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92 results about "Power group" patented technology

An intelligent computing power scheduling method and system based on dynamic programming

The present invention belongs to the technical field of data processing, and particularly relates to an intelligent computing power scheduling method and system based on dynamic programming. By real-time monitoring the current available resource information of multiple computing power clusters, calculating the resource difference value between clusters to evaluate the balance of resource allocation, and determining a preliminary computing power grouping scheme. On this basis, according to the historical task types and resource consumption characteristics, match the suitable task types for each group, and adjust the preliminary grouping scheme to form an optimized computing power grouping. Using the optimized computing power grouping, calculate the service capacity scores of each group according to the preset service level agreement, and provide a recommended set of computing power resource services to users after sorting by the scores. The present invention optimizes the computing power grouping through a dynamic evaluation mechanism, ensures the balanced resource allocation and can meet the requirements of different types of tasks, and improves the overall utilization rate and service quality of computing power resources.
Owner:SHENZHEN ZHIHAULI DIGITAL TECHNOLOGY CO LTD

Property energy consumption abnormity monitoring method and system based on big data analysis

The invention discloses a property energy consumption abnormity monitoring method and system based on big data analysis, and relates to the technical field of energy consumption abnormity management. According to the property energy consumption abnormity monitoring method based on big data analysis, in a specified energy consumption monitoring time period, an energy consumption power group of a specified property service area is firstly obtained, and the energy consumption power group is compared with an energy consumption prediction interval to screen energy consumption abnormity; according to the comparison result, energy consumption abnormal data in the abnormal energy consumption time period are repeatedly checked, transient normal fluctuation caused by normal working condition switching of equipment or sudden change of the external environment is eliminated, and repeated checking comprises peak value abnormal detection and recheck verification; and finally, after repeated inspection is completed, association verification is carried out in combination with the abnormal energy consumption feature set. According to the method, a scientific basis is provided for property energy consumption management, accurate positioning of energy consumption abnormal points is facilitated, the problem of abnormal identification misjudgment caused by transient change in energy consumption monitoring in the prior art is effectively solved, and energy conservation, consumption reduction and cost optimization are realized.
Owner:PARSON SMART SPACE TECH GRP CO LTD

Charging power scheduling method, electronic equipment and computer readable storage medium

The invention relates to the technical field of new energy charging, in particular to a charging power scheduling method, electronic equipment and a computer readable storage medium, and the charging power scheduling method comprises the steps: obtaining an initial charging SoC, a target charging SoC, a charging curve and a battery capacity of each charging vehicle, determining a plurality of SoC check points of each charging vehicle according to the initial charging SoC and the target charging SoC, determining a plurality of initial charging power groups and a reference charging duration from the initial charging SoC to the target charging SoC according to the charging curve, and iteratively updating each initial charging power group according to a particle swarm optimization algorithm, the battery capacity and the reference charging duration, and obtaining a target charging power group, and scheduling the charging power of each charging vehicle according to the target charging power group. By selecting the power of each charged vehicle at an individual SoC checkpoint for optimization, the computational complexity can be reduced, and timely charging can be ensured according to the target optimization power that minimizes the charging delay of all charged vehicles.
Owner:SHENZHEN DAOHE TONGTAI ROBOT CO LTD

A Grouping and Layering Cooperative Scheduling Method for a Multi-Energy Storage Power Station Oriented to Wind and Photovoltaic Bases

The present invention discloses a method for grouped and hierarchical collaborative scheduling of a multi - energy storage power station for a wind - solar base. By constructing a day - ahead scheduling optimization model, calculating using the day - ahead scheduling optimization model to obtain the day - ahead scheduling plan of the energy group, constructing a predictive control rolling scheduling model to correct the day - ahead scheduling plan, obtaining the corrected day - ahead scheduling plan, and at the same time, judging the operation amount that the energy group needs to intervene in real - time frequency modulation according to the states of two auxiliary power groups, and intervening in the states of the two auxiliary power groups. In the real - time operation stage, when the two auxiliary power groups alternately are responsible for suppressing the power bounce and fall fluctuations, the energy group intelligently intervenes in suppressing the power fluctuations, instantaneously tracks and responds to the power fluctuations to complete real - time frequency modulation. The above - mentioned method corrects the day - ahead energy storage scheduling error by relying on the constructed multi - energy storage power station grouped and hierarchical model, and further groups and divides the work of the power groups to suppress the real - time power fluctuations, so as to realize the peak shaving and frequency modulation of the power generation and grid connection of the wind - solar base.
Owner:STATE GRID ECONOMIC TECH RES INST CO LTD

