2803results 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 provides a water circulation structure for a motorcycle engine, belonging to the technical field of motorcycles. It solves the technical problems of insufficient compactness of the existing engine water circulation structure and affecting the circulation effect. The water circulation structure of this motorcycle engine includes a reversing housing located on one side of the cylinder block. The reversing housing has a liquid inlet chamber and a liquid outlet chamber separated by a thin wall. The thin wall has a liquid passing port communicating the liquid inlet chamber and the liquid outlet chamber. Both ends of the water circuit are respectively communicated with the liquid inlet chamber and the liquid outlet chamber. The inner wall of the liquid inlet chamber has a liquid inlet for communicating with the cooling water tank, and the inner wall of the liquid outlet chamber has a liquid outlet for communicating with the cooling water tank. The thermostat is located in the liquid outlet chamber, and one end of the thermostat closes the liquid outlet. The other end of the thermostat is arranged towards the liquid passing port. After being heated, the thermostat can close the liquid passing port and open the liquid outlet. The present invention can ensure a sufficient circulating cooling effect while improving the structural compactness.

A cooling module includes a manifold to which a valve configured to control flow of a fluid is attached and in which a fluid flow path configured to allow the fluid to flow therethrough is formed. The manifold includes a foreign matter reservoir having a flow path cross-sectional area larger than a flow path cross-sectional area of the fluid flow path and storing a foreign matter flowing through the fluid flow path. The foreign matter reservoir is connected to at least one of an inflow port configured to allow the fluid to flow therethrough into the valve and an outflow port configured to allow the fluid to flow therethrough out of the valve.

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.

An embodiment vehicle thermal management system includes a first refrigeration cycle including a first refrigerant loop in which a first refrigerant is circulated, a battery cooling subsystem including a battery coolant loop in which a battery-side coolant is circulated, wherein the battery coolant loop is fluidly connected to a battery, a second refrigeration cycle including a second refrigerant loop in which a second refrigerant is circulated, the second refrigeration cycle comprising a condenser thermally connected to the battery cooling subsystem, a refrigerant chiller thermally connecting the first refrigeration cycle and the second refrigeration cycle, and a battery chiller thermally connecting the second refrigeration cycle and the battery cooling subsystem, wherein the condenser is located on a downstream side of the battery chiller in the second refrigerant loop.

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 utility model relates to the technical field of engines, discloses a water pump water inlet pipe assembly, a cooling system and an engine, and aims to solve the problem that water temperature deviation of water pumps on two sides of an existing diesel engine is large. The water pump water inlet pipe assembly comprises a first water inlet pipe, a second water inlet pipe, a converging part, a first water outlet pipe, a second water outlet pipe, a first flow guide rib and a second flow guide rib, and the converging part comprises a first side plate, a second side plate and a connecting plate connected between the first side plate and the second side plate, the first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe communicate with the containing space. At least one part of the first flow guide rib protrudes out of the surface of the side, facing the second side plate, of the first side plate, and at least one part of the second flow guide rib protrudes out of the surface of the side, facing the first side plate, of the second side plate. And the extension direction of the orthographic projection of the first flow guide rib on the first plane is crossed with the extension direction of the orthographic projection of the second flow guide rib on the first plane.

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.

An engine cooling system, comprising a cylinder block, a cylinder cover, a water pump, a warm air branch, and a temperature control branch, wherein the cylinder block cooperates with the cylinder cover to form a cylinder circulation branch; the warm air branch is arranged between the first outlet of the cylinder cover and the inlet of the water pump, and comprises a switch valve and a warm air core body that are arranged in series; the temperature control branch comprises a thermostat; the inlet of the thermostat is connected to the first outlet of the cylinder block, and the outlet of the thermostat is connected to the inlet of the water pump; the outlet of the water pump is connected to the first inlet of the cylinder block. Also disclosed are a cooling system control method, a controller, an automobile, and a storage medium. According to the whole cooling system, the cylinder circulation branch is used to achieve a series cooling effect, a split cooling effect is achieved by means of the temperature control branch and the warm air branch, the compatibility of series cooling and parallel cooling can be achieved, and the cooling effect of the cooling system can be guaranteed.

An integrated thermal management system for a vehicle includes a refrigerant line; a first coolant line for circulating coolant and connecting a first radiator, the high-temperature core, a heating core of an internal air conditioner, and a high-voltage battery with each other in parallel; a second coolant line for circulating coolant and connecting a second radiator, an electronic driving part, the low-temperature core, and a cooling core of the internal air conditioner with each other in parallel; and a third coolant line for circulating coolant and connecting a third radiator and the high-voltage battery to the second coolant line in parallel.

