CN115405408A - Expansion water tank assembly, engine cooling system and automobile - Google Patents
Expansion water tank assembly, engine cooling system and automobile Download PDFInfo
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- CN115405408A CN115405408A CN202211060786.7A CN202211060786A CN115405408A CN 115405408 A CN115405408 A CN 115405408A CN 202211060786 A CN202211060786 A CN 202211060786A CN 115405408 A CN115405408 A CN 115405408A
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- Prior art keywords
- water tank
- expansion
- pressure
- gas
- expansion water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0276—Draining or purging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/029—Expansion reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/02—Intercooler
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- 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
Abstract
The invention discloses an expansion water tank assembly, an engine cooling system and an automobile, wherein the expansion water tank assembly comprises: the air conditioner comprises an expansion water tank and a connecting pipeline, wherein one end of the connecting pipeline is connected with the expansion water tank, and the other end of the connecting pipeline is used for being connected with an air outlet end of an intercooler, so that low-temperature high-pressure air of the intercooler can be input into the expansion water tank. According to the invention, through arranging the connecting pipeline, one end of the connecting pipeline is connected with the expansion water tank, the other end of the connecting pipeline is used for being connected with the air outlet end of the intercooler, and low-temperature high-pressure gas of the intercooler is input into the expansion water tank to obtain the low-temperature high-pressure gas, so that the expansion is vertically led into the expansion water tank, the expansion water tank can quickly build pressure when the water temperature is low, the cold start is performed or the air pressure is low, and an additional air storage tank or pressurizing equipment is not needed.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an engine cooling system, and particularly relates to an expansion water tank assembly.
Background
The automobile has great influence on the traveling of people as an important travel tool, and when the automobile is in the traveling process, the engine can generate huge heat, so that the temperature of the engine is higher, a matched engine cooling system is needed to cool the engine, and the engine is prevented from being damaged.
In a cooling system of an engine, gas in the system needs to be discharged through an expansion water tank, cooling liquid needs to be supplemented in time, the pressure of a water pump is increased by increasing the pressure of the cooling system, and cavitation of the water pump is prevented. The proper pressure is kept in the expansion water tank, the water flow of the water pump can be improved, cavitation failure of the cooling system can be prevented, and the pressure in the expansion water tank is established by high-temperature expansion of the cooling liquid or water vapor generated by high temperature of the cooling liquid.
However, when the cold start engine or the vehicle runs in winter, the coolant temperature is low, and it is difficult for the expansion tank to build up sufficient pressure. When the expansion space of the expansion tank is large, it takes a long time to build up pressure only by the high-temperature expansion of the cooling liquid or the steam generated by the high temperature of the cooling liquid. When the expansion tank is used in a plateau area, the boiling point of the cooling liquid is reduced due to low atmospheric pressure, and when the pressure building capacity of the expansion tank is insufficient, the anti-freezing liquid of the engine is boiled at normal working water temperature, so that the vehicle cannot work or the cooling system is cavitated.
In the prior art, the method for quickly building pressure for the expansion water tank is mainly to build pressure for the expansion water tank quickly under the condition of cold start or low temperature or low pressure by adding an air storage tank or adding a pressurizing device, however, the method has the problems of complex structure, inconvenience caused by additionally adding an air storage tank and the like, and is not beneficial to industrial application.
Disclosure of Invention
The invention mainly aims to provide an expansion water tank assembly, which is simple in structure and convenient to operate, so that a cooling system of an engine can quickly build pressure and avoid cavitation when used in an environment with low temperature, large expansion space and low air pressure.
To achieve the above object, the present invention provides an expansion tank assembly, comprising:
an expansion tank;
and one end of the connecting pipeline is connected with the expansion water tank, and the other end of the connecting pipeline is used for being connected with the air outlet end of the intercooler, so that the low-temperature high-pressure gas of the intercooler can be input into the expansion water tank.
Optionally, the expansion tank assembly further comprises:
the gas-liquid separator is arranged on the connecting pipeline; and/or the presence of a gas in the gas,
and the pressure regulating device is arranged on the connecting pipeline.