Multi-station rail piece connecting system for flange machining after steel rail forging

The utility model relates to synchronous cross operation control over transverse station connection, rail piece flash processing and heel end rail bottom milling of special-shaped steel rails, in particular to a multi-station rail piece connection system for flash processing after forging of steel rails, which can be used for intelligent manufacturing of turnouts. The whole transverse station mainly comprises a feeding and storing area, a feeding and overturning area, a waiting area, a machining area, an inspection area, a discharging and overturning area and a discharging and collecting and storing area. The material waiting area has the double functions of material taking, material placing and material waiting for heel end milling rail pieces and material waiting for flash machining at the same time, so that rail piece feeding connection of rail bottom milling and transition section flash machining is achieved. The connecting vehicle body can move in the transverse area of the whole flash machining production line in a through mode and can transversely penetrate through seven transverse station areas. The connecting system is mainly composed of a ground rail unit, an advancing power set, a vehicle body frame, a rail piece inverted supporting body and a height oil cylinder set.
Owner:CHINA RAILWAY BAOJI BRIDGE GROUP CO LTD +1

Onion impurity removing and skin breaking machine

The embodiment of the invention relates to the technical field of onion skin breaking, and provides an onion impurity removing and skin breaking machine which comprises an impurity removing box, a skin breaking and impurity removing roller set, an impurity removing power box and a pneumatic skin breaking mechanism, at least two impurity removing cavities are formed in the upper portion of the impurity removing box, and an impurity discharging cavity is formed in the lower portion of the impurity removing box; the number of the peel breaking and impurity removing roller sets is at least two, the peel breaking and impurity removing roller sets correspond to the impurity removing cavities in a one-to-one mode, the peel breaking and impurity removing roller sets are rotationally arranged on the lower portions of the impurity removing cavities in the impurity removing box, the impurity removing power box is arranged on one side of the impurity removing box, and an impurity removing power set capable of driving the at least two peel breaking and impurity removing roller sets to rotate is arranged in the impurity removing power box. The pneumatic peel breaking mechanism is arranged in the impurity removing power box and connected with the impurity removing power set. By means of the technical scheme, the problems that in the prior art, an onion impurity removing and skin breaking machine is low in processing efficiency, and incomplete skin peeling is prone to occurring are solved.
Owner:SHIJIAZHUANG HUIKANG FOOD CO LTD

A power group control optimization distribution management system based on intelligent elevator

The present application relates to the technical fields of power group control optimization distribution management, and is used to solve the problems that the traditional elevator system not only has low operation efficiency but also has large energy consumption, and cannot adjust the elevator operation according to the actual situation, thereby causing long waiting time and increased energy consumption, and particularly discloses a power group control optimization distribution management system based on intelligent elevator, which comprises a data acquisition unit, a server, an elevator operation analysis unit, a personnel distribution analysis unit, a power consumption prediction analysis unit, a power distribution management unit, a control execution unit and a display terminal; through the cooperative work of each component, the present application realizes reasonable power distribution of each elevator according to the actual operation condition of the elevator, and improves the elevator operation efficiency and the reasonable utilization of power energy.
Owner:JIANGSU XIDE ELEVATOR

Ejector propeller (X1)

ActiveCN310169694SPower groupMotive power
1. The name of the design product: jet pump propeller (X1). 2. The use of the design product: jet pump propeller use: jet pump power group provides forward power for ships or water products. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:ZHANJIANG CHUANGTIAN ELECTRONIC TECHNOLOGY CO LTD

Auxiliary control device for stay wire of power tower group

ActiveCN222771979UTowersPower groupTower
The utility model relates to an auxiliary control device for a stay wire of an electric power group tower, and relates to the field of electric power group tower derrick mounting equipment. The device comprises a suspension frame, a bracket is arranged under the suspension frame, the suspension frame is connected with the bracket through a wheel set, the wheel set comprises a steel wire stay wire, a rotating wheel and a base fixedly installed on the ground, one end of the steel wire stay wire penetrates through the rotating wheel and is fixedly connected with the base, and the other end of the steel wire stay wire is fixedly connected with the bracket. The suspension frame and the bracket are mutually connected through the wheel sets, so that the bottom of the derrick can be conveniently supported through the bracket when the derrick is mounted, and the derrick is limited by sleeving the derrick with the suspension frame; and in the process of lifting the rotating wheel on the wheel set, the holding pole can continuously stretch out of the middle of the suspension frame, and the purpose of stable lifting is achieved.
Owner:WUHAN BAITAI ELECTRIC POWER ENG CO LTD

