Supercharger shell and vehicle

Abstract

The utility model discloses a supercharger shell and a vehicle, the supercharger shell comprises a shell body and a drainage structure, and an air inlet channel is formed in the shell body; the drainage structure is arranged at the outlet end of the air inlet channel and is suitable for collecting condensate and discharging the condensate out of the shell body. According to the supercharger shell, the service life of supercharger blades applying the EGR technology can be prolonged, the working performance of the supercharger blades applying the EGR technology can be improved, the surge risk of the supercharger can be reduced, and the noise reduction performance is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engines, in particular to a supercharger housing and a vehicle. Background Art

[0002] Exhaust Gas Recirculation (EGR) technology is a technology that returns part of the exhaust gas discharged by the engine to the intake manifold and mixes it with fresh air to enter the cylinder again for combustion. The exhaust gas contains a large amount of polyatomic gases such as carbon dioxide. Gases such as carbon dioxide cannot be burned, but due to their high specific heat capacity, they can absorb a large amount of heat, which can reduce the maximum combustion temperature of the mixture in the cylinder, improve the thermal efficiency of the engine, and the oxygen concentration of the mixture in the cylinder, thereby reducing nitrogen oxide emissions. However, since the exhaust gas contains water vapor, it will condense into a large number of water droplets when it enters the supercharger compressor and mixes with fresh cold air. The water droplets entering the supercharger compressor will cause damage to the supercharger impeller. When EGR is used, the supercharger intake temperature will increase, the supercharger efficiency will decrease, and surging and intake noise will be more likely to occur.

[0003] The patent with publication number CN114320677A and titled A Low-pressure EGR Water Heating Structure proposes a technical solution of setting up a heating system and an ice crushing system to heat and crush the ice formed by condensed water in the pipeline in front of the supercharger impeller. To a certain extent, it can improve the EGR rate when the engine is restarted and prevent large ice blocks from entering the supercharger compression casing and damaging the impeller. However, it has limited effect on preventing condensed water from entering the supercharger compression casing and damaging the impeller, and there is still a risk of surging and intake noise.

[0004] In the related art, for the supercharger compressor shell using EGR technology, condensed water is easy to enter the compressor shell of the supercharger and cause liquid hammer on the impeller, and surge and intake noise are easy to occur, which seriously affects the service life and efficiency of the supercharger, reduces the acoustic quality in the car, and causes noise interference to the driver and passengers. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a supercharger housing, which can improve the service life and working performance of supercharger blades using EGR technology, reduce the risk of supercharger surge, and optimize noise reduction performance.

[0006] The utility model also provides a vehicle with the supercharger housing.

[0007] According to the supercharger housing of the first aspect of the present invention, the supercharger housing includes: a housing body and a drainage structure, wherein the housing body is formed with an air inlet; the drainage structure is arranged at one end of the outlet of the air inlet and is suitable for collecting condensate and discharging the condensate from the housing body.

[0008] According to the supercharger housing of the utility model, condensate can be collected and discharged from the housing body through the drainage structure, so as to improve the service life and working performance of the supercharger blades using EGR technology. In addition, the drainage structure can also change the flow path and direction of the airflow in the intake duct, and improve the smoothness of the airflow, thereby reducing the risk of supercharger surge and optimizing the noise reduction performance.

[0009] According to some embodiments of the present invention, the drainage structure has a first collecting part, a second collecting part and a discharge part which are connected in sequence, and the second collecting part is located at the bottom of the first collecting part, and the discharge part is located at one end of the second collecting part.

[0010] Further, the first collecting portion is configured as an annular groove formed on the inner wall of the air inlet passage.

[0011] Further, the annular groove is configured to be a plurality of adjacent grooves arranged in the extending direction of the air inlet passage.

[0012] Furthermore, the second collecting portion is consistent with the extending direction of the air inlet duct and is arranged obliquely.

[0013] Further, the second collecting portion is configured to be a plurality of portions spaced apart in a circumferential direction of the air inlet passage.

[0014] In some embodiments, the discharge portion is configured as an arc-shaped groove and is located at one end of the second collecting portion.

[0015] Furthermore, the arc-shaped groove has a discharge port, and the discharge port is located at the lowest point of the arc-shaped groove.

