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8results about How to "Wide range adjustment" patented technology

Fuel oil combined atomization device applied to small-size high-temperature-rise combustion chamber

The invention discloses a fuel oil combined atomization device applied to a small-size high-temperature-rise combustion chamber, and relates to the technical field of aero-engines, the device comprises a first-stage axial swirler, a second-stage axial swirler and a centrifugal nozzle, the first-stage axial swirler and the second-stage axial swirler are coaxially installed on the head portion of a flame tube, and the centrifugal nozzle is coaxially installed on the head portion of the flame tube. The centrifugal nozzle is located in the first-stage axial cyclone, a venturi tube is further arranged between the second-stage axial cyclone and the first-stage axial cyclone, and a plurality of first oil spraying holes and second oil spraying holes are formed in the circumferential outer wall of the venturi tube. Fuel oil sprayed out of the first oil spraying hole and the second oil spraying hole can be atomized through air passing through the second-stage axial swirler. According to the invention, a partitioned and pressure-divided oil supply mode is adopted, the requirements of small oil supply flow under the working conditions of slow running and the like and large oil supply flow under the maximum design working conditions of climbing and the like are considered, and meanwhile, the requirements of efficient combustion on fuel oil atomization quality under different working conditions are met.
Owner:SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD

Material transfer mechanism and patch auxiliary material pressure maintaining film tearing machine

ActiveCN224727332Uwide range adjustmenteasy to use
The utility model relates to a kind of material transfer mechanism and paste auxiliary material pressure maintaining film tearing machine.It includes: support frame, the upper end of support frame is connected with XZ moving mechanism, XZ moving mechanism is connected with rotating mechanism, rotating mechanism is connected with carrier plate and drives carrier plate rotation;The lower end of carrier plate two sides is equipped with connecting hole, and is connected with adjusting piece by connecting piece, the middle part of adjusting piece is equipped with moving slot, the one end of connecting piece passes through moving slot and inserts connecting hole and is connected with carrier plate, adjusting piece is connected with suction nozzle assembly by moving slot, suction nozzle assembly includes suction nozzle, the upper of suction nozzle is equipped with threaded rod, threaded rod is connected with two fixed nuts by screw thread, the upper end of threaded rod passes through moving slot, two fixed nuts are located adjusting piece two sides respectively and adjusting piece clamping.
Owner:DONGGUAN HUIHAI PRECISION MASCH TECH CO LTD

UWB fusion positioning method and device in underground pipe gallery chamber sub-scene

The invention discloses a UWB fusion positioning method and device in underground pipe gallery chamber sub-scenes, and the method comprises the steps: selecting a fingerprint reference point according to the field environment of a pipe gallery, carrying out the channel estimation of a UWB signal, obtaining the channel pulse response of the UWB signal, carrying out the peak detection, storing a plurality of peak values with the maximum power in a vector, and enabling the peak values to serve as fingerprint information, storing the position coordinates and the fingerprint information of all the reference point locations as an RSS fingerprint database; acquiring a channel pulse response between the UWB base station and the terminal in real time, performing peak detection, and acquiring a fingerprint of the current terminal; traversing the RSS fingerprint database to find a fingerprint which is optimally matched with the fingerprint of the current terminal, and taking a corresponding position coordinate as an RSS fingerprint positioning result; and performing Kalman filtering fusion correction on the RSS fingerprint positioning result and the reserved TOA positioning result to obtain a final positioning result. The precision is effectively improved, the anti-interference performance is enhanced, the deployment management cost is reduced, and the universality of a positioning scheme is improved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Transfer device and vacuum treatment equipment

