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465results about How to "Avoid ablation" patented technology
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Systems and methods for treating tissue with radiofrequency energy
ActiveUS9750563B2Reduce morbidityAvoids such overheating of tissueUltrasound therapyDiagnosticsRadio frequencyLesion
A system for controlling operation of a radiofrequency treatment device to apply radiofrequency energy to tissue to treat tissue to create lesions without ablating the tissue. The system includes a first treatment device having a plurality of electrodes. The electrodes are maintained in axial alignment and fixed radial spacing in retracted and extended positions. The device includes a basket having a plurality of arms. The arms are maintained in a fixed radial spacing in the collapsed position of the basket.
Owner:MEDERI RF LLC
Pain management using cryogenic remodeling
ActiveUS20090248001A1Avoid ablationInduce apoptosis of the nerveSurgical instruments for coolingTherapeutic coolingMuscle contractionPain management
Medical devices, systems, and methods for pain management and other applications may apply cooling with at least one probe inserted through an exposed skin surface of skin. The cooling may remodel one or more target tissues so as to effect a desired change in composition of the target tissue and / or a change in its behavior, often to interfere with transmission of pain signals along sensory nerves. Alternative embodiments may interfere with the function of motor nerves, the function of contractile muscles, and / or some other tissue included in the contractile function chain so as to inhibit muscle contraction and thereby alleviate associated pain. In some embodiments, other sources of pain such as components of the spine (optionally including herniated disks) may be treated.
Owner:PACIRA CRYOTECH INC
Non-penetrating filtration surgery
ActiveUS20050096639A1Raise security concernsReduce and eliminate scanningLaser surgeryDiagnosticsLight beamFiltration surgery
Apparatus for ophthalmic surgery, especially non-penetrating filtration surgery, comprising a laser source that ablates sclera tissue at steps of intermediate thickness. Optionally, the beam is scanned using a scanner and its results viewed using an ophthalmic microscope.
Owner:I OPTIMA LTD
Non-penetrating filtration surgery
InactiveUS7135016B1Reduce penetrationDispersing heatLaser surgerySurgical instrument detailsPhysicsMicroscope
This invention is an apparatus for ophthalmic surgery comprising a laser source (52) that generates a laser beam (54); a scanner (56) comprising an input for said laser beam, and an output of a spatially scanned laser beam (54); controlling circuitry that drives said scanner (56) to remove tissue in a desired pattern on the eye (40); a microscope (58) for viewing said tissue removal; and a beam combiner (70) comprising a first input for a line of sight of said microscope (58) and second input for said spatially scanned beam (54).
Owner:I OPTIMA LTD
Cooled RF ablation needle
InactiveUS20070073285A1Avoid ablationSurgical needlesSurgical instruments for heatingRf ablationEngineering
An ablation system includes an ablation electrode assembly operatively connectable to sources of electrosurgical energy and cooling fluid. The electrode assembly includes a hub defining a chamber therein; at least one electrically conductive ablation needle extending from the hub, the ablation needle including a distal end portion configured to penetrate tissue, said distal end portion being electrically and thermally conductive for establishing electric and thermal communication with the tissue; a heat sink operatively connected to the ablation needle, the heat sink being connected to the ablation needle to draw energy away from at least the distal end portion thereof, the heat sink including a proximal end extending into the chamber of the hub; and a conduit fluidly connected to the hub for delivering fluid into the chamber thereof from the source of fluid, wherein the fluid withdraws energy from the proximal end of the heat sink.
