1451results about "Liquid cooling" patented technology

A heat management system includes: a first flow passage in which a reserve tank is not provided; a second flow passage in which a reserve tank is provided; a switching device configured to switch between coupling and uncoupling of the first flow passage and the second flow passage to and from each other; and a control device configured to control the switching device. The control device is configured to, when predetermined coupling conditions are met, make the heat medium flow through the first flow passage and the second flow passage that have been coupled to each other by the switching device. When the control device determines that air bubbles exceeding the allowable volume are present in the heat medium, the coupling conditions switch from being unmet to being met.

The present invention relates to an integrated cooling module including a central manifold having a mounting space in which components may be mounted, refrigerant flow channels in which a refrigerant may flow, and communication holes for allowing the components and the refrigerant flow channels to communicate with one another, such that the components are integrated around the central manifold, thereof excluding hoses or pipes and achieving miniaturization and weight reduction of an entire cooling system.

The invention relates to the technical field of automobile engine cooling, in particular to an engine cooling device which comprises a heat dissipation shell and a cooling assembly. A liquid inlet is formed in the top wall of the heat dissipation shell, a liquid outlet is formed in the bottom wall of the heat dissipation shell, the liquid inlet communicates with a liquid inlet pipe, the liquid outlet communicates with a liquid outlet pipe, the end, close to the heat dissipation shell, of the liquid inlet pipe communicates with the end, close to the heat dissipation shell, of the liquid outlet pipe through a cooling pipe, and a plurality of heat dissipation fins distributed at intervals in the first direction are arranged in the heat dissipation shell. A plurality of through holes are formed in one side of the heat dissipation shell in a penetrating mode in the second direction, and the second direction is perpendicular to the first direction; the cooling assembly comprises a fan unit, the fan unit is located on the side, close to the through hole, of the heat dissipation shell, and the fan unit is slidably connected to the heat dissipation shell in the first direction so as to adjust the distance between the fan unit and the heat dissipation shell. The position of the fan can be adjusted according to the actual heat dissipation condition, so that the heat dissipation effect is improved.

The invention discloses an excavator heat dissipation control method and system based on environment temperature and operation working conditions. The excavator heat dissipation control method comprises the steps that S1, the operation working conditions of an excavator are divided into five working conditions including the super-heavy load working condition, the heavy load working condition, the medium load working condition, the light load working condition and the super-light load working condition; s2, the external environment temperature is divided into 10 gears; s3, according to the environment temperature and the operation working condition, the heat dissipation requirement is divided into 10 gears; s4, the rotating speed of the cooling fan is adjusted according to the cooling requirement gear, so that the cooling requirement is accurately matched with the rotating speed of the cooling fan; and S5, whether the temperature of the working medium in the excavator is larger than a high-temperature threshold value or not is judged, if yes, heat dissipation is conducted according to the corresponding heat dissipation fan rotating speed obtained through the heat balance test, and if not, heat dissipation is conducted according to the actual heat dissipation requirement gear standard. The problem of heat dissipation redundancy caused by single parameter control is solved, and dynamic matching of the rotating speed of the fan and the composite heat dissipation requirement is achieved. And the energy consumption under the low-load working condition and the cold environment is reduced, and the risk of insufficient heat dissipation under the high-temperature heavy-load working condition is avoided.

An electric work vehicle includes a body, a travel device in the body, a motor to drive the travel device, an inverter to supply power to the motor, an electric component, a DC / DC converter to convert a voltage of power to be supplied to the electric component, a radiator to cool coolant, and a cooling path through which the coolant cooled by the radiator circulates through the motor, the inverter, and the DC / DC converter and returns to the radiator. The cooling path extends from the radiator, passes through the inverter, the motor, and the DC / DC converter in this order, and returns to the radiator.

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

A dozer including a cabin, the dozer includes: an engine room located in front of the cabin, where an engine is disposed; an exhaust gas after-treatment device for purifying exhaust gases emitted from the engine; a first cooling device located in front of the cabin and capable of cooling the exhaust gas after-treatment device; and a second cooling device spaced apart from the first cooling device, with the cabin midway therebetween, and capable of cooling the engine.

