Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8172521 | Compressor clearance control system using turbine exhaust The present application provides a compressor clearance control system for a gas turbine engine. The gas turbine engine includes a turbine producing exhaust gases and a compressor with a casing and a number of rotor blades. The compressor clearance control system ma... | 05/08/2012 |
| 8011884 | Fan blade assembly for a gas turbine engine A small twin spool gas turbine engine with a forward end of the engine supported by bearings that are cooled by passing a cooling fluid such as cooling air bled off from the compressor with a liquid lubricant sprayed into the cooling air that is then passed through ... | 09/06/2011 |
| 7421842 | Turbine spring clip seal An improved turbine spring clip seal for directing gases to be mixed with fuel in a combustor basket. The turbine spring clip seal may include an inner housing and an outer housing. The inner housing or the outer housing, or both, may be shortened relative to conven... | 09/09/2008 |
| 7318707 | Support bearing for a vertically arranged centrifugal pump A vertical centrifugal pump having a support bearing arranged above the pump and including an axial bearing (22) and a radial bearing (23). A housing (24) encasing the support bearing (22, 23) is directly connected to the flow-carrying ho... | 01/15/2008 |
| 7278818 | Turbomachine for low temperature applications A turbomachine for low-temperature applications has a housing, a rotor shaft disposed in the housing, an impeller disposed on one shaft end of the rotor shaft, to which a cold gas is applied, and an electrical machine integrated into the housing. During operation of... | 10/09/2007 |
| 7265468 | Water repellent motor sleeve A high-speed universal motor running at over 10,000 or even over 20,000 rpm includes a non-rubbing water repellent sleeve that protects the bearings from moisture damage. Rather than having a sliding contact seal that can quickly wear out under such high speeds, the... | 09/04/2007 |
| 7252476 | Device for lubricating a component in a turbomachine A device for lubricating a component in a turbomachine, in particular a shaft bearing in a turbojet, the device comprising an annular support part defining a lubrication chamber around the component, an annular cover mounted in sealed manner on the part and includin... | 08/07/2007 |
| 7217081 | Cooling system for a seal for turbine vane shrouds A seal for sealing a seal groove in a shroud of a turbine vane. The seal may include a cooling system configured to pass cooling fluids through a cooling fluid supply port in a shroud, through a cooling system in which the cooling fluids contact the shroud and the s... | 05/15/2007 |
| 7128528 | Bearings for COrefrigerant compressor use, compressor using the same, and applications of the same The object of the present invention is to provide: high-reliability and long-life CO2 refrigerant compressor-use bearings that uses bearing materials high in wear resistance and in baking resistance, and; such a compressor, air conditioner, refrigerator, ... | 10/31/2006 |
| 7118324 | COcompressor A CO2 compressor for an air conditioner of a motor vehicle is suggested having a sealing device, assigned to the driveshaft of the CO2 compressor, which is implemented as a sliding ring. The CO2 compressor features a lubrication devi... | 10/10/2006 |
| 7118321 | Air cooled bearing An air cooled bearing comprising means for imparting a swirl component to the cooling air flowing toward the bearing. By imparting a swirl component to the cooling air the amount of work imparted on the cooling air by the rotating cage and rolling elements of the be... | 10/10/2006 |
| 7112033 | Hygienic mechanical seal flushing system for pure liquids in sanitary centrifugal pumps A sanitary centrifugal pump with a hygienic mechanical seal flushing system. The pump has a housing with a pumping chamber defined therein. An impeller is at least partially contained in the housing and is connected to a shaft for rotation. The rotation of the impel... | 09/26/2006 |
| 7104751 | Hot gas path assembly A hot gas path assembly, suitable for use in the hot gas path of a gas turbine, has as a hot gas duct wall an impact-cooled gas-impermeable element and a transpiration-cooled gas permeable element. The gas-permeable element is a run-on covering for the sealing tip, ... | 09/12/2006 |
