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| Application No. | Application Title | Issue Date |
| 20120051952 | Charging device for an energy conversion device A charging device for an energy conversion device, e.g., a fuel cell, of a motor vehicle, has a rotor rotatably mounted on a housing of the charging device, the rotor having a shaft and at least two compressor wheels which are connected in rotationally fixed fashion to ... | 03/01/2012 |
| 20120051886 | LOCKED SPACER FOR A GAS TURBINE ENGINE SHAFT A shaft assembly that includes a locked spacer mounted to a shaft shoulder.... | 03/01/2012 |
| 20110217157 | CONTROL VALVE WITH RADIAL SEALS A control valve is provided that includes a valve body, a valve element, a first radial seal, and a second radial seal. The valve body forms an inlet, an outlet, and a fluid flow passage therebetween. The valve element is disposed at least partially within the valve bod... | 09/08/2011 |
| 20110129331 | SYSTEM FOR CONTROLLING THE THRUST AFFECTING A SHAFT An embodiment of the present invention provides a system for controlling the overall thrust extorted on a rotor. The system includes a chamber that encloses a portion of the rotor. A seal system may seal the chamber and the rotor. A fluid system may provide a pressurize... | 06/02/2011 |
| 20100329845 | TURBO-MACHINE HAVING BELLOWS UNIT FOR AUTOMATIC AXIAL THRUST CONTROL The turbo-machine of the present invention includes a volute casing, a rotating shaft, an impeller, seals, an axial thrust control member and a bellows unit. The volute casing defines therein a fluid passage. The rotating shaft is rotatably provided in the volute casing... | 12/30/2010 |
| 20100272555 | HYDRAULIC MACHINE, AN ENERGY CONVERSION INSTALLATION INCLUDING SUCH A MACHINE, AND THE USE OF A HYDROSTATIC LABYRINTH-BEARING IN SUCH A MACHINE This hydraulic machine (1) has a wheel (2) mounted to move in rotation relative to a stationary structure (9) and about a stationary axis of rotation (X2), the wheel (2) being designed to pass a forced flow (E) of water therethroug... | 10/28/2010 |
| 20100196139 | LEAKAGE FLOW MINIMIZATION SYSTEM FOR A TURBINE ENGINE A sealing system is applied to the interface between a stator and a rotor in a turbine engine to minimize fluid leakage across the interface. One interface can be defined between portions of neighboring rotor disks and a stator. The sealing system includes one or more r... | 08/05/2010 |
| 20100158668 | CENTRIFUGAL COMPRESSOR FORWARD THRUST AND TURBINE COOLING APPARATUS A gas turbine engine centrifugal compressor axial forward thrust apparatus bleeds impeller tip aft bleed flow from between an annular centrifugal compressor impeller of a high pressure rotor and a diffuser directly downstream of the impeller. The apparatus then uses the... | 06/24/2010 |
| 20100068031 | Multiple-stage centrifugal pump including a controlled leakage hydraulic balancing drum A multiple-stage centrifugal pump comprises a balancing drum coupled to the pump shaft, being axially locked, and turning in a pump body cavity with a minimum clearance; a rotary ring element mounted on the balancing drum and rotating therewith, but being able of axiall... | 03/18/2010 |
| 20100014957 | THRUST BALANCE OF ROTOR USING FUEL A method of at least partially balancing axial thrust loads and an engine in which the method is carried out is disclosed herein. The engine includes a combustion chamber and a fuel system operable to direct pressurized fuel to the combustion chamber. The engine also in... | 01/21/2010 |
| 20090311089 | TURBOMACHINE WITH A LONG LASTING POSITION-HOLDING SYSTEM A turbomachine arranged with a rotor and a stator, including radial positioning means ensuring that the rotor is radially position; and a contactless axial balancing device arranged on at least one bladed wheel for axially balancing the rotor at high speed. The turbomac... | 12/17/2009 |
| 20090185895 | Steam Turbine Disclosed is a steam turbine with a casing, wherein a turbine shaft having a thrust-compensating piston is rotatably mounted inside the casing and directed along a rotation axis, wherein a flow passage is formed between the casing and the turbine shaft. The turbine shaf... | 07/23/2009 |
| 20090155049 | ROTARY PUMP WITH EXCLUSIVELY HYDRODYNAMICALLY SUSPENDED IMPELLER A pump assembly 1, 33, 200 adapted for continuous flow pumping of blood. In a particular form the pump 1, 200 is a centrifugal pump wherein the impeller 100, 204 is entirely sealed within the pump housing 2, 201 and is exclusively hydrodynami... | 06/18/2009 |
