A three-phase separation system and vehicle

Abstract

The application provides a three-phase separation system and a vehicle, and belongs to the technical field of vehicles, and comprises a three-phase separation assembly, an oil collecting shell and a pressurizing assembly, the three-phase separation assembly is provided with an oil-gas inlet communicated with a crankcase, an air outlet communicated with an engine air intake system and an oil outlet, the oil outlet is further connected with an oil outlet pipeline communicated with an oil pan, the oil collecting shell is arranged on the oil outlet pipeline and has a collecting cavity communicated with the oil outlet pipeline, the collecting cavity is used for gathering engine oil output by the oil outlet pipeline, and the pressurizing assembly is slidingly arranged in the inner cavity of the oil collecting shell and used for changing the volume of the collecting cavity to pressurize the collecting cavity. The application can separate water and gas in the crankcase from engine oil, meets the separation requirement, and can fully mix the separated engine oil and trace water, so that the engine oil layering phenomenon is avoided.

Description

Technical Field

[0001] This invention belongs to the field of vehicle technology, and more specifically, relates to a three-phase separation system and a vehicle. Background Technology

[0002] Hydrogen internal combustion engines have significant advantages such as zero carbon emissions, high efficiency, and low cost, making them one of the important directions for hydrogen energy applications.

[0003] The combustion product of a hydrogen internal combustion engine is water. During piston operation, water and a small amount of hydrogen can seep into the crankcase through the gaps between the piston rings and cylinder walls. Water droplets mixed with engine oil can cause emulsification and separation. Furthermore, there is a risk of explosion when the hydrogen concentration exceeds 4%. To prevent the hydrogen concentration in the crankcase from exceeding 4%, fresh air needs to be introduced into the crankcase to dilute the hydrogen and prevent an explosion.

[0004] Because fresh air is introduced into the crankcase, and water droplets may also be present, oil-gas-water separation is necessary. Traditional oil-gas separators, integrated within the engine cylinder head cover, can only separate oil and gas, not the three-phase separation required for oil, gas, and water. Furthermore, if water separation is incomplete, high water content in the engine oil can lead to oil stratification, with oil on top and water at the bottom. This can cause the oil pump to draw in water, affecting engine lubrication. Summary of the Invention

[0005] The purpose of this invention is to provide a three-phase separation system and vehicle, which aims to solve the technical problems of existing oil-gas separators integrated in the engine cylinder head cover failing to meet the requirements of three-phase separation of oil, gas and water, and oil stratification caused by incomplete water separation.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a three-phase separation system, comprising:

[0007] The three-phase separation assembly is provided with an oil-gas inlet connected to the crankcase, an air outlet connected to the engine intake system, and an oil outlet; the oil outlet is also connected to an oil outlet pipe connected to the oil pan.

[0008] An oil collecting housing is disposed on the oil outlet pipe and has a collecting chamber communicating with the oil outlet pipe; the collecting chamber is used to collect the engine oil output from the oil outlet pipe; and

[0009] A pressurizing component is slidably disposed in the inner cavity of the oil collecting housing to change the volume of the collecting cavity in order to pressurize the collecting cavity.

[0010] In one possible implementation, the pressurization component includes:

[0011] An extrusion member is slidably disposed within the inner cavity of the oil collecting housing; the extrusion member divides the inner cavity of the oil collecting housing into a non-communicating collection cavity and an injection cavity; and

[0012] The injection line is connected to the injection chamber and is used to introduce a medium into the injection chamber to push the extruder to slide and reduce the volume of the collection chamber; a first solenoid valve is provided on the injection line.

[0013] In some embodiments, the injection line is connected to the engine's main oil passage.

[0014] In some embodiments, the pressurization assembly further includes a return oil line that connects the injection chamber and the oil pan; a second solenoid valve is provided on the return oil line.

