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Rotary kinetic fluid motors or pumps June archived by invention type 06/08

20080152475 - Method for preventing backflow and forming a cooling layer in an airfoil: The present invention relates to a method for preventing backflow and forming a cooling layer in an airfoil by creating separation regions at a cooling slot inlet and flowing cooling fluid through the cooling slot.... Agent: General Electric Company

20080152476 - Pump wet end replacement method and impeller fixing mechanism: An impeller fixing mechanism is provided in a centrifugal pump for immobilizing the impeller, relative to the pump shaft and drive shaft of the pump, while effecting repairs to the pump, thereby eliminating much of the labor-intensive need for realigning the pump shaft and drive shaft and assuring accurate positioning... Agent: Morriss Obryant Compagni, P.c.

20080152477 - Bearing assembly and method of assembling the same: A rotor assembly for a gas turbine engine is provided. The rotor assembly includes a compressor rotor, a compressor stator coupled upstream from the compressor rotor, and a bearing assembly coupled between the compressor rotor and the compressor stator for supporting the compressor rotor. The bearing assembly includes a pair... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080152478 - Rotor mechanism of centrifugal compressor: A rotor mechanism of a centrifugal compressor connectable to a power output device and configured to block leakage of lubricants and to recycle lubricants to an oil sump is provided, which includes a rotary shaft with a rolling bearing and a screw nut, a bearing housing for receiving the rolling... Agent: Rabin & Berdo, Pc

20080152480 - Diagonal flow fan: The present invention aims at providing a diagonal flow fan or a silencer for the diagonal flow fan, which have the same outer shape as a suction port and are compact, and can also obtain an effective sound absorbing effect of a moderate frequency range. In the diagonal flow fan... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080152479 - Fan housing with noise-reducing structure: A fan housing with a noise-reducing structure includes a housing having a side wall. An air inlet is defined in the housing and an air outlet defined in the side wall of the housing. A plurality of supporting ribs are disposed in the air inlet and connected between inner and... Agent: Joe Mckinney Muncy

20080152481 - Pump with cutting impeller and pre-chopper: Pump having a cutting impeller (38), counter knives (40) associated therewith, and a pre-chopper (48) which is driven by a shaft portion (46) that projects axially from the cutting impeller (38), characterised in that the counter knives (40) carry a cutting edge (52) that extends in longitudinal direction of the... Agent: Richard M. Goldberg

20080152482 - Solar powered fan: A solar powered personal fan with a much broader spectrum of both portable and fixed operating applications whereas prior art is application specific. This device also provides a plurality of fixed and portable power supplies. A solar panel, rechargeable battery pack or home charger can all be used as a... Agent: Michael I Kroll

20080152483 - Bearing support: A compact bearing support operable for supporting and damping movement of a bearing assembly. The bearing support includes a plurality of flexible elements engaging the bearing assembly in a plurality of locations.... Agent: Krieg Devault LLP

20080152484 - Exhaust-gas turbine in an exhaust-gas turbocharger: In an exhaust-gas turbine of an exhaust-gas turbo-charger including a turbine wheel which is rotatably supported in a housing and to which exhaust gas can be supplied via an inlet channel and discharged out of the exhaust-gas turbine via an outlet duct, wherein a guide vane structure and an axial... Agent: Klaus J. Bach

20080152485 - Crowned rails for supporting arcuate components: A flange for supporting arcuate shrouds and shroud hangers comprising at least one arcuate rail, each arcuate rail having an inner radius, a first taper location, a first taper region, a second taper location, a second taper region, wherein the thickness of at least a portion of the first taper... Agent: General Electric Company

20080152486 - Base design of cooling structure: The present invention relates to a base design of cooling structure, which includes a base, and a shaft tube disposed on the base to support a spindle of an impeller to rotate therein. The base has at least a groove and the groove is located beyond an outer diameter; the... Agent: Bacon & Thomas, Pllc

20080152487 - Portable blower/vacuum and impeller for use with same: A blower/vacuum and an impeller for use with generating air flow in a blower/vacuum. The impeller may include a hub for mounting the impeller on a rotatable output shaft of a motor of the blower/vacuum. The impeller may further include a plurality of air-flow generating blades that define a particular... Agent: Mueting, Raasch & Gebhardt, P.a.

