11results about How to "Reliable cooling" patented technology

The invention discloses an injector and an engine, and relates to the technical field of engines, the injector comprises an injector body, the injector body is provided with a gas channel, a plurality of liquid nozzles and a plurality of cooling spray holes, the gas channel penetrates through the injector body in the axis direction of the injector body, the liquid nozzles and the cooling spray holes are arranged at intervals, the liquid nozzles communicate with the gas channel, and the cooling spray holes are communicated with the gas channel; the cooling spray holes are communicated with the combustion chamber and extend towards the inner wall of the combustion chamber; and the fuel outer ring is arranged on the outer side of the injector body in a sleeving mode, a fuel channel is formed in the fuel outer ring and communicates with the liquid nozzle and the cooling spray hole, and fuel in the fuel channel is sprayed into the combustion chamber through the cooling spray hole and then sprayed into the gas channel through the liquid nozzle. Compared with the prior art, fuel is sprayed to the inner wall of the combustion chamber through the cooling spray holes to form a cooling liquid film, reliable cooling is achieved, then the fuel is sprayed into the gas channel through the liquid spray nozzle to be smashed into small liquid drops, and the good fuel atomization effect is achieved.

The utility model belongs to the technical field of servers, and discloses a server with multiple heat dissipation modes, which comprises a server box body, an integrated circuit board, a graphic processing assembly and a storage module, the front end of the server box body is connected with a box door through a hinge, the right side end of the box door is connected with a lock catch, the integrated circuit board is fixed on the inner wall of the server box body, and the graphic processing assembly is connected with the integrated circuit board. A graphic processing assembly is installed at the front end of the integrated circuit board, a storage module is connected to the right side of the integrated circuit board, a cooling fan is arranged on the left side of the server box body, and a flow guide fan is arranged on the right side of the server box body. The server is provided with multiple heat dissipation modes; in order to meet the requirement for stable operation of equipment under high-load operation, a multi-heat-dissipation mode combining air cooling and water cooling is adopted in the design innovation, independent temperature control over the mainboard and the image processing assembly can be achieved, stable operation during high-load operation is kept, the multi-heat-dissipation structure operates relatively independently, practicability and reliability are achieved, heat dissipation can be conducted in a targeted mode, and the service life of the equipment is prolonged. And the heat dissipation effect is more ideal.

The utility model discloses a compressor cooling pipeline structure of an air suspension centrifugal water chilling unit, which belongs to the technical field of refrigeration equipment and comprises a condenser, an economizer communicated with the condenser, an evaporator communicated with the economizer, a compressor communicated with the evaporator, and the compressor communicated with the condenser to form a refrigeration cycle loop. The cooling branch comprises a first pipeline, one end of the first pipeline communicates with the condenser, the end, away from the condenser, of the first pipeline communicates with the compressor, the compressor communicates with a second pipeline, and the end, away from the compressor, of the second pipeline communicates with the evaporator, so that the compressor is cooled. The system is simple in structure, complex external cooling equipment and auxiliary systems such as a cooling tower and a cooling water pump are not needed, the number and complexity of system components are reduced, the fault risk and maintenance cost are reduced, and the reliability and operation efficiency of a unit are improved.

This invention relates to the field of photovoltaic cable manufacturing technology, and more particularly to a solar photovoltaic cable and its manufacturing process. The process includes: processing a tin-plated cable core according to a pre-process; extruding the tin-plated cable core through an extruder with preset extrusion parameters to perform a first functional layer extrusion; pre-cooling the extruded cable; determining a second preset pulling speed for the second functional layer extrusion process based on a first excess value when the functionality is deemed unqualified, and further determining a second preset pulling speed based on a first excess value when the functionality is deemed unqualified after the pre-cooling stage; and adjusting the cooling temperature based on a second excess value when the cooling is deemed unqualified, and based on a second excess value when the cooling is deemed unqualified, after the cooling is deemed unqualified. This invention can comprehensively assess the manufacturing quality of photovoltaic cables from multiple dimensions and deeply refine it from a single dimension, and automatically feed back and adjust the parameters for manufacturing photovoltaic cables to improve the stability of the performance and the stability of the manufacturing process of photovoltaic cables.

The invention relates to the technical field of magnetic suspension phase change air conditioners, in particular to a load matching control method for an evaporative cooling magnetic suspension phase change air conditioner, which comprises the following steps: acquiring outdoor wet bulb temperature and system refrigeration load, and comparing with a preset threshold to start different working modes; whether refrigeration output is matched with the requirement or not is judged by comparing the actual temperature with a temperature threshold value in different working modes; if not, calculating the initial adjusting quantity of the key component according to the temperature difference; the current of the key component is sampled in real time, the mutation rate is calculated and compared with a threshold value, the initial adjusting quantity is corrected according to a comparison result, and therefore adjustment and control over all the components are completed. According to the method, multi-dimensional fusion and self-adaptive matching of the load demand, the environmental condition and the equipment state are realized, and the operation risk caused by too fast adjustment or equipment abnormity is effectively avoided while the energy efficiency of the system is improved.

