112 results about "Free flow" patented technology

The invention discloses an incoming flow Mach number control method for a transient transonic wind tunnel airfoil test, and belongs to the technical field of wind tunnel airfoil tests. The problem that in the prior art, a traditional Mach number control method adopting a conventional plenum chamber reference point is difficult to be suitable for carrying out an airfoil test in a transient transonic wind tunnel is solved. According to the method, a standard airfoil model is selected, simulation calculation is carried out, and distribution of Mach numbers in the incoming flow direction of the airfoil model in the free flow state, namely the wind tunnel wall-free state, is obtained; s2, performing simulation calculation in a three-dimensional full-simulation state on the wind tunnel by adopting a standard airfoil model which is the same as the step S2, acquiring axial Mach number distribution of side wall center lines of test sections with different opening-closing ratios of the wind tunnel according to the opening-closing ratios, and calculating the axial Mach number distribution of the side wall center lines of the test sections with different opening-closing ratios; and analyzing to obtain a Mach number which is controlled in the incoming flow direction and is 3 times the chord length of the airfoil profile from the front edge of the airfoil profile, and carrying out a standard airfoil profile model wind tunnel test. According to the invention, the accuracy of simulating the incoming flow Mach number and the opening-closing ratio of the test section is improved, and the method can be applied to the temporary impulse transonic wind tunnel airfoil test.

The invention discloses a microfluidic pre-focusing chip, and belongs to the technical field of microfluidics, the chip comprises a piezoelectric substrate, an interdigital transducer and a micro-cavity, the micro-cavity is bonded on the piezoelectric substrate, the micro-cavity comprises a main cavity channel, two ends of the main cavity channel are respectively provided with at least one sample input port and at least one sample output port, and the main cavity channel is connected with the interdigital transducer. The interdigital transducers are arranged on the piezoelectric substrate, located on the two sides of the main cavity channel respectively and arranged in the direction perpendicular to the flowing direction of a sample in the main cavity channel, the microcavity further comprises side cavity channels distributed on the two sides of the main cavity channel, filling liquid injection ports are formed in the side cavity channels, filling liquid is a liquid photocurable material, and the filling liquid injection ports are communicated with the main cavity channel. Meanwhile, the invention further discloses a design, manufacturing and application method of the chip, and the two-stage functions of pre-focusing and concentration can be effectively achieved under the sheath flow-free condition.

The application discloses a wind turbine wind parameter data correction method, device, equipment and medium, comprising: simulating multiple working conditions according to basic parameter information of a wind turbine, determining first simulation wind parameter data of a free flow position and second simulation wind parameter data of a target position point under each working condition based on simulation results, and determining a first correction parameter based on the first simulation wind parameter data and the second simulation wind parameter data. First actual wind parameter data of the free flow position and second actual wind parameter data of the target position point under each working condition are obtained, and a second correction parameter is determined. The first correction parameter is corrected based on the second correction parameter to determine a corrected first correction parameter. The wind parameter data under the target working condition is corrected according to the corrected first correction parameter. That is, the correction parameter obtained according to the actual running working condition is used to correct the simulation obtained correction parameter, so that the wind parameter data obtained according to the correction parameter is more accurate subsequently.

The invention relates to the technical field of intelligent traffic management systems, in particular to an appointment payment method based on expressway free flow toll collection. An existing free flow charging technology mainly adopts a postmortem fee deduction mode, the problem of fee deduction failure caused by insufficient account balance, payment channel faults and the like exists, then arrearage, overdue money and follow-up cost recovery are generated, and user experience and charging management efficiency are seriously affected. According to the invention, through establishing a whole-process management mode of beforehand reservation-in-event verification-after-event settlement, a user can set a travel plan and select a reservation payment mode through a terminal before travel, and the system generates an estimated cost based on a built-in charging standard; in the vehicle passing process, the road side sensing data and the vehicle positioning data are fused, and the consistency of the actual driving path and the reserved path is accurately verified; and finally, executing corresponding fee deduction operation according to a verification result.