Optionally, the pressure regulating device comprises a pressure regulating valve.
Optionally, the pressure regulating valve is a one-way valve, and a conduction direction of the one-way valve points to the expansion tank.
Optionally, a gas inlet and a gas outlet are arranged at the top of the gas-liquid separator, a filter element is arranged inside the gas-liquid separator, an accommodating space is arranged at the bottom of the gas-liquid separator, the gas inlet is used for being communicated with a gas outlet end of the intercooler, the gas outlet is communicated with the expansion water tank, and the gas inlet and the gas outlet are respectively arranged on two sides of the filter element.
Optionally, the inner diameter of the connecting pipeline is d, and d is less than or equal to 6mm.
Optionally, the pipe wall of the connecting pipeline is made of an elastic material, the thickness of the pipe wall is a, and a is larger than or equal to 3mm.
Optionally, the inner pipe wall of the connecting line is coated with a fluoro-rubber.
The present invention also proposes an engine cooling system comprising:
the supercharger is used for supercharging the inlet air to form high-temperature and high-pressure gas;
the intercooler comprises an air inlet end and an air outlet end, wherein the air inlet end is communicated with the supercharger and is used for cooling high-temperature and high-pressure gas to form low-temperature and high-pressure gas;
the engine is communicated with the air outlet end of the intercooler and is used for using low-temperature high-pressure gas; and
the above-mentioned expansion tank subassembly, the expansion tank subassembly includes: the air conditioner comprises an expansion water tank and a connecting pipeline, wherein one end of the connecting pipeline is connected with the expansion water tank, and the other end of the connecting pipeline is used for being connected with an air outlet end of an intercooler, so that low-temperature high-pressure air of the intercooler can be input into the expansion water tank.
The invention also provides an automobile comprising the engine cooling system, wherein the engine cooling system comprises:
the supercharger is used for supercharging the inlet air to form high-temperature and high-pressure gas;
the intercooler comprises an air inlet end and an air outlet end, wherein the air inlet end is communicated with the supercharger and is used for cooling high-temperature and high-pressure gas to form low-temperature and high-pressure gas;
the engine is communicated with the air outlet end of the intercooler and is used for using low-temperature high-pressure gas; and
the above-mentioned expansion tank subassembly, the expansion tank subassembly includes: the air conditioner comprises an expansion water tank and a connecting pipeline, wherein one end of the connecting pipeline is connected with the expansion water tank, and the other end of the connecting pipeline is used for being connected with an air outlet end of an intercooler, so that low-temperature high-pressure air of the intercooler can be input into the expansion water tank.
According to the technical scheme provided by the invention, through arranging the connecting pipeline, one end of the connecting pipeline is connected with the expansion water tank, the other end of the connecting pipeline is used for being connected with the air outlet end of the intercooler, and low-temperature high-pressure gas of the intercooler is input into the expansion water tank to obtain the low-temperature high-pressure gas, so that the low-temperature high-pressure gas is introduced into the expansion water tank, the pressure of the expansion water tank can be quickly established when the water temperature is low, the cold start is performed or the air pressure is low, and an air storage tank or pressurizing equipment is not required to be additionally arranged. The low-temperature high-pressure gas in the intercooler is directly introduced into the expansion water tank through the connecting pipeline without adding new gas storage equipment and pressurization equipment, so that the structure is simple and the operation is convenient.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a prior art expansion tank assembly;
FIG. 2 is a schematic view of an expansion tank assembly in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of an engine cooling system according to an embodiment of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In a cooling system of an engine, gas in the system needs to be discharged through an expansion water tank, cooling liquid needs to be supplemented in time, the pressure of a water pump is increased by increasing the pressure of the cooling system, and cavitation of the water pump is prevented. The proper pressure is kept in the expansion water tank, the water flow of the water pump can be improved, cavitation failure of the cooling system can be prevented, and the pressure in the expansion water tank is established by means of high-temperature expansion of the cooling liquid or water vapor generated by the high temperature of the cooling liquid. However, when the cold start engine or the vehicle runs in winter, the coolant temperature is low, and it is difficult for the expansion tank to build up sufficient pressure. When the expansion space of the expansion tank is large, it takes a long time to build pressure only by the high-temperature expansion of the cooling liquid or the water vapor generated by the high temperature of the cooling liquid. When the expansion water tank is used in a plateau area, the boiling point of the cooling liquid is reduced due to low atmospheric pressure, and when the pressure building capacity of the expansion water tank is insufficient, the anti-freezing liquid of the engine is boiled at normal working water temperature, so that the vehicle cannot work or the cooling system is subjected to cavitation erosion. In the prior art, a method for quickly building pressure for an expansion water tank is mainly to realize quick building pressure for the expansion water tank under the conditions of cold start or low temperature or low pressure by adding an air storage tank or adding a pressurizing device, however, the method has the problems of complicated structure, inconvenience caused by additionally adding an air storage tank and the like, and is not beneficial to industrial application. In view of this, the present invention proposes an expansion tank assembly for allowing the expansion tank to build pressure quickly.
