136 results about "Radiator (engine cooling)" patented technology

An vehicle rooftop cooling system includes a radiator located outside of the engine compartment of a vehicle, the radiator having a liquid coolant inside the radiator; a fan coupled to the radiator and configured to extract hot air from the radiator; a first sensor proximate to the radiator configured to measure coolant temperature of the coolant in the radiator; and a controller communicably coupled to the first sensor, the controller configured to receive inputs from the first sensor, to make determinations based on the received inputs, and to communicate control signals across a controller area network (CAN) in response to said determinations, wherein the controller is further configured to communicate a first control signal to cool the liquid coolant upon determining that the first sensor has measured temperature above a threshold.

The invention provides an engine cooling device capable of suitably promoting the warm-up of an engine. This engine cooling device comprises a cooling circuit and a heat-accumulating passage. The cooling circuit is composed of a radiator passage, a bypass passage, and a flow rate control value for controlling the flow rate of coolant flowing though the bypass passage. The heat-accumulating passage is provided with a heat-accumulating container, and constitutes a heat-accumulating circuit for causing coolant in the heat-accumulating container to circulate via the engine. The cooling device completes the heat-accumulating circuit by connecting the heat-accumulating passage to the cooling circuit to supply the cooling medium in the heat-accumulating container to the body of the engine, opens the flow rate control valve to increase a flow rate of cooling medium flowing though the bypass passage, then disconnects the heat-accumulating passage from the cooling circuit, and closes the flow rate control valve.

A cooling system for use in association with an engine encased within an engine compartment, having a remotely positioned cooling fan and radiator. The cooling system includes a containment member operably positioned within the engine compartment. The containment member includes an exposure opening which defines a cavity. The cooling system likewise includes a conduit associated with the containment member. The conduit includes a first end placed in fluid communication with the cavity and a second end extending outside of the engine compartment which is placed in fluid communication with the cooling fan. Circulation of the fan directs the passage of fluid from within the cavity and the conduit.

The invention discloses an engine coolant waste heat utilization engine warming system adopting a solid-liquid phase change heat reservoir and a method of the engine coolant waste heat utilization engine warming system. The system comprises a temperature sensor, an electronic thermostat, an electronic fan, a radiator, the solid-liquid phase change heat reservoir, an electronic three-way valve and an MCU. Coolant flows through the phase change heat reservoir to heat phase change materials. The phase change happens to the phase change materials, the phase change materials absorb a large amount of latent heat, and residual heat of an engine is transferred into the phase change heat reservoir to be stored and used for starting engine warming. The electronic thermostat and the electronic three-way valve are controlled by the MCU and kept running synchronously all the time. The premise that normal work of an engine cooling system is not influenced is ensured. After the engine stops, large circulation is closed through the electronic thermostat and the electronic three-way valve. The phase change heat reservoir is sealed and enters the energy preservation state. Thus, under the condition that the existing engine power consumption is hardly increased, waste heat recycle is achieved. The engine warming starting process is achieved under the condition that the engine power consumption is not increased.

The invention discloses an automobile supercharged engine cooling system and a control method thereof. A radiator is divided by a partition plate into a high-temperature radiator and a low-temperature radiator. An inner water way of an engine cylinder body is divided into an exhaust side cylinder cover water way and a cylinder body and air inlet side cylinder cover water way, wherein the liquid inlet end of the exhaust side cylinder cover water way is connected with a mechanical water pump. The liquid inlet end of the exhaust side cylinder cover water way is provided with a first temperature adjuster connected with the liquid inlet end of the cylinder body and air inlet side cylinder cover water way. The liquid outlet end of the exhaust side cylinder cover water way and the liquid outlet end of the cylinder body and air inlet side cylinder cover water way are sequentially connected with a warm air core and an engine oil cooler through a first water return pipe, wherein the engine oil cooler is connected with the mechanical water pump. The first water return pipe is connected with a second water return pipe through a second temperature adjuster, and the second water return pipe is connected with the high-temperature radiator. The automobile supercharged engine cooling system comprises an electronic water pump, the electronic water pump is connected with the liquid inlet end of a turbine supercharger and the liquid inlet end of an intercooler, and the liquid outlet end of the turbine supercharger and the liquid outlet end of the intercooler are connected with the liquid inlet end of the low-temperature radiator. By means of the automobile supercharged engine cooling system and the control method thereof, engine cylinder body and cylinder cover cooling can be accurately controlled, and the cooling performance of various loops is achieved.

