formed by a plurality of resilient bristles which are, at least in part, held in a housing. Each bristle has a main portion and a secondary portion interconnected by a... | 11/06/2007 |
| 7290987 | Impeller hub for torque converter A direct replacement impeller hub for the torque converter of an automatic transmission and a method of repairing an impeller assembly utilizing the replacement impeller hub to provide increased service longevity. In the present impeller hub the geometric roundness ... | 11/06/2007 |
| 7267528 | Plastic steel bearing for blade rotor shaft of cooling fan A bearing structure for the blade of cooling fan, comprises a hollow cylindrical body and an outward extended seat whose diameter is larger than the body. The seat has a recess at the bottom. The body forms a long cavity and upward flange. This bearing is placed in ... | 09/11/2007 |
| 7267523 | Composite shaft A turbine shaft may be used to remove a heat load from pliant bearings without requiring the use of a process fluid for cooling the turbine shaft. The turbine shaft comprises a heat conductive sleeve disposed between an outer surface of a tie rod shaft and an inner ... | 09/11/2007 |
| 7235907 | Axial magnetic bearing apparatus In axial magnetic bearing apparatus in which a rotary disc made of a magnetic material is fixedly attached to a rotating shaft, and electromagnets are disposed on opposite sides of the rotary disc so as to have suitable very small distances therefrom respectively, s... | 06/26/2007 |
| 7214030 | Guide system for the outer pivot of a variable stator vane, for a turbojet stator The system enables an increase in the guidance length of the outer pivot of the vane, so that the bushing can be extracted without needing to open the stator casing. It mainly includes a bushing placed inside a bossing of the stator, the length of which is greater t... | 05/08/2007 |
| 7198457 | Single-shaft multistage pump A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft on which impellers are disposed at multiple stages, bearings and for supporting the rotary shaft, and a balance device a... | 04/03/2007 |
| 7195446 | Counter-rotating turbine engine and method of assembling same A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor configured to rotate in a first direction, providing a low-pressure turbine outer rotor configured to rotate in a second direction that is opposite the first rota... | 03/27/2007 |
| 7186081 | Air turbine starter enhancement for clearance seal utilization An air turbine starter (ATS) configured to couple to a gearbox, the ATS including an output shaft having an outer peripheral surface, a gearbox section, and an ATS section, the gearbox section configured to be disposed within, and coupled to, the gearbox and the ATS... | 03/06/2007 |
| 7186073 | Counter-rotating gas turbine engine and method of assembling same A method for assembling a gas turbine engine includes providing a low-pressure turbine inner rotor that includes at least a first pair of adjacent rows of turbine blades that are configured to rotate in a first direction providing a low-pressure turbine outer rotor ... | 03/06/2007 |
| 7184520 | Component mounting system with stress compensation A component mounting system that includes a rotor stem, nut, and mechanical interface. The mechanical interface defines a shaped surface and is integral with the component. An axial opening in the component permits the component to be mounted on the rotor stem. The ... | 02/27/2007 |
| 7175385 | Mounting of the rotor of a gas turbine The rotor (5) of a gas turbine containing a compressor part (1) and a turbine part (3) is mounted in an axial thrust bearing (19) and in two radial journal bearings (16, 17). One of the bearings is a journal bearing (16) arr... | 02/13/2007 |
| 7168918 | High performance cooling fan A cooling fan comprises a rotor configured to generate airflow. The cooling fan further comprises an outlet guide vane adapted to receive the airflow generated by the rotor and to orient the airflow in a substantially axial direction relative to the rotor. The cooli... | 01/30/2007 |
| 7163368 | Hydrodynamic bearing runner for use in tilting pad thrust bearing assemblies for electric submersible pumps An electrical submersible pump runner having a core layer and a wear layer affixed to the core layer. One embodiment of the invention provides an electrical submersible pump that includes a motor section and a centrifugal pump section. A seal section and rotary gas ... | 01/16/2007 |
| 7160082 | Turbocharger with balancing features An exemplary thrust collar for a turbocharger includes a substantially annular body that includes an axis of rotation, a bore, opposing end surfaces where one of the end surfaces is substantially normal to the axis of rotation and capable of seating a back end of co... | 01/09/2007 |
| 7160081 | Vacuum pump A vacuum pump of the invention comprises, in a common pump body (100): molecular drag pump stages (5) in series with regenerative pump stages (9). The molecular drag pump stages (5) comprise a molecular drag rotor (5a) inclu... | 01/09/2007 |
| 7153093 | Vacuum pump A vacuum pump (10) comprises at least one rotor shaft (12) having a rotor section (14) with a rotor (16), a bearing section (18) with a bearing (20), and a shaft sealing system (22) that is axially situated between th... | 12/26/2006 |
| 7150148 | Thrust receiving structure of torque converter cover A front cover 5 of a converter cover 4 is formed with a punched hole 12, a thrust bearing 13 having the same outer shape as that of the punched hole 12 is fitted to the punched hole 12, a bearing housing 14 is fitted ... | 12/19/2006 |
| 7134836 | Turbocharger and method for its manufacture A housing unit for a turbocharger (1) comprises a rotor shaft (18) to mount a rotor on both its ends. Furthermore, there is a bearing housing part (4) for supporting the rotor shaft (18), and a turbine housing (2), an opening or re... | 11/14/2006 |
| 7128523 | Drainage pump and underwater bearing unit A drainage pump has a pump part in which blades mounted on a rotary shaft are arranged in a pump casing and an underwater bearing unit which uses pumped water mixed with hard particles as a lubricant and has a sliding bearing for journaling the rotary shaft. A porti... | 10/31/2006 |
| 7128529 | Perfected device for securing an engine shaft on a bearing support A device (D) is dedicated to securing a machine shaft (AIP) on a bearing support (SP). This device (D) comprises i) a locknut (19) provided with a stop, comprising a front face (23), a thread (20) intended to interact with a thread (7) of... | 10/31/2006 |