1721results about "Engine cooling apparatus" patented technology

The invention relates to an axial flux electric pump. An axial magnetic flux electric pump having an axially symmetrical structure includes: a stator assembly configured to generate an axial magnetic flux; the rotor driver assembly and the stator assembly are coaxially arranged, the rotor driver assembly can rotate around the axis under the action of the axial magnetic flux, and when the axial magnetic flux electric pump works, the rotor driver assembly drives fluid and bears opposite fluid acting force; wherein the axial symmetrical structure is realized by one of the following two modes: the stator assembly comprises a first stator and a second stator which are respectively positioned on two axial sides of the rotor driver assembly; or, the rotor driver assembly comprises a first rotor driver and a second rotor driver which are located on the two axial sides of the stator assembly respectively.

The utility model relates to the technical field of power batteries, and discloses a heating and cooling system integrated structure and a battery thermal management system, the heating and cooling system integrated structure comprises a refrigeration base material, a first insulating film, a heating core body and a second insulating film, the first insulating film is attached to the refrigeration base material, the heating core body is attached to the first insulating film, and the second insulating film covers the heating core body. As only one layer of insulating film is arranged between the heating core body and the refrigeration base material, compared with the prior art, the heat transfer medium between the heating core body and the refrigeration base material is less, and the heat transfer efficiency is high.

An engine system can comprise an engine and a cooling module assembly which comprises a radiator. In some examples, an assembly, such as the cooling module assembly, can include a radiator and a fan shroud and screen assembly arranged at a rear side of the radiator. The fan shroud and screen assembly includes a screen and first and second shroud portions coupled to and around the screen, where the first and second shroud portions and the screen form a cavity, and where the first and second shroud portions are directly coupled to the rear side of the radiator. The assembly further comprises a fan disposed within the cavity and configured to spin freely within the cavity without being attached to the fan shroud and screen assembly.

The utility model discloses a low-noise box body for a diesel generating set, which comprises a mounting base, a partition plate component and a plurality of partition plates, the front-end air inlet plate is mounted on the mounting base and is provided with a first air inlet, and a first noise reduction ventilation hood is arranged at the first air inlet on the inner side surface of the front-end air inlet plate; the rear-end exhaust plate is mounted on the mounting base, and an exhaust outlet is formed in the rear-end exhaust plate; the left air inlet plate is mounted on the mounting base and is provided with a second air inlet, and a second noise reduction ventilation hood is arranged at the second air inlet on the inner side surface of the left air inlet plate; the right air inlet plate is mounted on the right side surface of the mounting base, a third air inlet is formed in the right air inlet plate, and a third noise reduction ventilation hood is arranged at the third air inlet on the inner side surface of the right air inlet plate; and the top cover covers the front-end air inlet plate, the rear-end air exhaust plate, the left-side air inlet plate and the right-side air inlet plate to form a box body. The structure is simple, noise generated during operation of the generator set can be effectively absorbed and blocked, and outward transmission of the noise is reduced.

The invention belongs to the technical field of engineering elements, and particularly relates to a connector for a heat dissipation water tank and a working method thereof. The connector for the heat dissipation water tank comprises a female connector arranged on the side wall of the water tank; the male joint is matched with the female joint and is arranged at the end part of a water outlet pipe of the generator set; the adjusting and sealing assembly comprises an inner sealing pipe arranged in the female connector in a sliding mode and an outer adjusting pipe arranged outside the female connector in a sleeving mode. After the male connector is inserted into the female connector, water flow pushes the inner sealing pipe to move towards the water tank, and the end of the inner sealing pipe abuts against the reducing conical surface in the female connector in a sealed mode. When the inner sealing pipe axially moves, the water outlet pipe is tightened to reduce water flow impact on the female joint; by adjusting the matching of the sealing assembly, the male joint and the female joint, the impact force of water flow on the female joint is reduced, and the sealing performance of the male joint and the female joint is improved.

A device adapted for vacuum-filling a coolant system, and a method of using a device adapted for vacuum-filling a coolant system.

The present invention relates to a cooling module (100) for a motor vehicle, comprising at least one heat exchanger (3, 4) and at least one conduit (1) including an air inlet (10) of the cooling module (100), the conduit (1) being configured to deliver cooling air from the air inlet (10) toward the heat exchanger (3, 4), characterized in that the conduit (1) includes fixing elements (24, 24', 25, 26, 27, 28, 29) configured to fix the heat exchanger (3, 4) to the conduit (1).