The invention relates to the field of engineering machinery, and discloses a vehicle cooling system, a control device and a control method of the vehicle cooling system, and engineering machinery. The vehicle cooling system comprises a heat radiator, a first fan, a second fan, an engine cooling pipeline and a hydrodynamic retarder cooling pipeline, wherein the first fan is arranged in a first cooling area of the heat radiator; the second fan is arranged in a second cooling area of the heat radiator; the engine cooling pipeline is connected with the hydrodynamic retarder cooling pipe to form a cooling loop; and the cooling loop is provided with a cooling liquid outlet and a cooling liquid inlet which are respectively communicated with the outlet end and the inlet end of the heat radiator. Compared with the prior art, the cooling effect of the vehicle cooling system can meet cooling requirements under different situations, so that the cooling ability of the system can be guaranteed, the cooling efficiency of the system is improved, and unnecessary energy waste is avoided; in addition, the vehicle cooling system is low in cost and occupies a small space.

The invention provides a radiator plate-typed sealing strip assembly in an automobile engine cooling system and a manufacturing process thereof. The radiator plate-type sealing strip assembly in the automobile engine cooling system consists essentially of EPDM rubber, carbon black and the like; the manufacturing process mainly comprises the steps of: synthesizing rubber, sulfur treatment, trimming, two-process sulfur treatment, testing and putting into storage. The radiator plate-type sealing strip assembly manufactured by the process has good tensile strength at break, good elongation at break, good tear strength, good compression deformation and time effect of high-temperature resistance and cooling fluid resistance, thus ensuring good sealing property.

The invention discloses an engine water-flow testing measuring device. The engine water-flow testing measuring device comprises a variable-frequency and variable-speed motor, an engine water pump, an engine, a thermostat assembly, a heater, a first flow meter, a warm air part, an engine oil cooler, a second flow meter, a heat sink, a pressure sensor, a temperature sensor, a PLC heating controller, a variable-frequency motor controller and a data collecting system. The data collecting system measures the flow distribution of the warm air part according to flow signals collected by the first flow meter, and obtains the flow resistance of the engine water pump, the engine, the warm air part, the engine oil cooler and the heat sink according to pressure signals collected by the pressure sensor. According to the engine water-flow testing measuring device, a dynamometer and whole-vehicle resources do not need to be occupied; in the state that only a cooling system sample piece exists in the initial stage of development, the measurement of the flow distribution and the flow resistance of an engine cooling system can be completed in five workdays, the design problems of the cooling systems are exposed in advance, and development risks are reduced.

The invention relates to a vehicle thermal management system, a control method thereof and a vehicle. The vehicle thermal management system comprises a battery and electric drive thermal management system and an engine thermal management system. The air conditioning system exchanges heat with the battery and electric drive heat management system through a heat exchanger; the engine heat managementsystem comprises an engine cooling liquid flow path trunk, a first engine cooling liquid flow path branch and a second engine cooling liquid flow path branch, an engine and a first radiator are arranged on the engine cooling liquid flow path main circuit. The engine cooling liquid flow path main path is selectively communicated with the engine cooling liquid flow path first branch path or the engine cooling liquid flow path second branch path, and the engine cooling liquid flow path first branch path exchanges heat with the battery and electric drive heat management system through a heat exchanger. When the vehicle is in a hybrid drive mode, the battery may be heated with the engine.

The invention discloses an automotive carpet radiant heating system. The automotive carpet radiant heating system comprises an automotive carpet, an automobile body floor, an engine cooling system, a flow regulating valve and a plurality of coiled radiators, wherein the engine cooling system comprises an engine, a radiator and a water pump; a water inlet of the water pump is connected to a coolant outlet of the engine through a pipeline, the plurality of coiled radiators are connected in parallel and arranged between the automotive carpet and the automobile body floor, an inlet of the flow regulating valve is connected to a water outlet of the water pump through a pipeline, a first outlet of the flow regulating valve is connected to a water inlet of the radiator through a pipeline, a water outlet of the radiator is connected to a coolant inlet of the engine through a pipeline, a second outlet of the flow regulating valve is connected to water inlets of the plurality of coiled radiators through pipelines, and water outlets of the plurality of coiled radiators are connected to the coolant inlet of the engine through pipelines. By means of the heating system, the temperature of the automotive carpet can be balanced, so that the temperature of the air in a carriage is evenly distributed, and the comfort is improved.