Groove forming equipment for fuse contact piece

The invention relates to a profiled groove forming device for a fuse contact piece, which comprises a base arranged on a table top of a rack and provided with a plurality of lifting columns for a movable carrying table to move up and down along the lifting columns; the movable carrying table is used for installing the fuse contact piece, enables the processing surface of the fuse contact piece to be placed upwards, and is driven by a jacking mechanism to ascend or descend; the scraping assembly is fixedly arranged at the top of the base in a suspended mode and used for conducting scraping and slotting on the fuse contact piece on the movable carrying table; the moving direction of the scraping assembly is perpendicular to the lifting direction of the movable carrying table. The power unit is connected to the scraping assembly and the grinding and polishing assembly; the grinding and polishing assembly is used for grinding the edge of the blasting groove; the profiled groove forming equipment for the fuse contact piece is simple in structure, low in cost and easy to implement, and the problems that in the existing profiled groove machining process, efficiency is extremely low, cost is high, and microcracks are likely to be generated on the surface are solved.
Owner:XIAMEN JINGHAN AUTOMATION CO LTD

Diagnostic Circuit and Method for State of Health of Electric Vehicle Battery System

The present invention provides a diagnostic circuit and method for the health state of an electric vehicle battery system. The diagnostic circuit includes: a battery pack, a motor controller, and a drive motor; the first end of the battery pack is connected to the center line of the drive motor through a pre-charge unit, a diagnostic circuit relay, and a fuse, and the first end of the battery pack is connected to the first end of the motor controller through a main positive relay. The second end of the battery pack is connected to the second end of the motor controller through a negative relay and a sensor module. Each of the three-phase stator windings of the drive motor is respectively connected to each set of inverter bridge power groups in the motor controller module; a control module, a discharge resistor, and a thin-film capacitor are connected to all the inverter bridge power groups to form a diagnostic circuit, which is used to control the on-off of each set of inverter bridge power groups and inject an alternating voltage into the battery system. The present invention can realize the online measurement of the health state of the battery pack without adding additional hardware devices, reducing the diagnostic cost.
Owner:HUNAN INSTITUTE OF ENGINEERING

Omni-directional decoupled ring vector tiltrotor aircraft and control method thereof

The application discloses a kind of high-efficiency omni-directional decoupling annular vector tilt-rotor aircraft and control method thereof, aircraft includes fuselage, fuselage driving gear set, four tilting mechanisms, four annular vector tilt-rotor power groups and electronic equipment etc.Parts.The aircraft described in the application can realize six degrees of freedom omni-directional pose decoupling flight, the attitude angle is omni-directional arbitrary angle in it, including roll angle, pitch angle and yaw angle, can realize arbitrary attitude hovering and flight of aircraft.The aircraft described in the application solves the controllable attitude angle limit of conventional variable tilt-rotor mechanism from structure, improves the ability of complex space activity of aircraft, and fundamentally solves the problem of power offset and power redundancy, reduces energy loss, improves power efficiency, prolongs endurance time, and is suitable for application scenarios requiring strong anti-interference and air physical interaction capability, and has important significance and value in the future.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Scan cell placing method and scan cell placing apparatus

There is provided a scan cell placing method including calculating a weight of each scan cell from a deterministic pattern input to a plurality of scan cells, dividing the scan cells into a coverage group and a power group on the basis of the weights, forming a plurality of power subgroups from a result of providing a pseudo random pattern to scan cells belonging to the power group, and scheduling one or more of the power subgroups to reduce peak power in a test process.
Owner:UI (UNIVERSITY IND FOUNDATION) YONSEI UNIVERSITY

Clutch assembly, in particular for a winding device for wires, tubes and the like

A clutch assembly (10), in particular for a winding device for wires, tubes and the like, which is configured to be mounted between a power group (200) and a driven element (300) is described. The clutch assembly (10) comprises: a first shaft (11) and a second shaft (12) being coaxial and rotational about an axis (X); clutch means (20) interposed between the first and second shafts (11, 12), the clutch means (20) in turn comprising at least one clutch disk (21); an urging and adjusting group (30) for the clutch means (20) configured to press the at least one clutch disk (21) against the first and second shafts (11, 12) with an adjustable elastic force. The urging and adjusting group (30) comprises an endless screw (31) and a gear wheel (32) in mutual screwing engagement.
Owner:RAASM