The utility model provides an intelligent diesel generating set which comprises a mounting plate, one end of a radiating pipe is fixedly communicated with a water collecting pipe, the bottom of the water collecting pipe is fixedly communicated with a water return pipe, the water return pipe is fixedly communicated with a cooling liquid tank, and a communicating pipe is provided with a one-way valve. A temperature control assembly is arranged, a water pump pumps out cooling liquid in a cooling liquid box, the cooling liquid enters a heat dissipation pipe through a water distribution pipe and exchanges heat with air, the cooling liquid is subjected to heat dissipation and cooling, the cooled cooling liquid flows back into the cooling liquid box through a water return pipe, and low-temperature cooling liquid in the cooling liquid box flows back into the cooling liquid box again through a communicating pipe; and the diesel generator is continuously cooled. When the temperature is low, the water pumps are closed, cooling liquid in the cooling liquid box is not cooled, viscosity of engine oil is reduced, different water pumps are started to cool different diesel generators, independent control over the generator set is facilitated, and it is guaranteed that the temperature of each diesel generator is kept stable.

The utility model discloses an automobile warm air water tank capable of adapting to low temperature. The water inlet is arranged in the box body close to the bottom end of the box body, and the water inlet is communicated with the box body; the water outlet is arranged on the box body close to the top end of the box body, and the water outlet is communicated with the box body; the bottom end, close to the box body, of the heating pipeline is arranged in the box body, and the heating pipeline is partially located in the box body. By arranging the heating pipeline, when the heat of the engine is not enough to maintain the temperature of the automobile, the heating pipeline can provide heat. When the automobile does not work, the heating pipeline can maintain the temperature of the cooling liquid, and freezing of the cooling liquid due to too low temperature is avoided. The bottom end, close to the box body, of the heating pipeline is arranged in the box body, when the cooling liquid in the box body is heated, the density of the cooling liquid at the bottom is reduced and increased after the cooling liquid is heated, and therefore circulation is formed in the box body, and the cooling liquid in the box body is heated more evenly.

The present invention makes it possible to, in a configuration provided with electrical components such as an inverter device for controlling an electric motor, obtain a high degree of freedom with regard to the layout of the electrical components and efficiently place the electrical components in a limited space. An excavator comprises: an electric motor; a hydraulic fluid tank in which hydraulic fluid is stored; a hydraulic pump that is driven by the electric motor and supplies the hydraulic fluid within the hydraulic fluid tank to an actuator; and an inverter device that, with respect to the hydraulic fluid tank, is provided at a position away from a left-side surface part of the hydraulic fluid tank.

The invention discloses an axle staged cooling system, an axle staged cooling assembly and an engineering vehicle. The axle staged cooling system comprises an engine first-stage cooling system, an engine second-stage cooling system, an axle first-stage cooling system and an axle second-stage cooling system. Each stage of cooling system controls cooling water and oil path trend through a thermolator in each loop, controls axle cooling oil and engine cooling water to exchange heat, and meets different cooling requirements of an axle. The temperature sensor in each loop outputs water and oil temperature signals to a motor of the cooling fan, so that the rotating speed of the fan is increased to different degrees along with the temperature rise of each cooling system, and different cooling powers are matched. According to the grading system, the engine and the axles can work at the proper temperature at the same time, the two heat exchangers cool cooling oil of the front axle, cooling oil of the middle axle and cooling oil of the rear axle respectively, the cooling capacity of the front axle is improved, the braking effectiveness of the front axle is guaranteed, and rollover caused by serious backward movement of the gravity center of a vehicle during emergency braking is prevented.

A vehicle thermal management system including a heating heat exchanger which exchanges heat with air within an air-conditioning case to heat the air, and a cooling heat exchanger which exchanges heat with air to cool the air; a refrigerant line circulating through a compressor, a condenser, an expansion valve, and a chiller; a first coolant line that passes through the heating heat exchanger and exchanges heat with the condenser of the refrigerant line; a second coolant line that passes through the cooling heat exchanger and exchanges heat with the chiller of the refrigerant line; a radiator that exchanges heat between the coolant and outside air; a third coolant line that passes through the radiator and exchanges heat with a battery of a vehicle; and a mixing tank provided to mix the coolant of the first coolant line, the second coolant line, and the third coolant line.

A system for circulating coolant comprises a fluid transfer manifold having at least a first inlet port and one or more fluid ports. The fluid ports are connected to one or more coolant circuits. A fluid pump connected to a heat generating component and to the first inlet port circulates the coolant in the coolant circuits. A valve mechanism attached to the fluid transfer mechanism is operable to fluidically connect the first inlet port to one or more of the fluid ports and circulate coolant in the coolant circuits.