The utility model relates to the technical field of engine cooling and lubricating, in particular to a cooling and lubricating system driving device of an in-line type piston engine, the engine and an aircraft of the engine, and the cooling and lubricating system driving device comprises a cooling driving device and a lubricating driving device which are respectively linked with a crankshaft driving gear, the cooling driving device is connected with the oil pump assembly, the lubricating driving device is connected with the oil pump assembly, the crankshaft driving gear drives the damping gear assembly through gear meshing, the damping gear assembly is coaxially provided with a transmission gear, and the cooling driving device and the lubricating driving device are respectively connected with the transmission gear in a meshing mode. Technical guarantee is provided for an inline four-cylinder piston type aero-engine to adopt a crankshaft connecting rod piston mechanism which runs at a high speed.

The invention provides a sea water pump, and relates to the technical field of water pumps, the sea water pump comprises a pump shell, the pump shell is provided with a water inlet, a pumping chamber and a water outlet which are communicated in sequence, and the water inlet is perpendicular to the pump shell and detachably connected with a water inlet elbow; one end of the transmission shaft extends into the pumping chamber, and the other end rotationally penetrates through the bearing body to be connected with a driving motor; the main impeller is mounted on the transmission shaft and close to the water inlet; the auxiliary impeller is installed on the transmission shaft and located between the main impeller and the pump shell. The blades on the main impeller are made of copper, and the blades on the auxiliary impeller are made of rubber. A plurality of main impeller screw holes are distributed in the main impeller; the water inlet is connected with a filter. Due to the arrangement of the main blade screw holes, dynamic balance is conveniently achieved, pressure impact on the main impeller is reduced, and the main blade screw holes are used as auxiliary holes during assembly and disassembly. And the water inlet is connected with a filter, so that the normal work of the main impeller and the auxiliary impeller is prevented from being influenced due to the fact that large-volume soft marine organisms enter the pumping chamber.

The invention discloses a risk early warning method and system for an emergency diesel generator of a nuclear power plant, and the method comprises the steps: collecting operation parameters of a generator set in a hot standby state, and when the parameters are not in a preset normal range, indicating that the parameters are abnormal and the generator set breaks down; preprocessing the acquired operating parameters, and extracting effective features of the preprocessed operating parameters; on the basis of the generator set with the fault, combining with the effective characteristics, and utilizing a high-frequency data flow transient anomaly recognition algorithm to capture an anomaly type label to obtain fault information; evaluating the risk degree of the generator set according to the effective features and the abnormal type labels of the preprocessed operation parameters; and carrying out risk early warning and response on the generator set according to the risk degree of the generator set. According to the invention, the operation state of the emergency diesel generator set can be monitored in real time, accurate risk assessment and early warning information is provided, and the risk management capability of managers is enhanced.

An electrical machine is disclosed. The electrical machine includes a rotor rotatable around an axis of rotation and a stator fixed against rotation with respect to the rotor and which concentrically encloses the rotor, forming an annular gap bounded radially between the rotor and the stator and through which a cooling liquid can flow. The stator is at least partially encapsulated by injection molding with a plastic sheathing. A printed circuit board with electronic components arranged on it and a central opening through which a rotor shaft of the rotor protrudes. The plastic sheathing has on a side facing the printed circuit board at least one recess in which at least one electronic component of the printed circuit board engages.

A method and system for modulating vapor and liquid fractions of a cycling liquid-vapor fluid operating within its phase transition envelope by creating forced oscillating heat transfer between liquid and vapor fractions of the cycling stream. A liquid stream segment is expansion cooled and brought into thermal communication with a vapor stream segment. The contact with the expansion-cooled liquid enables intermolecular forces to drive condensation and release condensation heat at a condensation temperature higher than the temperature of the expansion-cooled stream segment. The resulting temperature gradient enables the expansion-cooled segment held at constant volume to capture the condensation heat and isochorically vaporize into a vapor stream segment that again is forced to condense so as to form an oscillating thermal cycle within the cycling liquid-vapor fluid.

The present invention discloses an all-terrain vehicle and its engine. The engine includes: a cylinder provided with an exhaust port and a first cooling channel; a crankcase disposed below the cylinder, the top of the crankcase being spaced a predetermined distance from the exhaust port, the crankcase including a second cooling channel communicating with the first cooling channel; a water pump disposed on one side of the crankcase; a cylinder inlet pipe, one end of the cylinder inlet pipe being connected to the water pump, the cylinder inlet pipe being fixedly attached to the top of the crankcase and spaced apart from the cylinder, and the other end of the cylinder inlet pipe communicating with the second cooling channel. Thus, the cylinder inlet pipe and the exhaust pipe can be effectively spaced apart further, so that the high-temperature exhaust pipe can be prevented from affecting the low-temperature cylinder inlet pipe, the cooling water temperature of the cylinder inlet pipe can be effectively reduced, the working reliability of the engine can be ensured, and the fuel efficiency of the engine can be improved.