20080152488 - Cantilevered nozzle with crowned flange to improve outer band low cycle fatigue: A flange for supporting arcuate components comprising at least one arcuate rail, each arcuate rail having an inner radius, a first taper location, a first taper region, a second taper location, a second taper region, wherein the thickness of at least a portion of the first taper region is tapered... Agent: General Electric Company

20080152489 - Heat dissipating fan with wire retaining device: A heat dissipating fan with a wire retaining device includes a housing having a first end wall and a second end wall respectively on two ends thereof. A peripheral wall is formed between the first and second end walls. At least one of the first and second end walls includes... Agent: Joe Mckinney Muncy

20080152490 - Fan device: A fan device includes a fan frame and a fan blade wheel. The fan blade wheel is movably joined to the fan frame and has a hub with fan blades extending radially from the circumferential side of the hub. A guiding groove is provided at the circumferential side of the... Agent: G. Link Co., Ltd.

20080152491 - Coatings for use in fuel system components: A fuel pump assembly is provided. The assembly includes a first pump component having a first substrate and a first coating disposed on the first substrate. The assembly further includes at least one second pump component having a second substrate and a second coating disposed on the second substrate, wherein... Agent: Caterpillar/finnegan, Henderson, L.l.p.

20080145204 - Actuator: Actuators utilising shape memory alloy materials are known with regard to gas turbine engines. Such shape memory alloys have been used with respect to deformation provided in vanes and blades as well as nozzle elements in order that variations can be made in engine configuration dependent upon thermal cycling. Unfortunately,... Agent: Manelli Denison & Selter

20080145205 - Vacuum pump: A vacuum pump comprises a first pumping section 106, and, downstream therefrom, a second pumping section 108. The pump comprises a first pump inlet 120 through which fluid can enter the pump and pass through both the first and second pumping sections towards a pump outlet, and a second pump... Agent: Edwards Vacuum, Inc.

20080145206 - Passive guide vane control: A system for passively controlling a variable position guide vane in a turbo-machine. The system includes a shaft rotatable about an axis with an airfoil connected thereto. The shaft is biased toward a closed position, but will open in response to fluid flowing through a flowpath. The guide vane can... Agent: Krieg Devault LLP

20080145207 - Systems for preventing wear on turbine blade tip shrouds: A system in a turbine engine for preventing wear on a tip shroud of a turbine blade that includes a pocket formed in a contact surface of the tip shroud and a plug that fits within the pocket and has a durable outer surface. The durable outer surface may include... Agent: Ge Energy General Electric C/o Ernest G. Cusick

20080145208 - Bullnose seal turbine stage: A turbine stage includes a stator nozzle cooperating with a row of turbine blades. The nozzle includes a row of vanes mounted between inner and outer bands, with the inner band adjoining the blades at inner platforms thereof at a rotary seal. The inner band includes a stator bullnose at... Agent: Francis L. Conte, Esq.

20080145209 - Lubricant-tight vane rotary vacuum pump: A lubricant-tight vane rotary vacuum pump includes at least one pump stage (17, 18) having a safety valve (3) for controlling gas flow to the pump stage, a lubricant pump, a lubricant reservoir (30) at least partially surrounding the pump stage housing (10, 40), and a hydraulic conduit (31) connecting... Agent: Abelman, Frayne & Schwab

20080145210 - Airfoil leading edge end wall vortex reducing plasma: A leading edge vortex reducing system includes a gas turbine engine airfoil extending in a spanwise direction away from an end wall, one or more plasma generators extending in the spanwise direction through a fillet between the airfoil and the end wall in a leading edge region near and around... Agent: Steven J. Rosen Patent Attorney

20080145211 - Wall elements for gas turbine engine components: A wall structure for a gas turbine engine combustor has an inner wall and an outer wall defining a duct, the wall structure including an outer wall having a radial step and an inner wall overlapping the radial step, a duct being defined between the inner and outer walls for... Agent: Oliff & Berridge, Plc

20080145213 - Engine compressor assembly and method of operating the same: A compressor assembly for a gas turbine engine is provided. The compressor assembly includes a rotating impeller including an inlet, an outlet, and a body extending therebetween. The compressor assembly further includes a non-rotating impeller shroud. The body and the shroud define an impeller chamber including a radially inner surface... Agent: John S. Beulick Armstrong Teasdale LLP

20080145212 - Guide-case for water turbine: Guide case (24) for use in conjunction with a water turbine (20), with a helical top wall (35) of the annular chamber (27) extended downstream of the inner wall (39) of the inlet port (30). The extension is wetted on its downstream side by the top water entering the inlet... Agent: Anthony Asquith

