CN210239843U - High-low temperature circulating cooling system of engine - Google Patents
High-low temperature circulating cooling system of engine Download PDFInfo
- Publication number
- CN210239843U CN210239843U CN201920882788.1U CN201920882788U CN210239843U CN 210239843 U CN210239843 U CN 210239843U CN 201920882788 U CN201920882788 U CN 201920882788U CN 210239843 U CN210239843 U CN 210239843U
- Authority
- CN
- China
- Prior art keywords
- temperature
- cooling system
- engine
- intercooler
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model belongs to the technical field of the engine, a high low temperature circulative cooling system of engine is disclosed. This engine high low temperature circulative cooling system, including mutually independent high temperature circulative cooling system and low temperature circulative cooling system, low temperature circulative cooling system includes the low temperature water pump, the flow divider, main intercooler and interstage intercooler, the low temperature water pump is used for exporting the coolant liquid, the one end of flow divider communicates in the export of low temperature water pump, the other end communicates in main intercooler and interstage intercooler respectively, the flow divider is used for distributing the flow that lets in the coolant liquid in main intercooler and interstage intercooler, main intercooler and interstage intercooler set up side by side and all are linked together with the low temperature water pump. The flow dividing valve of the high-low temperature circulating cooling system of the engine has a flow dividing effect, the cooling capacity of the main intercooler and the inter-stage intercooler is improved, and the air inlet temperature after intercooling is effectively reduced, so that the economical efficiency and the dynamic property of the engine are improved.
Description
Technical Field
The utility model relates to the technical field of engines, especially, relate to a high low temperature circulative cooling system of engine.
Background
The existing engine cooling circulation system generally comprises a water pump, a radiator, a fan, a thermostat, a fan heater, an engine water jacket and other additional devices, wherein the water pump is used for forcing cooling liquid to flow in an engine for heat exchange, and the fan is used for carrying out heat convection with cooling media in all exchangers in an air cooling mode so as to take away heat of the cooling media in the exchangers, so that the engine is kept in a proper temperature range under all working conditions.
With the escalation of emission requirements and the demand for fuel economy, exhaust gas recirculation systems, supercharging systems, and the like are increasingly being used in engines, and supercharged air is generally cooled by an intercooler. Because the cooling capacity of intercooler directly influences the temperature of admitting air, present charge air does not get into the combustion chamber with the intercooler fully cooling just, can influence the gas charging efficiency of engine to influence engine economy and dynamic property, still lead to engine combustion temperature too high very easily simultaneously, cause trouble such as knockings, can increase the content of the nitrogen oxide in the engine waste gas moreover, cause air pollution.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high low temperature circulative cooling system of engine for reduce the inlet air temperature, reduce environmental pollution, and improve engine economy and dynamic property.
To achieve the purpose, the utility model adopts the following technical proposal:
an engine high-low temperature circulating cooling system comprises a high-temperature circulating cooling system and a low-temperature circulating cooling system which are independent of each other, wherein the low-temperature circulating cooling system comprises a low-temperature water pump, a flow dividing valve, a main intercooler and an interstage intercooler, the low-temperature water pump is used for outputting cooling liquid, one end of the flow dividing valve is communicated with an outlet of the low-temperature water pump, the other end of the flow dividing valve is communicated with the main intercooler and the interstage intercooler respectively, the flow dividing valve is used for distributing flow of the cooling liquid in the main intercooler and the interstage intercooler, and the main intercooler and the interstage intercooler are arranged in parallel and are communicated with the low-temperature water pump.
Preferably, the low-temperature circulating cooling system further comprises a low-temperature expansion water tank, one end of the low-temperature expansion water tank is communicated with the main intercooler and/or the inter-stage intercooler, and the other end of the low-temperature expansion water tank is communicated with an inlet of the low-temperature water pump.
Preferably, the low-temperature expansion water tank is communicated with the main intercooler and/or the interstage intercooler through a low-temperature air release pipe.
Preferably, the low-temperature expansion water tank is communicated with the low-temperature water pump through a low-temperature water replenishing pipe.
Preferably, the low-temperature circulating cooling system further comprises a low-temperature radiator, one end of the low-temperature radiator is respectively communicated with the main intercooler and the inter-stage intercooler, and the other end of the low-temperature radiator is communicated with an inlet of the low-temperature water pump.