The invention provides a fault protection and dynamic limited power control method and system for a 48V electronic water pump. The fault protection and dynamic limited power control method comprises the steps that the preset real-time working current and the real-time pump body temperature of the 48V electronic water pump are obtained; performing weighted fusion calculation on the real-time working current and the real-time pump body temperature to generate a comprehensive state index; comparing the comprehensive state index with a preset water pump reference operation range to judge whether a preset grading response mechanism is triggered or not, and generating a judgment result; when the judgment result is that the grading response mechanism is triggered, calling a power limiting mode corresponding to the comprehensive state index from a preset mode mapping table; and the power limiting mode is applied to adjust the driving power of the preset 48V electronic water pump, and a preset fault protection strategy corresponding to the power limiting mode is executed. According to the invention, refined fault protection and power management of the 48V electronic water pump are realized, the problem of excessive response or insufficient response of a traditional single threshold protection mode is avoided, and the adaptability and reliability of the system under complex working conditions are improved.

The invention relates to the technical field of vehicle thermal management, and discloses a vehicle radiator self-cleaning method, device and equipment and a computer storage medium, and the method comprises the steps of determining a current cleaning mode of a radiator of a vehicle based on current state information of the vehicle; according to the current cleaning mode, in combination with at least one kind of information of the current whole vehicle temperature value and the current vehicle speed value of the vehicle and the current fault state of the heat management actuator, whether the heat dissipation abnormal fault occurs to the heat dissipater or not is judged; and when it is judged that the heat dissipation abnormal fault happens to the radiator, a heat management executor is controlled to execute self-cleaning operation corresponding to the current cleaning mode on the radiator. By means of the technical scheme, the problem of heat dissipation failure caused by foreign matter shielding of the radiator can be solved, the situation that power of the whole automobile is degraded or lost due to the fact that the radiator is abnormal is avoided, and therefore the heat dissipation effect and performance of the automobile under different running working conditions and seasons are guaranteed, and the safety and reliability of the new energy automobile are improved.

The invention relates to the field of vehicle control, in particular to an intelligent oil-saving sliding control method and system for an AMT commercial vehicle and the commercial vehicle, and the method comprises the steps: obtaining a gradient threshold interval and hysteresis width corresponding to a current state based on the total load of the vehicle, the real-time vehicle speed and the real-time road gradient; whether the engine water temperature and the accelerator opening degree signal meet preset fuel-saving sliding admission conditions or not is judged in real time; when all the access conditions are met and the real-time gradient and the vehicle speed are within the threshold interval, gear combination of the AMT gearbox is maintained, an engine is controlled to enter a fuel cut-off mode, and the vehicle enters an intelligent fuel-saving sliding state based on engine reverse towing; and if the real-time gradient exceeds the safety range, engine fuel oil supply is immediately recovered, and the in-cylinder braking or exhaust braking function of the engine can be cooperatively activated, so that the fuel-saving sliding state is stably quitted. And on the premise of ensuring compliance and safety of the whole process, the fuel economy is effectively improved.

The utility model discloses a suspension type expansion water tank for a heavy truck type, which comprises a cab welding assembly, a cooling module and an expansion water tank assembly, and the expansion water tank assembly is mounted at the bottom of the cab welding assembly and positioned above the cooling module; the expansion water tank assembly comprises an expansion water tank body, the bottom of the expansion water tank body is connected with a degassing pipeline and a water supplementing pipeline, the other end of the water supplementing pipeline is connected to a water inlet of the water pump, an expansion water tank pressure cover is installed on the upper right portion of the expansion water tank body, and an expansion water tank cover is installed on the front left portion of the expansion water tank body. A liquid level alarm sensor is installed on the left side of the bottom of the expansion water tank body. According to the suspension type expansion water tank for the heavy truck type, the expansion water tank is applied to a heavy truck cooling system, and the problems that an expansion water tank is large in occupied space, and a water supplementing pipeline and a degassing pipeline are long are solved; interference with surrounding parts is avoided, reliability of products is improved, and attractiveness is greatly improved.