[0015] In some embodiments, the extruder includes:

[0016] A sliding block is slidably disposed within the inner cavity of the oil collecting housing; the sliding block divides the inner cavity of the oil collecting housing into the collecting cavity and the injection cavity; and

[0017] An elastomer is disposed within the collection cavity and connected to the sliding block; the elastomer is used to push the extruder to slide and expand the volume of the collection cavity.

[0018] In one possible implementation, a third solenoid valve and a fourth solenoid valve are provided on the oil outlet pipeline; in the oil flow path in the oil outlet pipeline, the third solenoid valve is located in front of the oil collection housing, and the fourth solenoid valve is located behind the oil collection housing.

[0019] In one possible implementation, the three-phase separation component includes:

[0020] The separation shell is provided with the oil and gas inlet, the gas outlet and the oil outlet; wherein the gas outlet is located above the oil and gas inlet and the oil outlet is located below the oil and gas inlet;

[0021] The rotary separation module is rotatably disposed inside the separation housing; and

[0022] The heating module is fixedly mounted on the outer wall of the separation shell.

[0023] In some embodiments, the three-phase separation assembly further includes a plurality of water-collecting rings spaced apart along the vertical direction on the inner wall of the separation housing; each water-collecting ring is provided with an oil passage hole;

[0024] The heating module includes multiple sets of electrically heated rings spaced apart in the vertical direction; wherein, in the radial direction of the separation shell, each water-collecting ring corresponds to a set of electrically heated rings.

[0025] In some embodiments, the rotating separation module includes:

[0026] Power source;

[0027] A rotating shaft is connected to the power output end of the power source and is located inside the separate housing; and

[0028] Multiple sets of blades are spaced apart on the rotating shaft in the vertical direction; the blades are conical ring-shaped structures, and the small diameter end of the blades is connected to the rotating shaft, while the large diameter end of the blades extends toward the side wall of the separation shell, and the large diameter end of each set of blades is located above one of the water-collecting rings; each set of blades is also provided with an air passage hole.

[0029] The beneficial effects of the three-phase separation system provided by this invention are as follows: Compared with the prior art, the three-phase separation system of this invention uses a three-phase separation component to separate the oil, gas and water phases in the crankcase, and allows the separated gas to enter the engine intake system from the outlet and re-participate in combustion; since the three-phase separation component is located outside the engine, it does not occupy the internal space of the engine, and can correspondingly increase the space for oil, gas and water three-phase separation, thereby improving the separation effect; the separated oil flows into the collection chamber of the oil collection shell. If the separated oil has a high water content, the pressurization component can also pressurize the collection chamber by changing the volume of the collection chamber, so that the oil and water are fully mixed, and then flow into the oil pan through the oil outlet pipe, avoiding the phenomenon of oil stratification.

[0030] The present invention also provides a vehicle including the above-described three-phase separation system.

[0031] The vehicle provided by this invention, by employing the aforementioned three-phase separation system, can separate moisture, gas and engine oil in the crankcase to meet separation requirements; and can also fully mix the separated engine oil with trace amounts of moisture to avoid oil stratification. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram showing the position and structure of the three-phase separation system and the engine provided in an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of a three-phase separation system provided in an embodiment of the present invention.

[0035] In the picture:

[0036] 1. Three-phase separation assembly; 11. Separation housing; 111. Oil / gas inlet; 112. Gas outlet; 113. Oil outlet; 12. Rotary separation module; 121. Shaft; 122. Blade; 123. Power source; 13. Heating module; 14. Water collection ring; 15. Oil outlet pipeline; 16. Third solenoid valve; 17. Fourth solenoid valve;

[0037] 2. Oil collecting shell; 21. Collection chamber; 22. Injection chamber;

[0038] 3. Pressurization assembly; 31. Extrusion component; 311. Sliding block; 312. Elastomer; 32. Injection pipeline; 33. First solenoid valve; 34. Return oil pipeline; 35. Second solenoid valve;

[0039] 4. Engine;

[0040] 5. Oil pan. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that the directions or positional relationships indicated by "front", "rear", "inner", "outer", "up", and "down" in this embodiment are based on the vehicle's own orientation. The front of the vehicle represents "front", the rear of the vehicle represents "rear", the top of the vehicle represents "up", the bottom of the vehicle represents "down", the "inner" side refers to the side facing the driver's cab, and the "outer" side refers to the side facing the driver's cab.