Preferably, the high-temperature circulating cooling system comprises a high-temperature water pump, an engine water jacket and a thermostat which are connected in series, wherein an inlet of the high-temperature water pump is communicated with the thermostat, so that the engine water jacket forms a first cooling cycle; and a high-temperature radiator is arranged between the thermostat and the inlet of the high-temperature water pump, so that the high-temperature water pump, the engine water jacket, the thermostat and the high-temperature radiator form a second cooling cycle.
Preferably, the high-temperature circulating cooling system further comprises an EGR cooler, an oil cooler and a water outlet pipe, wherein two ends of the water outlet pipe are respectively communicated with the thermostat and the engine water jacket, the EGR cooler and the oil cooler are arranged in parallel, and two ends of the EGR cooler and two ends of the oil cooler are respectively communicated with an outlet of the high-temperature water pump and the water outlet pipe.
Preferably, the high-temperature circulating cooling system further comprises a high-temperature expansion water tank, and two ends of the high-temperature expansion water tank are respectively communicated with the inlet of the high-temperature water pump and the water outlet pipe.
Preferably, the high-temperature circulating cooling system further comprises a fan heater and a urea box which are connected in parallel, and two ends of the fan heater and two ends of the urea box are respectively communicated with the water outlet pipe and the inlet of the high-temperature water pump.
Preferably, the high-temperature circulating cooling system further comprises a retarder and an air compressor, one end of the retarder is communicated with the engine water jacket, the other end of the retarder is communicated with the water outlet pipe, one end of the air compressor is communicated with the engine water jacket, and the other end of the air compressor is communicated with the water outlet pipe or an inlet of the high-temperature water pump.
The utility model has the advantages that:
the utility model provides a high low temperature circulative cooling system of engine, the coolant liquid is behind the low temperature water pump pressurization, the low temperature water pump passes through the flow divider and carries the coolant liquid respectively to main intercooler and interstage intercooler in, the flow divider has played the reposition of redundant personnel effect, make main intercooler and interstage intercooler fully cool off admit air, the cooling capacity of main intercooler and interstage intercooler has been improved, effectively reduce the inlet air temperature behind the intercooling, all in appropriate within range with the refrigerated air temperature of assurance through main intercooler and interstage intercooler, make the inlet air temperature satisfy the matching demand of booster and engine burning, thereby improve engine economy and dynamic property. Meanwhile, the air inlet has lower temperature, so that the faults of knocking and the like are reduced, the content of nitrogen oxides in the waste gas of the engine is reduced, and the environmental pollution is reduced.
Meanwhile, the high-temperature circulating cooling system and the low-temperature circulating cooling system are independent from each other, so that mutual influence between the high-temperature circulating cooling system and the low-temperature circulating cooling system is reduced, and the cylinder and the air inlet temperature of the engine can be guaranteed to be within a lower temperature range, so that sufficient combustion is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of the high-low temperature circulating cooling system of the engine of the present invention.
In the figure:
101. a low-temperature water pump; 102. a flow divider valve; 103. a main intercooler; 104. an interstage intercooler; 105. a low temperature heat sink; 106. a low temperature expansion water tank; 107. a fan;
201. a high-temperature water pump; 202. an engine water jacket; 203. a thermostat; 204. a high temperature heat sink; 205. an EGR cooler; 206. an oil cooler; 207. a water outlet pipe; 208. a warm air blower; 209. a urea tank; 210. a high temperature expansion water tank; 211. a retarder; 212. an air compressor.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides a high-low temperature circulating cooling system of an engine, which is used for radiating heat of all parts so as to ensure that the engine is in a proper temperature range under any working condition. As shown in fig. 1, the engine high-low temperature circulating cooling system includes a high-temperature circulating cooling system and a low-temperature circulating cooling system which are independent of each other, the high-temperature circulating cooling system is used for cooling and radiating heat of the engine, the low-temperature circulating cooling system is used for cooling and radiating air intake, and the high-temperature circulating cooling system and the low-temperature circulating cooling system are used simultaneously when the engine works normally. The high-temperature circulating cooling system and the low-temperature circulating cooling system are independent from each other, so that mutual influence between the high-temperature circulating cooling system and the low-temperature circulating cooling system is reduced, and the cylinder temperature and the air inlet temperature of the engine can be guaranteed to be within a lower temperature range, so that sufficient combustion is guaranteed.
