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140results about How to "Prevent excess flow" patented technology
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Diode-Like Composite Semiconductor Device
ActiveUS20080191216A1Minimal current capacityPrevent excess flowSolid-state devicesElectronic switchingSchottky barrierCompressive strength
A silicon-made low-forward-voltage Schottky barrier diode is serially combined with a high-antivoltage-strength high-electron-mobility transistor made from a nitride semiconductor that is wider in bandgap than silicon. The Schottky barrier diode has its anode connected to the gate, and its cathode to the source, of the HEMT. This HEMT is normally on. The reverse voltage withstanding capability of the complete device depends upon that between the drain and gate of the HEMT.
Owner:SANKEN ELECTRIC CO LTD
Turbocharger
ActiveUS20110173975A1Improve engine torque/power output densityIncrease airflowPropellersInternal combustion piston enginesImpellerInjection port
In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger.
Owner:FORD GLOBAL TECH LLC +1
Golf ball cover stocks and golf balls
Owner:BRIDGESTONE SPORTS
Red-green-blue polymeric interference film
InactiveUS7138173B2Maximum color puritySharp color transitionMirrorsSynthetic resin layered productsPolarizerPolymer
Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.
Owner:3M INNOVATIVE PROPERTIES CO
Drive device
InactiveUS20050253465A1Prevent excess flowIncrease the areaAssociation with control/drive circuitsElectric propulsion mountingEngineeringRefrigerant
A drive unit comprises an electric motor, a drive unit casing 2 accommodating therein the electric motor, an inverter 3 that controls the electric motor, and a flow passage of a refrigerant that cools the inverter. The inverter defines a space R between it and a heat sink 5 integral with a substrate of the inverter, and is mounted to the drive unit casing, the space being communicated to the flow passage of the refrigerant. The heat sink comprises fins 56 that cross the space R, and abuts against the drive unit casing in a state of low thermal conduction. Thereby, the heat sink is effectively cooled by heat exchange with a cooling refrigerant in wide areas. Also, the fins contact with the drive unit casing in a state of low thermal conduction via a heat insulation material, etc., whereby direct heat conduction is avoided and efficient cooling is enabled while temperature gradient conformed to heat-resistant temperatures of the inverter and the electric motor is maintained.
Owner:AISIN AW CO LTD
Vehicle grill with moveable louvers
InactiveUS20110070817A1Reduce resistancePrevent excess flowAir-treating devicesCoolant flow controlEngineeringLouver
A grill for attachment to a front portion of a vehicle including a base frame structure with a mesh front structure secured thereto. The grill has at least one picture frame structure that is moveable with respect to the base frame structure. The grill also includes a plurality of louvers that are in communication with and moveable with respect to each of the base frame structure and the at least one picture frame structure. A motor unit is associated with the grill and is in communication with the at least one picture frame structure to effectuate movement thereof such that as the at least one picture frame structure moves, the plurality of louvers between an open position and a closed position, whereby openings between adjacent ones of the plurality of louvers are exposed or shut off.
Owner:LACKS ENTERPRISES
Turbocharger
ActiveUS8517664B2Increase airflowHigh densityPropellersInternal combustion piston enginesImpellerInjection port
In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger.
Owner:FORD GLOBAL TECH LLC +1
Hand held appliance
ActiveUS20130283630A1Promotes planar wave behaviourSmall diameterAir heatersHair dryingHand heldBiomedical engineering
A hand held appliance, such as a hairdryer, includes a body, a fluid flow path extending through the body in an axial direction from a first fluid inlet through which a first fluid flow enters the appliance to a first fluid outlet for emitting the first fluid flow from the appliance, a primary fluid flow path extending from a second fluid inlet through which a primary fluid flow enters the appliance to a second fluid outlet, a section of the primary fluid flow path extending through the body in the axial direction and surrounding the fluid flow path, and a heater located within the section of the primary fluid flow path for heating fluid passing through the primary fluid flow path, and wherein the heater has a length extending in the axial direction.
Owner:DYSON TECH LTD
Electro-optical devices using dynamic reconfiguration of effective electrode structures
ActiveUS20110216257A1Reduce aberrationImprove performance of lensStatic indicating devicesFixed grillesOptical propertyElectric field
Variable liquid crystal devices for controlling the propagation of light through a liquid crystal layer use a frequency dependent material to dynamically reconfigure effective electrode structures in the device. The frequency of a drive signal that generates an electric field in the device may be varied, and the frequency dependent material has different charge mobilities for the different frequencies. At a low charge mobility, the frequency dependent material has little effect on the existing electrode structures. However, at a high charge mobility, the frequency dependent material appears as an extension of the fixed electrodes, and may be used to change the effective electrode structure and, thereby, the spatial profile of the electric field. This, in turn, changes the optical properties of the liquid crystal, thus allowing the optical device to be frequency controllable.
Owner:POINT FINANCIAL
Turbine blade cooling system having multiple serpentine trailing edge cooling channels
InactiveUS7435053B2Improve efficiencyIncrease heatEngine manufactureEngine fuctionsTurbine bladeTrailing edge
A cooling system for a turbine blade of a turbine engine having multiple serpentine trailing edge cooling channels in parallel. The serpentine cooling channels are positioned proximate to a trailing edge of the turbine blade and facilitate increased heat removal with less cooling fluid flow, thereby resulting in increased cooling system efficiency.
Owner:SIEMENS ENERGY INC
Diode-like composite semiconductor device
ActiveUS7825435B2Minimal current capacityPrevent excess flowTransistorSolid-state devicesSchottky barrierDevice material
A silicon-made low-forward-voltage Schottky barrier diode is serially combined with a high-antivoltage-strength high-electron-mobility transistor made from a nitride semiconductor that is wider in bandgap than silicon. The Schottky barrier diode has its anode connected to the gate, and its cathode to the source, of the HEMT. This HEMT is normally on. The reverse voltage withstanding capability of the complete device depends upon that between the drain and gate of the HEMT.
Owner:SANKEN ELECTRIC CO LTD
Turbine blade cooling system having multiple serpentine trailing edge cooling channels
InactiveUS20060222493A1Improve efficiencyIncrease heatEngine manufactureEngine fuctionsTurbine bladeTrailing edge
A cooling system for a turbine blade of a turbine engine having multiple serpentine trailing edge cooling channels in parallel. The serpentine cooling channels are positioned proximate to a trailing edge of the turbine blade and facilitate increased heat removal with less cooling fluid flow, thereby resulting in increased cooling system efficiency.
Owner:SIEMENS ENERGY INC
Drive unit and inverter with cooling technique
InactiveUS7525224B2Prevent excess flowIncrease the areaPlural diverse prime-mover propulsion mountingMechanical energy handlingEngineeringRefrigerant
A drive unit comprises an electric motor, a drive unit casing 2 accommodating therein the electric motor, an inverter 3 that controls the electric motor, and a flow passage of a refrigerant that cools the inverter. The inverter defines a space R between it and a heat sink 5 integral with a substrate of the inverter, and is mounted to the drive unit casing, the space being communicated to the flow passage of the refrigerant. The heat sink comprises fins 56 that cross the space R, and abuts against the drive unit casing in a state of low thermal conduction. Thereby, the heat sink is effectively cooled by heat exchange with a cooling refrigerant in wide areas. Also, the fins contact with the drive unit casing in a state of low thermal conduction via a heat insulation material, etc., whereby direct heat conduction is avoided and efficient cooling is enabled while temperature gradient conformed to heat-resistant temperatures of the inverter and the electric motor is maintained.
Owner:AISIN AW CO LTD
Rotary Steerable Push-the-Bit Drilling Apparatus with Self-Cleaning Fluid Filter
ActiveUS20130118812A1Effectively self-cleaningConstant engagementDrill bitsDrilling rodsPistonDrill hole
A steerable drilling apparatus includes a control system inside a cylindrical housing connected to a drill bit having radially-extendable pistons. A fluid-metering assembly directs a piston-actuating fluid into fluid channels leading to respective pistons. The control system controls the fluid-metering assembly to allow fluid flow to selected pistons, causing the actuated pistons to temporarily extend in the opposite direction to a desired wellbore deviation, thereby deflecting the drill bit away from the borehole centerline. An upper member in the fluid-metering assembly can be moved to stabilize, steer, and change TFA within the drill bit. The control system and drill bit are connected so as to facilitate removal to change the drill bit's steering section and cutting structure configuration or gauge simultaneously. The apparatus may incorporate a fluid filter module mounted to the control system. The pistons may incorporate auxiliary cutting elements to provide near-bit reaming capability.
Owner:NAT OILWELL VARCO LP
Ring seal for a turbine engine
InactiveUS7871244B2Improve efficiencyImprove turbine efficiencyPropellersEngine manufactureCeramic coatingTurbine blade
Owner:SIEMENS ENERGY INC
Water cooled liquid fuel valve
A water cooled valve is provided in the form of a check valve, an air purge valve, a distributor valve, a combination air purge and distributor valve and the like for use in the liquid fuel system of a gas turbine. A movable valve member controls the flow of fluid through the valve's fuel circuit. A separate cooling circuit circulates cooling water through the valve near or alongside the valve member. The water is of a lower temperature than the high temperature liquid fuel, and thereby carries away heat transferred to the valve by the fuel. In one form, the cooling circuit is formed in part by a helical groove in the periphery the valve body housing the valve member. A sealed water jacket surrounds the valve body and has dedicated supply and return ports for coupling the valve to a water supply via water lines. The water ports are positioned tangentially to induce swirling flow inside the valve.
Owner:JANSENS AIRCRAFT SYST CONTROLS
Pressure casting of electric rotors
InactiveUS20100243197A1Sufficient pressureInhibited porositySynchronous motorsFoundry mouldsMolten statePorosity
A rotor for an induction motor and a method of preparing same. The method includes making a squirrel-cage rotor made up of a cage and a laminate stack by forming a mold around the stack, heating the stack and introducing a molten metal into the mold such that the molten metal substantially fills a space defined in the stack that corresponds to the cage. In one form, the space includes slots or related channels formed in the stack that upon filling with the molten metal become longitudinal bars that form electric current loops with end rings of the cage. By heating the stack and maintaining it at a temperature high enough to keep the molten metal in a substantially molten state at least long enough for it to flow through the slots of the stack, premature freezing of the molten metal is avoided. In addition, by providing low pressure to the molten metal in conjunction with the elevated temperature in the stack, flow is promoted to ensure a substantially porosity-free, fully dense squirrel-cage for the rotor.
Owner:GM GLOBAL TECH OPERATIONS LLC
Tabbed transfer fins for air-cooled heat exchanger
InactiveUS20060169019A1Increase heat transfer rateMinimizing creationSpacing meansMechanical apparatusEngineeringHeat exchanger
Heat transfer fins (110), and heat exchangers (100) incorporating such fins (110), enhancing heat transfer with acceptable pressure drop increase. The fins (110) include tabs or secondary fins bent upward and downward from the fin body at a selected bend angle. All or a majority of the tabs are aligned with a simple flow path or with local flow paths for cooling air adjacent the fins (110) to minimize turbulence and pressure drop. The tabs are planar and generally aligned parallel to the simple flow path or local flow paths and are arranged so as to serve as a plurality of sites for starting new boundary layers by offsetting the tabs such that downstream tabs are not shadowed by upstream tabs. The tabs have a height sufficiently large to extend the tabs out into boundary layers on the fin (110). The tabs provide more uniform flow over fins (110) and shrink wake size behind tubes (120).
Owner:ALLIANCE FOR SUSTAINABLE ENERGY
Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filter
ActiveUS8869916B2Increase minimum constant flowPrevent excess flowArtificial islandsDrill bitsControl systemEngineering
A steerable drilling apparatus includes a control system inside a cylindrical housing connected to a drill bit having radially-extendable pistons. A fluid-metering assembly directs a piston-actuating fluid into fluid channels leading to respective pistons. The control system controls the fluid-metering assembly to allow fluid flow to selected pistons, causing the actuated pistons to temporarily extend in the opposite direction to a desired wellbore deviation, thereby deflecting the drill bit away from the borehole centerline. An upper member in the fluid-metering assembly can be moved to stabilize, steer, and change TFA within the drill bit. The control system and drill bit are connected so as to facilitate removal to change the drill bit's steering section and cutting structure configuration or gauge simultaneously. The apparatus may incorporate a fluid filter module mounted to the control system. The pistons may incorporate auxiliary cutting elements to provide near-bit reaming capability.
Owner:NAT OILWELL VARCO LP
Debris filter with splitter box
ActiveUS20140097145A1Easy constructionIncrease shell rigidityWater/sewage treatmentMembrane filtersMechanical engineering
Owner:OVIVO INC
Debris filter with splitter bar
ActiveUS9561454B2Easy constructionSimple attachmentMembrane filtersStationary filtering element filtersMechanical engineeringEngineering
Owner:OVIVO INC
Heat exchanger systems & fabrication methods
InactiveUS20100044023A1Less materialLess laborMetal-working apparatusStationary conduit assembliesPlate heat exchangerSubject matter
A heat exchanger with multiple tubes whose ends are connected with connectors to provide a flow path for heat exchange fluid through the heat exchanger. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
Owner:ALLSTYLE COIL
Internal heat exchanger with calibrated coil-shaped fin tube
InactiveUS20070289723A1Easy and cost-effectivePrevent excess flowSpacing meansCompression machinesEngineeringAutomotive air conditioning
An internal heat exchanger unit for use in refrigerant circuits of automotive air conditioning systems. The internal heat exchanger includes a casing within which is located an accumulator, spaced thereapart so as to define a gap between the two components. Located within the gap is a coil-shaped fin tube. The fins of the fin tube include bend end portions at spaced apart locations about the fins, and the bent end portions defining an outer dimension of the fins that substantially corresponds to the gap width.
Owner:VISTEON GLOBAL TECH INC
Sliding bearing
InactiveUS20090238504A1Prevent rustImprove rust resistanceLinear bearingsShaftsAlloy coatingImpurity
A cylindrical sliding bearing having a cylindrical steel back metal, and a bearing alloy layer, serving as a sliding surface, on the inside of the steel back metal is provided. The cylindrical sliding bearing further have a coat layer of Bi or a Bi-based alloy formed on the outer back surface of the steel back metal. Preferably, the coat layer is made from the Bi-based alloy of 1 to 30 mass % of one or more kinds of Sn, Pb, In, Ag and Cu; and the balance being Bi and inevitable impurities.
Owner:DAIDO METAL CO LTD
Turbocharger
InactiveUS20140377051A1Improve engine torque/power output densityIncrease airflowPump componentsWind motor controlImpellerTurbocharger
Systems and methods are disclosed for a turbocharger compressor, the system comprising: an actuatable annular disk comprising choke slots therein; an outer annular disk comprising choke slots therein; and an actuator to rotate the actuatable annular disk relative to the outer annular disk to vary alignment of the choke slots of the actuatable annular disk and the outer annular disk. The actuator may be controlled by an engine controller responsive to operating conditions of the compressor and actuated to align choke slots. Alignment of the choke slots allows air to be drawn into the impeller effectively expanding the compressor flow capacity to prevent compressor choke.
Owner:FORD GLOBAL TECH LLC
Method and system for operating a heat pump of a vehicle
ActiveUS20170240024A1Reduce the possibilityReduce speed of compressorAir-treating devicesCompression machinesMobile vehicleOperation mode
Methods and systems for providing control of a heat pump of a motor vehicle are presented. In one operating mode, speed of a heat pump compressor is controlled responsive to an outlet pressure of the heat pump compressor. In a second operating mode, speed of the heat pump compressor is controlled responsive to a pressure ratio between an inlet and an outlet of the heat pump compressor.
Owner:FORD GLOBAL TECH LLC
Hydraulic System For A Transmission With Pump Inlet Diffuser
ActiveUS20100111718A1Reduce cavitationIncrease pumping speedPositive displacement pump componentsCartridge filtersFlow augmentationPressure regulator
A hydraulic system for a transmission has a diffuser housing with a fluid inlet passage that feeds one or more pump inlet ports, and a fluid return passage, such as to return fluid from a pressure regulator valve, that is in fluid communication with the fluid inlet passage. The hydraulic system also has a filter housing with a filter outlet portion that is in fluid communication with the fluid inlet passage upstream of the pump inlet port(s). The fluid return passage is downstream of the filter outlet portion. Thus, flow through the fluid return passage can create suction, causing increased flow through the filter outlet portion, such as from a fluid sump. Specifically, the diffuser housing is configured so that the fluid inlet passage has a converging portion downstream of the filter outlet portion and a diverging portion downstream of the converging portion.
Owner:GM GLOBAL TECH OPERATIONS LLC
Valve with swirling coolant
Owner:JANSENS AIRCRAFT SYST CONTROLS
Variable valve timing for cylinder deactivation
ActiveUS20140032083A1Improve engine performancePositive improvementAnalogue computers for vehiclesElectrical controlVariable valve timingCylinder Valve
Methods and systems are provided for adjusting cylinder valve timings to enable a group of cylinders to operate and combust while another group of cylinders on a second are selectively deactivated. Valve timing may be adjusted to allow flow of air through the inactive cylinders to be reduced, lowering catalyst regeneration requirements upon reactivation. The valve timing may alternatively be adjusted to enable exhaust gas to be recirculated to the active cylinders via the inactive cylinders, providing cooled EGR benefits.
Owner:FORD GLOBAL TECH LLC
Capsule, system and method for preparing a beverage
InactiveUS20160068336A1Prevent excess flowBetter controllableReady-for-oven doughsBeverage vesselsGround coffeeBiomedical engineering
Capsule (2) for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, for instance roast and ground coffee, comprising a substantially rigid circumferential wall (14), a bottom (16) closing the circumferential wall at a first end (18), and a lid (20, 20′, 20″, 20′″) closing the circumferential wall at a second, open, end (22), wherein the circumferential wall, the bottom and the lid enclose an inner space (23) comprising the extractable product, wherein the lid (20, 20′, 20″, 20′″) comprises a flexible foil (24) with a plurality of exit openings (25) for draining of the prepared beverage, wherein inside the capsule (2) between the extractable product and the lid (20, 20′, 20″, 20′″) a substantially sheet shaped filter layer (26) is provided.
Owner:KONINK DOUWE EGBERTS BV
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