Owner:COVIDIEN AG
Pain management using cryogenic remodeling
ActiveUS8298216B2Avoid ablationInduce apoptosis of the nerveSurgical instruments for coolingTherapeutic coolingMuscle contractionSkin surface
Owner:PACIRA CRYOTECH INC
Insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection
ActiveCN104789175AAvoid failureImprove lightning protectionNon-macromolecular adhesive additivesSynthetic resin layered productsFiberCarbon fibers
Belonging to the technical field of lightning protection, the invention relates to an insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection. The adhesive is mainly prepared from the following raw materials: 20-100% and not up to 100% of a mixture of high temperature resistant resin and a curing agent, and 0-80% and greater than 0% of an insulating and thermal conductive ablation resistant inorganic filler. After curing, the electrical conductivity of the adhesive is in the range of 10<-8>-10<-20>S / m, the DC breakdown voltage in the air is in the range of 30-300kV / mm, the thermal conductivity is in the range of 0.2-3.0W / (m.K), and the ablation resistant temperature is up to 300DEG C. A certain thickness (30-250micrometer) of the insulating and thermal conductive ablation resistant adhesive is employed to stick a conductive film to the surface of a continuous carbon fiber laminated composite material part, thus preventing conduction of current to the continuous carbon fiber laminated composite material part and improving the lightning protection effect of the conductive film.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
Cooled RF ablation needle
InactiveUS7879031B2Avoid ablationSurgical needlesSurgical instruments for heatingRf ablationCooling fluid
Owner:COVIDIEN AG
Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick
ActiveCN101227068AReduce pulse currentAvoid harmElectric connection structural associationsApparatus for overhead lines/cablesAccess methodDelivery vehicle
The invention is a hot-line job equipotential entering method of A.C. extra or ultrahigh voltage transmission line and the electric displacement rod. The method is characterized in that the operating staff wears extra or ultrahigh voltage A.C. hot-line job complete set barrier clothes and accesses the charged body by the insulated delivery vehicle after connecting the electric displacement rod and the barrier clothes, when operating staff is 0.4-0.6m from the charged body, the operating staff use the special electric displacement rod to contact the charged body in order to transfer electric potential and enter the equipotential. The electric displacement rod comprises a lead-in wire 7, a connector 8, a metallic rod 9 and a crampon 10, wherein the lead-in wire 7 and the crampon 10 are connected with two ends of the metallic rod 9 separately, the connector 8 is connected with the other end of lead-in wire 7, the metallic rod 9 is circular and has smooth surface. The invention reduces impulse current substantially, which improves the safety of entering the equipotential, extends the durability of barrier clothes, and improves the working efficiency of hot-line job.
Owner:STATE GRID ELECTRIC POWER RES INST
Cutting method of LED chip
InactiveCN104347760AAvoid ablationDoes not affect electrical characteristicsSemiconductor/solid-state device manufacturingFine working devicesEngineeringLaser cutting
The invention discloses a cutting method of an LED chip. The method comprises drawing scratches by use of laser on the back surface of the chip and performing saw cutting by use of a diamond saw blade knife, wherein the saw blade knife is an isosceles inverted triangle with a symmetrical left portion and right portion, and the included angle between a knife side surface and a horizontal line is 30 DEG to 60 DEG. The method further comprises performing overturning and film reversing on the back-cut chip and cutting the front surface of the chip along grooves to form crystal grains by use of a splinter knife. According to the invention, the problems of backside collapse, burr and the like by use of a conventional saw blade process are solved, the problem of ablation brought by laser cutting is avoided, and the method is simple to operate and easy to realize.
Owner:LATTICE POWER (JIANGXI) CORP
Active carbon activation furnace and active carbon production method
The invention discloses an active carbon activation furnace and an active carbon production method and relates to the field of active carbon production equipment and active carbon production technologies. The safety of an active carbon production process can be improved to a certain extent; the activation furnace works stably for a long term; and the quality and the productive capacity of produced active carbon are greatly improved. The active carbon activation furnace comprises a furnace body, a material entry device and a discharge mechanism, wherein the furnace body is internally provided with a burning passage communicated with the interior of the furnace body; air is admitted to the burning passage; the interior of the furnace body is in a negative pressure state; and air pressure in the burning passage is lower than that in the furnace body. The active carbon production method comprises the following steps: A: arranging the burning passage and material passages, B: admitting steam into the material passages, C: leading liberated gas in the material passages into the burning passage, D: heating materials in the material passages, and E: admitting flue gas generated by burning into a steam generator for heat exchange. The active carbon activation furnace and the active carbon production method are mainly used for active carbon production.