A breakfast vending machine

The present invention relates to the technical field of vending machines, and particularly to a breakfast vending machine, which includes a machine body and a cabinet door. The cabinet door is rotatably arranged on the machine body. The cabinet door is provided with a touch screen for selection and purchase and a pick-up opening. The machine body is provided with a pick-up device, a heat dissipation and refrigeration device, a storage bin, and a shelf sealing door. The pick-up device and the shelf sealing door are located at the opening of the storage bin. The heat dissipation and refrigeration device is located at the top of the storage bin. The pick-up device includes a fixed frame, a Y-axis lifting wheel set, and an X-axis power group. The fixed frame is a rectangular fixed frame. The X-axis power group is arranged on the fixed frame, and the driving direction of the X-axis power group is arranged along the horizontal length direction of the rectangular fixed frame. Through the cooperation of various devices, the present invention can directly send the items to the pick-up opening, ensuring that the items will not get stuck or be damaged, and is convenient and fast. It can refrigerate and heat the storage bin to ensure that the food in the shelf is maintained at a certain temperature.
Owner:NINGHE TECHNOLOGY SERVICES (NANJING) CO LTD

Control method and control device for a walking device, walking device, and storage medium

ActiveCN117774686BHydraulic pumpPower group
The embodiment of the application discloses a kind of control method of walking equipment, control device, walking equipment and storage medium, belong to equipment control field.Walking equipment includes hydraulic pump group and at least two power groups, hydraulic pump group includes at least two hydraulic pumps, each power group includes sequentially connected first proportional valve, high-speed switch valve and motor, each hydraulic pump is connected each first proportional valve, and the first proportional valve in each power group is also connected with corresponding motor, the control method of walking equipment includes: response receives speed mode instruction, the state of high-speed switch valve is switched;According to received walking instruction, the flow mode of hydraulic pump group is switched;Based on speed mode instruction and the flow mode of hydraulic pump group, determine current speed range;According to current speed range, determine the target speed corresponding to walking instruction;Based on target speed, adjust the opening area of first proportional valve, to control the rotating speed of motor.By switching the state of high-speed valve and hydraulic pump, the speed of walking equipment can be accurately controlled according to actual road conditions.
Owner:ZOOMLION INTELLIGENT ACCESS MASCH CO LTD

A fixed-dose automatic injection pen

The present invention discloses a fixed-dose automatic injection pen, comprising: a pen barrel, a pen body is arranged inside the pen barrel, a pen cover is arranged at one end of the pen body, a pen barrel cap is arranged at one end of the pen barrel, a back cover is arranged at the other end of the pen body, and a protective plug is arranged on the back cover; a PFS sleeve container is arranged inside the pen body, the PFS sleeve container is snap-connected to the pen body, a PFS sleeve is slidably arranged in the PFS sleeve container, a PFS is arranged in the PFS sleeve, a soft protective cap is arranged on the PFS, a secondary power group is arranged between the PFS sleeve and the back cover, a trigger protection mechanism is arranged on the pen body, and the trigger mechanism is located between the pen cover and the PFS sleeve container; after the injection is completed, the trigger protection mechanism will rebound and lock, thereby covering the ejected needle, preventing the needle from being exposed to the outside world and easily causing harm to the user.
Owner:ESC MEDTECH (SUZHOU) CO LTD

Intermittent detector for power group resistance

A method for detecting degeneration intermittency in an electrical connection in a steering system of a vehicle includes using a processor configured to execute instructions: receiving an input indicative of a plurality of measurements of a resistance associated with the electrical connection; calculating at least one adaptive control threshold based on the received input; comparing a first measurement result of the plurality of measurement results with the at least one adaptive control threshold; determining whether the electrical connection has degradation intermittency in response to a comparison between the first measurement and the at least one adaptive control threshold; and performing at least one action in response to determining that the electrical connection has degradation intermittency.
Owner:STEERING SOLUTIONS IP HOLDING CORP

Flexible direct current converter valve side rated voltage configuration method and device, terminal equipment and storage medium

The invention discloses a flexible direct current converter valve side rated voltage configuration method and device, terminal equipment and a storage medium, and belongs to the field of power systems. Constructing a boundary valve side operating voltage set taking the ratio of the valve side rated voltage to the direct current side rated voltage as a variable, and further constructing a third harmonic modulation degree set taking the ratio as a variable; according to the third harmonic modulation degree set, constructing a function relational expression between the maximum third harmonic modulation degree in the third harmonic modulation degree set and the ratio; according to the function relational expression, calculating the value of the ratio when the maximum third harmonic modulation degree is the minimum value, and taking the value as a target ratio; calculating a target valve side rated voltage value according to the target ratio and the direct current side rated voltage; and configuring the valve side rated voltage of the flexible DC converter according to the target valve side rated voltage value. The technical vacancy of valve side rated voltage configuration in the prior art is filled.
Owner:GUANGDONG POWER GRID CO LTD