20080145214 - Vacuum pump with a multi-sectional housing: A vacuum pump for producing low or high vacuum has a housing having a gas inlet and a gas outlet, a pumping system located in the housing, a motor for driving the pumping system, and a control electronics for controlling operation of the pump and likewise located in the housing,... Agent: David H.t. Wayment

20080145215 - Fan containment casings and methods of manufacture: A fan containment casing includes a core comprising a number of tows. The core has a central region and two end regions. The tows are grouped into a number of bands and form a number of filament-wound radially disposed layers. The bands of tows are interleaved as a number of... Agent: General Electric Company Global Research

20080145216 - Ovate band turbine stage: A turbine stage includes a stator nozzle having a row of vanes mounted between inner and outer bands. The inner band terminates in an ovate ledge converging aft from the vanes with radially outer and inner convex surfaces joined at a convex apex. The ovate ledge reduces aerodynamic losses at... Agent: Francis L. Conte, Esq.

20080145217 - Method for securing a stator assembly: An example exit guide vane for a gas turbine engine is mounted adjacent to a diffuser case defining an air flow path. A thrust balance seal is attached to the diffuser and the exit guide vane is mounted adjacent the diffuser case for guiding air flow into the air flow... Agent: Carlson, Gaskey & Olds/pratt & Whitney

20080145218 - Method and system for assembling a turbine engine: A method of assembling a turbine includes positioning a turbine nozzle against a forward inner nozzle support extending from a rotor assembly, and coupling a cover to the forward inner nozzle support. The method also includes inserting a tab that extends from the cover within at least one aperture defined... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080138189 - Fuel pump and fuel feed apparatus having the same: A fuel pump includes an impeller having first and second vane grooves each arranged along a rotative direction. The second vane grooves are located on a radially inner side of the first vane grooves. The fuel pump includes a pump case rotatably accommodating the impeller and having first and second... Agent: Nixon & Vanderhye, Pc

20080138190 - Waterproof/dustproof structure: A waterproof/dustproof structure includes a stationary member defining a liquid reservoir, a movable member being separated by a gap region from the stationary member and moving without touching the stationary member, and a liquid of high viscosity contained in the liquid reservoir for sealing an entrance area to the gap... Agent: Staas & Halsey LLP

20080138191 - Fan with impellers coupled in series and fan frame thereof: A fan includes a fan frame, a front impeller and a rear impeller. The fan frame has a frame body and a plurality of connecting elements. The front impeller has a first bushing disposed at the central portion of the frame body. Two ends of each connecting element are respectively... Agent: Birch Stewart Kolasch & Birch

20080138192 - Durable oil buffers with automatic reset: This Invention publicizes a kind of oil buffers with automatic reset, aiming to provide a kind of buffers with simple structure, long service life and function of automatic compensation of oil leakage. Its technical kernel includes a cylinder and a case around the outer surface of the Cylinder, where elastic... Agent: Global Ip Services

20080138193 - Pump and balancing cover thereof: A balancing cover connected with a rotor structure includes a plate, a plurality of blades and at least one balancing element. A central portion of the plate has an opening. Each blade has one end connected with the plate and mounted on a circumference of the opening, and the other... Agent: Birch Stewart Kolasch & Birch

20080138194 - Frame structure of a cooling fan, the cooling fan and heat generating device having the fan: A cooling fan, frame structure of the cooling fan, and a heat generating device comprising the fan are provided. The frame structure comprises a body with an air inlet and outlet. The body has at least one set of assembling holes which are spaced a certain distance apart from each... Agent: Grossman, Tucker, Perreault & Pfleger, Pllc

20080138195 - Variable coupling of turbofan engine spools via open differential gear set or simple planetary gear set for improved power extraction and engine operabiliby, with torque coupling for added flexability: A system for transferring mechanical torque variably between a plurality of rotating machines in a turbofan engine. Two devices are used, where the first device relies upon magnetic properties of a planetary magnetic gearbox to couple the magnetic machines. The second device is used to variably control the torque transfer... Agent: Mcnees Wallace & Nurick Llc

20080138196 - Exhaust-gas-turbine casing: The exhaust-gas turbine comprises a turbine casing, a shaft rotatably mounted in a bearing housing, a turbine wheel arranged on the shaft, and a heat-protection wall, the heat-protection wall defining with the turbine casing an inflow passage leading to the turbine wheel. The heat-protection wall has two seatings, the first... Agent: Buchanan, Ingersoll & Rooney Pc