The invention belongs to the technical field of semiconductor transfer, and discloses a transfer device and vacuum treatment equipment. The transfer device comprises a bearing table, a driving assembly and a plurality of trays. The trays are used for bearing workpieces, each tray is movably connected to the bearing table through an adjusting assembly, and the multiple adjusting assemblies are used for driving the multiple trays to move in different directions; the driving assembly is arranged on the bearing table and connected with the adjusting assemblies so as to drive the adjusting assemblies to act in different directions at the same time. When the transfer device is used, the orientation and spacing adjustment of a plurality of workpieces can be realized only by matching one group of driving assemblies with a plurality of adjusting assemblies, so that the complexity of the whole structure is effectively reduced, and meanwhile, the reduction of the cost for realizing the orientation and spacing adjustment of the workpieces is also facilitated.
Owner:ADVANCED MATERIALS TECH & ENG INC +1

A widely adjustable absorption heat pump

ActiveCN117029313Bwide range adjustmentEasy to adjustWater vaporAbsorption heat pump
The application provides a wide-range adjustable absorption heat pump, and relates to the field of waste heat recovery heating. The application solves the problems of poor solution flow, unimprovable load, and unsatisfied heating demand at the beginning and end of the heating period, and adopts the following scheme: a condenser is internally provided with a first water inlet and a first water outlet, a bypass valve is connected between the first water inlet and the first water outlet, the bypass valve is provided with a flow adjusting part, and the flow adjusting part is used for adjusting the opening degree of the bypass valve; an evaporator is internally provided with a waste heat water inlet and a waste heat water outlet, and is used for absorbing external waste heat; the top of the evaporator is connected to the top of an absorber through a gaseous refrigerant water pipeline; the absorber is internally provided with a second water inlet and a second water outlet, and the lower part of the absorber is connected to the upper part of a generator through a dilute solution pipeline; and the generator is heated by an external heat source to heat internal solution to boiling, and water vapor is generated. The technical scheme of the application can realize wide-range and accurate adjustment.
Owner:北京华源泰盟节能设备有限公司

Modular missile position adjustable wing connecting structure

ActiveCN117870470BAdjustable gear positionoptimize locationProjectilesWing rootRetaining ring
This invention discloses a modular missile wing connection structure with adjustable position. The structure includes a missile body to which wings are connected; four elongated rectangular planes of equal thickness are arranged at equal angles along the axial direction of the missile body, and several equally spaced rectangular grooves are formed on the elongated rectangular planes along their axial direction; a wing flange is provided at the wing root of each wing, and several equally spaced rectangular locking blocks are provided at the bottom of the wing flange; the rectangular locking blocks cooperate with the rectangular grooves to connect several wings to the missile body; the number of rectangular grooves is greater than the number of rectangular locking blocks, and the relative position of the wings is adjusted by adjusting the insertion position of the rectangular locking blocks; several wings are fixed to the missile body by binding circular retaining rings. The above-mentioned wing connection structure is easy to assemble and disassemble and is adjustable, and can adapt to different combat mission requirements.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Acupuncture device

ActiveCN224404009UWill not affect treatment effectEnsure connectivityOuter CannulaMechanical engineering
Disclosed is an acupuncture device including a needle tube and a base. The needle tube includes an outer sleeve having a first through-hole, an inner sleeve having a second through-hole, at least a portion of which is accommodated in the first through-hole, the inner sleeve being slidable and rotatable with respect to the outer sleeve, and a spherical adjusting member coupled to the outer sleeve at a side opposite to the side where the inner sleeve is located and having a third through-hole. The base includes a horizontal portion having a plate shape with a circular hole in the center thereof and coupled to the spherical adjusting member through the circular hole, and a vertical portion extending downward from a distal end of the horizontal portion to define a space for accommodating at least a portion of the spherical adjusting member together with the horizontal portion. An inner wall of the vertical portion includes a vertical wall connected to the horizontal portion and an inclined wall extending from the vertical wall in a direction away from the spherical adjusting member. The space includes a cut corner portion adjacent to the inclined wall. The device can be used for an electroacupuncture or general acupuncture clinical randomized controlled trial.
Owner:XIYUAN HOSPITAL OF CHINA ACAD OF CHINESE MEDICAL SCI