A fluid compressor system has a scavenge loss limiter that increases the efficiency of the fluid compressor system by reducing the compressed working fluid recirculated into the airend through a scavenge flow. The scavenge loss limiter includes a scavenge hole positioned at a discharge end face of a rotor cavity of the compressor housing. As a rotor of the compressor system rotates, the rotor may intermittently restrict the free-flowing scavenge flow returning from a lubricant separation tank. The rotor may be a male rotor having a plurality of male lobes. As the discharge end clearance between the rotor and the discharge end face is tightly controlled and monitored, a better control of the scavenge flow returning to the rotor cavity is achieved.

The present application relates to the technical fields of anti-choking drinking water control, and provides an anti-choking drinking water control method and device, which comprises a cup body, a cup cover connected to the top side of the inner wall of the cup body through a sealing ring, an adjusting cavity fixedly connected to the bottom end of the cup cover, an extension pipe connected to the bottom end of the adjusting cavity through a splicing assembly, a gravity ball fixedly connected to the bottom end of the extension pipe, a through hole for ensuring water flow on the outer wall of the gravity ball, a suction nozzle fixedly connected to the top end of the cup cover, a rubber pad slidingly connected to the inner wall of the adjusting cavity, and a connecting pipe fixedly connected to the top end of the rubber pad. Through the threaded transmission cooperation of the spiral sleeve and the spiral rod, the rubber pad is vertically slid in the adjusting cavity, and then the blocking ball is opened under the negative pressure generated by the appropriate suction force, the waterway is opened under the negative pressure generated by the appropriate suction force, and the blocking ball quickly falls to block the bottom end of the adjusting cavity when there is no negative pressure, so as to avoid the free flow of residual water and realize the flexible adjustment of the suction force.

This utility model relates to the field of fertilizer and water transportation technology, and discloses a distribution device for bio-organic fertilizer processing, including a cylinder and a guide channel. The guide channel is provided at the top of the outer wall of the cylinder, and a partition is provided inside the cylinder. A through hole is opened on the front surface of the partition. A grooved plate is fixedly connected to the top of the partition, and a pair of insert rods are fixedly connected to the bottom of the grooved plate. This distribution device for bio-organic fertilizer processing, through the cooperation of the cylinder, guide channel, partition, through hole, grooved plate, insert rods, and insert hole, allows the cylinder to be installed in a fertilizer and water transport vehicle. When the cylinder is filled with an appropriate amount of fertilizer and water and is being transported, the partition divides the interior of the cylinder into two areas. The through hole allows the flow of fertilizer and water on both sides of the partition, restricting the free flow of fertilizer and water. This helps reduce large swings caused by the large inertia of the fertilizer and water, thereby improving the stability during fertilizer and water transportation and significantly reducing the probability of production accidents caused by fertilizer and water splashing.

Techniques described herein involve an electronics-free downhole flow sensor. For example, a system can include a receiver positioned at a surface of a wellbore. A flow sensor can be positioned downhole in the wellbore. The flow sensor can include a wire positioned within a flow path of downhole fluid in the wellbore. The wire can oscillate based on flow of the downhole fluid. The flow sensor can also include a variable reluctance sensor that can detect an electrical signal that is generated by oscillation of the wire. The variable reluctance sensor can transmit the electrical signal to the receiver. The receiver may determine a resonant frequency based on the electrical signal and may determine a fluid velocity of the downhole fluid based on the resonant frequency.

The invention relates to a carburettor and to a two-stroke engine with a carburettor, the carburettor having a carburettor body in which an air intake channel section is configured. A throttle flap for controlling the free flow cross-section of the air intake channel section is pivotably supported in the carburettor body on a throttle shaft. The air intake channel section has a first longitudinal centre axis in the region of the throttle shaft. The throttle flap has a first end position and a second end position, in which the throttle flap releases a greater flow cross-section of the air intake channel section than in the first end position. Arranged upstream of the throttle shaft is a partition wall section, against which the throttle flap lies in the second end position. Upstream of the partition wall section is provided a choke flap, which can be pivoted between a first end position and a second end position. The throttle flap and the choke flap overlap in the direction of the first longitudinal centre axis in their second end positions. The carburettor is provided for a two-stroke engine.