Referring to fig. 1, fig. 1 shows an expansion water tank assembly in the prior art, when an engine is in operation, intake air is compressed by a supercharger to form high-temperature and high-pressure gas, and the high-temperature and high-pressure gas is cooled by an intercooler to form low-temperature and high-pressure gas, and then enters a cylinder of the engine for use by the engine.
Referring to fig. 2 to 3, the present invention provides an expansion tank assembly 100, wherein the expansion tank assembly 100 includes: expansion tank 1 and connecting line 2, connecting line 2 one end with expansion tank 1 is connected, and the other end is used for being connected with the end of giving vent to anger of intercooler 101, with can with the low temperature high-pressure gas input of intercooler 101 is to expansion tank 1.
According to the technical scheme, one end of the connecting pipeline 2 is connected with the expansion water tank 1, the other end of the connecting pipeline is connected with the air outlet end of the intercooler 101, low-temperature high-pressure air of the intercooler 101 is input into the expansion water tank 1 to obtain the low-temperature high-pressure air, and therefore the low-temperature high-pressure air is introduced into the expansion water tank 1, pressure can be built in the expansion water tank 1 quickly, and an air storage tank or pressurizing equipment does not need to be additionally arranged. According to the invention, the low-temperature high-pressure gas in the intercooler 101 is directly introduced into the expansion water tank 1 through the connecting pipeline 2 without adding new gas storage equipment and pressurization equipment, so that the structure is simple and the operation is convenient. The problem that when the vehicle is started in a cold state or runs in winter, the temperature of the cooling liquid is low, and the expansion water tank 1 is difficult to build enough pressure is solved. When the expansion space of the expansion water tank 1 is large, the pressure of the expansion water tank 1 can be quickly built. When the expansion tank is used in a plateau area, even if the atmospheric pressure is low, the expansion tank 1 can build enough pressure, and the reliability of a cooling system is improved.
It should be noted that, in the present invention, since a connecting pipe is provided to introduce the low-temperature high-pressure gas originally flowing to the engine 102 into the expansion tank 1, and a part of the intake flow is branched, which has a certain influence on the dynamic performance of the engine 102, the intake flow of the supercharger 103 needs to be increased appropriately, and the intake flow of the supercharger 103 can be increased by 0.4% to 0.6% on the original basis by adjusting the opening of the bypass valve of the supercharger 103, so as to ensure the normal power of the engine 102. And a connector of the connecting pipeline 2 connected to the expansion water tank 1 needs to be arranged at the highest position of the tank body of the expansion water tank 1 and is far away from the liquid level in the expansion water tank 1, so that the antifreezing solution is prevented from entering the connecting pipeline 2 and further entering the engine 102 to damage the engine 102.