Owner:张西进
Clutch temperature control method and system for automatic wet-type double-clutch gearbox
ActiveCN105156645AAvoid ablationExtended service lifeGear lubrication/coolingTemperature controlProtection mechanism
The invention provides a clutch temperature protection control method and system for an automatic wet-type double-clutch gearbox. The signals of the conveying torque of a clutch, the rotating speed of a clutch driving disk, the rotating speed of a clutch driven disk, the oil temperature of a gearbox body and the pressure of clutches are used for calculating to obtain the temperature of the clutches, and whether a clutch temperature protection mechanism is started or not is judged according to the calculated and obtained temperatures of the clutches, so that the ablation of the clutches due to too high temperatures is avoided, and the service lives of the clutches and the gearbox body can be prolonged easily.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Method for calculating switching-off and switching-on time of breaker and stroke of moving contact of breaker
InactiveCN103487748AReduce pollutionBurn out preventionCircuit interrupters testingMiniaturizationEngineering
The invention discloses a method for calculating the switching-off and switching-on time of a breaker and the stroke of a moving contact of the breaker. According to the method, first, a switching-on operating coil starts to be powered on after the breaker receives a switching-on instruction, the coil generates sufficient electromagnetic force to push an iron core to move along with increasing of current so that an energy storage mechanism can be started to release energy to generate acting force for driving the moving contact to move, then, the moving contact can make contact with a fixed contact and arrive at a position where switching-off is just achieved at the moment, and the stoke of the moving contact is called as idle stroke before; second, the moving contact continues moving on to arrive at the switching-on position and keeps a switching-on state with a mechanism, and the process is called as over-stroke; the stroke distance of the moving contact is the sum of the idle stroke distance and the over-stroke distance; in the switching-off process, the first step and the second step are repeated in the same way. The method is simple in algorithm, easy to realize in an embedded system, capable of lowering cost effectively and beneficial to miniaturization of the system. The moment when the moving contact of the breaker starts to move and the moment when the moving contact of the breaker stops moving can be accurately acquired.
Owner:XUCHANG UNIV
Three-level light-gas gun driven by compressed nitrogen
A three-level light-gas gun driven by compressed nitrogen comprises a primary gas chamber, a primary pump tube, a secondary gas chamber, a secondary pump tube, a tertiary gas chamber and a transmitting tube. The primary gas chamber is connected with the primary pump tube, and a quick opening valve is arranged between the primary gas chamber and the primary pump tube; the primary pump tube is connected with the secondary gas chamber; the secondary gas chamber is connected with the secondary pump tube, and a secondary diaphragm is arranged between the secondary gas chamber and the secondary pump tube; the secondary pump tube is connected with the tertiary gas chamber; and the tertiary gas chamber is connected with the transmitting tube, and a tertiary diaphragm is arranged between the tertiary gas chamber and the transmitting tube. A three-level driving mode is adopted, energy utilization efficiency among levels is improved, a severe gas environment in a gun body is improved, and ablation risks of the gun body are reduced; the secondary gas chamber and the tertiary gas chamber are of straight barrel type structures or barrel structures with large cone angles, and the energy utilization efficiency is improved; and a replaceable ablation ring is arranged at the front end of the transmitting tube, the ablation risks of the gun body are reduced, and experimental cost of super-speed transmission is greatly reduced.
Owner:NORTHWEST INST OF NUCLEAR TECH
Method for selectively clearing single-phase ground fault of ship shore power system
ActiveCN102142674AReliable removal of faultsLow costEmergency protective circuit arrangementsElectricityGround failure
The invention discloses a method for selectively clearing a single-phase ground fault of a ship shore power system. A variable reactor is arranged between a system neutral point and the ground. When the system is in a single-phase ground fault, the occurrence of the single-phase ground fault is judged according to the rise of a neutral point voltage to ground after the ship shore power system is in a single-phase ground fault; after the single-phase ground fault occurs, the variable reactor is controlled to act within the range of a time angle phi 0 in one cyclic wave of the changes of the neutral point voltage to ground, thus the variable reactor is controlled to gradually decrease a reactance value, and an instaneous tripping mechanism of a corresponding circuit breaker is triggered by gradually increasing short-circuit current so as to clear the fault, wherein the ranges of the time angle phi 0 are as follows: phi 0 is not smaller than 0 DEG and not larger than 50 DEG, phi 0 is notsmaller than 105 DEG and not larger than 230 DEG, and phi 0 is not smaller than 285 DEG and not larger than 360 DEG; and before the circuit is completely disconnected, a fuse connected with a corresponding position of the variable reactor is fused, so that the system is restored to a low-current grounding state and the ablation of a contact of a circuit breaker is avoided.