Systems and methods for controlling vehicle energy efficiency are provided. The system may comprise an ADAS, a navigation sensor configured to collect navigation data, and an electric drive cooling system, comprising a powertrain controller, comprising a processor and a memory, one or more electric motors (EMs), one or more power electronics (PEs), and a temperature control system. The processor may be configured to determine a vehicle route, dissect the route into a plurality of segments, calculate a travel time for each segment, divide the travel time into a number of prediction steps, forming a prediction horizon, establish one or more road conditions, estimate EM motor speed and torque, and estimate a temperature profile for the EMs and PEs across the prediction horizon, and determine one or more control inputs to cause the one or more EMs and the one or more PEs to function within a desired temperature range.

An apparatus (102) and a method (400) for improving the performance of a diesel engine (104) are disclosed. The apparatus (102) has a charge air cooler (114) and a cooling system (112). The cooling system (112) has an inlet (320) for receiving a heated fluid (106) generated using the waste heat of the diesel engine (104). The cooling system (112) is configured to use thermal energy from the heated fluid (106) to cool a fluid (118) within the cooling system (112). The charge air cooler (114) has a cool fluid inlet (224) fluidically connectable to the cooling system (112) to receive the fluid (118). The charge air cooler (112) is configured to cool an engine air (108A) to be supplied to the diesel engine (104) using the fluid (118), thereby increasing the performance and efficiency of the diesel engine (104).

The invention relates to the technical field of heat exchange, and particularly discloses a water-oil radiator assembly which comprises a shell, the outer surface of the shell is fixedly sleeved with a connecting pipe, radiating fins are fixedly installed in an inner cavity of the shell, a water cooling assembly is arranged in the inner cavity of the shell, and a radiating assembly is fixedly installed on the inner wall of the shell. Cooling liquid can be rapidly cooled through the water cooling assembly, the cooling liquid is dispersed and flows down to make full contact with air, the cooling liquid can be scattered, splashing of the cooling liquid is prevented, the cooling effect is improved, the service life of the radiator is prolonged, high-temperature damage to an engine is avoided, and the effect of protecting an engine cylinder is achieved; through the heat dissipation assembly, the two fans can be adopted to dissipate heat of the cooling pipe and the cooling liquid, it is guaranteed that the whole radiator does not occupy too much space, meanwhile, the heat dissipation area of the fans is increased, the overall heat dissipation effect is improved, and therefore it is guaranteed that the cooling pipe and the cooling liquid dissipate heat evenly, and rapid cooling of the cooling liquid and oil liquid is considered.

The invention relates to the technical field of oil cylinder detection, and discloses a movable engine unit protection mute shell and an engine unit, the movable engine unit protection mute shell comprises a cabinet body, a door body is arranged on the front side of the cabinet body, a mute plate is embedded in the inner wall of the cabinet body, an electric sliding rail is arranged in the cabinet body, and a sliding plate is slidably connected to the upper side of the electric sliding rail; a diesel engine unit is fixedly installed on the upper surface of the sliding plate, a cooling mechanism is arranged in the cabinet body, a heat exchange pipe is filled with cooling liquid, when the diesel engine unit works, generated heat enables the cabinet body to be filled with high-temperature gas, and at the moment, the cooling liquid in the heat exchange pipe and the high-temperature gas in the cabinet body generate a heat exchange effect; the temperature in the cabinet body is reduced, heat in the cabinet body is eliminated, and the technical problems that an existing generator set can generate some heat in the working process, and if the heat in the closed cabinet body cannot be eliminated, the heat can damage the cabinet body and generator set equipment are solved.

A marine propulsion system with a closed coolant loop is described. The marine propulsion system has a starboard heat exchanger and a port side heat exchanger that provides improved cooling and increases engine life compared with traditional open loop cooling systems, particularly in harsh environments such as salt water, brackish water, swamp, shallow or sediment and debris rich water. The two discrete heat exchangers are mounted to the lower unit of the marine propulsion system and also serve to improve hydrodynamic performance of the marine propulsion system.

A reservoir tank assembly and a heat pump system including the same are disclosed. The reservoir tank assembly may include a reservoir tank configured to remove air contained in a coolant and an adapter fluidly connecting the reservoir tank and a coolant line along which the coolant flows. A part of the coolant flowing along the coolant line is introduced into any one degassing chamber among a plurality of degassing chambers through the adapter. The coolant passing through the plurality of degassing chambers is discharged to the coolant line through the adapter.