[0043] In addition, the front-rear direction of the vehicle body defined in the embodiments of the present invention refers to the front-rear direction of the vehicle's forward direction during driving; the left-right direction of the vehicle body defined refers to the left-right direction of the vehicle's forward direction during driving; and the up-down direction of the vehicle body defined refers to the up-down direction of the vehicle's forward direction during driving.

[0044] Please refer to the following: Figure 1 and Figure 2The three-phase separation system provided by the present invention will now be described. The three-phase separation system includes a three-phase separation component 1, an oil collection housing 2, and a pressurization component 3. The three-phase separation component 1 is provided with an oil-gas inlet 111 communicating with the crankcase, an air outlet 112 communicating with the engine intake system, and an oil outlet 113; the air outlet 112 is located above the oil-gas inlet 111, and the oil outlet 113 is located below the oil-gas inlet 111; an oil outlet pipe 15 communicating with the oil pan 5 is also connected to the oil outlet 113; the oil collection housing 2 is disposed on the oil outlet pipe 15 and has a collection chamber 21 communicating with the oil outlet pipe 15; the collection chamber 21 is used to collect the engine oil output from the oil outlet pipe 15; the pressurization component 3 is slidably disposed within the inner cavity of the oil collection housing 2 to change the volume of the collection chamber 21, thereby pressurizing the collection chamber 21.

[0045] The three-phase separation system provided by this invention is independently installed outside the engine 4, without relying on the engine 4's own structure, thus increasing the separation space for the oil, gas, and water phases. Specifically, the three-phase separation component 1 is used to separate the oil, gas, and water phases, allowing water and gas to separate from the engine oil; it should be noted that the three-phase separation component 1 is internally equipped with an oil-gas separation module and an oil-water separation module.

[0046] The oil-gas separation module can be a high-speed rotating module, which uses the centrifugal force generated by high-speed rotation to throw the oil and water in the three phases onto the inner wall of the three-phase separation component 1, and the gas moves upward to separate the oil and gas; the oil-gas separation module can also be a spiral flow guiding module, which introduces the oil-gas-water three-phase mixture in the crankcase into the spiral flow guiding module at high speed, and uses centrifugal separation to throw the oil-water mixture onto the inner wall of the spiral flow guiding module, and the gas moves upward to separate the oil and gas.

[0047] The oil-water separation module can be a heating component, which raises the temperature of the three-phase separation component 1 to evaporate water into water vapor, thereby separating oil and water. Alternatively, the oil-water separation module can be a metal foam microporous packing material, which has oleophilic and hydrophobic properties, effectively isolating oil and water. It can also be a condensation filter module, where small water droplets in the oil condense into larger droplets. Under gravity, the oil rises to the top and the water falls to the bottom, and the oil is then drained through the oil guiding structure, thus separating the oil and water.

[0048] It should be noted that this embodiment does not limit the specific structure of the oil-gas separation module and the oil-water separation module of the three-phase separation component 1, as long as the three-phase separation component 1 can separate the oil, gas and water phases.

[0049] The oil collection housing 2 is installed on the oil outlet pipe 15. It can be understood that the oil outlet pipe 15 is divided into two sections: one section connects the oil outlet 113 to the collection chamber 21 of the oil collection housing 2, and the other section connects the collection chamber 21 to the oil pan 5. The separated engine oil flows into the oil pan 5 through the collection chamber 21 and the oil outlet pipe 15.