The invention discloses a commercial vehicle thermal management system and a control method thereof.The system comprises an electric control unit, an engine cooling loop, a hydraulic retarder cooling loop, a cooling loop on-off unit and a temperature detection unit, and the cooling loop on-off unit is used for connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop and / or connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop; the cooling loop on-off unit is used for bypassing a hydraulic retarder cooling loop; the temperature detection unit is used for detecting the environment temperature, the cooling liquid temperature and / or the cylinder cover temperature. The electric control unit controls the heat management valve, the electronic water pump, the electronic fan and the air inlet grid switch according to temperature signals. And the electric control unit controls the cooling loop on-off unit according to the working state of the hydraulic retarder so as to connect and disconnect the hydraulic retarder cooling loop and the engine cooling loop. Therefore, the engine and the hydraulic retarder share one set of cooling loop, and the cooling loop is switched on and off according to the working state of the hydraulic retarder, so that the vehicle has good heat dissipation performance.

A cooling system, comprising: - a first cooling circuit (10), the first cooling circuit having a first coolant pump (12); - a second cooling circuit (20), the second cooling circuit having a second coolant pump (22); - an expansion tank (30), the expansion tank being provided with an expansion chamber (31) for accumulating coolant, wherein the expansion chamber is connected to the second cooling circuit (20) so as to allow the expansion chamber to receive coolant from the second cooling circuit; and - a degassing device (40), the degassing device being arranged in the first cooling circuit for separating bubbles from the coolant circulating therein. The degassing device (40) is located at a position lower than the expansion tank (30) and is connected to the expansion chamber (31) via a static pipeline (5) so as to allow the bubbles separated from the coolant in the degassing device to migrate upward in the static pipeline towards the expansion chamber.

The mobile hydrogen energy power generation system comprises a hydrogen engine, the output end of the hydrogen engine is connected with the input end of a power generator, and the power generator is electrically connected with a battery pack; a hydrogen inlet of the hydrogen engine is connected with a hydrogen outlet of the buffer tank through a first hydrogen supply pipe set, a hydrogen inlet of the buffer tank is connected with a hydrogen source through a second hydrogen supply pipe set, a third hydrogen supply pipe set is installed on the second hydrogen supply pipe set in a matched mode, and the end of the third hydrogen supply pipe set is connected with a gas port of the solid hydrogen storage module. The solid hydrogen storage module is filled with solid hydrogen storage materials, a fourth hydrogen supply pipe set is installed on the third hydrogen supply pipe set in a matched mode, and the end of the fourth hydrogen supply pipe set is connected with the other hydrogen inlet of the buffer tank. By arranging the solid hydrogen storage module, hydrogen can be stably supplied to the hydrogen engine, so that the generator can stably output electric energy, and the system is suitable for equipment or systems with high requirements for electric energy quality, good in safety and stability, low in overall energy consumption and low in power generation cost.

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.

A marine drive comprising a powerhead that causes rotation of a driveshaft, a gearcase that supports a propulsor for propelling the marine drive in a body of water, a steering housing disposed between the powerhead and the gearcase, wherein the driveshaft or an extension thereof extends through the steering housing is operatively coupled to the propulsor, and a steering mechanism configured to steer the gearcase about a steering axis relative to the steering housing. The gearcase and steering housing are connected at a steering joint through which at least one of cooling water from the body of water is conveyed to the powerhead throughout steering movement of the gearcase and exhaust from the powerhead is conveyed to the body of water throughout steering movement of the gearcase.

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.

An engine and a vehicle comprising same. The engine comprises a main cylinder body (10), end covers (30), a timing cover (50), and an oil pan (60), wherein a left cylinder body (101) and a right cylinder body (102) of the main cylinder body are arranged in the left-right direction; the left cylinder body and the right cylinder body define a crankshaft cavity (20); the left cylinder body and the right cylinder body are each provided with a combustion chamber (11) extending in the horizontal direction; the end covers comprise a left cylinder cover (301) provided on the left side of the left cylinder body and a right cylinder cover (302) provided on the right side of the right cylinder body; the timing cover is located on one side of the main cylinder body and is fixed to at least one of the left cylinder body, the right cylinder body, the left cylinder cover and the right cylinder cover; the oil pan is arranged on the lower portion of the main cylinder body and is communicated with the crankshaft cavity.