The invention relates to a vehicle heat management system and a vehicle. The vehicle heat management system comprises an engine cooling loop, an air conditioner heating loop and a fluid switching device, an engine, a first water pump and a first radiator are arranged on the engine cooling loop, a heater, a second water pump and a warm air core body are arranged on the air conditioner heating loop,the engine cooling liquid loop is connected with the air conditioner heating loop through the fluid switching device, and the fluid switching device is used for controlling the engine cooling loop and the air conditioner heating loop to be selectively independent of each other or be in fluid communication with each other. According to the vehicle heat management system, fluid connection can be established between the engine cooling loop and the air conditioner heating loop, so that waste heat of the engine is reasonably utilized for heating the passenger compartment, the utilization rate of whole vehicle energy can be increased, and whole vehicle energy loss is reduced.

The invention discloses a whole vehicle thermal management system of a hybrid electric vehicle. The whole vehicle thermal management system comprises an expansion machine, a heat exchanger, a condenser, a water tank, a pump, a battery pack heat exchanger, a motor radiator, an engine cooling water jacket, an engine tail gas heat exchanger, a valve and other components, different system operation modes can be adjusted by controlling the opening and closing and the opening degree of the valve in a thermal management circuit, and connection in series / in parallel of an electric system and engine system thermal management branches is realized, the heat dissipation requirement and the preheating requirement are met, and the flow regulation of each branch is realized to adapt to thermal managementrequirements under different driving conditions of the hybrid electric vehicle. According to the whole vehicle thermal management system, the expansion machine, the condenser and the heat exchanger are simultaneously used, and waste heat recovery and utilization are realized. The heat exchanger is connected with an air conditioner / heat pump system to realize additional thermal management on a power system. The whole system is high in integration level, small in occupied space and wide in application working condition, and can effectively improve the energy utilization efficiency of the wholevehicle.

The invention discloses a thermal management system of a hybrid electric vehicle. The thermal management system comprises an electric drive cooling loop and an engine cooling loop; the electric drivecooling loop is suitable for carrying out thermal management on an electric driving part through the electric driving part, and is provided with a first water pump and a first radiator; the engine cooling loop comprises a turbocharging cooling branch and a heat dissipation branch; the two ends of the turbocharging cooling branch are communicated with the two ends of the electric driving part correspondingly, and the turbocharging cooling branch is provided with a first valve and a turbocharger assembly; and the heat dissipation branch passes through an engine and is suitable for conducting thermal management on the engine, and the heat dissipation branch is provided with a second radiator. The hybrid electric vehicle thermal management system disclosed by the invention is relatively high in part integration degree, and has the advantages of high efficiency and energy conservation.

An engine coolant system includes a variable-opening valve having a plurality of tubes in fluid flow communication with an engine block and a radiator. The coolant system also includes an electrically-powered pump arranged to cycle coolant through the radiator and the engine block to regulate an engine temperature. The coolant system further includes a controller programmed to store a baseline relationship between pump speed and pump power draw using a nonlinear scale. The controller is also programmed to detect a steady state operating condition of the pump, and identify an operational relationship between real-time pump speed and a pump power draw. The controller is further programmed to detect a coolant leak based on a deviation between the baseline relationship and the operational relationship.

The invention relates to an engine cooling system with separately-arranged cylinder head and exhaust manifold water sleeves. The engine cooling system comprises a water pump, a cylinder water sleeve arranged inside a cylinder and connected and communicated with an outlet of the water pump, a cylinder head water sleeve arranged inside a cylinder head and communicated with the cylinder water sleeve through a cylinder gasket hole, a radiator, a fan heater and an engine oil cooler which are connected and communicated with a water outlet of the cylinder head of the cylinder head water sleeve, and a thermostat connected with the radiator, and further comprises the exhaust manifold water sleeve arranged inside the cylinder head. The exhaust manifold water sleeve is provided with an exhaust manifold water sleeve water inlet and an exhaust manifold water sleeve water outlet. The exhaust manifold water sleeve water inlet and the outlet of the water pump are directly connected and communicated. The exhaust manifold water sleeve water outlet is connected with the thermostat, and switching control is performed through actions of the thermostat. The radiator, the fan heater, the engine oil cooler and the exhaust manifold water sleeve are connected and communicated with the water inlet of the water pump through a water through pipe. The cylinder head water sleeve and the exhaust manifold water sleeve can be separated, and independent control over the exhaust manifold water sleeve can be achieved.