[0050] The pressurizing component 3 is used to change the volume of the collection chamber 21 to pressurize the engine oil, ensuring thorough mixing before it is quickly introduced into the oil pan 5. Specifically, the pressurizing component 3 can be electrically connected to the vehicle's control system. When the vehicle starts, the control system can control the pressurizing component 3 to open periodically, pushing the engine oil in the collection chamber 21 quickly into the oil pan 5. The control system can also control the opening and closing of the pressurizing component 3 based on the water content of the engine oil in the collection chamber 21. When the control system receives a signal that the water content of the engine oil in the collection chamber 21 is greater than a preset value, the control system controls the pressurizing component 3 to open, reducing the volume of the collection chamber 21 and pressurizing it to ensure thorough mixing of the oil and water before it is introduced into the oil pan 5, preventing oil-water separation that could affect the lubrication of the engine 4. The water content of the engine oil can be monitored in real time by a sensor. The preset value for the water content of the engine oil can be 1%.

[0051] It should be noted that when pressurizing the collection chamber 21, in order to prevent the oil in the collection chamber 21 from mixing with other substances again, no other medium can be introduced into the collection chamber 21. The pressurizing component 3 can only pressurize the collection chamber 21 by reducing its volume. Specifically, the pressurizing component 3 can be a piston structure, which uses piston movement to reduce the volume of the collection chamber 21. The piston structure can be moved electrically, or it can be moved by a pneumatic or hydraulic circuit.

[0052] Compared with the prior art, the three-phase separation system provided by the present invention uses a three-phase separation component 1 to separate the oil, gas and water phases in the crankcase, and allows the separated gas to enter the engine intake system from the outlet 112 to re-participate in combustion. Since the three-phase separation component 1 is located outside the engine 4, it does not occupy the internal space of the engine 4, and can correspondingly increase the space for oil, gas and water three-phase separation, thereby improving the separation effect. The separated oil flows into the collection chamber 21 of the oil collection housing 2. If the separated oil has a high water content, the pressurization component 3 can also pressurize the collection chamber 21 by changing its volume, so that the oil and water are fully mixed, and then flow into the oil pan 5 through the oil outlet pipe 15, thus avoiding the phenomenon of oil stratification.

[0053] In some embodiments, the pressurizing component 3 described above may employ, as follows: Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2The pressurizing assembly 3 includes an extrusion member 31 and an injection line 32. The extrusion member 31 is slidably disposed in the inner cavity of the oil collecting housing 2; the extrusion member 31 divides the inner cavity of the oil collecting housing 2 into a collection chamber 21 and an injection chamber 22 that are not connected to each other; the injection line 32 is connected to the injection chamber 22 and is used to introduce a medium into the injection chamber 22 to push the extrusion member 31 to slide and reduce the volume of the collection chamber 21; a first solenoid valve 33 is provided on the injection line 32.

[0054] The first solenoid valve 33 is electrically connected to the vehicle's control system and is controlled to open and close. When the first solenoid valve 33 is opened, the injection line 32 is connected, and a medium is introduced into the injection chamber 22. As the medium increases, it pushes the extruder 31 to move, thereby reducing the volume of the collection chamber 21 and correspondingly increasing the volume of the injection chamber 22.

[0055] It should be noted that the extrusion member 31 is sealed in the inner cavity of the oil collection housing 2. Although the extrusion member 31 can slide, it is in complete contact with the inner wall of the oil collection housing 2 to completely isolate the collection chamber 21 from the injection chamber 22 and prevent them from communicating with each other.

[0056] The extrusion component 31 is driven to move by the continuously increasing medium in the injection chamber 22, that is, it is pushed to move through the injection pipeline 32. Compared with the electric drive method, there is no need for electrical circuits, the layout is optimized, the cost is reduced, and the movement performance of the extrusion component 31 can be guaranteed to be stable.

