Water-vapor separation pressurization air inlet system and vehicle

Abstract

The invention relates to the technical field of engine air inlet systems, in particular to a water-vapor separation supercharging air inlet system and a vehicle. The structure of the water-vapor separation supercharging air inlet system comprises an intercooler; the humidity sensor is arranged on an air inlet pipeline, and the air inlet pipeline communicates with the intercooler; the exhaust gas recirculation system is communicated with the intercooler through an exhaust gas inlet pipeline; the centrifugal pump communicates with the intercooler, and the centrifugal pump communicates with an engine of the vehicle; the electronic control unit is connected with the humidity sensor and the exhaust gas recirculation system through wire harnesses, is used for collecting humidity information of the humidity sensor and opening information of the exhaust gas recirculation system, and is connected to the centrifugal pump through a wire harness; the electronic control unit can control the working state of the centrifugal pump according to the humidity information and the opening degree information. According to the water-vapor separation supercharging air inlet system and the vehicle, the problem that when air enters an existing engine, the content of water vapor in mixed gas is high can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of engine air intake systems, and in particular to a water vapor separation supercharged air intake system and a vehicle. Background Art

[0002] With the continuous advancement of vehicle technology, users' requirements for engine performance are also increasing.

[0003] At present, the intake air of the engine mainly comes from the exhaust gas discharged by the exhaust gas recirculation system (EGR) and the outside air. After the mixed gas is cooled by the intercooler, it is introduced into the intake manifold to participate in the combustion process. However, after the exhaust gas recirculation system is turned on, the burned exhaust gas will contain a large amount of water vapor. In addition, in an environment with high humidity or on rainy days, the air will also contain a large amount of water vapor. Especially in engines with water-cooled intercoolers, the water vapor from the above two pathways will condense into water droplets during the intake process after passing through the intercooler, and enter the combustion chamber driven by the airflow, which can easily cause engine ignition difficulties, and in severe cases, it can also cause single-cylinder misfires or cylinder failures. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a water vapor separation supercharged intake system and a vehicle, so as to solve the problem of high water vapor content in the mixed gas during intake of the existing engine.

[0005] According to a first aspect of the present invention, a water vapor separation supercharged intake system is provided, wherein the water vapor separation supercharged intake system includes: an intercooler; a humidity sensor, which is arranged in an air intake pipeline, and the air intake pipeline is connected to the intercooler; an exhaust gas recirculation system, which is connected to the intercooler through an exhaust gas intake pipeline; a centrifugal pump, which is connected to the intercooler, and the centrifugal pump is connected to the engine of the vehicle; and an electronic control unit, which is connected to the humidity sensor and the exhaust gas recirculation system through a wiring harness, and is used to collect humidity information of the humidity sensor and opening information of the exhaust gas recirculation system, and the electronic control unit is connected to the centrifugal pump through a wiring harness, and the electronic control unit can control the working state of the centrifugal pump according to the humidity information and the opening information.

[0006] Preferably, the water vapor separation supercharged intake system includes a supercharger, the air intake pipeline is connected to the supercharger, the exhaust gas intake pipeline is connected to the supercharger, and the supercharger is connected to the intercooler through a mixed gas intake pipeline.

[0007] Preferably, the water vapor separation supercharged intake system includes an intake manifold, the centrifugal pump is connected to the intake manifold, and the intake manifold is connected to the engine.

[0008] Preferably, the engine is connected to the supercharger via an exhaust gas outlet pipe.

[0009] Preferably, the water vapor separation supercharged intake system further includes a catalyst, the supercharger is connected to the catalyst, the catalyst is connected to the exhaust pipe, and the exhaust gas recirculation system is connected to the catalyst.

[0010] Preferably, the water vapor separation supercharged air intake system further includes an air filter, the air intake pipeline is connected to the air filter, and the humidity sensor is arranged between the air filter and the supercharger.

[0011] Preferably, the centrifugal pump is provided with a drain pipe for discharging liquid water separated from the air and exhaust gas.

[0012] Preferably, when the humidity detected by the humidity sensor is lower than a preset value and the exhaust gas recirculation system is not turned on, the centrifugal pump stops working.

[0013] Preferably, the centrifugal pump operates when the humidity sensor detects that the humidity is higher than a preset value, and / or the exhaust gas recirculation system is turned on.

[0014] According to a second aspect of the present invention, a vehicle is provided, wherein the vehicle comprises the water vapor separation supercharged intake system as described above.