For a supercharged engine, air supercharged by a supercharger has high temperature, an intercooler is required to be arranged between the supercharger and an air inlet manifold, and the intercooler is used for reducing the temperature of the supercharged high-temperature air so as to ensure the air inflow of fresh air. Therefore, in order to ensure the cooling effect of the intercooler on the intake air, the low-temperature circulating cooling system comprises a low-temperature water pump 101, a diverter valve 102, a main intercooler 103, an inter-stage intercooler 104 and a low-temperature radiator 105, wherein the low-temperature water pump 101 is used for outputting cooling liquid, the main intercooler 103 and the inter-stage intercooler 104 are both arranged on the engine body, one end of the diverter valve 102 is communicated with the outlet of the low-temperature water pump 101, the other end of the diverter valve 102 is respectively communicated with the main intercooler 103 and the inter-stage intercooler 104, the diverter valve 102 is used for distributing the flow of the cooling liquid introduced into the main intercooler 103 and the inter-stage intercooler 104, the main intercooler 103 and the inter-stage intercooler 104 are arranged in parallel and are both communicated with the low-temperature water pump 101 through the low. Inter-stage intercooler 104 specifically represents a two-stage intercooler, a three-stage intercooler, a four-stage intercooler, and the like.
The engine high-low temperature circulating cooling system provided by the embodiment, after the cooling liquid is pressurized by the low-temperature water pump 101, the low-temperature water pump 101 conveys the cooling liquid into the main intercooler 103 and the interstage intercooler 104 through the diverter valve 102 respectively, the diverter valve 102 plays a diverting role, so that the main intercooler 103 and the interstage intercooler 104 can sufficiently cool the intake air, the cooling capacity of the main intercooler 103 and the interstage intercooler 104 is improved, the intake air temperature after intercooling is effectively reduced, the air temperature cooled by the main intercooler 103 and the interstage intercooler 104 is ensured to be in a proper range, the intake air temperature meets the matching requirement of combustion of a supercharger and an engine, and the economical efficiency and the dynamic property of the engine are improved. Meanwhile, the air inlet has lower temperature, so that the faults of knocking and the like are reduced, the content of nitrogen oxides in the waste gas of the engine is reduced, and the environmental pollution is reduced.
It should be particularly noted that the low-temperature water pump 101 is an electronic water pump, and the electronic water pump itself has functions of idle protection, overvoltage protection, and the like, and can control the flow of coolant water output by the electronic water pump according to the working condition of the engine. At the time of engine cold start, the low-temperature water pump 101 may output little or no coolant to warm up the engine as quickly as possible.
In order to further ensure the inlet air temperature, one end of a low-temperature radiator 105 is respectively communicated with a main intercooler 103 and an interstage intercooler 104, the other end of the low-temperature radiator 105 is communicated with an inlet of a low-temperature water pump 101, the low-temperature radiator 105 is cooled by a fan 107, the air pressurized by a supercharger is cooled by adopting a mode of combining air cooling and water cooling, and the cooling effect of cooling liquid in a low-temperature circulating cooling system on inlet air is ensured.
It is understood that, in order to reduce the influence of cooling cold in the high-temperature circulation cooling system on the cooling liquid in the low-temperature circulation cooling system, the low-temperature circulation cooling system and the high-temperature circulation cooling system are respectively provided with independent expansion water tanks, and therefore, the low-temperature circulation cooling system further comprises a low-temperature expansion water tank 106, one end of the low-temperature expansion water tank 106 is communicated with the main intercooler 103 and/or the inter-stage intercooler 104, and the other end is communicated with the inlet of the low-temperature water pump 101.