[0057] Preferably, based on the above embodiment, the injection line 32 is connected to the main oil passage of the engine. That is, the medium introduced into the injection chamber 22 is the engine oil from the main oil passage of the engine. The internal oil flow characteristics of the engine 4 during operation drive the extruder 31 to move and pressurize the collection chamber 21. No additional power source is required, which reduces costs and optimizes the layout space. Moreover, the viscosity of the oil is high, so it will not easily enter the collection chamber 21 through the extruder 31. There is no need to worry about the oil in the collection chamber 21 being mixed by the extruder 31 due to the introduction of other media into the injection chamber 22.

[0058] In some embodiments, the pressurizing component 3 described above may also employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The pressurization assembly 3 also includes an oil return line 34, which connects the injection chamber 22 and the oil pan 5. The oil return line 34 is used to recover the oil in the injection chamber 22 and to flow the recovered oil into the oil pan 5.

[0059] A second solenoid valve 35 is provided on the oil return line 34. The second solenoid valve 35 can be electrically connected to the control system and is controlled to open and close by the control system. Specifically, when the first solenoid valve 33 is open, the second solenoid valve 35 is closed; when the oil in the collection chamber 21 is mixed and flows into the oil pan 5, or when the oil in the collection chamber 21 is fully mixed, the second solenoid valve 35 is opened.

[0060] In some embodiments, the extrusion member 31 may be adopted as follows: Figure 2 The structure shown is described in the following document. Figure 2 The extrusion member 31 includes a sliding block 311 and an elastic body 312. The sliding block 311 is slidably disposed in the inner cavity of the oil collecting housing 2; the sliding block 311 divides the inner cavity of the oil collecting housing 2 into a collection cavity 21 and an injection cavity 22; the elastic body 312 is disposed in the collection cavity 21 and connected to the sliding block 311; the elastic body 312 is used to push the extrusion member 31 to slide and expand the volume of the collection cavity 21.

[0061] The sliding block 311 functions to slide and change the volume of the collecting chamber 21. Specifically, when the medium in the injection chamber 22 pushes the sliding block 311 to move, the volume of the collecting chamber 21 decreases, the collecting chamber 21 is pressurized, and the sliding block 311 compresses the elastic body 312, causing the elastic body 312 to store energy. At this time, the second solenoid valve 35 is closed. When the oil in the collecting chamber 21 mixes and flows into the oil pan 5, the second solenoid valve 35 opens, the oil in the injection chamber 22 flows back to the oil pan 5, the sliding block 311 is no longer driven by the oil, the elastic body 312 releases its stored energy and rebounds, pushing the sliding block 311 back to its original position.

[0062] Specifically, the elastic body 312 can be a spring or a sheet. This embodiment does not limit the specific structure of the elastic body 312, as long as it has elastic degrees of freedom along the moving direction of the sliding block 311.

[0063] In some embodiments, the oil outlet line 15 may also be equipped with, for example, Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The oil outlet line 15 is equipped with a third solenoid valve 16 and a fourth solenoid valve 17. In the oil flow path in the oil outlet line 15, the third solenoid valve 16 is located in front of the oil collection housing 2, and the fourth solenoid valve 17 is located behind the oil collection housing 2.

[0064] The oil outlet pipeline 15 is divided into two sections. One section connects the oil outlet 113 to the collection chamber 21 of the oil collecting shell 2, which can be considered as the upper section of the oil outlet pipeline 15. The other section connects the collection chamber 21 to the oil pan 5, which can be considered as the lower section of the oil outlet pipeline 15. The third solenoid valve 16 is located in the upper section of the oil outlet pipeline 15, and the fourth solenoid valve 17 is located in the lower section of the oil outlet pipeline 15.

[0065] Both the third solenoid valve 16 and the fourth solenoid valve 17 can be electrically connected to the vehicle's control system and are controlled to open and close by the control system. Specifically, the third solenoid valve 16 is a normally open one-way valve, and the separated engine oil enters the collection chamber 21 through the upper section of the oil outlet pipe 15; when the amount of engine oil in the collection chamber 21 reaches the maximum preset value and the water content of the engine oil is less than the preset value, the fourth solenoid valve 17 opens, and the separated engine oil flows into the oil pan 5 through the lower section of the oil outlet pipe 15.