The invention relates to a set of separator inserts (II, II-a, II-b,...) for a separator having a frame (I) on which one of the separator inserts (II, II-a, II-b,...) of the set of separator inserts (II, II-a, II-b,...) is exchangeably arranged at a time, wherein each of the separator inserts is designed to separate a free-flowing suspension (S) in a centrifugal field into at least two phases (LP, HP) of different densities and forms a pre-assembled exchangeable unit for insertion into the frame (I) of the separator and has at least the following: a rotor (2) which can be rotated about an axis of rotation (D) during operation and has a drum (3) that can be rotated during operation and that has one or more openings; a separating means (6) arranged in the drum (3); an inflow and outflow system having at least one inlet (311, 312) for a free-flowing suspension to be processed and having two or more outlets (313, 314) for discharging the centrifugally separated phases from the drum (3), wherein at least two separator inserts (II, II-a, II-b,...) of the set have different inflow and outflow systems (31), and / or at least two separator inserts (II, II-a, II-b,...) of the set have drums (3) having drum casings with different geometries.

The application provides a nutrition pump, which comprises a pump main machine, a first driving mechanism, a switching piece and an anti-falling piece arranged on the pump main machine; the first driving mechanism is connected with the switching piece and drives the switching piece to move between at least two positions; the first driving mechanism is connected with the anti-falling piece and drives the anti-falling piece to move between at least two positions. The nutrition pump provided by the application can lock the fluid conveying mechanism on the pump main machine, can avoid abnormal falling of the fluid conveying mechanism and can prevent the free flow phenomenon from occurring.

The application relates to a liquid sheet injection system and method for X-ray free electron laser experiments, which comprises a pneumatic nozzle device, a flow control device, a signal acquisition device and a vacuum device; the pneumatic nozzle device and the signal acquisition device are respectively arranged in the vacuum device, the pneumatic nozzle device comprises a tube assembly, a gas capillary and a liquid capillary are respectively arranged in the tube assembly, and the gas capillary and the liquid capillary are connected with the flow control device; the end of the liquid capillary comprises two symmetrically arranged flow guide inclined surfaces, two symmetrically arranged abutting inclined surfaces and a bottom surface, the flow guide inclined surfaces and the abutting inclined surfaces are alternately distributed around the bottom surface, and a first outlet is arranged on the bottom surface; a gas micro-flow channel is formed between the end inner wall of the tube assembly and the flow guide inclined surface, and a second outlet is arranged at the end of the tube assembly. The application utilizes the compression and shearing effect of high-speed gas on liquid to generate a free-flowing liquid sheet with a sub-micron thickness under vacuum.

The utility model discloses a dewatering device for a flotation plate-and-frame filter press, and belongs to the technical field of coal dressing filter pressing. Angle blowing air inlet holes are formed in the two ends of the upper sides of a thrust plate and a pressing plate of the filter press, angle blowing air supply pipelines are connected to the angle blowing air inlet holes of the thrust plate and the pressing plate, and air blowing pneumatic valves are arranged on the angle blowing air supply pipelines; angle blowing air inlet holes are also formed in the two ends of the upper sides of the diaphragm plate and the compartment plate between the thrust plate and the pressing plate, so that an internal filtering structure is completely broken through and is used for introducing secondary inlet air; the corner blowing air supply pipeline is connected with a corner blowing free flow drainage pipe, and the corner blowing free flow drainage pipe is connected with a drainage pneumatic valve; drain holes are formed in two ends of the lower sides of the diaphragm plate and the compartment plate; the problems of high moisture content, low efficiency and high labor intensity of a common plate and frame type membrane filter press are solved.