Planned electric quantity management and control method and system based on multi-index cooperative tracking

The invention discloses a planned electric quantity management and control method and system based on multi-index cooperative tracking, and the method belongs to the technical field of digital management and control of an electric power system, and achieves the collection and standardization of cross-system data through constructing a multi-index system comprising a plan type index, an execution type index, a prediction type index and a deviation type index; a cooperative tracking mechanism is established based on the multi-index system, hierarchical early warning is triggered by comparing execution type, plan type and prediction type indexes in real time, a supervision order is automatically generated and tracked to a deviation closed loop, and full-process management and control are achieved; and finally, a plan decomposition rule and an early warning threshold are optimized through multi-dimensional analysis, and a refined management and control suggestion is output. According to the method, the precision, efficiency and decision support capability of planned electric quantity management and control can be remarkably improved, and the method is suitable for multi-level (group, company and station) electric quantity management and control scenes of a large-scale electric power group.
Owner:GUANGXI GUIGUAN ELECTRIC POWER CO LTD

Spray gun replacing device

The utility model discloses a spray gun replacing device which comprises a lifting machine base, a power set, two lead screws, a gun lifting frame, an air inlet pipe and a gun head sleeve, the power set is installed on the lifting machine base and comprises a turbine worm device and a driving piece, the driving piece is in driving connection with a worm, the worm is meshed with two turbines, the turbines are provided with axial nuts, and the two lead screws are arranged on the gun lifting frame. The nuts are in threaded connection with vertical lead screws, the lower ends of the two lead screws are connected with the gun lifting frame, and the air inlet pipe is installed on the lifting machine base and located between the two turbines.
Owner:LIAONING BAITELADE ENG TECH CO LTD

Power distribution system total factor resource collaborative optimization operation method and system

The invention belongs to the technical field of power system optimization operation, and discloses a power distribution system total factor resource collaborative optimization operation method and system, and the method comprises the steps: reflecting a data flow closed loop through a five-layer structure: a resource layer (data source), a sensing layer (data collection), an AI layer (intelligent processing), an execution layer (control feedback), and an evaluation layer (effect verification); the modeling problem of dynamic change of a real-time topological relation of massive distributed resources is solved, and meanwhile, through spatial scale collaboration of micro-grid autonomous optimization and aggregator global scheduling, strategy conflicts of different time scale optimization targets are eliminated, and through value function decomposition, the problem that global sub-optimization is caused by local optimization is solved; according to the method, a source load active power group prediction system considering the source load time sequence and the spatial distribution rule and a resource optimization strategy considering the real-time performance, the accuracy and the high efficiency of the system are considered at the same time, and a theoretical basis and a calculation framework are provided for cooperative operation of total element resources of the power distribution system.
Owner:CHINA AGRI UNIV +1

Unified power format file generation method and apparatus, electronic device, and readable medium

This invention provides a method, apparatus, electronic device, and readable medium for generating unified power format files, relating to the field of chip technology. The method involves obtaining a target description file for a voltage domain design diagram. The voltage domain design diagram includes at least two module levels, each module level including at least one module, each module corresponding to at least one voltage domain, and each voltage domain corresponding to at least one power group. Based on the target description file, directed trees representing the hierarchical relationships between modules and the correspondence between modules and voltage domains, directed trees representing the correspondence between voltage domains and power groups, and directed trees representing the composition of power groups are created. Based on the directed trees of modules, voltage domains, and power groups, unified power format files corresponding to each module are generated. This reduces implementation costs and improves the efficiency of generating unified power format files.
Owner:LOONGSON TECH CORP

paddle propeller (1200)

1. The name of the design product: paddle propeller (1200). 2. The use of the design product: paddle propeller use: integrated power group provides forward power for ships or water products. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:ZHANJIANG CHUANGTIAN ELECTRONIC TECHNOLOGY CO LTD