Owner:JIANGSU HONGAN TRANSFORMER +1
Anode of supersonic plasma torch, and supersonic plasma torch
The invention discloses an anode of a supersonic plasma torch, and the supersonic plasma torch. Mainly, the conventional laval-type anode is divided into two parts, wherein one part near a cathode body is called as a basic anode; the other part far away from the cathode body is called an auxiliary anode; and the two parts are isolated by a high-temperature-resistant insulation ceramic chip. The cathode body is fixed on a conductive torch core and is sequentially connected with the basic anode and the auxiliary anode in an axial direction. When the anode works, an arc root is transferred from the basic anode to the auxiliary anode, so that a nozzle of the laval-type basic anode with a complicated structure is protected while an electric arc is lengthened. Therefore, the voltage is increased under the condition that the working current is unchanged. As a result, the energy utilization rate is improved.
Owner:NANJING UNIV OF SCI & TECH
Regenerative device and method for desulfurized and denitrified active coke
ActiveCN103418360ARealize online modificationImprove the effect of desulfurization and denitrificationOther chemical processesDispersed particle separationBlocked valvesProcess engineering
The invention discloses a regenerative device and method for desulfurized and denitrified active coke. The regenerative device comprises a regenerative reactor, wherein the regenerative reactor is composed by the connection of an inlet blocking valve, a feeding bin, a heating bin, a regenerative bin, a precooling bin, a cooling bin, a discharging bin, and an outlet blocking valve in sequence; a heating heat exchanger component is arranged in the heating bin; a precooling heat exchanger component is arranged in the precooling bin; a cooling heat exchanger component is arranged in the cooling bin; a nitrogen carrying bin for inletting ammonia nitrogen gas to improve the desulfurization and denitrification performances of regenerated active coke during regeneration process is arranged between the precooling bin and the cooling bin. The regenerative method adopts the regenerative device to conduct the regeneration of the active coke. According to the invention, more reasonable utilization of energy can be realized in the regeneration process to allow the desulfurization and denitrification performance of the regenerated active coke to obtain further improvement; on-line modification can be conducted on the active coke through the nitrogen carrying bin to keep high desulfurization and denitrification performance of the active coke.
Owner:SHANGHAI CLEAR ENVIRONMENTAL PROTECTION SCI & TECH
Devices and methods for ablating near AV groove
InactiveUS20080161705A1Avoid ablationEasy to distinguishUltrasonic/sonic/infrasonic diagnosticsUltrasound therapyElectrodeAblation
The invention encompasses a device, system and methods for ablating tissue, where a ablating device includes an elongated shaft having a flexible distal end, and at least one ablation element and at least one electrode detecting electrical signals of the heart, such that a user can assess whether the at least one ablation element is located on a tissue of the atrioventricular (AV) groove of a patient's heart.
Owner:ST JUDE MEDICAL ATRIAL FIBRILLATION DIV
Multi-oxygen burner and combustion method thereof
ActiveCN102261651AAvoid ablationExtended service lifePulverulent fuel combustion burnersIndirect carbon-dioxide mitigationCycloneCombustor
The invention discloses an oxygen-enriched burning system and a combustion method thereof. A burner body is arranged. A fire ejecting hole is arranged in the middle of the burner body. A fuel distributor is arranged at one end of the small hole of the fire ejecting hole. Primary and secondary oxygen nozzles, an igniter, a flame monitor and a fire viewing hole passing through the burner body in the same direction of the fire ejecting hole are arranged on the periphery of the fire ejecting hole on the burner body. A flange plate connected with a fuel inlet pipe is arranged on the outer port of the fuel distributor. Both outer ports of the primary and secondary oxygen nozzles are provided with the flange plate connected with the fuel inlet pipe. The oxygen nozzles are connected with an oxygen supply system. A fuel cyclone separator is connected with a fuel supply system. A control cabinet is additionally arranged so that the full system of the whole burner is detected and controlled. The burner disclosed by the invention is applicable to combusting gases and powdered fuels. The burner has the advantages of complete structure, high combustion efficiency, little smoke discharge, environment protection, energy saving and high operation automation degree.