Since the cooling effect is affected if bubbles appear in the coolant due to the water circulation of the coolant, in order to solve this problem, the low-temperature expansion water tank 106 is communicated with the main intercooler 103 and/or the inter-stage intercooler 104 through a low-temperature bleed pipe, and the bubbles in the coolant are discharged by providing the low-temperature bleed pipe, thereby effectively ensuring the cooling effect. Meanwhile, the low-temperature expansion water tank 106 is communicated with the low-temperature water pump 101 through a low-temperature water replenishing pipe, so that the situation of evaporation reduction caused by high temperature of the cooling liquid is reduced, and the sufficient supply of the cooling liquid is ensured, thereby realizing the water replenishing effect of the low-temperature water tank on the low-temperature water pump 101.
It should be noted that, which intercooler is specifically connected to the low-temperature expansion water tank 106 for both the main intercooler 103 and the inter-stage intercooler 104 is determined according to the spatial arrangement position of both. For example: in this embodiment, the inter-stage intercooler 104 is located at the highest point of the spatial position, and the inter-stage intercooler 104 is communicated with the low-temperature expansion water tank 106, so that the bubbles in the cooling liquid are conveniently discharged because the bubbles move to the high position. Thus, in this embodiment, low temperature expansion water tank 106 may be in communication with main intercooler 103, or low temperature expansion water tank 106 may be in communication with inter-stage intercooler 104, or low temperature expansion water tank 106 may be in communication with both main intercooler 103 and inter-stage intercooler 104.
Optionally, the high-temperature circulating cooling system includes a high-temperature water pump 201, an engine water jacket 202, and a thermostat 203, which are connected in series with each other, and the high-temperature water pump 201 specifically uses an electrically controlled silicone oil pump, so that the high-temperature water pump 201 can work at different load factors under different working conditions, and power consumption is reduced. The inlet of the high-temperature water pump 201 is communicated with the thermostat 203, so that the engine water jacket 202 forms a first cooling cycle, namely a small cycle; a high-temperature radiator 204 is provided between the thermostat 203 and an inlet of the high-temperature water pump 201, so that the high-temperature water pump 201, the engine water jacket 202, the thermostat 203, and the high-temperature radiator 204 form a second cooling cycle, i.e., a large cycle. The thermostat 203 is used for adjusting large and small circulation, and when the temperature of the outlet water of the engine water jacket 202 is lower, the cooling liquid directly returns to the inlet of the high-temperature water pump 201 from the thermostat 203 to realize small circulation; when the outlet water temperature of the engine water jacket 202 is higher, the outlet water flows to the high-temperature radiator 204 first and then returns to the inlet of the high-temperature water pump 201, so that the large circulation is realized.
In order to realize the cooling of the engine, the high-temperature circulating cooling system further comprises an EGR cooler 205, an oil cooler 206, a water outlet pipe 207, a fan heater 208, a urea tank 209 and a high-temperature expansion water tank 210, wherein the EGR cooler 205 and the oil cooler 206 are arranged in parallel, two ends of the EGR cooler 205 and two ends of the oil cooler 206 are respectively communicated with an outlet of the high-temperature water pump 201 and the water outlet pipe 207, and two ends of the water outlet pipe 207 are respectively communicated with the thermostat 203 and the engine water jacket 202. Meanwhile, one end of the retarder 211 is communicated with the engine water jacket 202, the other end is communicated with the water outlet pipe 207, one end of the air compressor 212 is communicated with the engine water jacket 202, and the other end is communicated with the water outlet pipe 207 or the inlet of the high-temperature water pump 201
Wherein, the electric fan heater 208 is specifically vehicle air conditioner for adjust the indoor temperature of car, urea case 209 is used for holding urea, urea effect exhaust-gas treatment's reduction liquid, urea is used for handling waste gas, if the temperature is lower, urea can crystallize into the solid usually, thereby influence the treatment effect of waste gas, in order to solve this problem, with electric fan heater 208 and urea case 209 mutual parallel arrangement, in order to reduce mutual influence between them, the both ends of electric fan heater 208 and the both ends of urea case 209 are equallyd divide and are communicate respectively in outlet pipe 207 and the import of high temperature water pump 201, thereby guarantee that electric fan heater 208 and urea case 209 are all within the working range of preferred.