The invention provides a thermostat diagnosis method. Compared with the situation that an existing engine thermal management system possibly has certain defects in design for a vehicle of which the temperature rise of a second-channel water temperature sensor is obvious before a thermostat is started, under the conditions of not changing the structure of the existing thermal management system andnot increasing the hardware cost, according to the diagnosis method, the thermostat is subjected to diagnosis by calculating the difference between the one-channel water temperature and the two-channel water temperature, so that the reliability of the diagnosis is improved, the cost and workload for changing an engine thermal management system are saved, and the applicability to different engine heat management systems is high; besides, compared with the situation that installation is inconvenient and the installation cost is high due to the fact that an existing diagnosis strategy limits thesecond-channel water temperature sensor to be arranged on a radiator, according to the thermostat diagnosis method, the second-channel water temperature sensor only needs to be arranged at the position, adjacent to the thermostat, of a second cooling pipeline, so that installation is convenient, and the cost is low.

A structure of an engine cooling system comprises a cylinder body water jacket, a cylinder cover water jacket, a cylinder cushion, a water pump, an engine oil cooler and a booster. The structure of the engine cooling system is technically characterized in that the water pump is provided with a spoon-shaped water pump cavity and a thermostat, the water pump, the water pump cavity and the thermostat are communicated sequentially, the thermostat is respectively provided with a water pump water inlet I and a water pump water inlet II, and the water pump water inlet II is communicated with a heat radiator of a vehicle; the cylinder body water jacket is communicated with the water pump through a water inlet of the cylinder body water jacket, a water inlet pipe of the engine oil cooler, a water outlet pipe of the booster and a water outlet pipe of a heating system are respectively communicated with a water inlet pipe of the water pump, and the water inlet pipe of the water pump is communicated with the water pump water inlet I; the rear portion of the cylinder cover water jacket is provided with a water outlet of the cylinder cover water jacket, and the water outlet of the cylinder cover water jacket is communicated with a water inlet pipe of the booster. By the structure of the engine cooling system, the problems of high heat load of the cylinder cover, poor comprehensive performance and the like of existing engines are solved radically.

The invention discloses a one-dimensional and three-dimensional joint simulation method for an automobile engine cooling system. The method comprises the steps of using three-dimensional simulation software for estimating the thermal power of a radiator, an intercooler and a condenser, taking constant values as the thermal power of the condenser, and then obtaining the outlet air volume of a radiator core, the outlet air volume of the intercooler core and the surface temperature average value of a core inlet; performing one-dimensional system simulation calculation by utilizing one-dimensionalsimulation software based on the air volume and the temperature average value to obtain the thermal power of the radiator and the intercooler; obtaining outlet air volumes of a radiator core, an intercooler core and a condenser core and a surface temperature average value of a core inlet by using three-dimensional simulation software according to the thermal power of the radiator, the intercoolerand the condenser; and repeatedly executing the steps to perform iterative computation until convergence conditions are met. The advantages of the one-dimensional simulation software and the advantages of the three-dimensional simulation software are fully utilized, simulation errors caused by heat reflux are reduced through repeated iteration, and the simulation precision of the water temperature of the cooling system is improved.

Methods and systems are provided for expediting engine cooling while reducing the overall energy consumption of the engine cooling system's components. A first circulation pump is used to pump coolantthrough an engine block as a function of engine output while a second radiator pump is selectively operated when a thermostat valve is open to pump coolant through a radiator and the engine block toeffect the engine coolant temperature. Operation of the second pump is coordinated with the operation of a radiator cooling fan and grille shutters to improve radiator performance.