[0015] The water vapor separation supercharged air intake system and vehicle according to the embodiments of the present invention have the following beneficial effects:

[0016] The electronic control unit can control the centrifugal pump to separate the water vapor in the air and exhaust gas, increase the proportion of oxygen in the mixture, facilitate complete combustion, and thus improve the power output of the engine, and prevent water droplets from entering the combustion chamber and causing single-cylinder misfire or missing cylinders.

[0017] While separating water, the kinetic energy generated by the rotation of the impeller of the centrifugal pump can also pressurize the airflow, thereby improving the performance of the engine.

[0018] This can effectively solve the problem of high water vapor content in the mixed gas during intake of the existing engine.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 Schematic diagram of a water vapor separation supercharged intake system according to the present invention.

[0022] Figure 2 It is a control principle diagram of the water vapor separation supercharged intake system according to the present invention.

[0023] Figure numerals: 1-intercooler; 2-humidity sensor; 20-air intake pipe; 3-exhaust gas recirculation system; 30-exhaust gas intake pipe; 4-centrifugal pump; 40-drain pipe; 5-engine; 50-exhaust gas outlet pipe; 51-intake manifold; 6-electronic control unit; 7-supercharger; 70-mixed gas intake pipe; 8-catalyst; 80-exhaust pipe; 9-air filter. DETAILED DESCRIPTION

[0024] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0025] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0026] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0028] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0029] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0030] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0031] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0032] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0033] like Figure 1 and Figure 2 As shown, according to a first aspect of the present invention, a water vapor separation supercharged air intake system is provided, the water vapor separation supercharged air intake system comprising an intercooler 1, a humidity sensor 2, an exhaust gas recirculation system 3, a centrifugal pump 4 and an electronic control unit 6.

[0034] In the following description, reference will be made to Figure 1 and Figure 2 The specific structures of the above components of the water vapor separation supercharged intake system and the connection relationship of the above components are specifically described.

[0035] like Figure 1 and Figure 2As shown, in the embodiment, the air intake pipeline 20 and the exhaust gas intake pipeline 30 can be connected to the intercooler 1 respectively, so that both the air and the exhaust gas can be transported to the intercooler 1. Among them, a humidity sensor 2 can be provided on the air intake pipeline 20 for detecting the humidity of the air. The exhaust gas intake pipeline 30 can be connected to the exhaust gas recirculation system 3 (i.e., EGR). When the exhaust gas recirculation system 3 is turned on, the exhaust gas containing water vapor will flow to the intercooler 1. The intercooler 1 can be connected to the centrifugal pump 4. After the air and the exhaust gas are cooled in the intercooler 1, the water vapor therein will condense into water droplets and be brought into the centrifugal pump 4 by the air flow. The centrifugal pump 4 can use the impeller rotation to make the liquid water centrifugal motion, thereby separating the water and gas. The separated liquid water is collected and discharged, and the gas can flow to the engine 5 to participate in the combustion again. The electronic control unit 6 can be connected to the humidity sensor 2 and the exhaust gas recirculation system 3 through a wiring harness for signal transmission. Specifically, the electronic control unit 6 can collect the humidity information of the humidity sensor 2 and the opening information of the exhaust gas recirculation system 3. The electronic control unit 6 (i.e., ECU) can also be connected to the centrifugal pump 4 through a wiring harness, and the electronic control unit 6 can control the working state of the centrifugal pump 4 according to the humidity information and the opening information, thereby adjusting the degree of separation of water vapor. Such a configuration increases the proportion of oxygen in the air and exhaust gas, which is conducive to full combustion, thereby improving the power output of the engine 5, and can prevent water droplets from entering the combustion chamber, causing single-cylinder misfires or missing cylinders in the engine 5. Preventing water from entering the body can also reduce the impact on the lubrication performance of the engine oil, ensure the lubrication environment of the internal parts of the engine 5, and reduce wear and loss. In addition, while the centrifugal pump 4 separates water, the kinetic energy generated by the rotation of its impeller can also pressurize the airflow, further improving the performance of the engine 5.