Owner:王立臣
All-solid-state high-voltage microsecond pulse generator based on FRSPT (Fractional-turn Ratio Saturable Pulse Transformer) and anti-resonance network
ActiveCN107040244ACompact integrationAvoid the voltage equalization problem of the working voltagePulse generation by bulk negative resistance devicesAll solid stateMicrowave
The invention relates to a microsecond pulse generator, particularly relates to an all-solid-state high-voltage microsecond pulse generator based on a FRSPT (Fractional-turn Ratio Saturable Pulse Transformer) and an anti-resonance network, and belongs to the field of pulse power. The pulse generator consists of a charging module, a pulse boosting module, a pulse forming module and a load. The charging module is mainly used for charging the pulse generator, and charges the pulse forming module by the pulse boosting module; the pulse boosting module is the FRSPT; in one aspect, the FRSPT is used as a transformer of the pulse boosting module, and in the other aspect, the FRSPT is used as a switch of the pulse forming module; and the pulse forming module is used for forming a quasi-square wave pulse which is reasonable in leading and lagging edge time and good in flat top degree. The pulse generator is long in service life and stable to operate; all-solid-state compact integration of the pulse generator is implemented; an output square wave is high in quality; and the all-solid-state high-voltage microsecond pulse generator can be used for the fields of a high-power microwave source, foods, sterilization and disinfection, wastewater treatment and the like.
Owner:NAT UNIV OF DEFENSE TECH
Optical Element
An optical element includes a first liquid, a second liquid, and a container, wherein the first liquid and the second liquid substantially differ in refractive index and are immiscible, the first liquid and the second liquid are hermetically placed in the container so that an interface between the first liquid and the second liquid forms a specific shape, the shape of the interface between the first liquid and the second liquid is changed by applying a voltage between the first liquid and the second liquid through electrodes formed in the container, and the container is (1) a resin container of which an inner surface portion of a container wall has a resin phase with a fluorine atom content higher than that of an internal portion of the container wall, (2) a container of which a top portion and a bottom portion are formed of a resin composition including a resin and a hindered amine compound having a transmittance of light with a wavelength of 400 nm measured for a 5 wt % chloroform solution using a cell with 10-mm optical path of 90% or more and a molecular weight of 1500 or more, or (3) a container of which an inner surface is coated with a CVD film formed of a fluorocarbon compound. According to the present invention, an optical element can be provided of which the refractive power for light passing therethrough can be efficiently controlled with a small configuration utilizing an electrowetting phenomenon and which allows continuous transmission or concentration of light from a blue laser (short-wavelength laser).
Owner:ZEON CORP
Novel composite contact vacuum arc-extinguishing chamber and vacuum circuit breaker with same
ActiveCN103594280AUniform magnetic fieldEasy to installHigh-tension/heavy-dress switchesAir-break switchesVacuum arcVacuum interrupter
The invention discloses a novel composite contact vacuum arc-extinguishing chamber and a vacuum circuit breaker with the same. The novel composite contact vacuum arc-extinguishing chamber comprises a static side structure portion, a movable side structure portion and a shell structure. The static side structure portion comprises a static side arcing current conducting rod and a static side main conducting rod which is arranged in the static side arcing current conducting rod and is in clearance fit with the static side arcing current conducting rod. A static side arcing magnetic field contact and a static side annular arcing-resisting contact material are sequentially welded at the lower end of the static side arcing current conducting rod. A static side conducting contact is welded at the lower end of the static side main conducting rod. In the arcing process, the static side conducting contact is located inside the static side arcing magnetic field contact all the time, the static side main conducting rod is connected with the static side arcing current conducting rod through a static side small-diameter corrugated pipe, the static side arcing current conducting rod is connected with a cover plate on the upper side of the arc-extinguishing chamber through a static side large-diameter corrugated pipe. A static side compression spring is installed inside the static side large-diameter corrugated pipe. According to the novel composite contact vacuum arc-extinguishing chamber, the problem that the magnetic structural design does not exist in the existing vacuum arc-extinguishing chamber contact design is solved.