The invention relates to the technical field of wind power generation, and discloses a wind generating set upstream and downstream whole-process full-space-time turbulent wind calculation method which comprises the following steps: carrying out regional division on a wind field of a target wind generating set; obtaining an upstream free incoming flow area of the fan, a near-field wind wheel front area of the fan, a near-field wind wheel rear area of the fan and a downstream wake flow area of the fan; respectively establishing an instantaneous wind speed field of a free incoming flow region, an instantaneous wind speed field of a region in front of a near-field wind wheel of a fan, an instantaneous wind speed field of a region behind the near-field wind wheel of the fan and an instantaneous wind speed field of a downstream wake flow region of the fan; and performing interpolation weighting processing on the instantaneous wind speed field of the free incoming flow area, the instantaneous wind speed field of the area in front of the wind wheel, the instantaneous wind speed field of the area behind the wind wheel and the instantaneous wind speed field of the wake flow area at the downstream of the fan to generate an upstream and downstream whole-process full-space-time turbulent wind field of the wind generating set. The invention provides a full-process and full-space-time turbulent wind high-precision calculation method, which is beneficial to precise design and optimization of a wind generating set.

The application discloses a kind of temporary shock cross-speed wind tunnel airfoil test's Mach number control method, belong to wind tunnel airfoil test technical field.The existing technology is solved in traditional Mach number control method using conventional chamber reference point, it is difficult to be applicable to the problem that temporary shock cross-speed wind tunnel carries out airfoil test;The application selects standard airfoil model, carries out simulation calculation, obtains the distribution of airfoil model Mach number in free flow, i.e.no wind tunnel wall state;Using the same standard airfoil model as step S2, simulation calculation is carried out to the three-dimensional full simulation state of wind tunnel, according to the opening-closing ratio, the axial Mach number distribution of wind tunnel different opening-closing ratio test section side wall center line is obtained, in wind tunnel, by analysis, the Mach number at 3 times airfoil chord length from the leading edge of airfoil in flow direction is controlled to carry out standard airfoil model wind tunnel test.The application improves the precision of simulated flow Mach number and test section opening-closing ratio, and can be applied to temporary shock cross-speed wind tunnel airfoil test.

The invention discloses a rapid flow field prediction method based on cooperation of data driving and CFD calculation, and belongs to the technical field of numerical simulation of aircrafts. Extracting geometric features of the airfoils in the data set; reducing dimensions of flow field variables in the data set; building an off-line data driving model of the airfoil flow field prediction task; an off-line data driving model is adopted to provide an initial solution for a high-order discontinuous finite element method (DGM) of airfoil streaming simulation; and iterating to a steady state based on an initial flow field provided by a data driving model by adopting a high-order discontinuous finite element method. The airfoil flow field rapid prediction method based on cooperation of data driving and CFD calculation is suitable for rapid evaluation of aerodynamic performance of an aircraft airfoil design link, and the simulation efficiency of an original discontinuous finite element method based on far-field free flow initialization can be improved by about three times; and the method is hopefully expanded and applied to rapid pneumatic evaluation of the whole aircraft.

The invention relates to an optimization design method and system for a Venturi tube contraction section under a free flow condition and a storage medium, and belongs to the technical field of fluid machinery and stirring equipment. The technical problem to be solved is to accurately solve the hydraulic performance of the contraction section of the Venturi tube under the free flow condition, establish a function relationship between an acceleration ratio and a contraction ratio and solve the optimal contraction ratio. The technical scheme is characterized in that the diameter range of an inlet of the Venturi tube is determined; establishing a fluid computational domain model, wherein an inner side outlet and an outer side outlet of the Venturi tube are respectively set as independent pressure outlet boundaries; cFD numerical simulation is carried out on contraction sections of the Venturi tube under different contraction ratios based on a fluid computational domain model, and inlet flow velocity data and throat flow velocity data are obtained; calculating an inlet reduction ratio K1 and an in-tube speed-up ratio K2, and performing regression analysis fitting to obtain a function relation expression of K1 and K2 respectively changing along with the shrinkage ratio; and solving the optimal shrinkage ratio under the target condition according to the function relational expression, and outputting a size parameter.