The invention provides a vehicle exterior temperature obtaining system and method. The vehicle exterior temperature obtaining system comprises a vehicle exterior temperature sensor, an engine cooling water temperature detector and a storing memory module, wherein the vehicle exterior temperature sensor, the engine cooling water temperature detector and the storing memory module are connected with a logical processing unit; and the logical processing unit and the storing memory module are arranged in an automatic air condition controller. The vehicle exterior temperature obtaining system and the method provided by the invention are executed. The method comprises the following steps of according to the logical comparison operation of the temperature value of cooling water, the value of the vehicle exterior temperature sensor and the memory value of the storing memory module, judging the cold starting condition and the hot starting condition of a vehicle when the vehicle is started, and obtaining the accurate vehicle exterior temperature. According to the vehicle exterior temperature obtaining system and the method disclosed by the invention, under a low-power dissipation situation that the automatic air conditioner controller cuts off own power supply, after reigniting is performed again for operating the vehicle, the cold-vehicle condition and the hot-vehicle condition of the vehicle can be accurately judged, the vehicle exterior temperature sensor can also be free from the influence of a radiator and a hot water tank, and an initial value of the vehicle exterior temperature which is close to the actual environmental temperature is obtained.

The invention discloses a novel helicopter water-cooled engine cooling system. The helicopter novel water-cooled engine cooling system mainly comprises a main rotor system, an engine, an engine water outlet pipe, a radiator, an expansion box (provided with a water filling port), an overflow bottle, an engine water inlet pipe and the like. The novel helicopter water-cooled engine cooling system mainly solves the problems that a conventional helicopter water-cooled cooling system conducts heat dissipation by means of an electronic fan, is complex in system and needs to consume precious electric energy on a helicopter, the cooling efficiency is low, and the cooling system occupies precious engine space. According to the novel helicopter water-cooled engine cooling system, helicopter rotor downwash serves as a cooling source, an electronic fan is not needed, the whole helicopter mechanical and circuit structure is simplified, the structural weight is reduced, the electric energy and the loading space on the helicopter are saved, the environmental adaptation is enhanced, and the cooling efficiency is improved. The calculation result of the induced velocity distribution of the downwash 0.2R below a rotor disk is shown in the Figure 3. Since the wake shrinks and a calculation point at the radius of the rotor disk is located outside the wake, an upward induced velocity exists. According to the induced velocity distribution, the calculation result is reasonable and credible; the induced velocity is maximized at 0.7R.

The invention provides an efficient hybrid engine cooling system. The efficient hybrid engine cooling system comprises a mechanical pump, a first one-way valve, a cylinder cover water jacket, an engine body water jacket, a supercharger cooling water channel, an EGR cooler, a temperature regulator, an engine oil cooler, a radiator, an electronic water pump and a second one-way valve. A water outletof the mechanical pump is communicated with a water inlet of the engine oil cooler and an inlet of the first one-way valve through pipelines, and an outlet of the first one-way valve is communicatedwith a water inlet of the cylinder cover water jacket through a pipeline. A water outlet of the cylinder cover water jacket is respectively communicated with a water inlet of the supercharger coolingwater channel and a water inlet of the engine body water jacket through pipelines. According to the efficient hybrid power engine cooling system, the combination of the mechanical pump and the electronic water pump is adopted, the system can still operate during shutdown, the engine body, the cylinder cover, the supercharger and the EGR cooler can still be effectively cooled, accelerated damage caused by waste heat is avoided, and the operation reliability of the engine is kept.

An air conditioning device capable of detecting cooling water leakage in an engine cooling device with high efficiency. In this air conditioning device, the compressor 16 installed on the outdoor unit is driven by the engine 30, and has an engine cooling device that uses a cooling water circulation pump to circulate and cool the cooling water of the engine in the radiator, including detecting the cooling water circulation pump 47. A driving current detection unit 51 and a determination unit 13 that determines the occurrence of bite in the cooling water circulation pump 47 based on the detection value.

The invention provides a cooling system of a hybrid vehicle, and the hybrid vehicle, and belongs to the field of vehicle cooling. The cooling system comprises an engine cooling loop, a transmission cooling loop and a battery module cooling loop; all the cooling loops can communicate with one another through a thermal management module and are connected with a radiator through the thermal management module; and the thermal management module judges the driving state of the vehicle by monitoring states signals of a battery module, an engine and a transmission, a preset signal is determined, thencorrecting is conducted according to measurement results of all temperature sensors, an output signal is determined, and the cooling water flow of all the cooling loops is adjusted. The engine coolingloop, the transmission cooling loop and the battery module cooling loop are integrated to be controlled in a unified mode, the thermal load of the battery module is effectively utilized, the temperature during starting of the engine and the transmission is provided, and emission and fuel consumption of the vehicle are lowered; and meanwhile, the heat loss of the vehicle is lowered by independently controlling all the cooling loops, and the reliability of the vehicle is improved.