An electric propulsion device includes a motor for rotating a propeller and a cooling device for cooling the motor. The cooling device includes a first cooling system and a second cooling system. The first cooling system includes a heat exchanger that uses water from outside the electric propulsion device as cooling water and cools refrigerant, and a supply passage that supplies the water from outside the electric propulsion device as the cooling water to the heat exchanger. The second cooling system includes a motor cooling jacket that is provided in the motor and cools the motor with the refrigerant, and a circulation passage that circulates the refrigerant between the heat exchanger and the motor cooling jacket.

The invention discloses an energy-saving generator set axial flow channel composite cooling device, which relates to the technical field of cooling devices, and comprises an air cooling mechanism, a plurality of heat dissipation mechanisms, a plurality of control mechanisms, a plurality of connecting pipes, a liquid inlet and a liquid outlet. According to the device, temperature changes are sensed in real time through the memory metal sheet, a three-stage heat dissipation adjusting mechanism is automatically triggered, the heat dissipation requirements of the generator set under low, medium and high working conditions are accurately matched, basic heat dissipation is achieved through single-tube operation at the low temperature, three-tube enhanced heat dissipation is started at the medium temperature, and five-tube full-open maximum power heat dissipation is achieved at the high temperature; a linked cooling liquid flow three-stage adjusting system is matched, so that the heat dissipation efficiency and the temperature change are synchronized in real time, energy waste caused by traditional continuous full-power heat dissipation is reduced, the problem of fatigue cracks of metal parts caused by long-term thermal stress is effectively reduced, the service life of the device is prolonged, and the service life of the device is prolonged. The dilemma problems of supercooling waste and overheating damage of a traditional heat dissipation system are fundamentally solved.

A cooling device for a ship propulsion machine includes a drain passage and a collector. The collector includes a collector main body, a case, an upper connection pipe, and a lower connection pipe having flexibility. A first bent portion is provided between an upper end portion and a lower end portion of the lower connection pipe. A second bent portion is provided between the first bent portion and the lower end portion of the lower connection pipe. The lower connection pipe extends downward from the upper end portion thereof along an axis of the case, bends at the first bent portion, extends downward while being inclined with respect to the axis so as to be separated from the axis, bends at the second bent portion, and extends downward while being inclined with respect to the axis so as to be close to the axis.

An electric hydraulic excavator (1) is provided with a heater core (34) for heating, an electrical heater (35) for heating a second heat exchange liquid to be supplied to the heater core (34), and a second reserve tank (39) into which the second heat exchange liquid flows and from which the second heat exchange liquid flows out. On top of this, a partition wall (12) is provided to partition between a first cooling fan (28) and the electrical heater (35), and a first reserve tank (29) is located on the same side as the first cooling fan (28) on a basis of the partition wall (12) as a boundary, and a first heat exchange liquid for cooling an electric motor (15) and the like flows into and flows out from the first reserve tank (29) with a change in temperature. On the other hand, the second reserve tank (39) is located at the opposite side to the first cooling fan (28) on a basis of the partition wall (12) as a boundary.

A system includes a cooling system for an internal combustion engine and an electronic control system for controlling the cooling system. The electronic control system is configured to determine a feedforward target temperature for coolant of the cooling system using a model that is based on a simulation of heat production and cooling capacity of the system. The electronic control system is also configured to determine an output command based on the target coolant temperature and an actual coolant temperature to prioritize and drive one or more of a thermal management valve, a water pump, and / or a cooling fan, respectively.

This invention relates to the field of temperature control device technology, and particularly to a thermostat, a heat dissipation system, and a vehicle. The thermostat has a first passage, a second passage, a third passage, and a fourth passage. The thermostat, by adding a second passage, can preheat the radiator when performing a small circulation loop at low temperatures. It also adds a fourth passage for automatic pressure relief under high pressure conditions. This invention solves the problems of existing thermostats having limited functionality and low integration, only able to control the opening and closing of the small and large oil circulation loops. Furthermore, it addresses the issues of high-temperature oil causing significant thermal and pressure shocks to the radiator when the large circulation loop is open, affecting the reliability of the heat dissipation system, and the inability to promptly relieve pressure when the system pressure is too high.