[0066] When the water content of the oil in the collection chamber 21 is greater than 1%, the second solenoid valve 35, the third solenoid valve 16, and the fourth solenoid valve 17 are all closed, and the first solenoid valve 33 is opened. Oil is introduced into the injection chamber 22, pushing the extruder 31 to move and reducing the volume of the collection chamber 21 to ensure thorough mixing of the oil. After the first solenoid valve 33 has been open for a preset time, the fourth solenoid valve 17 opens, and the oil in the collection chamber 21 flows into the oil pan 5 through the lower section of the oil outlet pipe 15. When the oil level in the collection chamber 21 is lower than the preset level, the third solenoid valve 16 and the second solenoid valve 35 open, and the upper section of the oil outlet pipe 15 continues to output the separated oil to the collection chamber 21, while the oil in the injection chamber 22 flows back to the oil pan 5 through the return oil pipe 34.

[0067] It should be noted that the amount of oil in the collection chamber 21 can be monitored in real time by a liquid level sensor.

[0068] In some embodiments, the three-phase separation component 1 described above can be as follows: Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The three-phase separation assembly 1 includes a separation housing 11, a rotary separation module 12, and a heating module 13. The separation housing 11 is provided with the aforementioned oil-gas inlet 111, gas outlet 112, and oil outlet 113, wherein the gas outlet 112 is located above the oil-gas inlet 111, and the oil outlet 113 is located below the oil-gas inlet 111. Preferably, the oil outlet 113 is located at the bottom end of the separation housing 11. The rotary separation module 12 is rotatably disposed inside the separation housing 11. The heating module 13 is fixedly disposed on the outer wall of the separation housing 11.

[0069] An oil-gas inlet pipe is connected to the oil-gas inlet 111, and an outlet pipe is connected to the outlet 112. The three-phase mixture of oil, gas, and water in the crankcase enters the separator housing 11 through the oil-gas inlet pipe and the oil-gas inlet 111. Under negative pressure, it moves upward. During the movement, it passes through the high-speed rotating separation module 12. The liquid molecules (oil-water mixture) in the three-phase mixture are thrown onto the side wall of the separator housing 11 under the action of centrifugal force, while the gas continues to rise and finally enters the engine intake system from the outlet 112 to participate in combustion again, thus achieving oil-gas separation.

[0070] Liquid molecules are thrown onto the side wall of the separator 11. Because the outer wall of the separator 11 is equipped with a heating element, the high temperature of the separator 11 can evaporate the water in the oil-water mixture into water vapor. The water vapor then rises and eventually enters the engine intake system through the outlet 112, thus achieving oil-water separation. The separated engine oil flows along the side wall of the separator 11 into the oil outlet 113, and then into the collection chamber 21.

[0071] In this embodiment, the three-phase separation component 1 uses a heating module 13 to separate the water in the oil, heating and evaporating the water into water vapor. This eliminates the need for an additional water outlet on the separation housing 11, as well as for an oil-water separation structure inside the separation housing 11. This maximizes the space occupied by the rotating separation module 12 within the separation housing 11, improves the oil-gas separation effect, simplifies the structure of the three-phase separation component 1, and reduces costs.

[0072] Please see Figure 1 and Figure 2 Based on the above embodiments, the three-phase separation component 1 further includes a plurality of water-collecting rings 14; the plurality of water-collecting rings 14 are spaced apart on the inner wall of the separation housing 11 in the vertical direction; each water-collecting ring 14 is provided with an oil passage hole; the heating module 13 includes a plurality of sets of electric heating rings spaced apart in the vertical direction; wherein, in the radial direction of the separation housing 11, each water-collecting ring 14 corresponds to a set of electric heating rings.