The invention discloses a traffic flow organization method of traffic flow array and signal cooperation based on lane control and management. The method comprises the following steps: 1) planning a road section; performing function division and arrangement on the road sections from the intersection to the rear according to the sequence of the dynamic green waiting road section, the static red waiting road section and the free flow road section; 2) signal and traffic flow cooperative control; 2.1) in the red light period, vehicles on the dynamic green waiting road section run slowly according to a preset control speed; the static red waiting road section conveys the grouped vehicles to the dynamic green waiting road section and receives the vehicles on the free flow road section; vehicles on the free flow road section enter a team queue when vacancies exist on the static red waiting road section, otherwise, the vehicles are queued; 2.2, in the green light period, vehicles on the dynamic green waiting road section rapidly pass through the intersection at the free flow speed, the dynamic green waiting road section is emptied, the static red waiting road section starts to queue up and form a team according to the direction lanes, and vehicles on the free flow road section enter the static red waiting road section.

The utility model discloses a boning flat file internally provided with a liquid channel. The boning flat file comprises an outer tube, a first connecting pipe and an inner pipe are arranged at one end of the outer pipe, and the inner pipe is arranged in the outer pipe; a liquid channel boss is arranged on one side of the inner pipe; the middle pipe is positioned between the inner pipe and the outer pipe; one end of the middle pipe is connected with one end of the first connecting pipe; the positioning pin is arranged at the other end of the middle pipe and is used for fixing the connection between the outer pipe and the middle pipe; the flat file assembly is connected with the first connecting pipe; and the driving shaft is positioned in the inner tube and is connected with the flat filing assembly. The driving shaft is sleeved with the inner pipe, the inner pipe is sleeved with the middle pipe, the middle pipe is sleeved with the outer pipe, the inner pipe, the middle pipe and the outer pipe jointly form a smooth liquid channel, and it is ensured that liquid can freely flow in the channel. In addition, the outer pipe and the middle pipe are stably connected through the positioning pin, the stability of the structure is enhanced, and installation and maintenance are convenient.

A novel online shielding tool, which comprises a material passing groove, a glass rod, a pull rod and a positioning adjusting assembly. The glass rod is arranged in the material passing groove, and the top of the glass rod is higher than the bottom plane of the groove, so that the material belt is lifted to form a suspended passage, the bidirectional free flow of the electroplating solution is promoted, and the thickness difference of the plating layer on both sides of the material belt is eliminated; the pull rod passes through the first guide groove of the horizontal support and the second positioning hole of the sliding block in sequence, is threadedly connected with the rotating disc, and realizes high-precision lifting adjustment; the first fastening bolt locks the height of the pull rod, the second fastening bolt is fixed to the horizontal support after being guided through the second guide groove of the sliding block, and double displacement limiting control is formed; the horizontal support is overlapped with the side wall of the electroplating groove through the clamping grooves at both ends, the corrosion-resistant glass fiber groove body is combined with the titanium alloy pull rod, and the long-term operation stability of the tool is ensured. The utility model realizes accurate positioning of the shielding area without interrupting production, and significantly improves the uniformity of the plating layer and the product consistency.

This invention discloses a biaxial trough solar collector and its usage method, relating to the field of solar energy technology. The invention includes a solar collector, a biaxial support, an energy distribution mechanism, a heat collection mechanism, and a steam guiding mechanism. The invention incorporates a distribution component within the heat collection mechanism. Equally spaced partition meshes divide the inner cavity of the inner heat collection tube into multiple independent areas, segmentally blocking the free flow of the evaporating liquid. Combined with a water outlet trough on the bottom water pipe for continuous leakage, the evaporating liquid is absorbed by the honeycomb sleeve and held in a specific position, exhibiting a "quasi-solid" distribution. This design effectively overcomes the problem of uneven distribution caused by gravity-induced liquid accumulation at lower elevations when the collector tilts due to angle adjustments of the biaxial support, ensuring uniform heat exchange efficiency of the heat collection tube at different angles.