| 20090092478 | SYSTEM AND METHOD FOR IMPROVING FLOW IN PUMPING SYSTEMS A technique is provided for improving the efficiency of a centrifugal pump. The centrifugal pump comprises diffusers that optimize the area schedule through the diffuser to diffuse the total fluid velocity and recover dynamic head while minimizing flow separation. Each ... | 04/09/2009 |
| 20080267766 | ROTOR SUPPORTS AND SYSTEMS A rotor support includes a first ring disposed around a first axis, a second ring disposed around the first axis downstream from the first ring, and a plurality of beams extending between the first and the second rings. Each beam is configured to provide an axial stiffn... | 10/30/2008 |
| 20080213085 | Steam Turbine and Method for Operation of a Steam Turbine Disclosed is a steam turbine comprising an exterior housing and an interior housing. The exterior housing and the interior housing are provided with a fresh steam supply duct. A rotor that encompasses several impeller blades and a thrust-compensating piston is rotably m... | 09/04/2008 |
| 20080187434 | DEVICE AND PROCEDURE FOR AXIAL THRUST COMPENSATION Compensation for the axial thrust in a pump, in particular a vertical pump, having at least one drive unit and at least one rotary pump unit. In operation of the pump a compensating piston which is axially non-displaceably connected to the shaft of the impeller wheel of... | 08/07/2008 |
| 20080095610 | Turbomachine A turbomachine has a housing and a rotor mounted radially and axially in the housing. The rotor has a shaft and at least one impeller attached to the shaft. Two tilt-segment bearings having tilt segments, which bearings act in opposite directions, are provided for axial... | 04/24/2008 |
| 20080089779 | Rotary Blood Pump Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing h... | 04/17/2008 |
| 20080031725 | Shrouded thrust bearings A rotary blood pump includes a casing defining a pumping chamber. The pumping chamber has a blood inlet and a tangential blood outlet. One or more motor stators are provided outside of the pumping chamber. A rotatable impeller is within the pumping chamber and is adapte... | 02/07/2008 |
| 20070147985 | TURBO COMPRESSOR A first centrifugal impeller and a second centrifugal impeller are arranged in such an orientation that back sides of the first centrifugal impeller and the second centrifugal impeller face to each other. Bearings are cylindrical roller bearings and a thrust bearing. Th... | 06/28/2007 |
| 20070140834 | Centrifugal turbo machine with axial thrust control member There is provided a centrifugal turbo machine comprising: a volute casing; a rotation axis coupled with the volute casing through a bearing; an impeller which is coupled to an end of the rotation axis and sucks fluid with a centrifugal force due to its rotation; and an ... | 06/21/2007 |
| 20070122265 | Rotor thrust balancing apparatus and method Apparatus and method of balancing thrust bearing load on a rotor thrust bearing employ a first thrust balance piston cavity for exerting an aft directed thrust balancing force and a second balance piston cavity for exerting an independently controlled forward directed t... | 05/31/2007 |
| 20070110561 | 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 sepa... | 05/17/2007 |
| 20070081891 | Cooling fan assembly A cooling fan assembly includes a cooling fan unit having a rotating shaft and a plurality of rotating vanes combined with the rotating shaft, and a flow control unit provided in a front of a ventilation direction of the cooling fan unit to control a flow of air to repr... | 04/12/2007 |
| 20060120854 | Gas turbine engine assembly and method of assembling same A method for assembling a gas turbine engine assembly, including a gas turbine engine, a power turbine coupled to the gas turbine engine, and a thrust bearing coupled to the power turbine. The method includes coupling a first annular portion having a first radius to the... | 06/08/2006 |
| 20060088407 | 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 compre... | 04/27/2006 |
| 20050129506 | 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) arrange... | 06/16/2005 |
| 20050129507 | Arrangement for bearing relief in a gas turbine In a gas turbine, the compressor load is reduced and the turbine load is increased for controlled bearing load reduction by forming a low-pressure chamber (8) that is shielded from the compressor air at the compressor (1) and a high-pressure chamber (9<... | 06/16/2005 |
| 20050089392 | Rotor and bearing system for a turbomachine A rotor and bearing system for a turbomachine. The turbomachine includes a drive shaft, an impeller positioned on the drive shaft, and a turbine positioned on the drive shaft proximate to the impeller. The bearing system comprises one gas journal bearing supporting the ... | 04/28/2005 |