Specifically, the coolant at the outlet of the high-temperature water pump 201 is divided into three branches, the first branch flows into the water outlet pipe 207 through the EGR cooler 205, and the water outlet pipe 207 plays a role in branch collection; the second branch flows into a water outlet pipe 207 through an oil cooler 206; the third branch is divided into two sub-branches after passing through the engine water jacket 202, wherein one sub-branch flows into the water outlet pipe 207 through the retarder 211, and the other sub-branch flows back into the inlet of the high temperature water pump 201 or the water outlet pipe 207 through the air compressor 212 (not shown in the figure). Then after being collected by the water outlet pipe 207, the cooling liquid is subjected to heat dissipation treatment by the high-temperature heat sink 204 and then flows back to the inlet of the high-temperature water pump 201.
In order to supplement the coolant to the high-temperature water pump 201 in time, two ends of the high-temperature expansion water tank 210 are respectively communicated with the inlet of the high-temperature water pump 201 and the water outlet pipe 207. An expansion water tank is respectively arranged on the high-temperature circulating cooling system and the low-temperature circulating cooling system, so that the influence of cooling liquid in the high-temperature circulating cooling system on the temperature of the cooling liquid of the low-temperature circulating cooling system is effectively reduced, and the air cooling effect of the main intercooler 103 and the inter-stage intercooler 104 is ensured.
Because to the hydrologic cycle of coolant liquid, if the bubble appears in the coolant liquid can influence the cooling effect, in order to solve this problem, high temperature expansion tank 210 communicates in outlet pipe 207 through high temperature bleed pipe to through setting up high temperature bleed pipe, with the bubble discharge in the coolant liquid, thereby guaranteed the cooling effect effectively. Meanwhile, the high-temperature expansion water tank 210 is communicated with the inlet of the high-temperature water pump 201 through a high-temperature water replenishing pipe, so that the situation that evaporation is reduced due to the fact that the cooling liquid is subjected to high temperature is reduced, the cooling liquid can be sufficiently supplied, and the water replenishing effect of the high-temperature water tank on the high-temperature water pump 201 is achieved.
It should be noted that, the specific component connected to the high temperature expansion tank 210 is determined according to the spatial arrangement position. For example: in this embodiment, the water outlet pipe 207 is located at the highest point of the space position, and the water outlet pipe 207 is communicated with the high temperature expansion water tank 210, so that the bubbles in the cooling liquid can be discharged conveniently because the bubbles move to the high position.
It should be noted that the high-temperature radiator 204, the low-temperature radiator 105, and the warm air blower 208 are disposed at the front end of the engine, and exchange heat with the cooling medium by the fan 107 using air cooling.
The working process of the engine high-low temperature circulating cooling system provided by the embodiment is as follows:
for the low-temperature circulating cooling system, after cooling liquid is pressurized by the low-temperature water pump 101, the cooling liquid is respectively conveyed into the main intercooler 103 and the interstage intercooler 104 by the low-temperature water pump 101 through the diverter valve 102, the diverter valve 102 plays a role in diverting, the main intercooler 103 and the interstage intercooler 104 can fully cool air intake, then the cooling liquid flows back to an inlet of the low-temperature water pump 101 through the low-temperature radiator 105, meanwhile, the interstage intercooler 104 is communicated to the low-temperature expansion water tank 106 through a low-temperature air discharge pipe, and then the low-temperature expansion water tank 106 is communicated to the low-temperature water pump 101 through a low-temperature water replenishing pipe and used for replenishing.