The invention relates to the technical field of valves, in particular to a dual-mode valve structure. Comprising a pipeline body, a first valve assembly, three second valve assemblies, an outlet flange and an inlet flange, and the first valve assembly and the three second valve assemblies are arranged on the pipeline body; the first valve assembly comprises a first valve shell, a first valve element, two first bearings, two first sealing pieces, an impurity smashing unit and a first valve rod, the first valve shell is connected with the pipeline body, the first valve element is rotationally arranged in the first valve shell and located between the two first sealing pieces, and the first valve rod is connected with the first valve element; the first valve element is provided with a plurality of filtering holes, the impurity smashing unit is connected with the first valve shell and located below the first valve shell, and through the arrangement of the structure, the effects that the filtering mode and the free circulation mode can be flexibly switched according to the working condition of a medium, the switching process is stable and free of impact, and the automatic impurity smashing function is achieved are achieved.

The silo double-pipe folding type distributing device, multi-layer discharging silo and operation method comprise a grain conveying pipe, a silo, a transfer silo, a central grain inlet pipe, a supporting sleeve and a folding distributing chute, the transfer silo is provided with a grain inlet pipe valve, a top distributing pipe and a top distributing pipe valve; a plurality of in-silo feeding pipes are arranged on the central grain inlet pipe at intervals, the in-silo feeding pipes are provided with discharging valves, distributing pipes and folding distributing chutes; the folding distributing chutes are arranged below the pipe mouths of the distributing pipes and are installed on the outer wall of the supporting sleeve through supports. By controlling the top distributing pipe valve, the grain inlet pipe valve, the discharging valve and the folding distributing chute, the grain is kept in a limited flow during the whole grain inlet process and free flow is not generated. Meanwhile, the grain inlet is from the bottom of the silo to the upper surface gradually, so that the occurrence of grain grading is reduced.

The invention belongs to the technical field of electric appliance power supply, and provides an electric appliance power supply system and a control method thereof, and the system comprises a power generation module, an inversion module, and an energy manager. The input end of the energy manager is connected to the power generation module, and the output end is connected to the DC bus; the inversion module comprises a rectification module and an inversion module; the input end of the rectification module is connected to a commercial power grid so as to rectify AC commercial power into DC voltage and output the DC voltage to the DC bus. The input end of the inversion module is connected to the DC bus, and the output end outputs AC to supply power to load electric appliances. The clean energy power generation system has the advantages that in the power supply system, the voltage of the direct-current bus is inverted and converted into alternating current through the inversion module to be output to the load electric appliance, so that existing household life electric appliances can be directly connected into the clean energy power generation system, and the improvement cost of the household electric appliances does not need to be increased. And the energy can freely flow in the formed clean energy micro-grid, so that the domestic electric appliances can fully use the clean energy.

A solid-wall screw centrifuge, which serves to clarify a free-flowing suspension S in a centrifugal field into a solid phase (SP) and into one or more liquid phases (FP) and comprises at least: a drum (2) rotatably mounted about an axis of rotation (D) and a screw (3) arranged in the drum (2) rotatably mounted about the axis of rotation, with a screw hub (308) and a screw helix (309) projecting radially from it, wherein a rotatable or non-rotatable feed pipe (5) is provided for supplying the suspension to a distributor (6) rotatable together with the screw (3), wherein the distributor (6) serves to redirect the suspension from the axial direction into the radial direction and to accelerate it circumferentially during operation and to direct it into a separation chamber (TR) between the screw (3) rotating during operation and the drum (2) rotating during operation.wherein the distributor (6) is inserted into the screw (3) and has a radial channel for dividing the flow of the suspension to be supplied, wherein the distributor (6) is designed as an interchangeable tubular distributor sleeve (61) which can be inserted radially into a radial opening (310) in the screw for assembly and can be removed radially from the radial opening (310) for disassembly.