Specifically, in the present embodiment, the expansion tank assembly 100 further includes at least one of a gas-liquid separator 21 and a pressure adjusting device 22, the gas-liquid separator 21 being disposed on the connecting line 2, and the pressure adjusting device 22 being disposed on the connecting line 2. By arranging the gas-liquid separator 21, it is possible to prevent the engine oil contained in the low-temperature high-pressure gas in the connecting line 2 from entering the expansion tank 1, and prevent the antifreeze in the expansion tank 1 from flowing back into the engine 102. By providing the pressure regulating device 22, the pressure of the expansion tank 1 can be made to be in a stable state.
Further, the pressure regulating device 22 includes a pressure regulating valve, and the pressure regulation of the pressure regulating valve can prevent the expansion tank 1 from being unable to degas at the degassing port due to excessive pressure. The pressure peak value of the pressure regulating valve must be set according to the pressure resistance of the expansion tank 1 and the pressure value of the relief port, and must not exceed the pressure resistance of the expansion tank 1 and the pressure value of the relief port.
Furthermore, the pressure regulating valve is a one-way valve, and the conducting direction of the pressure regulating valve points to the expansion water tank 1. The communication direction of the one-way valve points to the expansion water tank 1, so that the anti-freezing liquid in the expansion water tank 1 can be prevented from flowing back to the connecting pipeline 2, and further the anti-freezing liquid enters the cylinder to damage the engine 102.
In order to better prevent engine oil in the engine 102 from entering the expansion water tank 1 and prevent antifreeze in the expansion water tank 1 from entering the engine 102, the top of the gas-liquid separator 21 is provided with a gas inlet 211 and a gas outlet 212, a filter element is arranged in the gas-liquid separator, the bottom of the gas-liquid separator is provided with an accommodating space 213, the gas inlet 211 is used for being communicated with a gas outlet end of the intercooler 101, the gas outlet 212 is communicated with the expansion water tank 1, the gas inlet 211 and the gas outlet 212 are respectively arranged at two sides of the filter element, so that the filtered engine oil and antifreeze are deposited at the bottom of the gas-liquid separator 21, gas flows through the top of the gas-liquid separator, and the gas inlet 211 and the gas outlet 212 are respectively arranged at two sides of the filter element to ensure sufficient filtering effect.
In order to prevent excessive engine 102 intake air flow from being diverted to the expansion tank 1, the connecting pipeline 2 has an inner diameter d which is less than or equal to 6mm, so that the pressure requirement of the expansion tank 1 can be met, and the influence on the engine 102 can be reduced as much as possible. It should be noted that, in the present invention, the inner diameter of the connecting pipeline 2 needs to be smaller than the outer diameter of the joint, and the interference fit design is adopted, and the joint needs to be fixed by a hoop, so as to prevent the power shortage of the engine 102 caused by air leakage.
In order to meet the pressure resistance of the connecting pipeline 2, the pipe wall of the connecting pipeline 2 is made of elastic materials, the thickness of the pipe wall of the connecting pipeline 2 is a, and a is larger than or equal to 3mm. The material of the pipe wall of the connecting pipeline 2 can be silica gel, rubber or PU, and the invention is not limited in particular as long as the pressure resistance strength can be satisfied. The compression strength of the connecting pipeline 2 can be further improved by the thickness a of the pipe wall of the connecting pipeline 2 being more than or equal to 3mm, and the connecting pipeline 2 is prevented from being broken. It should be noted that, in order to further improve the compressive strength of the connecting pipeline 2, multiple layers of high-strength fiber braided layers may also be disposed inside the elastic pipe wall of the connecting pipeline 2, where the thickness of each layer of braided layer is 0.2 to 0.4mm, and the braided layers are uniformly distributed inside the elastic pipe wall of the connecting pipeline 2, and the larger the number of the high-strength fiber braided layers is, the larger the compressive strength of the connecting pipeline 2 is, but at the same time, the higher the pipe wall thickness and the cost required by the connecting pipeline 2 are, so that the high-strength fiber braided layers in the present invention are 4 layers.
Further, in order to prevent the oil from corroding the connecting pipeline 2, the inner pipe wall of the connecting pipeline 2 is coated with the fluororubber, so that the service life of the connecting pipeline 2 can be effectively prolonged.