20080138197 - Transition duct for a gas turbine engine: A transition duct for a gas turbine engine typically contains one or more non-turning fairings. These fairings disturb the air flow through the duct, leading to flow separation and aerodynamic inefficiency. The invention proposes non-axisymmetric perturbations in the duct end walls to minimise these undesirable aerodynamic effects. This permits the... Agent: Oliff & Berridge, Plc

20080138198 - Vane pump: A vane pump includes a rotor accommodated in a rotor chamber; a plurality of vanes attached to the rotor, each of the vanes having a leading end adapted to make sliding make a contact with an inner peripheral surface of the rotor chamber. Further, the vane pump includes working compartments... Agent: Bacon & Thomas, Pllc

20080138199 - Fan device capable of increasing air pressure and air supply: A fan device capable of increasing air pressure and air supply includes a frame, a first blade wheel, a second blade wheel and a guide flow part. The frame is a hollow casing to define a flow passage with a first air port and a second air port available for... Agent: G. Link Co., Ltd.

20080138200 - Centrifugal compressor: A centrifugal compressor for compressing gas has a casing, a rotary shaft, an impeller, a diffuser, a first scroll, a second scroll, a first passage, a second passage, and a switching member. The rotary shaft is supported by the casing. The impeller is rotatably fixed to the rotary shaft, and... Agent: Knoble Yoshida & Dunleavy Llc

20080138201 - Flow-guiding device and fan assembly: A flow-guiding device, connected between two fans disposed in series and rotating in the same rotation direction, includes a main frame and a plurality of flow-guiding pieces. The flow-guiding pieces are connected with the main frame. Each of the flow-guiding pieces is disposed corresponding to the stationary flow guiding device... Agent: Birch Stewart Kolasch & Birch

20080138202 - Arrangement for supporting a shaft of a vacuum pump and a vacuum pump with such an arrangement: An arrangement for supporting a shaft of a vacuum pump includes a first bearing for supporting the shaft at one of its end, a second bearing for supporting the shaft at another of its ends and formed as a rolling bearing, a holder for receiving the second bearing and including... Agent: Abelman, Frayne & Schwab

20080131258 - Method for optimizing the functioning of a plurality of compressor units and corresponding device: In a method for controlling a compression installation (1), the installation has at least two compressor units (i=1, , N) that can be separately turned on or off, a plurality of devices for modifying the output of the compressor units and a control device (10). Known methods and devices do... Agent: Baker Botts L.l.p. Patent Department

20080131260 - Method and system to facilitate cooling turbine engines: A method of assembling a gas turbine engine is provided. The method includes coupling at least one turbine nozzle segment within the gas turbine engine. The at least one turbine nozzle segment includes at least one airfoil vane extending between an inner band and an outer band that includes an... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131261 - Method and system to facilitate enhanced local cooling of turbine engines: A method of assembling a gas turbine engine is provided. The method includes coupling at least one turbine nozzle segment within the gas turbine engine. The at least one turbine nozzle segment includes at least one airfoil vane extending between an inner band and an outer band that includes an... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131262 - Methods and system for cooling integral turbine nozzle and shroud assemblies: A method for cooling a shroud segment of a gas turbine engine includes providing a turbine shroud assembly including a shroud segment having a leading edge defining a forward face. A turbine nozzle is coupled to the turbine shroud assembly such that a gap is defined between an aft face... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131259 - Methods and system for recuperated cooling of integral turbine nozzle and shroud assemblies: A method for cooling a shroud segment of a gas turbine engine is provided. The method includes providing a turbine shroud assembly including a shroud segment having an inner surface and a leading edge that is substantially perpendicular to the inner surface, and coupling a turbine nozzle to the turbine... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131263 - Methods and system for shielding cooling air to facilitate cooling integral turbine nozzle and shroud assemblies: A method for cooling a shroud segment of a gas turbine engine includes providing a turbine shroud assembly including a shroud segment having a leading edge defining a forward face. A turbine nozzle is coupled to the turbine shroud assembly such that a gap is defined between an aft face... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131265 - Downstream plasma shielded film cooling: An downstream plasma boundary layer shielding system includes film cooling apertures disposed through a wall having cold and hot surfaces and angled in a downstream direction from a cold surface of the wall to an outer hot surface of the wall. A plasma generator located downstream of the film cooling... Agent: Steven J. Rosen, Patent Attorney