[0073] Specifically, the separation shell 11 is made of resin, and the water-collecting ring 14 is made of metal. The water-collecting ring 14 passes through the separation shell 11 and is connected to the corresponding electric heating ring. Under the action of centrifugal force, the oil-water mixture thrown onto the side wall of the separation shell 11 falls onto the water-collecting ring 14 under the action of gravity. The electric heating ring transfers heat to the water-collecting ring 14, keeping the temperature of the water-collecting ring 14 above the preset temperature, so that the water in the oil-water mixture is heated and evaporated.

[0074] Each water-collecting ring 14 is provided with an oil passage hole for the oil-water mixture to pass through. Specifically, the oil-water mixture on the upper water-collecting ring 14 drips through the oil passage hole onto the lower water-collecting ring 14, and continues to drip downwards through the oil passage hole on the lower water-collecting ring 14, eventually falling into the oil outlet pipe 15.

[0075] The process of the oil-water mixture gradually dripping downwards can increase the flow path of the oil-water mixture, prolong the heating time, and allow the water in the oil-water mixture to be fully heated and evaporated into water vapor, further reducing the water content in the engine oil.

[0076] It should be noted that the heating module 13 can also be electrically connected to the vehicle's control system. When the engine coolant temperature is lower than the preset temperature, the control system controls the heating module 13 to turn on. When the engine coolant temperature is higher than the preset temperature, the heating module 13 turns off and stops working. At this time, the internal temperature of the engine is sufficient to evaporate the water in the engine oil that flows into the engine.

[0077] In some embodiments, the rotary separation module 12 described above can be adopted as follows: Figure 2 The structure shown is described in the following document. Figure 2 The rotary separation module 12 includes a power source 123, a rotating shaft 121, and multiple sets of blades 122. The power source 123 is located outside the separation housing 11; the rotating shaft 121 is connected to the power output end of the power source 123 and is located inside the separation housing 11; multiple sets of blades 122 are spaced apart on the rotating shaft 121 in a vertical direction; the blades 122 have a conical annular structure, and the small-diameter end of the blades 122 is connected to the rotating shaft 121, while the large-diameter end of the blades 122 extends towards the side wall of the separation housing 11, and the large-diameter end of each set of blades 122 is located above one of the water-collecting rings 14; each set of blades 122 is also provided with air passage holes. Specifically, multiple air passage holes are spaced apart, and preferably located on the upper part of the blades 122.

[0078] Power source 123 outputs power to drive shaft 121 and multiple sets of blades 122 to rotate at high speed. Under high-speed rotation, blades 122 agitate the three-phase mixture of oil, gas and water. Liquid molecules (oil-water mixture) in the three-phase mixture are thrown onto the side wall of separation shell 11 or flow downward along blades 122 under the action of centrifugal force; gas flows upward, through the air passages of each set of blades 122, and finally enters the engine intake system from the air outlet 112 to re-participate in combustion, thereby achieving oil-gas separation.

[0079] Specifically, the blade 122 has a conical annular structure, i.e., an inverted funnel-shaped structure. Its upper end is a small-diameter end, which is connected to the rotating shaft 11, and its lower end is a large-diameter end, which also extends downwards in the vertical direction. The inverted funnel-shaped blade 122 can completely block the oil-water mixture, allowing only the gas to flow upwards through the vent hole, and can also avoid generating cold air, i.e., avoid lowering the internal temperature of the separation shell 11.

[0080] In addition, the lower end of each set of blades 122 extends downwards, which can guide the oil-water mixture flowing downwards along the blades 122 directly to the water collection ring 14, thereby improving the efficiency of water heating and evaporation.

[0081] Based on the same inventive concept, this application also provides a vehicle including the above-described three-phase separation system.