| 7052230 | Pump assembly A pump assembly including a pump, a pump frame and a motor, the pump including a pumping member which is mounted in a pump housing, relative rotation of the pumping member with respect to the pump housing causing pumping of fluid, and the motor including a rotor and... | 05/30/2006 |
| 7048497 | Gas turbine stator A gas turbine stator including at least a first injector providing a passage for a main cooling air stream into a pressurized chamber. An evacuation mechanism discharges air coming from an internal labyrinth gland of a first cavity towards a lower-pressure second ca... | 05/23/2006 |
| 6948909 | Formed disk plate heat exchanger A compact rotary compressor unit within internal intercooling includes a rotary shaft (10) with at least one compressor wheel (14,16) mounted thereon for rotation therewith. The compressor wheel (14,16) has an inlet end (18) of relatively... | 09/27/2005 |
| 6918252 | Method of and apparatus for cooling a seal for machinery A method is provided for cooling a seal located in a wall of a chamber and through which a movable shaft passes, the seal being heated by hot pressurized vapor that leaks through the seal into the chamber and internal friction. The method comprises the steps of: pro... | 07/19/2005 |
| 6898935 | System and method of cooling steam turbines A system and method of cooling a steam turbine having internal moving components to a predetermined temperature by controlling a flow of nitrogen through the turbine, thus decreasing the downtime associated with maintaining the turbine. This provides a more efficien... | 05/31/2005 |
| 6892844 | Coolant pump for snowmobile engine A coolant pump for an engine includes a pump case main body and a pump drive shaft journaled therein. The pump drive shaft has a plurality of blades mounted thereon and is rotatable about a pump drive shaft axis. The coolant pump also includes a partition member and... | 05/17/2005 |
| 6779965 | Integrated axial flow pump An apparatus is given for feeding a lubricating and cooling material to a pump or other device having a rotating member that operates intermittently. In particular it deals with methods for delivering lubricant to the pump whenever, and only whenever, the pump is ru... | 08/24/2004 |
| 6776573 | Bladed rotor disc side-plate and corresponding arrangement A flange covering a disc of a turbine blade to allow ventilation. A diverted face of the disc is provided with a labyrinth seal with lickers to form a seal. Cutters of the lickers are inclined axially and staggered axially and radially, to off-set the center of grav... | 08/17/2004 |
| 6752590 | Water pump and impeller therefor A water pump (10) and impeller (30) for use in applications such as internal combustion engines. A plurality of holes (40, 44) are formed near the hub and periphery of the impeller (30) of the water pump to provide coolant flow through a ... | 06/22/2004 |
| 6705832 | Turbine A turbine includes a sealing element with a receiving area for sealing the guide blade vanes which are adjacent to each other in the peripheral direction of the turbine. The foot plates of the guide blade vanes extend into the receiving area. The edge area of the fo... | 03/16/2004 |
| 6688847 | Shaft structure and bearing structure for tail end of rotor of gas turbine A shaft structure of a rotor tail end of a gas turbine in which a steam passage for supplying and recovering a steam for cooling rotor blades of the gas turbine extends along a center axis of the rotor assembly of the gas turbine is provided, wherein a ce... | 02/10/2004 |
| 6558114 | Gas turbine with baffle reducing hot gas ingress into interstage disc cavity The subcavity between a stator seal assembly and the upstream rotor disc in the interstage disc cavity of a gas turbine is divided into a radially inward region and a radially outward region by an annular baffle that extends from the seal assembly partial... | 05/06/2003 |
| 6508619 | Expansion turbine for low-temperature applications An expansion turbine for low-temperature applications containing a turbine stage into which a cold gas is admitted. A turbine rotor is mounted on a shaft. Also provided is a roller support for the shaft being lubricated with a minimum amount of oil or gre... | 01/21/2003 |
| 6499944 | Turbo machine A heat shield of a turbo machine is provided with a microstructure. In a preferred embodiment, the microstructure element comprises a plateau, which is arranged on a rib in such a way that the structure has a "T"-shaped cross section. The ribs are prefera... | 12/31/2002 |