Owner:XI AN JIAOTONG UNIV
Photosensitive planographic printing plate precursor and method of producing a planographic printing plate
InactiveUS20130029268A1Reduced activitySufficient developabilityPhotosensitive materialsPhotomechanical exposure apparatusSide chainImage recording
The invention provides a planographic printing plate precursor that is capable of providing a planographic printing plate in which ablation at the time of infrared laser exposure is inhibited and which has excellent developability of a non-image portion and printing durability of an image portion. The photosensitive planographic printing plate precursor, includes: an image recording layer on a hydrophilic support, the image recording layer including: (A) an infrared absorber; and (B) a copolymer having a repeating unit having a zwitterionic structure in a side chain thereof, and a repeating unit having a heteroalicyclic structure or a repeating unit having a hetero atom and an alicyclic structure in the main chain thereof.
Owner:FUJIFILM CORP
Oxygen-rich gas combustion device and oxygen-rich gas combustion method
ActiveCN104501163AReasonable structural designSolve the phenomenon of ablationFuel supply regulationIndirect carbon-dioxide mitigationReverberatory furnaceControl function
Owner:北京凯明阳热能技术有限公司
Method for preparing ordered macroporous anodic alumina film by two-step anodic oxidation
InactiveCN103243370AAperture continuously adjustableArranged in orderSurface reaction electrolytic coatingIce waterPhosphoric acid
The invention relates to a method for preparing an ordered macroporous anodic alumina film by two-step anodic oxidation. The method comprises the following steps of: carrying out hard anodizing on aluminum which is subjected to high temperature annealing, ultrasound deoiling and electrochemical polishing treatments in modified oxalic acid electrolyte, so as to obtain a porous anodic alumina film; removing an irregular porous alumina layer which is formed after first anodic oxidation by using a mixed solution of chromic acid and phosphoric acid; then carrying out second anodic oxidation, namely carrying out mild anodic oxidation on the aluminum sheet with the alumina film removed in the modified phosphate electrolyte in a constant voltage manner, wherein the voltage in the second anodic oxidation is completely the same as the voltage in the first anodic oxidation; and finally chambering the test sample subjected to anodic oxidation in a phosphoric acid solution to obtain the ordered macroporous anodic alumina film. The preparation method is carried out under an ice-water bath condition without the requirement on a very low temperature or a high voltage; the cost of used raw materials is low; and equipment is simple and is convenient to operate and easy to control, and therefore the method has a bright application prospect in the modern industry and high and new technology field.
Owner:DONGHUA UNIV
Cleaning catalyst for tail gas of automobile, and preparation method
ActiveCN1872409AImprove sulfur resistanceIncrease concentrationDispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsChemistryAutomotive exhaust
A catalyst for cleaning the tail gas of car by decreasing the sulfide is composed of the carrier (67-95 Wt%) consisting of alumina and the oxide of the metal chosen from La, Ce, Pr, Nd, Zr, Mg, Cr, Mn, Fe, Co and Ni, and the active component consisting of the oxide of the metal chosen from Co, Mo, Ni, W, Zr, Ti, La, Ce, Pr and Nd and the oxide of noble metal chosen from Pt, Pd and Rh. Its preparing process is also disclosed.