[0082] The vehicle provided by this invention, by employing the aforementioned three-phase separation system, can separate moisture, gas and engine oil in the crankcase, meeting the separation requirements; and can also fully mix the separated engine oil with trace amounts of moisture, avoiding oil stratification.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-phase separation system, characterized in that, include: The three-phase separation assembly (1) is provided with an oil-gas inlet (111) connected to the crankcase, an air outlet (112) connected to the engine intake system, and an oil outlet (113); the oil outlet (113) is also connected to an oil outlet pipe (15) connected to the oil pan (5). An oil collection housing (2) is provided on the oil outlet pipe (15) and has a collection chamber (21) communicating with the oil outlet pipe (15); the collection chamber (21) is used to collect the engine oil output by the oil outlet pipe (15); as well as The pressurizing component (3) is slidably disposed in the inner cavity of the oil collecting housing (2) to change the volume of the collecting chamber (21) in order to pressurize the collecting chamber (21); The pressurization component (3) includes: An extrusion member (31) is slidably disposed within the inner cavity of the oil collecting housing (2); the extrusion member (31) divides the inner cavity of the oil collecting housing (2) into a non-communicating collection chamber (21) and an injection chamber (22); and The injection line (32) is connected to the injection chamber (22) and is used to introduce a medium into the injection chamber (22) to push the extruder (31) to slide and reduce the volume of the collection chamber (21); the injection line (32) is provided with a first solenoid valve (33). The three-phase separation component (1) includes: The separation housing (11) is provided with the oil and gas inlet (111), the gas outlet (112) and the oil outlet (113); wherein the gas outlet (112) is located above the oil and gas inlet (111) and the oil outlet (113) is located below the oil and gas inlet (111); A rotary separation module (12) is rotatably disposed inside the separation housing (11), the rotary separation module (12) being used to achieve oil-gas separation; and A heating module (13) is fixedly installed on the outer wall of the separation housing (11), and the heating module (13) is used to separate water from the engine oil.

2. The three-phase separation system as described in claim 1, characterized in that, The injection line (32) is connected to the engine's main oil passage.

3. The three-phase separation system as described in claim 2, characterized in that, The pressurization assembly (3) also includes a return oil line (34), which connects the injection chamber (22) and the oil pan (5); a second solenoid valve (35) is provided on the return oil line (34).

4. The three-phase separation system as described in claim 1, characterized in that, The extrusion member (31) includes: A sliding block (311) is slidably disposed within the inner cavity of the oil collecting housing (2); the sliding block (311) divides the inner cavity of the oil collecting housing (2) into the collecting chamber (21) and the injection chamber (22); and An elastomer (312) is disposed in the collection cavity (21) and connected to the sliding block (311); the elastomer (312) is used to push the extruder (31) to slide and expand the volume of the collection cavity (21).

5. The three-phase separation system as described in claim 1, characterized in that, The oil outlet pipe (15) is equipped with a third solenoid valve (16) and a fourth solenoid valve (17); in the oil flow path in the oil outlet pipe (15), the third solenoid valve (16) is located in front of the oil collection housing (2), and the fourth solenoid valve (17) is located behind the oil collection housing (2).

6. The three-phase separation system as described in claim 1, characterized in that, The three-phase separation assembly (1) also includes a plurality of water-collecting rings (14) spaced apart along the vertical direction on the inner wall of the separation housing (11); each water-collecting ring (14) is provided with an oil passage hole; The heating module (13) includes multiple sets of electrically heated rings spaced apart in the vertical direction; wherein, in the radial direction of the separation shell (11), each water-collecting ring (14) corresponds to a set of electrically heated rings.

7. The three-phase separation system as described in claim 6, characterized in that, The rotary separation module (12) includes: Power source (123); A rotating shaft (121) is connected to the power output end of the power source (123) and is located inside the separate housing (11); and Multiple sets of blades (122) are spaced apart on the rotating shaft (121) in the vertical direction; the blades (122) are conical ring-shaped structures, and the small diameter end of the blades (122) is connected to the rotating shaft (121), and the large diameter end of the blades (122) extends toward the side wall of the separation shell (11); the large diameter end of each set of blades (122) is located above one of the water-collecting rings (14); each set of blades (122) is also provided with air passage holes.

8. A vehicle, characterized in that, Includes the three-phase separation system according to any one of claims 1-7.

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