The invention discloses an engine cooling system which comprises a thermostat, a mechanical water pump, a radiator, a cylinder block water jacket, a cylinder cover water jacket and a warm air pipelinesubsystem, wherein the mechanical water pump, the cylinder block water jacket and the radiator form a complete water path circulation; the thermostat is arranged between the mechanical water pump andthe radiator and is used for controlling on-off between the mechanical water pump and the radiator; the cylinder block water jacket communicates with the cylinder cover water jacket; the water outletof the cylinder cover water jacket communicates with the water inlet of the warm air pipeline subsystem; the water outlet of the warm air pipeline subsystem communicates with the water inlet of the mechanical water pump; a first stop valve is arranged between the cylinder cover water jacket and the warm air pipeline subsystem and is used for controlling on-off between the cylinder cover water jacket and the warm air pipeline subsystem. When the engine is at a low temperature, the radiator and the warm air pipeline subsystem do not participate in circulation, and radiating devices are reduced,so that the engine can reach the normal working temperature as quickly as possible.

The invention relates to an engine cooling fan control method and system and an engine cooling system, and belongs to the technical field of engine heat management. The method comprises the following steps: 1) acquiring current environment temperature information and engine load state information; (2) the environment temperature grade of the current environment temperature is judged; judging the engine load state grade to which the current engine load state belongs; 3) matching a corresponding fan control interval according to the corresponding relationship among the environment temperature grade, the engine load state grade and the fan control interval; and 4) correspondingly adjusting the rotating speed of the radiator fan and / or correspondingly adjusting the rotating speed of the intercooler fan according to the set value of the matched fan control interval. The radiator fan and / or the intercooler fan can be correspondingly adjusted according to the current environment temperature and the load grade of the engine, the adaptability of the engine cooling system to the external environment and the vehicle load state can be improved, and it is guaranteed that the engine works in the optimal state.

The invention relates to the technical field of engines, in particular to an efficient hybrid engine cooling system and an engine cooling method. The efficient hybrid engine cooling system comprises amain mechanical water pump, a cylinder cover water jacket, a cylinder body water jacket, an EGR cooler, a temperature regulator and a radiator which are sequentially communicated end to end to form water circulation. A second one-way valve and an electronic water pump are sequentially connected between the water inlet end of the cylinder cover water jacket and the water outlet end of the EGR cooler in series, a first one-way valve is arranged on a main water way between an engine oil cooler and the second one-way valve, and the circulation direction of the first one-way valve is consistent with that of the main water way. The circulation direction of the second one-way valve is set to be the direction from the electronic water pump to the second one-way valve. According to the system andthe method, a circulation loop is the shortest after an engine is shut down, the resistance is low, the heat dissipation efficiency of a turbocharger is improved, and the operation reliability of theengine is maintained.

The invention provides an efficient hybrid engine cooling system. The efficient hybrid engine cooling system comprises a mechanical pump, a first one-way valve, a cylinder cover water jacket, a machine body water jacket, a supercharger cooling water channel, an EGR cooler, a thermolator, an oil cooler, a radiator, an electronic water pump and a second one-way valve; a water outlet of the mechanical pump communicates with an inlet of the first one-way valve through a pipeline, an outlet of the first one-way valve correspondingly communicates with a water inlet of the cylinder cover water jacketand a water inlet of the oil cooler through a pipeline, and a water outlet of the cylinder cover water jacket correspondingly communicates with a water inlet of the supercharger cooling water channeland a water inlet of the machine body water jacket through a pipeline. According to the efficient hybrid engine cooling system, the combination of the mechanical pump and the electronic water pump isadopted, the efficient hybrid engine cooling system still operates during machine halt, a machine body, a cylinder cover, a supercharger and the EGR cooler can be still effectively cooled and cannotbe rapidly damaged due to waste heat, and the operation reliability of an engine is kept.