The invention relates to a cleaning device (10) for cleaning a coolant of a motor vehicle (12) having a circuit through which the coolant flows, with a line (14) through which the coolant flows, which has a first connection element (18) by means of which the line (14) of the cleaning device (10), which is designed separately from the motor vehicle (12) and as an additional part for the motor vehicle (12), can be connected to a first point (S1) of the circuit in a non-destructive manner and is thereby fluidically connected to the circuit, and a second connection element (20) by means of which the line (14) can be connected to a second point (S2) of the circuit arranged downstream of the first point (S1) in a non-destructive manner and is thereby fluidically connected to the circuit.At least one filter element (22) is also provided, arranged between the connection elements (18, 20), by means of which particles contained in the coolant flowing through the line (14) can be filtered out of the coolant to clean the coolant.

The invention relates to the technical field of generators, and discloses an efficient heat dissipation piston generator which comprises a power generation body mechanism, wind collection and flow guide mechanisms are arranged on the two sides of the power generation body mechanism, and an air inlet and flow guide mechanism is arranged on one side of each wind collection and flow guide mechanism. According to the piston generator with the efficient heat dissipation function, through the arrangement of the power generation body mechanism, the air collection flow guide mechanism, the air inlet flow guide mechanism, the water mist spraying cooling mechanism and the seepage water collection mechanism, an active spraying cooling technology can be adopted in the using process, and micron-sized water mist is evenly sprayed to the surface of a power generation unit through the water mist spraying mechanism; and meanwhile, directional airflow is formed in combination with an air inlet flow guide structure to accelerate evaporation of liquid drops, so that heat is efficiently taken away, and compared with a traditional passive heat dissipation mode, the scheme remarkably improves the heat dissipation efficiency and reduces dependence on the environment wind speed.

A methanol engine starting method, relating to the technical field of automobiles. The starting method is applied to a heating device. The heating device heats, by igniting methanol fuel, a methanol engine connected to the heating device. The starting method comprises: measuring the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold value; if it is determined that the first engine water temperature is less than the first temperature threshold value, heating the methanol engine, and measuring the methanol engine to obtain a second engine water temperature of the methanol engine; and when the second engine water temperature is greater than or equal to a second temperature threshold value, controlling the methanol engine to inject methanol fuel to complete starting. The present application further relates to a methanol engine starting apparatus, a heating device, and a computer readable storage medium.

A sealing mechanism for a rotating mechanism, a rotating mechanism and a sealing method. The rotating mechanism comprises a rotor having a rotary disk (1) and a stator accommodating the rotor. The sealing mechanism comprises a first flow-blocking portion (4), which protrudes and is provided on an end face of the rotary disk (1), wherein a labyrinth seal and a spiral seal are provided in combination at the first flow-blocking portion (4); and a first corresponding flow-blocking portion (5), which is recessed, is provided on an inner surface of the stator and is in clearance fit with the first flow-blocking portion (4). The first flow-blocking portion (4) has a first recessed portion and / or protruding portion (6) on a circumferential surface thereof, the first corresponding flow-blocking portion (5) is flatly constructed or provided, on a circumferential surface thereof, with a first corresponding protruding portion and / or recessed portion (7) which are / is in clearance fit with the first recessed portion and / or protruding portion (6), and the first flow-blocking portion (4) and the first corresponding flow-blocking portion (5) form a labyrinth seal at the corresponding top or bottom section thereof respectively and form a spiral seal at a corresponding side section respectively, which can further suppress fluid leakage, thereby improving the sealing performance.

The invention discloses an SCR system heating unfreezing control method and system, and the method comprises the steps: starting and continuously carrying out the heating unfreezing of a urea pump and a urea pipe when the SCR system meets a preset heating unfreezing condition; meanwhile, in the engine driving mode, the urea box is directly heated and unfrozen through engine cooling liquid; in the pure electric driving mode, when the temperature of engine cooling liquid is larger than the first preset cooling liquid temperature, an electronic water pump is started to circulate the engine cooling liquid to heat and unfreeze the urea box; otherwise, switching to an engine driving mode for heating and unfreezing; during heating unfreezing, the SCR system is subjected to pressure buildup under the pressure buildup condition, and heating unfreezing is stopped when pressure buildup succeeds. The SCR system heating and unfreezing control method of the hybrid power vehicle under different driving modes is comprehensively considered, and the reliability of the SCR system heating and unfreezing control technology of the hybrid power vehicle is effectively improved.