20080131264 - Methods and system for cooling integral turbine shroud assemblies: A method for cooling a turbine shroud assembly includes providing a turbine shroud assembly including a shroud segment having a leading edge, a trailing edge and a midsection defined therebetween. A shroud support circumferentially spans and supports the shroud segment. The shroud support includes a forward hanger coupled to the... Agent: John S. Beulick (12729) C/o Armstrong Teasdale LLP

20080131266 - Bleed valve actuating system for a gas turbine engine: The bleed valve actuating system is for use in a gas turbine engine. The system comprises an actuator mounted adjacent the engine case and having a main actuation axis extending generally parallel to a surface of the engine case. A drive rod extends from the bleed valve to the actuator... Agent: Ogilvy Renault LLP (pwc)

20080131268 - Turbomachine with variable guide/stator blades: A turbomachine having at least one flow path, in which at least one stator blade 2 is arranged, which is variable around a rotational axis 1, and which comprises at its radial end areas one rotary base 3 each, wherein a portion of the rotary base 3 is non-circular, when... Agent: Timothy J. Klima Harbin King & Klima

20080131267 - Variable nozzle turbocharger: There is provided a turbocharger with a variable nozzle assembly having a plurality of cambered vanes positioned annularly around a turbine wheel, each vane (20) being pivotable around a pivot point (Pp) and being configured to have a leading edge (Ple) and a trailing edge (Pte) connected by an outer... Agent: Honeywell Turbo Technologies

20080131269 - Compliant plate seal with an annular ring for turbomachinery and methods of assembling the same: A method of assembling a turbomachine that includes a rotor and a stationary component is provided. The method includes coupling a housing to the stationary component using at least one biasing member, wherein the housing extending circumferentially about the rotor. The method also includes coupling at least one annular ring... Agent: John S. Beulick (17851)

20080131270 - Blade clearance system for a turbine engine: A blade gap control system configured to move a blade ring of a turbine engine relative to a blade assembly to reduce the gaps between the tips of the blades and the blade rings to increase the efficiency of the turbine engine is provided. The blade rings can be at... Agent: Siemens Corporation Intellectual Property Department

20080131271 - Advanced booster stator vane: A stator vane includes leading and trailing edges extending longitudinally between a root and a tip, the trailing edge having an exit swirl angle distribution such that the exit swirl angle has a maximum value at an intermediate radius location.... Agent: General Electric Company

20080131272 - Advanced booster system: A compression stage having a plurality of stator vanes and rotor blades coaxial with a longitudinal centerline axis, each stator vane having an exit swirl angle distribution such that the exit swirl angle has a maximum value at an intermediate radius location and each rotor blade having a blade leading... Agent: General Electric Company

20080131273 - Wind turbine for generation of electric power: A turbine includes a stack of substantially parallel disks, the rotation of which causes rotation of a shaft. The disks are separated by peripheral spacers, each peripheral spacer having the shape of an airfoil. Each peripheral spacer defines a chord which is angled radially inward, towards the axis of rotation... Agent: William H. Eilberg

20080131274 - Fan for air conditioner: Fan apparatus including a fan, a shaft coupled to the fan for transmission of driving force from a motor to the fan, a rotor bushing of an insulating material joined to a rear end portion of the shaft, a rotor joined to the rotor bushing for transmission of the driving... Agent: Ked & Associates, LLP

20080131275 - Blower system: The invention provides a blower system of a high performance, which is constructed to have stabilized characteristics, a high efficiency, a reduced thickness and a reduced noise. A blower system according to the invention includes an impeller, a motor for rotating the impeller and having a rotor and a stator,... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080131276 - Thermally decoupled mixer: The present invention provides a mixer assembly including a mixer and a plurality of scoops attached around a circumference of the mixer element via a combination of sliding brackets and fixed brackets. The sliding brackets provide attachment and allow relative movement between the plurality of scoops and the mixer element... Agent: Carlson, Gaskey & Olds/pratt & Whitney

20080131277 - Ball bearing with carbon-carbon cage for gas turbine engines: A ball bearing assembly for a gas turbine engine comprises an inner race that couples to a rotor shaft; an outer race that couples to a primary static structural support; a plurality of ball elements between the inner race and the outer race; and a ball cage that comprises a... Agent: Stephen George Mican