The invention relates to the technical field of water-cooling heat dissipation equipment, in particular to a generator set water-cooling heat dissipation system which comprises a generator set and two heat dissipation water tanks arranged on the outer side of the generator set, the generator set is provided with a liquid inlet port and a liquid outlet port which are used for water-cooling connection, and the two heat dissipation water tanks are fixed to the outer side of the generator set through supports. Cooling fins are fixed to the outer sides of the cooling water tanks, a liquid inlet connecting pipe is fixed to the upper ends of the two cooling water tanks, a liquid outlet connecting pipe is fixed to the bottoms of the two cooling water tanks, the liquid inlet connecting pipe is fixedly communicated with a liquid inlet pipe in butt joint with the liquid outlet port, and the liquid outlet connecting pipe is fixedly communicated with a liquid outlet pipe in butt joint with the liquid inlet port. According to the water-cooling heat dissipation system, a traditional water-cooling heat dissipation system is optimized, the two heat dissipation water tanks are designed to be matched with the valve component to discharge cooling liquid in turn, it is guaranteed that one of the heat dissipation water tanks is in a cooled state in the circulation process of the cooling liquid, and the cooling efficiency of the cooling liquid is improved.

The invention provides a pump valve dynamic coordination control method and system of a ship cooling system, and relates to the technical field of ship power system.The method comprises the steps that state parameters of the ship cooling system are collected in real time, and the current vacuum state of a mixing condenser and the current film forming state of condensate water sprayed by multiple nozzles of a nozzle adjusting valve set are obtained; adjusting and controlling the opening degree of a nozzle adjusting valve group based on the current vacuum state so as to ensure that the vacuum degree of the mixing condenser meets the control requirement; the spray flow set value is obtained by obtaining the mapping relation between the pressure difference of an inlet and an outlet of a nozzle and the spray flow of correspondingly sprayed condensate water, the current spray flow is made to be equal to the spray flow set value by regulating and controlling the rotating speed of a condensate water circulating pump, and it is guaranteed that the condensate water is sprayed out in a liquid film shape. The problem that according to an existing ship cooling system, it cannot be guaranteed that condensate water is sprayed out in a liquid film shape after being adjusted through a condensate water circulating pump and a nozzle adjusting valve set is solved.

An electric propulsion device includes a propeller, a motor rotating the propeller, an inverter controlling driving of the motor, and a cooling device cooling the motor and the inverter. The cooling device includes an intake port taking water around the electric propulsion device into the electric propulsion device as cooling water, a drain port discharging the cooling water taken into the electric propulsion device to around the electric propulsion device, a pump flowing the cooling water from the intake port to the drain port in the electric propulsion device, a motor water jacket cooling the motor with cooling water taken into the electric propulsion device, and an inverter water jacket cooling the inverter with cooling water taken into the electric propulsion device. The motor water jacket and the inverter water jacket are connected in series between the intake port and the drain port in the electric propulsion device.

The utility model discloses a water-cooling radiator core with a reinforcing structure, which belongs to the technical field of radiators, and comprises a plurality of radiating components arranged side by side, each radiating component comprises a radiating tube and a reinforcing plate, each radiating tube comprises two symmetrically arranged side plates and two semicircular plates, each reinforcing plate comprises a middle plate and two side supporting plates, and each side supporting plate is arranged between the middle plate and the corresponding semicircular plate. The middle plate is attached to the inner wall of one of the two side plates, the side supporting plate comprises a first arc-shaped plate and a first short plate, and the first short plate is attached to the inner wall of the side plate under the elastic effect of the first arc-shaped plate. The front face and the back face of the radiating pipe can be supported, the two ends of the radiating pipe can also be supported, and the compressive strength of the radiating pipe is improved; the heat exchange effect of the radiating pipe is improved; the reinforcing plate is integrally formed, the manufacturing and forming process is simpler, the reinforcing plate can be conveniently placed in the radiating pipe, the reinforcing plate is stabilized in the radiating pipe through the elasticity of the side supporting plate, welding points are few, sliding is avoided, and the supporting effect is more stable.

The invention relates to a diesel engine cooling mechanism which comprises a cooling tower, a heat exchange assembly, a stirring assembly, a limiting assembly and a condenser, the heat exchange assembly, the stirring assembly, the limiting assembly and the condenser are installed in the cooling tower in a matched mode, the stirring assembly is used for stirring cooling liquid in the cooling tower, and the limiting assembly is used for limiting the horizontal relative position of the lower portion of the stirring assembly and a stirring main shaft; the outer wall of the cooling tower is sleeved with a heat exchange assembly, and the heat exchange assembly communicates with the interior of the cooling tower and is used for increasing the path through which the cooling liquid passes in the same space, so that the problem that in the prior art, a stirring mechanism is difficult to stir the cooling liquid with different volume depths is solved; the diesel engine cooling mechanism can adapt to diesel engine cooling mechanisms of various specifications.