[0036] Preferably, Figure 1 As shown, in an embodiment, the water vapor separation supercharged intake system may further include a supercharger 7 for supercharging the airflow. The air intake pipeline 20 may be connected to the supercharger 7 so that air can flow to the supercharger 7. The exhaust gas intake pipeline 30 may also be connected to the supercharger 7 so that when the exhaust gas recirculation system 3 is turned on, the exhaust gas participating in the circulation can flow to the supercharger 7 through the exhaust gas intake pipeline 30. The exhaust gas and air can be mixed into a mixed gas in the supercharger 7. The supercharger 7 may be connected to the intercooler 1 through the mixed gas intake pipeline 70 so that the mixed gas can be transported to the intercooler 1 for cooling. After the mixed gas is cooled, the water vapor therein condenses into water droplets when it is cold, and enters the centrifugal pump 4 driven by the mixed gas to perform gas-liquid separation. Preferably, the centrifugal pump 4 may be provided with a drain pipe 40, and the liquid water separated and collected in the centrifugal pump 4 may be discharged by itself through the drain pipe 40.

[0037] Preferably, Figure 1 As shown, in the embodiment, the water vapor separation supercharged intake system may further include an intake manifold 51. The intake manifold 51 may be connected to the engine 5. The centrifugal pump 4 may be connected to the intake manifold 51 through a pipeline, so that the mixed gas after gas-liquid separation can flow to the intake manifold 51, and flow to the engine 5 through the intake manifold 51, and finally the mixed gas enters the combustion chamber of the engine 5 for combustion to generate exhaust gas. More preferably, the engine 5 may be connected to the supercharger 7 through an exhaust gas outlet pipeline 50, so that the exhaust gas generated after the combustion of the mixed gas can flow to the supercharger 7.

[0038] Further, preferably, Figure 1 As shown, in an embodiment, the water vapor separation supercharged intake system may further include a catalyst 8. Specifically, the catalyst 8 may be connected to the supercharger 7 through a pipeline. The exhaust gas discharged from the supercharger 7 may flow through a pipeline to the catalyst 8 for catalysis to reduce harmful gases therein. The catalyst 8 may convert harmful gases into harmless carbon dioxide, water vapor and nitrogen through oxidation and reduction. The catalyst 8 may be connected to an exhaust pipe 80 so that the exhaust gas may be discharged from the exhaust pipe 80 to the outside of the vehicle after catalysis. In addition, the exhaust gas recirculation system 3 may also be connected to the catalyst 8. When the exhaust gas recirculation system 3 is turned on, the exhaust gas after catalysis may enter the exhaust gas recirculation system 3, and be transported to the supercharger 7 to mix with air to form a mixed gas, and then the water is removed through the intercooler 1 and the centrifugal pump 4, and finally transported to the engine 5 for re-combustion. In the process, the opening degree of the exhaust gas recirculation system 3 determines the amount of exhaust gas entering the exhaust gas recirculation system 3, and then indirectly affects the content of water vapor in the mixed gas. The opening information of the exhaust gas recirculation system 3 can be transmitted to the electronic control unit 6 through the wiring harness, so that the electronic control unit 6 can better control the centrifugal pump 4.

[0039] In addition, preferably, Figure 1 As shown, in an embodiment, the water vapor separation supercharged intake system may further include an air filter 9 for reducing impurities in the inhaled air. The air intake pipeline 20 may be connected to the air filter 9, and the air is filtered by the air filter 9 and then transported to the supercharger 7 through the air intake pipeline 20 for supercharging. Preferably, the humidity sensor 2 may be arranged between the air filter 9 and the supercharger 7, and the humidity sensor 2 may directly detect the humidity of the air filtered by the air filter 9, so as to obtain humidity information more accurately, thereby enabling the electronic control unit 6 to better control the centrifugal pump 4.

[0040] Preferably, Figure 2As shown, in the embodiment, the electronic control unit 6 can control the working state of the centrifugal pump 4 according to the humidity information and the opening information to adjust the separation degree of water vapor. Specifically, the electronic control unit 6 can be provided with a preset value of humidity for comparison with the humidity detected by the humidity sensor 2. When the humidity detected by the humidity sensor 2 is higher than the preset value, and / or the exhaust gas recirculation system 3 is turned on, the electronic control unit 6 controls the centrifugal pump 4 to work. When the humidity detected by the humidity sensor 2 is lower than the preset value and the exhaust gas recirculation system 3 is not turned on, the electronic control unit 6 controls the centrifugal pump 4 to stop working. In this way, it is possible to avoid excessive moisture content in the mixed gas. In addition, the power of the centrifugal pump 4 can be calibrated so that the electronic control unit 6 can adjust the power of the centrifugal pump 4 in real time according to the opening information of the exhaust gas recirculation system 3 and the humidity information detected by the humidity sensor 2. It can be that when the humidity detected by the humidity sensor 2 increases, the electronic control unit 6 controls the power of the centrifugal pump 4 to increase; when the humidity detected by the humidity sensor 2 decreases, the electronic control unit 6 controls the power of the centrifugal pump 4 to decrease. When the opening degree of the exhaust gas recirculation system 3 increases, the electronic control unit 6 controls the power of the centrifugal pump 4 to increase; when the opening degree detected by the humidity sensor 2 decreases, the electronic control unit 6 controls the power of the centrifugal pump 4 to decrease.