For the high-temperature circulating cooling system, after the cooling liquid is pressurized by the high-temperature water pump 201, the cooling liquid at the outlet of the high-temperature water pump 201 is divided into three branches, the first branch flows into the water outlet pipe 207 through the EGR cooler 205, and the water outlet pipe 207 plays a role in branch collection; the second branch flows into a water outlet pipe 207 through an oil cooler 206; the third branch is divided into two sub-branches after passing through the engine water jacket 202, wherein one sub-branch flows into the water outlet pipe 207 through the retarder 211, and the other sub-branch flows back into the inlet of the high-temperature water pump 201 or the water outlet pipe 207 through the air compressor 212; then after the water outlet pipe 207 gathers, form four liquid ways, first liquid way: the cooling liquid in the water outlet pipe 207 directly flows back to the inlet of the high-temperature water pump 201 through the thermostat 203, so that a first cooling circulation, namely a small circulation, is formed; a second liquid path: the cooling liquid in the water outlet pipe 207 is controlled by the thermostat 203 to flow back to the inlet of the high-temperature water pump 201 through the high-temperature radiator 204, and a second cooling circulation, namely a large circulation, is formed; a third liquid path: the cooling liquid in the water outlet pipe 207 respectively flows back to the inlet of the high-temperature water pump 201 through the urea box 209 and the warm air blower 208; a third liquid path: the cooling liquid in the water outlet pipe 207 is communicated to the high-temperature expansion water tank 210 through a high-temperature air release pipe, and then the high-temperature expansion water tank 210 is communicated to the high-temperature water pump 201 through a high-temperature water replenishing pipe for replenishing the cooling liquid.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An engine high-low temperature circulating cooling system is characterized by comprising a high-temperature circulating cooling system and a low-temperature circulating cooling system which are independent of each other, wherein the low-temperature circulating cooling system comprises a low-temperature water pump (101), a flow dividing valve (102), a main intercooler (103) and an inter-stage intercooler (104), the low-temperature water pump (101) is used for outputting cooling liquid, one end of the flow dividing valve (102) is communicated with an outlet of the low-temperature water pump (101), the other end of the flow dividing valve is respectively communicated with the main intercooler (103) and the inter-stage intercooler (104), the flow dividing valve (102) is used for distributing the flow of the cooling liquid which is introduced into the main intercooler (103) and the inter-stage intercooler (104), and the main intercooler (103) and the inter-stage intercooler (104) are arranged in parallel and are both communicated with the.
2. An engine high-low temperature circulating cooling system according to claim 1, characterized in that the low temperature circulating cooling system further includes a low temperature expansion water tank (106), one end of the low temperature expansion water tank (106) is communicated with the main intercooler (103) and/or the inter-stage intercooler (104), and the other end is communicated with an inlet of the low temperature water pump (101).
3. Engine high-low temperature circulating cooling system according to claim 2, characterized in that the low temperature expansion water tank (106) is connected to the main intercooler (103) and/or the inter-stage intercooler (104) through a low temperature bleed pipe.
4. The engine high-low temperature circulating cooling system according to claim 2, characterized in that the low-temperature expansion water tank (106) is communicated with the low-temperature water pump (101) through a low-temperature water replenishing pipe.
5. The engine high-low temperature circulating cooling system according to claim 1, characterized in that the low temperature circulating cooling system further comprises a low temperature radiator (105), one end of the low temperature radiator (105) is communicated with the main intercooler (103) and the inter-stage intercooler (104), respectively, and the other end of the low temperature radiator (105) is communicated with an inlet of the low temperature water pump (101).
6. The engine high-low temperature cycle cooling system according to any one of claims 1 to 5, characterized in that the high-temperature cycle cooling system comprises a high-temperature water pump (201), an engine water jacket (202) and a thermostat (203) which are connected in series, wherein an inlet of the high-temperature water pump (201) is communicated with the thermostat (203) to form a first cooling cycle with the engine water jacket (202); a high-temperature radiator (204) is arranged between the thermostat (203) and an inlet of the high-temperature water pump (201), so that the high-temperature water pump (201), the engine water jacket (202), the thermostat (203) and the high-temperature radiator (204) form a second cooling cycle.
7. The engine high-low temperature circulating cooling system according to claim 6, characterized in that the high-temperature circulating cooling system further comprises an EGR cooler (205), an oil cooler (206) and a water outlet pipe (207), two ends of the water outlet pipe (207) are respectively communicated with the thermostat (203) and the engine water jacket (202), the EGR cooler (205) and the oil cooler (206) are arranged in parallel, and two ends of the EGR cooler (205) and two ends of the oil cooler (206) are respectively communicated with an outlet of the high-temperature water pump (201) and the water outlet pipe (207).
8. The engine high-low temperature circulating cooling system according to claim 7, characterized in that the high-temperature circulating cooling system further comprises a high-temperature expansion water tank (210), and two ends of the high-temperature expansion water tank (210) are respectively communicated with an inlet of the high-temperature water pump (201) and the water outlet pipe (207).