Group control method and system of distributed power supply, and medium

The invention discloses a group control method and system for distributed power supplies and a medium. Relates to the technical field of power group scheduling. According to the group control method and system for the distributed power supply and the medium, the method is improved on the basis of an existing hierarchical distribution architecture group dispatching and group control technology, global control over the accessed distributed power supply and local autonomous cooperation of distributed energy resources by a master station are achieved under the condition that the original operation mode of a power grid is not changed, and the distributed power supply group control efficiency is improved. Power flow fluctuation and overvoltage are stabilized in a multi-power-utilization-level partition optimization mode, and safe and stable operation of a large power grid is supported; meanwhile, when the automatic group control strategy is generated, the target power supply is determined and controlled according to the incidence relation between the distributed power supply resources and the different power utilization levels, and the problem of resource allocation conflicts when the different power utilization levels are out of limit at the same time is avoided.
Owner:PANZHIHUA POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER

EPS controller and motor integrated power group structure, assembly method and system

The present invention discloses an EPS controller and motor integrated power group structure, comprising a motor, an EPS controller and a housing; the EPS controller comprises a PCB electrically connected to the PIN female terminal of the motor and electronic components arranged on the PCB, the PCB is assembled on a mounting seat, and a connector is welded on the PCB; the mounting seat is fixed to the motor; the housing is mounted on the mounting seat and is covered outside the PCB; the connector extends out of the housing through a through hole of the housing, wherein the housing, the PCB and the mounting seat are located in the axial direction of the motor. The EPS controller and motor integrated power group structure provided by the present invention integrates the motor and the EPS controller into one, reduces the assembly space required for the assembly of the two, and can adapt to a relatively narrow installation space. The present invention also provides an assembly method of the EPS controller and motor integrated power group structure and an EPS system.
Owner:BEIJING JINGWEI HIRAIN TECH CO INC

Rail wheel device capable of resisting axial force

The utility model relates to a track wheel device for resisting axial force, which comprises an X-axis chassis weldment, an X-axis component and a track group, the track group is placed on the ground, and the X-axis component comprises a double-flange driven wheel group, a single-flange driven wheel group and an X-axis driving wheel group. A double-flange driven wheel set, a single-flange driven wheel set and an X-axis driving wheel set are installed on an X-axis wheel set installation plate of an X-axis chassis weldment respectively, the double-flange driven wheel set, the single-flange driven wheel set and the X-axis driving wheel set are placed on a rail set, and an X-axis motor component, an X-axis driving chain and the X-axis driving wheel set form a power set of an X-axis component. The problems that in the operation process, the upper pipe die of the flatcar advances to impact equipment to generate certain impact force, a bearing is not prone to being damaged, and the service life of the bearing is prolonged; (2) a track constructed on the ground is generally poor in parallelism precision, collision friction is easily generated between the track and the track in the running process, and the axial force borne by a bearing can be effectively overcome;
Owner:SHANGHAITANGSHIJIANHUA PILE CO LTD

Ducted power device, separable distributed ducted aircraft and working method of separable distributed ducted aircraft

The invention relates to a ducted power device which comprises a fan casing, and a ducted power unit, a fixed rudder and a slip flow rudder which are sequentially arranged in a duct of the fan casing from an inlet to an outlet of the duct, and further comprises an undercarriage mounted on the fan casing at the outlet of the duct, and the undercarriage is used for supporting and buffering when the ducted power device vertically ascends and descends; the invention further provides a separable distributed ducted aircraft provided with the ducted power device and two working methods of the aircraft. The aircraft is simple in structure, the front-end aircraft body part, the wing aircraft body part and the duct power system of the aircraft all adopt modular separable design, duct array groups and fixed wings are combined to form a duct tailstock type layout, and the aircraft has two flight modes of hovering flight and high-speed cruising flight; the maneuverability and flexibility of vertical take-off and landing can be guaranteed, and the unmanned aerial vehicle is suitable for executing a long-distance cruise flight task and has the advantages of high efficiency, large load, low cost, high-speed long-endurance flight and the like.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Welding machine for longitudinal metal objects, such as billets

To provide a welding machine of a flash welding type, intended to weld together a tail of a first longitudinal metal product with a head of a second longitudinal metal product along an advancement direction.SOLUTION: A machine comprises: a carriage adapted to slide along an advancement direction (X); a first structure (20) with first gripping means (21, 22); a second structure (30), which is slidably supported by said carriage with second gripping means (31, 32); and a power group (40) which can be supplied with mains voltage and is provided with conductors (210), connected to the first gripping means (21, 22) and the second gripping means (31, 32), respectively. The power group (40) comprises: at least one inverter; at least one transformer; at least one rectifier; and a control unit.SELECTED DRAWING: Figure 1
Owner:SMS GRP SPA