The embodiment of the invention provides a cylinder cover assembly, a horizontally-opposed engine, a hybrid power assembly and a vehicle, the cylinder cover assembly comprises a body, an air flow channel and a cooling liquid channel are arranged in the body, and the body comprises a lower side and an upper side which are arranged in a deviating mode in the vertical direction; the airflow channel comprises an air inlet and an air outlet, the air inlet is formed in the lower side, and the air outlet is formed in the upper side; the cooling liquid channel surrounds at least part of the airflow channel and comprises a water inlet and a water outlet, the water inlet is formed in the lower side, and the water outlet is formed in the upper side. The air inlet of the airflow channel and the water inlet of the cooling liquid channel are formed in the lower side, and the exhaust port of the airflow channel and the water outlet of the cooling liquid channel are formed in the upper side, so that the influence of bubbles on cooling liquid flowing can be reduced, accumulation of the bubbles can be avoided, and the cooling effect of the cylinder cover assembly can be improved.

A shutter device includes a frame, an opening-closing portion, and a protrusion. The frame is disposed between a first heat exchanger and a second heat exchanger and defines an inner space through which air introduced from a grill opening of a vehicle flows in an airflow direction. Each of the first heat exchanger and a second heat exchanger has a core and a remaining portion other than the core. The opening-closing portion is configured to selectively open and close the inner space of the frame. The protrusion protrudes, in a direction parallel to the airflow direction, from the frame toward the remaining portion of at least one of the first heat exchanger or the second heat exchanger.

This cup-plate type heat exchanger has a lower end plate 2 that is thicker than each of second plates 5. In a state in which plates 2, 3, and 5 are stacked, each of inner fins 4 is provided between the lower end plate 2 and the first plate 3 fitted inside the lower end plate and between the second plate 5 and the first plate 3 fitted inside the second plate, and an angle α of a first inclined portion 6 of the lower end plate 2 is formed smaller than an angle β of a first inclined portion 8 of each of the second plates 5.

A cooling system for a drive assembly in a hybrid or electric vehicle includes a reservoir that contains and supplies fluid for a first coolant circuit, which is conveyed by a pump from a sump into an interior of a housing for the reservoir, wherein there is at least one coolant line for a second coolant circuit on and / or in the housing with which coolant is conveyed from power electronics to a heat exchanger.

A system for operating at least a pair of pumps using a driver. The driver can be coupled to a first portion of a first drive shaft that is not positioned in within an interior area of a thermal fluid tank of a first thermal circuit. A magnetic coupling can couple the first portion to a second portion of the first drive shaft that is within the thermal fluid tank. Rotational displacement of the first portion of the first drive shaft can be translated, via the magnetic coupling, to the second portion of the first drive shaft to drive a first fluid pump. The first portion of the first drive shaft can also be coupled to a second drive shaft by a clutch, the second drive shaft being used to operate a second fluid pump that provides a force for circulating a second thermal fluid of a second thermal circuit.

An engine cooling system, comprising a cylinder block, a cylinder head, a water pump, a warm air branch and a temperature control branch; the cylinder block and the cylinder head cooperate to form a cylinder circulation branch; the warm air branch is disposed between a first outlet of the cylinder head and an inlet of the water pump, and comprises a bypass valve and a warm air core arranged in series; the temperature control branch comprises a temperature control module, an inlet of the temperature control module being connected to the first outlet of the cylinder block, and an outlet of the temperature control module being connected to the inlet of the water pump; an outlet of the water pump is connected to a first inlet of the cylinder block. Also provided are an engine cooling system control method, a controller, an automobile and a computer-readable storage medium. The engine cooling system uses the cylinder circulation branch to achieve a series cooling effect, and the temperature control branch and the warm air branch to achieve a shunt cooling effect; this can achieve compatibility between series cooling and parallel cooling to ensure a cooling effect thereof.

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.

The present invention relates to a cooling module including a first radiator, and a second radiator stacked and disposed at an upstream side of the first radiator based on a flow direction of cooling air, in which the first radiator includes a main inlet port connected to an engine so that a coolant is introduced through the main inlet port, a main discharge port through which the coolant is discharged, an auxiliary discharge port connected to a third radiator, which is installed at a position that does not overlap the first radiator and the second radiator in the flow direction of the cooling air, so that the coolant is discharged through the auxiliary discharge port, and an auxiliary inlet port through which the coolant is introduced, such that the first radiator may be easily connected to the third radiator, which may improve cooling performance.