The application relates to an engine rotating opposed-piston shaft cooling system and an engine, the shaft cooling system comprising a power output shaft and a nested shaft nested with the power output shaft, the power output shaft being provided with a power output shaft oil inlet channel and a power output shaft oil outlet channel along an axis, and the power output shaft being provided with a power output shaft oil inlet manifold and a power output shaft oil outlet manifold corresponding to the power output shaft oil inlet channel and the power output shaft oil outlet channel, the power output shaft oil inlet manifold and the power output shaft oil outlet manifold being provided with different cross sections and being provided with a power output shaft first piston and a power output shaft second piston; the nested shaft being provided with a nested shaft oil inlet channel and an oil outlet channel along an axis, and the nested shaft being provided with a nested shaft oil inlet manifold and a nested shaft oil outlet manifold corresponding to the nested shaft first piston and the nested shaft second piston; and the nested shaft oil inlet ring groove and the nested shaft oil outlet ring groove corresponding to the oil inlet oil pad and the oil outlet oil pad, and forming a nested shaft oil inlet main channel and a nested shaft oil outlet main channel.

The radial synthesis radiator comprises an upper radiator fixing plate, an upper radiator baffle plate, a lower radiator baffle plate, a lower radiator fixing plate, connecting rods connected to the upper radiator fixing plate, the upper radiator baffle plate, the lower radiator baffle plate and the lower radiator fixing plate, and a connecting rod connected to the upper radiator baffle plate, the upper radiator baffle plate, the lower radiator baffle plate and the lower radiator fixing plate, the radiator modules are arranged on the peripheral edges of the upper radiator fixing plate, the upper radiator baffle, the lower radiator baffle and the lower radiator fixing plate in an annular array mode, one ends of the radiating pipes are arranged in the radiator modules, and the power amplifier installation bases are fixed to the other ends of the radiating pipes. And the power amplifier is fixed on the power amplifier mounting seat and transfers heat to the radiating pipe and the radiator module. By means of the scheme, the LED lamp has the advantages of being simple in structure, reliable in heat dissipation and the like.

This invention relates to the field of fuel cell technology and discloses a fuel cell heat dissipation system and control method for active balancing heat dissipation in unmanned aerial vehicles (UAVs). The fuel cell heat dissipation system includes a UAV heat dissipation assembly and an active balancing control subsystem. The UAV heat dissipation assembly includes a liquid cooling circuit and rotors disposed at the tips of multiple heat dissipation arms. The liquid cooling circuit includes coolant channels disposed inside the multiple heat dissipation arms. The coolant channels include in-arm liquid inflow pipes and in-arm liquid return pipes. Multiple in-arm liquid inflow pipes are arranged close to the inner side of the heat dissipation arms, and the multiple inflow pipes converge at the tips of the heat dissipation arms and connect to the in-arm liquid return pipes. The inflow pipes have an S-shaped variable diameter pipe structure, and their arrangement density gradually decreases from the root to the tip of the heat dissipation arm. The active balancing control subsystem includes a sensor group, an actuator group, and a controller. This invention can improve the reliability and flight safety of the UAV thermal management system.

The invention relates to a cold plate for a power electronic system. An energy management unit (EMU) is disclosed. The EMU includes: a cold plate sandwiched between a first printed circuit board (PCB) and a second PCB, the cold plate including one or more magnetic elements; wherein the cold plate is configured to cool both the first PCB and the second PCB.

A bus assembly includes a first bus, a second bus, an isolation plate, and a heat pipe extending vertically. In a left-right direction perpendicular to the vertical direction, the isolation plate is disposed between the first and second bus to electrically isolate them. The heat pipe is attached to the first and second bus and allows liquid to pass through for heat dissipation. A silicone thermally conductive gel and an insulating layer are disposed between the first and second bus and the heat pipe. The insulating layer is a polyimide film or graphene composite nanoceramic. In this invention, a polyimide film or graphene composite nanoceramic is disposed between the heat pipe and the bus, along with silicone thermally conductive gel. The silicone thermally conductive gel can fully fill the gap between the bus and the heat pipe, thereby effectively conducting the heat generated by the bus to the coolant in the heat pipe for heat dissipation, and it is pressure-resistant and reliable.

The invention discloses a star finder with an efficient heat dissipation and electromagnetic shielding structure, and relates to the technical field of star finders. A built-in electrical element and an integrated assembly are arranged in the star finder body, a shielding laminated layer with an electromagnetic shielding effect is further arranged on the inner wall of the star finder body, broadband electromagnetic interference suppression is achieved through a double-layer composite structure of the shielding laminated layer and a cross-core filtering assembly, and it is ensured that a control circuit works stably; by means of magnetic attraction linkage of the electromagnetic propelling assembly, the permanent magnet plate and the blocking plate, airflow is started according to needs, and control is stable and reliable; the controller generates an alternating magnetic field according to a set time sequence to drive the permanent magnet plate to reciprocate to form forced convection, and energy-saving heat dissipation is achieved. The Kalman filtering controller and the sensor array collect temperature, pressure and flow data in real time, precise closed-loop thrust control is achieved through recursion estimation, and therefore cooperative operation of waste heat driving, intelligent heat dissipation and precise posture adjustment is completed on the premise that electromagnetic compatibility is guaranteed.