The present invention also proposes an engine 102 cooling system comprising: booster 103, intercooler 101, engine 102 and expansion water tank set spare 100, booster 103 is used for forming high temperature high-pressure gas with the pressure boost of admitting air, intercooler 101 includes the inlet end and gives vent to anger the end, the inlet end intercommunication booster 103 for thereby cool off high temperature high-pressure gas and form low temperature high-pressure gas, engine 102 intercommunication the end of giving vent to anger of intercooler 101 is used for using low temperature high-pressure gas, expansion water tank set spare 100 includes expansion water tank 1 and connecting line 2, 2 one end of connecting line with expansion water tank 1 is connected, and the other end is used for being connected with the end of giving vent to anger of intercooler 101, with can with the low temperature high-pressure gas of intercooler 101 input extremely expansion water tank 1. The cooling system of the engine 102 has all the technical solutions of all the embodiments of the expansion water tank assembly 100 proposed by the present invention, and therefore at least has all the advantages brought by the technical solutions of the above embodiments, and detailed descriptions thereof are omitted.
The invention further provides an automobile which comprises all the technical schemes of all the embodiments of the expansion water tank 1, so that at least all the beneficial effects brought by the technical schemes of the embodiments are achieved, and detailed description is omitted.
According to the technical scheme provided by the invention, one end of the connecting pipeline 2 is connected with the expansion water tank 1, the other end of the connecting pipeline is used for being connected with the air outlet end of the intercooler 101, and low-temperature high-pressure gas of the intercooler 101 is input into the expansion water tank 1 to obtain low-temperature high-pressure gas, so that the expansion is vertically led into the expansion water tank 1, the pressure of the expansion water tank 1 can be quickly established when the water temperature is low, the cold start is performed or the air pressure is low, and an air storage tank or pressurizing equipment is not required to be additionally arranged.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An expansion tank assembly, comprising:
an expansion tank; and
and one end of the connecting pipeline is connected with the expansion water tank, and the other end of the connecting pipeline is used for being connected with the air outlet end of the intercooler, so that the low-temperature high-pressure gas of the intercooler can be input into the expansion water tank.
2. The expansion tank assembly of claim 1, further comprising:
the gas-liquid separator is arranged on the connecting pipeline; and/or the presence of a gas in the gas,
and the pressure regulating device is arranged on the connecting pipeline.
3. The expansion tank assembly as recited in claim 2, wherein said pressure regulating device comprises a pressure regulating valve.
4. The expansion tank assembly as claimed in claim 3, wherein said pressure regulating valve is a check valve, and a communication direction thereof is directed to said expansion tank.
5. The expansion water tank assembly as claimed in claim 2, wherein the gas-liquid separator has a top with an air inlet and an air outlet, a filter element disposed therein, and a bottom with a receiving space, the air inlet is connected to an air outlet of an intercooler, the air outlet is connected to the expansion water tank, and the air inlet and the air outlet are respectively disposed at two sides of the filter element.
6. The expansion tank assembly of claim 1, wherein said connecting line has an inner diameter d ≦ 6mm.
7. The expansion tank assembly as claimed in claim 1, wherein the wall of the connection pipe is made of an elastic material, and the thickness of the wall is a, a ≥ 3mm.
8. The expansion tank assembly of claim 1, wherein an inner pipe wall of the connecting line is coated with a fluoro-rubber.
9. An engine cooling system, comprising:
the supercharger is used for supercharging the inlet air to form high-temperature and high-pressure gas;
the intercooler comprises an air inlet end and an air outlet end, wherein the air inlet end is communicated with the supercharger and is used for cooling high-temperature and high-pressure gas to form low-temperature and high-pressure gas;
the engine is communicated with the air outlet end of the intercooler and is used for using low-temperature high-pressure gas; and
an expansion tank assembly as claimed in any one of claims 1 to 8, for rapid build up of pressure.
10. A motor vehicle having an engine cooling system according to claim 9.
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