| 6474934 | Directed air flow coupling guard Method and apparatus are described for a guard for a rotating member. The guard comprises a shell surrounding the rotating member, and a plenum member concentrically spaced from an interior surface of the shell, the shell comprising an inlet for receiving... | 11/05/2002 |
| 6435816 | Gas injector system and its fabrication A gas injector system includes a plenum with a plenum opening in the wall of the plenum. An injector is positioned at a location overlying the plenum opening. The injector includes a injector block affixed to the exterior surface of the plenum wall, a joi... | 08/20/2002 |
| 6428270 | Stage 3 bucket shank bypass holes and related method In a multi-stage turbine wherein at least one turbine wheel supports a row of buckets for rotation, and wherein the turbine wheel is located axially between first and second annular fixed arrays of nozzles, a cooling air circuit for purging a wheelspace b... | 08/06/2002 |
| 6398484 | Centrifugal compressor and shaft seal A shaft seal system prevents working gas in a centrifugal compressor from leaking outside from the compressor. The shaft seal system is of an oil film seal type and located in the compressor in which a plurality of centrifugal impellers are fitted on a si... | 06/04/2002 |
| 6398518 | Method and apparatus for increasing the efficiency of a multi-stage compressor A multi-stage compressor, including a system for the injection of a cooling liquid into at least a portion of the compressor stages to increase the efficiency of the multi-stage compressor by reducing the temperature of the compressed gas produced in the ... | 06/04/2002 |
| 6379108 | Controlling a rabbet load and air/oil seal temperatures in a turbine During a standard fired shutdown of a turbine, a loaded rabbet joint between the fourth stage wheel and the aft shaft of the machine can become unloaded causing a gap to occur due to a thermal mismatch at the rabbet joint with the bearing blower turned on... | 04/30/2002 |
| 6358001 | Turbine frame assembly An annular turbine frame includes a first ring such as a radially outer casing disposed coaxially about an axial centerline axis and having a plurality of circumferentially spaced apart first ports. A plurality of circumferentially spaced apart hollow str... | 03/19/2002 |
| 6328541 | Thermal barrier and reactor coolant pump incorporating the same A thermal barrier for a nuclear reactor coolant pump includes a stack of pancake cooling coils encircling the pump shaft where it enters the pump chamber. This stack of coiling coils has an irregular peripheral surface formed by axially extending, diametr... | 12/11/2001 |
| 6296441 | Compressors An oil free high speed gas compressor driven by a high frequently electric motor with a soft magnetic armature which holds permanent magnets arranged peripherally and a centrifugal impeller overhung at one or at each end of the shaft of the armature of th... | 10/02/2001 |
| 6286303 | Impingement cooled foil bearings in a gas turbine engine A foil bearing assembly for use in a gas turbine engine is provided. The assembly includes an annular bearing carrier mounted to the housing of the engine. An annular foil carrier disposed within the bearing carrier and carrying a plurality of overlapping... | 09/11/2001 |
| 6273675 | Cooling architecture for flanges of a steam turbine casing A cooling architecture for flanges of a steam turbine casing, which effectively cools the flanges coupled by bolts to prevent the leakage of the steam caused by a decrease of the fastening force of the bolts. An upper casing 10 and a lower casing 11 are j... | 08/14/2001 |
| 6254333 | Method for forming a cooling passage and for cooling a turbine section of a rotary machine A method for cooling the trailing edge 126, 146 region of a stator vane platform 48, 54 and for forming a cooling passage 198, 214 using platform slots in the side of a stator vane is disclosed. Various steps are developed which provide for effective cool... | 07/03/2001 |
| 6238179 | Centrifugal compressor The object of the invention is to create a centrifugal compressor with a cooling appliance which is simpler but more effective. This is achieved by the feed device (27) for the gaseous cooling medium (31) opening into the separating gap upstream of the ma... | 05/29/2001 |