Owner:CHINA PETROLEUM & CHEM CORP +1
Rain wiper control system and motor control method
The invention discloses a rain wiper control system, which comprises a rain wiper combination switch, a rain wiper motor, a rain wiper low-speed relay and a rain wiper high-speed relay, wherein the rain wiper combination switch is provided with a zero gear terminal, an intermittent gear terminal, a low-speed gear terminal and a high-speed gear terminal; and the rain wiper motor is provided with a high-speed terminal and a low-speed terminal. The rain wiper control system is characterized by also comprising an automobile body controller, wherein the automobile body controller is connected with the rain wiper combination switch; the rain wiper low-speed relay and the rain wiper high-speed relay are connected with the automobile body controller; the high-speed terminal and the low-speed terminal on the rain wiper motor are connected with a power supply after passing through normally open contacts of the rain wiper low-speed relay and the rain wiper high-speed relay. According to the rain wiper control system and a rain wiper control method, control signals are isolated from a driving circuit; a rain wiper rubs glass for consumption to stop an automobile, instantaneous large current cannot be generated, and a phenomenon that contacts of the combination switch are burnt is stopped; and the rain wiper control system meets requirements for practicability and a low fault rate, reflects a humanized design concept, and has a wide market prospect.
Owner:SINO TRUK JINAN POWER
Method for producing aviation gas turbine engine combustion chamber burner inner liner
The invention discloses a method for producing an aviation gas turbine engine combustion chamber burner inner liner. The method comprises the following steps: S1, forming a blank part of a wall board and a blank part of a heat insulation board, and manufacturing ribs on the blank part of the heat insulation board; S2, rolling the blank part of the heat insulation board to be in a cylinder shape, enabling the two ribs on the two opposite side walls of the blank part of the heat insulation board to be in butt joint and be welded to from a wide rib; S3, spraying a welding flux on the inner surface of the wall board, welding one side edge of the wall board on the wide rib, and winding the blank part of the wall board on the outer surface of the heat insulation board in a rolling mode; S4, using a contact rolling tool for enabling the ribs of the heat insulation board to be in contact with the inner surface of the wall board; S5, placing the assembled heat insulation board and the wall board into a vacuum furnace to be brazed, and then welding the position of an opening in the wall board along the generatrix; S6, correcting the size of the heat insulation board and the size of the wall board. According to the method, a slot can be prevented from being decreased and even blocked, and the burner inner liner can be prevented from being burnt ablated and even burnt through due to overheating.
Owner:BEIJING POWER MACHINERY INST
Dish type solar energy thermal power generation system and heat collector thereof
The invention relates to the technical field of a solar energy thermal power generation system and discloses a heat collector used for a dish type solar energy thermal power generation system. The heat collector comprises a heat collecting cavity and at least one layer of heat-absorbing coil, wherein the heat collecting cavity is provided with an opening part, the heat-absorbing coil forms a cavity structure, the cavity structure is provided with an opening hole, the cavity structure is arranged in the heat collecting cavity, the opening hole is aligned to the opening part, and a low temperature inlet of the heat-absorbing coil is arranged on the position with the largest energy distribution density of the incident light of the cavity structure. The heat collector can prevent the heat-absorbing coil from being eroded because of the partial overtemperature and from being burnt due to sudden fall of a convection heat transfer coefficient resulted from working medium phase change. The invention also discloses a solar energy thermal power generation system with the heat collector.
Owner:XIANGTAN ELECTRIC MFG CORP LTD
Fireproof heat-insulation silicon rubber and preparation method thereof
The invention discloses a fireproof heat-insulation silicon rubber and a preparation method thereof. The fireproof heat-insulation silicon rubber comprises the following components in percentage by mass: 45-55% of substrate, 10-15% of high-temperature-resistant functional filler, 15-25% of flame retardant, 10-20% of reinforcing agent and 1-5% of other assistants, totaling 100%. The preparation method of the fireproof heat-insulation silicon rubber comprises four steps. The invention provides a silicon rubber material with excellent fireproof and heat-insulation properties, which is prepared by compounding the high-temperature-resistant functional material, flame-retardant material, reinforcing material and other assistants according to the optimized formula. The fireproof heat-insulation silicon rubber is especially suitable for fireproof heat-insulation requirements of rocket engines and potential fire region working condition requirements of airplanes.
Owner:NORTHWEST RUBBER & PLASTIC RES & DESIGN INST CO LTD
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