9. The high-low temperature circulating cooling system of the engine according to claim 7, characterized in that the high-temperature circulating cooling system further comprises a warm air blower (208) and a urea tank (209) which are arranged in parallel, and both ends of the warm air blower (208) and both ends of the urea tank (209) are respectively communicated with the water outlet pipe (207) and the inlet of the high-temperature water pump (201).
10. The engine high-low temperature circulating cooling system according to claim 7, characterized in that the high-temperature circulating cooling system further comprises a retarder (211) and an air compressor (212), one end of the retarder (211) is communicated with the engine water jacket (202), the other end of the retarder is communicated with the water outlet pipe (207), one end of the air compressor (212) is communicated with the engine water jacket (202), and the other end of the air compressor is communicated with the water outlet pipe (207) or an inlet of the high-temperature water pump (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882788.1U CN210239843U (en) | 2019-06-11 | 2019-06-11 | High-low temperature circulating cooling system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882788.1U CN210239843U (en) | 2019-06-11 | 2019-06-11 | High-low temperature circulating cooling system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239843U true CN210239843U (en) | 2020-04-03 |
Family
ID=69973694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920882788.1U Active CN210239843U (en) | 2019-06-11 | 2019-06-11 | High-low temperature circulating cooling system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239843U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282917A (en) * | 2020-09-25 | 2021-01-29 | 潍柴动力股份有限公司 | Engine thermal management system and vehicle |
| CN112576359A (en) * | 2020-11-18 | 2021-03-30 | 潍柴动力股份有限公司 | Low-temperature cooling system, vehicle and control method of low-temperature cooling system |
| CN113006923A (en) * | 2021-04-14 | 2021-06-22 | 一汽解放汽车有限公司 | Engine cooling system and vehicle |
-
2019
- 2019-06-11 CN CN201920882788.1U patent/CN210239843U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282917A (en) * | 2020-09-25 | 2021-01-29 | 潍柴动力股份有限公司 | Engine thermal management system and vehicle |
| CN112576359A (en) * | 2020-11-18 | 2021-03-30 | 潍柴动力股份有限公司 | Low-temperature cooling system, vehicle and control method of low-temperature cooling system |
| CN113006923A (en) * | 2021-04-14 | 2021-06-22 | 一汽解放汽车有限公司 | Engine cooling system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7254947B2 (en) | Vehicle cooling system | |
| US7040303B2 (en) | Combined aftercooler system with shared fans | |
| US9677509B2 (en) | Exhaust power turbine driven EGR pump for diesel engines | |
| US9745887B2 (en) | Engine cooling system | |
| CN210239843U (en) | High-low temperature circulating cooling system of engine | |
| US10054085B2 (en) | Power system having fuel-based cooling | |
| JP2006509146A (en) | Cooling system | |
| WO2020238193A1 (en) | Two-cycle vehicle cooling system having novel combination configuration | |
| CN112682157B (en) | High-power span diesel engine cooling system of amphibious vehicle | |
| CN108104941B (en) | A high-altitude two-stage turbocharger cooling system and its control method | |
| CN210509353U (en) | Novel cooling system for internal combustion engine | |
| US20070245716A1 (en) | Arrangement for Recirculation of Exhaust Gases of an Internal Combustion Engine in a Vehicle | |
| CN201116491Y (en) | Highly effective engine intercooler | |
| CN203626949U (en) | Air inlet pipeline cooling system of engine | |
| CN101368529A (en) | Low pressure EGR system | |
| US11208944B2 (en) | Cooling system for internal combustion engine | |
| CN206816354U (en) | A kind of turbocharged engine system | |
| CN214464603U (en) | Engine system and vehicle | |
| CN113212109B (en) | LNG bus supercharged engine cold energy recovery method and device | |
| CN210660363U (en) | Engine exhaust gas recirculation cooling system and engine | |
| CN207004624U (en) | A kind of cold middle cold type charge air-cooling system of engine water | |
| CN204386723U (en) | Two-stage intercooling system of commercial vehicle | |
| CN205876479U (en) | Cooling system for engine | |
| CN222066887U (en) | Intercooler system and supercharged engine | |
| CN207437196U (en) | A kind of engine low temperature cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |