71results about How to "Leakage" patented technology

Aspects of the invention relate to a system for supporting the exit end of a transition duct. The system includes a plurality of support ring segments that collectively form an annular support ring assembly. Each support ring segment can have an outer span and an inner span that are joined by a central column. Lateral openings can be defined on each side of the central column. The lateral openings of two adjacent support ring segments can cooperate to form an opening. An outlet region of a transition duct can be inserted into a respective opening and engage seals provided along the opening. The interface of adjacent ring segments occurs along an imaginary line across the outlet of the common transition duct body. Each support ring segment can be attached to the transition duct as well as to a fixed portion of the engine such as the turbine stationary support structure.

A turbine ring assembly for a gas turbine, the assembly comprising a complete ring (10) forming a single piece of ceramic matrix composite material (CMC), a metal structure for supporting the CMC ring having metal annular supports (20, 30) between which the CMC ring is placed while allowing differential expansion at least in a radial direction between the CMC ring and the annular supports, means (40-42) for centering the CMC ring, and at least one element for preventing turning of the CMC ring about its axis.

A capacity control valve for a variable-capacity compressor such as used in an air-conditioning system in a motor vehicle is provided, wherein foreign matter is prevented from being caught in the sliding parts and leakage on the sliding parts is prevented from occurring by configuring the capacity control valve so that there are no sliding parts between the valving element and the housing (valve body).

A radar level gauge system for determining a filling level of a product contained in a tank, comprising: a transceiver for generating, transmitting and receiving frequency-modulated electromagnetic signals; a transmitting propagating device electrically connected to the transceiver and arranged to propagate transmitted electromagnetic signals towards a surface of the product contained in the tank; and a receiving propagating device electrically connected to the transceiver and arranged to return echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signals, including a surface echo signal resulting from reflection at the surface, back to the transceiver. A signal isolation between the transmitting propagating device and the receiving propagating device is at least 30 dB, and the transceiver comprises: a signal generator for generating a frequency-modulated signal having a predetermined center frequency; a transmitter branch connecting an output of the signal generator with the transmitting propagating device via a first frequency converter for converting the frequency of the frequency-modulated signal to provide the transmitted electromagnetic signal; a receiver branch connected to the receiving propagating device for receiving the surface echo signal; and a mixer having a first input connected to the signal generator via a second frequency converter for converting the frequency of the frequency-modulated signal and a second input connected to the receiver branch, for forming an intermediate frequency signal indicative of a phase difference between the transmitted electromagnetic signal and the surface echo signal. The radar level gauge system further comprising processing circuitry connected to the transceiver for determining the filling level based on the intermediate frequency signal.

A method of manufacturing a liquid ejecting head and a supply member having a plurality of liquid supply passages is provided. The supply member includes first and second supply members in which liquid supply passages are provided and filters provided between the first supply member and the second supply member. The method includes: preparing a connected filter formed of a plurality of filter element portions corresponding to the plurality of liquid supply passages and a connecting portion that connects the plurality of filter element portions; in a state where the filter element portions of the connected filter are held between the first supply member and the second supply member, charging molten resin from a position corresponding to the connecting portion of the connected filter to separate the connecting portion; and, during the charging, molding.

A tip turbine engine comprises a fan-turbine rotor assembly that includes one or more turbine ring rotors. Each turbine ring is assembled from a multitude of turbine blade clusters. Assembly of a multitude of turbine blade clusters to a diffuser includes axial installation and radial rotation. The clusters are axially installed, then rotated toward a radial stop in a direction which will maintain each cluster against the radial stop during operation of the fan-turbine rotor assembly. A multitude of turbine rotor ring stages may also be locked together to future increase the rigidity of the turbine

Disclosed is a facing-targets-type sputtering apparatus including a sputtering unit including a pair of facing targets which are disposed a predetermined distance away from each other, and permanent magnets serving as magnetic-field generation means which are disposed around each of the facing targets, the permanent magnets being provided so as to generate a facing-mode magnetic field and a magnetron-mode magnetic field, the facing-mode magnetic field extending in the direction perpendicular to the facing targets in such a manner as to surround a confinement space provided between the targets, and the magnetron-mode magnetic field extending from the vicinity of a peripheral edge portion of each of the targets to a center portion thereof, thereby confining plasma within the confinement space by means of these magnetic fields for forming a thin film on a substrate disposed beside the confinement space, which apparatus further includes magnetic-field regulation means for regulating the magnetron-mode magnetic field. The magnetic-field regulation means is formed of, for example, a permanent magnet, and is provided on the back side of each of the targets.

A method of manufacturing a semiconductor device having an isolation region, a trench formed on a semiconductor substrate and an insulating film buried within the trench; includes: forming a gate electrode in an active region adjacent to the isolation region; applying an ion implantation onto the substrate to form a first dopant diffusion region; forming a first and a second insulating film, on the entire surface of the substrate; performing an etch back, to form a first sidewall of the second insulating film on a lateral face of the gate electrode; etching the first insulating film to form a second sidewall of the first insulating film on the lateral face of; making another ion implantation to form a second dopant diffusion region; forming an interlayer insulating film; and forming a contact hole to reach the second dopant diffusion region.

A fan-turbine rotor assembly for a tip turbine engine includes an outer periphery scalloped by a multitude of elongated openings which define an inducer receipt section to receive an inducer section and a hollow fan blade section. Each fan blade section includes a turbine section which extends from a diffuser section.

The invention relates to the field of buildings and in particular discloses an automatic proportioning type cement hopper. The automatic proportioning type cement hopper comprises a rack, a stirring mechanism, a feeding hopper and a proportioning mechanism, wherein the feeding holler comprises a feeding part and a discharging pipe; a sealing plate is hinged to the upper part of the discharging pipe; a pull rope is fixed on the sealing plate; the stirring mechanism comprises a motor, a stirring shaft and stirring blades; one end of the stirring shaft and the stirring blades are arranged in thefeeding part; the proportioning mechanism comprises an extension spring, a separating plate, a hydraulic jacking device, an electromagnet, a proportioning box and a baffle plate; the pull rope is fixedly arranged on the baffle plate; the proportioning box is divided into a proportioning cabin and a feeding cabin by the separating plate; two ends of the extension spring are fixedly arranged on thebaffle plate and the separating plate respectively; the bottom of the proportioning box is an inclined surface; the electromagnet can adsorb the baffle plate; a switch is arranged on an inner wall ofthe proportioning box; the separating plate can press the switch; an airbag is fixedly arranged at the bottom of the proportioning cabin; an air inlet is formed in the airbag; a feeding opening is formed in a lateral wall of the feeding cabin. By adopting the automatic proportioning type cement hopper provided by the invention, the quantity of entered raw materials can be controlled.

A hose repair kit includes a retaining sleeve having a first opening to receive an end of a hose. There is a swivel coupling inserted into a second end of the hose retaining sleeve to engage with the hose. The swivel coupling includes a first annular member with an annular barb at one end and a socket to receive a key at a second end. There is an annular retaining ring groove with a retaining ring therein. A second annular member receives, within an internal bore having an annular recess, the first annular member and the retaining ring engages the annular recess to secure the first annular member to the second annular member. The surface of the bore is frusto-conically shaped allowing the retaining ring to be compressed as it travels into the bore until it reaches the annular recess and expands into and is seated in the annular recess.

A single-die injection pump for high-speed internal combustion engines which, because of its compact design and good volumetric efficiency, in conjunction with a high oscillation frequency of the piston, has a pumping quantity comparable to a multiple-die injection pump, without causing excessively high peak torque values in the drive of the single-die injection pump.

A heating unit connected to water tube and tank is installed inside body case connected to electric controller and computer control board. A fan is also inside the body case. The heating unit includes heat collector, tube connector, current regulator, heat exchanger and compressor connected as an entirety to constitute a loop of thermodynamic cycle. Advantages are: high efficiency, no pollution, low cost, and electric heating conversion efficiency as high as 300-400%.

The invention discloses a water dispenser and relates to the technical field of water dispensers. The water dispenser comprises a dispenser body, a tabletop arranged on the dispenser body, a dispenserdoor arranged on the front side of the dispenser body, rollers arranged on the lower side of the dispenser body, a water pump and a controller, the water pump and the controller are arranged in the dispenser body, and a water faucet, a heat-insulating disc and a water boiling coupler are arranged on the tabletop; a water barrel containing cavity is arranged in the dispenser body, a sliding platform capable of sliding back and forth is arranged at the bottom of the inner side of the water barrel containing cavity, a plurality of connection rod guide holes penetrating to the bottom of the dispenser body are arranged at the bottom of the water barrel containing cavity positioned on the lower side of the sliding platform, and a stopping mechanism is arranged in each connection rod guide hole.The water dispenser can be moved freely through the rollers at the bottom when not in use and cannot be moved freely when in use.

A fan-turbine rotor assembly for a tip turbine engine includes an outer periphery scalloped by a multitude of elongated openings which define an inducer receipt section to receive an inducer section and a hollow fan blade section. Each fan blade section includes a turbine section which extends from a diffuser section.

A fan-turbine rotor assembly (24) includes one or more turbine ring rotors (32). Each turbine ring rotor is cast as a single integral annular ring. By forming the turbine as one or more rings, leakage between adjacent blade platforms is minimized which increases engine efficiency. Assembly of the turbine ring rotors to the diffuser ring (114) includes axial installation and radial locking of each turbine ring rotor.

A method of fabricating photodiode includes: a substrate comprising a well is provided, next, a first doping region is formed in the well, following that a conductive layer is formed on the surface of the first doping region by an epitaxial growth process, meanwhile, the conductive layer is in-situ doped to form a second doping region in the conductive layer. The method for fabricating the photodiode in the present invention can prevent the lattice structure from being damaged during the high dozes implantation process. Therefore, the dark current can be reduced and the sensitivity of the photodiode will be increased.

A capacity control valve for a variable-capacity compressor such as used in an air-conditioning system in a motor vehicle is provided, wherein foreign matter is prevented from being caught in the sliding parts and leakage on the sliding parts is prevented from occurring by configuring the capacity control valve so that there are no sliding parts between the valving element and the housing (valve body). The valve includes a bellows-type valve that includes a bellows and a fixing bracket joined in an airtight manner to an end of the bellows. The fixing bracket is fixed in an airtight manner to a valve body between a first valve chamber and a suction port.

The invention provides a polypeptide chelated potassium zinc urea fertilizer and a preparation method thereof, and belongs to the technical field of fertilizer. The fertilizer uses poly-aspartic acid as a chelating agent, and adds 5 kg of polypeptide chelated potassium zinc stock solution into each ton of urea based on the traditional urea. The fertilizer is a novel high efficiency nitrogenous fertilizer, can supply nitrogen, potassium, zinc elements required by plant, can improve the rate of absorbtion and utilization of the plant for the nutrient elements in soil, can supply biological growth elements evenly, and has strong synergistic effect for the nitrogenous fertilizer, potash fertilizer, and phosphate fertilizer. The chelating agent can be biodegraded, and has no pollution for the plant and the soil. The polypeptide chelated potassium zinc stock solution and urea solution can pass two-stage conveying devices of urea solution pump and fusion pump in the preparation method, so that the mixture can be mixed uniformly, and the stability of the product quality can be guaranteed. The polypeptide chelated potassium zinc stock solution is added into the inlet of the urea solution pump, and the moisture of the product can be controlled effectively after performing primary evaporation, granulation and cooling.

Disclosed is an intense pulse light device, in which plural divided light filters coated with individually different materials are rotatably and uniformly aligned around a reflection mirror in order to selectively filter lights according to wavelengths thereof, so that it is not necessary to exchange a handle body or filters, thereby improving convenience of use for the IPL device, and in which the loose contact of power lines and signal lines, leakage of cooling water, and penetration of impurities can be prevented, thereby improving reliability of IPL device. A semicircular reflection mirror aligned around a flash lamp installed in a body and a light filter section is aligned around the reflection mirror while forming a predetermined space therebetween. The light filter section is uniformly divided into two or four light filters so as to increase selectivity for the light radiated from flash lamp. The light filter section is fabricated by uniformly dividing a circular pipe made from glass, quartz or sapphire into plural pipe sections, coating the plural pipe sections with individually different materials in such a manner that only light having a predetermined wavelength passes therethrough, and bonding the plural pipe sections to each other.

A dye-sensitized solar cell having a transparent conductive film at the inner surface of a tube-shaped transparent glass vessel, a semiconductor film photoelectrode to which a dye has been adsorbed formed on this transparent conductive film, and a counter electrode provided in the tube-shaped vessel spaced from this photoelectrode and an electrolytic solution enclosed in the tube-shaped vessel. Both ends of the tube-shaped vessel are tightly sealed by formation of sealing portions melting and compress the glass of the vessel; the transparent conductive film extends into the sealing portion at one end of the tube and an external lead is connected electrically to said transparent conductive film and is led out from the sealing portion to the outside of the tube-shaped vessel; and a lead connected electrically to the counter electrode is led out from the sealing portion at the other end to the outside of the tube-shaped vessel.