[0041] Furthermore, according to a second aspect of the present invention, there is provided a vehicle, the vehicle comprising the water vapor separation supercharged intake system as described above.

[0042] During use, the electronic control unit 6 of the water vapor separation supercharged intake system can control the start and stop and power of the centrifugal pump 4 according to the humidity information detected by the humidity sensor 2 and the opening information of the exhaust gas recirculation system 3, thereby adjusting the degree of separation of water vapor. This arrangement increases the proportion of oxygen in the mixture of air and exhaust gas, which is conducive to full combustion, thereby improving the power output of the engine 5, and can prevent water droplets from entering the combustion chamber, causing single-cylinder misfires or missing cylinders in the engine 5. Preventing water from entering the body can also reduce the impact on the lubrication performance of the engine oil, ensure the lubrication environment of the internal parts of the engine 5, and reduce wear and loss. In addition, while the centrifugal pump 4 separates water, the kinetic energy generated by the rotation of its impeller can also pressurize the airflow, further improving the performance of the engine 5.

[0043] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A water vapor separation supercharged air intake system, arranged in a vehicle, characterized in that: The water vapor separation supercharging intake system comprises: Intercooler; A humidity sensor is arranged in an air intake pipeline, wherein the air intake pipeline is connected to the intercooler; an exhaust gas recirculation system connected to the intercooler via an exhaust gas intake pipeline; a centrifugal pump connected to the intercooler, the centrifugal pump connected to the engine of the vehicle; and An electronic control unit is connected to the humidity sensor and the exhaust gas recirculation system through a wiring harness, and is used to collect humidity information from the humidity sensor and opening information from the exhaust gas recirculation system. The electronic control unit is connected to the centrifugal pump through a wiring harness, and the electronic control unit can control the working state of the centrifugal pump according to the humidity information and the opening information.

2. The water vapor separation supercharged intake system according to claim 1, characterized in that: The water vapor separation supercharged intake system comprises a supercharger, the air intake pipeline is connected to the supercharger, the exhaust gas intake pipeline is connected to the supercharger, and the supercharger is connected to the intercooler through a mixed gas intake pipeline.

3. The water vapor separation supercharged intake system according to claim 2, characterized in that: The water vapor separation supercharged intake system comprises an intake manifold, the centrifugal pump is connected to the intake manifold, and the intake manifold is connected to the engine.

4. The water vapor separation supercharged intake system according to claim 3, characterized in that: The engine is connected to the supercharger through an exhaust gas outlet pipeline.

5. The water vapor separation supercharged intake system according to claim 4, characterized in that: The water vapor separation supercharged intake system further includes a catalyst, the supercharger is connected to the catalyst, the catalyst is connected to the exhaust pipe, and the exhaust gas recirculation system is connected to the catalyst.

6. The water vapor separation supercharged intake system according to claim 2, characterized in that: The water vapor separation supercharged intake system further includes an air filter, the air intake pipeline is connected to the air filter, and the humidity sensor is arranged between the air filter and the supercharger.

7. The water vapor separation supercharged intake system according to claim 1, characterized in that: The centrifugal pump is provided with a drain pipe for discharging the liquid water separated from the air and the exhaust gas.

8. The water vapor separation supercharged intake system according to any one of claims 1 to 7, characterized in that: When the humidity detected by the humidity sensor is lower than a preset value and the exhaust gas recirculation system is not turned on, the centrifugal pump stops working.

9. The water vapor separation supercharged intake system according to claim 8, characterized in that: When the humidity sensor detects that the humidity is higher than a preset value, and / or the exhaust gas recirculation system is turned on, the centrifugal pump works.

10. A vehicle, characterized in that: The vehicle comprises the water vapor separation supercharged intake system according to any one of claims 1 to 9.

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