The invention provides an AIS data-based busy water area macroscopic fundamental diagram acquisition method and system, an electronic device and a storage medium, and the method comprises the steps: constructing a water area macroscopic fundamental diagram with a water area ship cumulant as a state index and a water area boundary outflow as a performance index through mining ship automatic identification system data; forming a time sequence capable of reflecting the number of ships in the water area and the outflow efficiency; associating the two sequences to generate scatter data representing a macroscopic relationship; automatically dividing the scattered points into clusters corresponding to three typical states of free flow, saturation flow and congestion flow by using a clustering analysis technology; piecewise linear fitting is carried out on data in each state cluster, and a trapezoidal macroscopic fundamental diagram model with a clear ascending section, a stable section and a descending section is constructed; and a series of key characteristic parameters such as a critical inflection point of sign state transition, saturation flow representing the maximum traffic capacity and a slope reflecting the efficiency change rate are extracted, so that conversion from original data to a macroscopic cognitive model is completed.

The invention relates to the technical field of coating devices, and discloses new energy battery aluminum foil surface treatment equipment based on a coating spraying composite structure, the new energy battery aluminum foil surface treatment equipment comprises an upper die head and a lower die head which are symmetrically arranged up and down, baffles are arranged on the two sides of the upper die head and the lower die head, and a gasket is arranged in a gap between the upper die head and the lower die head; the ends, away from the gasket, of the upper die head and the lower die head are fixedly connected with a discharging plate. The upper die head, the lower die head and the gasket jointly define a runner, the gasket comprises a blocking piece, and the other end of the blocking piece is fixedly connected with a guide plate. The mold is provided with the flow channel, the unstable elastic recovery and free flow of slurry after mold stripping are core reasons for causing coating stripes, edge defects and bubbles, the flow channel is defined by a blocking piece of a gasket, a guide plate, a first inclined plate, a second inclined plate, an upper mold head and a lower mold head, the flow channel is divided into two sections of a shearing cavity and a relaxation cavity, and through continuous control of pre-shearing-stress relaxation, the thickness of the flow channel is smaller than that of the flow channel, and the thickness of the flow channel is smaller than that of the flow channel. And elastic recovery is inhibited fundamentally.

Housing (10) for receiving a gearbox (11), for example housing (10) of an electric drive (1) comprising an electric machine (12), a gearbox (11) and optionally an inverter (13), wherein the housing (10) has an inlet (21) for the entry of coolant into the housing (10) and an outlet (23) for the exit of coolant from the housing (10) and has a cooling channel path (22) that runs through the housing (10) and that fluidically connects the inlet (21) with the outlet (23) in order to be flowed through in its longitudinal direction by a cooling fluid, characterized in that an insert (80) is arranged in the cooling channel path (22) which reduces the free flow cross-section of the cooling channel path (22) at least section by section.

The application discloses a kind of in-transit dynamic weighing data fusion free flow method of overloading, comprising the following steps: S1, the high-speed dynamic weighing system and in-transit weighing data fusion overloading platform are arranged;S2, weighing system records weighing data and weighing time, portal system sends vehicle information to weighing system;Weighing system carries out fusion to vehicle information and weighing data at the same time in-transit weighing, and only uploads the weighing data of truck type to overloading platform;S3, in-transit weighing data fusion overloading platform carries out fusion correction to heavy data, and uploads fusion result to charging system;S4, charging system issues data to adjacent toll station according to self rules.The application realizes in-transit weighing, compares in-transit weighing data with exit weighing data at exit, focuses on abnormal comparison result, identifies the behavior of midway cargo transfer, and can achieve the purpose of overloading and auditing in free flow mode.