The invention relates to an oil pump device control method and relates to the technical field of pump structures. The containing cavity is communicated with the air inlet, so that external air can enter the containing cavity through the air inlet, the pressure in the cylinder body is increased, the containing cavity is communicated with the exhaust port, so that air in the cylinder body can be exhausted out of the containing cavity through the air outlet, the pressure in the cylinder body is reduced, and then the pressure value in the containing cavity of the cylinder body is adjusted. As the containing cavity of the cylinder body is communicated with the containing cavity of the pressure stabilizing cylinder, according to the fluid statics principle, the pressures of all points of static fluid in the communicating container are equal, that is, the pressure value in the containing cavity is equivalent to the pressure value of the containing cavity in the cylinder body, and according to the relation between the pressure value in the containing cavity and the preset pressure value, the pressure value of the pressure stabilizing cylinder is obtained. According to the oil pump device, whether the pressure in the containing cavity is large or small is judged, then air inflow or air exhaust of the cylinder body is controlled, the pressure value in the containing cavity is kept within the target pressure range, the oil pump device can stably output, and the stability of the oil pump device is improved.

The method for determining the stop time of the vehicle engine comprises the following steps of: pre-calibrating a specific relationship between the stop time of the engine and a temperature value and a temperature attenuation value at a closing moment at a specific environment temperature; the method comprises the following steps of: pre-calibrating a correction coefficient of a relationship between engine shutdown time and a temperature value and a temperature attenuation value at a shutdown moment at different environment temperatures relative to a specific relationship, wherein the correction coefficient comprises the following steps of: obtaining a temperature value when an engine is shut down; acquiring a temperature value when the engine is restarted; calculating a temperature attenuation value based on the shutdown and restart time temperature values; basic downtime is calculated based on the shutdown moment temperature value, the temperature attenuation value and a specific relation; acquiring an environment temperature value during the shutdown period of the engine, and comparing the environment temperature value with each environment temperature value corresponding to the correction coefficient to acquire a corresponding basic correction coefficient; and calculating the final downtime based on the basic correction coefficient and the basic downtime. The invention also relates to an apparatus for determining the engine downtime and a non-transitory machine-readable storage medium.

The invention discloses an exhaust gas waste heat injection cooling system and a vehicle. The waste gas waste heat injection cooling system comprises a generator, a water supply device and an injection device. An input port of the generator is connected with an exhaust port of the engine for introducing tail gas; the water supply device is connected with the generator and used for conveying a cooling medium to the generator to cool tail gas; the injection device is connected with the generator, water vapor formed by heating the cooling medium by the generator is conveyed to the injection device, and the injection device is further connected with a cabin area of the vehicle and used for introducing cooling airflow in the cabin area. The air inlet flow of the cabin area of the vehicle is increased through the injection device, the heat dissipation efficiency is remarkably improved, the utilization rate of waste gas waste heat is increased, and meanwhile the problem of heat damage caused by the too high tail gas temperature of the vehicle can be solved.

The invention discloses a cooling supply device for a diesel generating set, which relates to the technical field of generators and comprises a cooling device. According to the cooling supply device for the diesel generating set, through the design of the cooling device, wind power is generated through the first draught fan and enters a generator box through a channel in the upper side of the cooling shell, so that the ventilation and heat dissipation effects are achieved, particles in airflow are adsorbed through a composite mechanism, and the effect of filtering impurities in the airflow is achieved; hot air flow in a generator box is driven by wind power to be discharged outwards, so that the heat dissipation efficiency of equipment is improved, airflow drives a wall scraping mechanism to rotate, the wall scraping mechanism rubs the inner wall of a pipeline, the effect of cleaning the inner wall of the pipeline is achieved, the inner wall of a second grid cover is rubbed through the cleaning mechanism, inner wall resistance is eliminated, and the heat dissipation efficiency of the equipment is improved. Smooth passing of airflow is guaranteed, inner wall deposits are removed, aging and damage of parts are delayed, blockage of the parts is avoided, and the chip removal effect is prevented from being affected.

A radiator cap includes a top cover unit, an intermediate seat unit, an output valve unit, and an input valve unit. The top cover unit includes cover body, a stem, and a plurality of positioning member to be fastened to a radiator opening. A washer surrounds the stem. The intermediate seat unit includes a connecting tube and a connecting seat connected to each other. The output valve unit includes a valve seat connected to the connecting seat. The valve seat has hook portions engaged with guiding recesses of the connecting seat. A valve disc is connected to the valve seat. A first spring is disposed between the valve seat and the connecting seat. The input valve unit includes a pin rod, and a second spring to bias the pin rod to thereby abut against the valve disc so as to close a valve hole.