[0016] Furthermore, the shell body also has an exhaust duct, and the supercharger housing further includes: a guide pipe, a guide channel is formed in the guide pipe, and an inlet and an outlet of the guide channel are respectively connected to the discharge port and the exhaust duct.

[0017] According to a vehicle of an embodiment of the second aspect of the utility model, the vehicle comprises: a supercharger housing as described in any one of the above embodiments.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a supercharger housing portion according to some embodiments of the utility model;

[0021] Figure 2 is a schematic diagram of a supercharger housing according to some embodiments of the utility model;

[0022] Figure 3 yes Figure 2 Middle AA section view;

[0023] Figure 4 yes Figure 2 Middle BB cross section.

[0024] Reference numerals:

[0025] Supercharger housing 1;

[0026] Shell body 11, air inlet 11a, exhaust 11b;

[0027] A first collecting part 121;

[0028] A second collecting part 122;

[0029] A discharge portion 123, a discharge port 123a;

[0030] The flow guide pipe 13 and the flow guide channel 13a. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0033] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0036] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0039] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0040] The term "plurality" used in the present application refers to two or more (including two).

[0041] Reference below Figure 1-Figure 4 A supercharger housing 1 and a vehicle according to an embodiment of the present invention are described.

[0042] like Figure 1 and Figure 2 As shown, according to the supercharger housing 1 of the first embodiment of the utility model, the supercharger housing 1 includes: a shell body 11 and a drainage structure.

[0043] The shell body 11 is formed with an air inlet 11 a ; the drainage structure is arranged at one end of the outlet of the air inlet 11 a and is suitable for collecting condensed liquid and discharging it from the shell body 11 .

[0044] Specifically, the shell body 11 may be formed with a through intake duct 11a, and part of the exhaust gas discharged by the engine may flow into the intake duct 11a for reuse; a drainage structure may be provided at one end of the outlet of the intake duct 11a, and when the exhaust gas enters the intake duct 11a and mixes with fresh cold air, the condensate formed by condensation may be collected by the drainage structure and discharged from the shell body 11, thereby preventing the condensate from flowing to the supercharger blades and protecting the supercharger blades from being damaged by the condensate.

[0045] According to the supercharger housing 1 of the utility model, condensate can be collected and discharged from the shell body 11 through the drainage structure, so as to improve the service life and working performance of the supercharger blades using EGR technology. In addition, the drainage structure can also change the flow path and direction of the airflow in the intake duct 11a, and improve the smoothness of the airflow, thereby reducing the risk of supercharger surge and optimizing the noise reduction performance.

[0046] like Figure 1 As shown, according to some embodiments of the present invention, the drainage structure has a first collecting portion 121, a second collecting portion 122 and a discharge portion 123 which are connected in sequence, and the second collecting portion 122 is located at the bottom of the first collecting portion 121, and the discharge portion 123 is located at one end of the second collecting portion 122.

[0047] Specifically, the first collecting part 121 and the second collecting part 122 can collect condensate, the second collecting part 122 is connected with the first collecting part 121 and is located at the bottom of the first collecting part 121, the condensate collected by the first collecting part 121 can be automatically collected to the second collecting part 122 under the action of gravity, and the second collecting part 122 is connected with the discharge part 123, the condensate collected in the second collecting part 122 can flow to the discharge part 123 and be discharged from the shell body 11 through the discharge part 123, thereby achieving a good protection effect on the supercharger blades.

[0048] like Figure 1 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the first collecting portion 121 is configured as an annular groove formed on the inner wall of the air inlet passage 11 a.

[0049] Specifically, the first collecting portion 121 can be constructed as an annular groove, the axis of which can be colinear with the axis of the air inlet 11a, the annular groove is formed on the inner wall of the air inlet 11a and extends in the circumferential direction of the air inlet 11a, the annular groove is recessed in the direction away from the axis of the air inlet 11a, and when the exhaust gas discharged from the engine enters the air inlet 11a and mixes with the fresh cold air, the condensate formed by condensation can fall into the annular groove and automatically flow to the bottom of the annular groove along the annular groove to be collected in the second collecting portion 122. Therefore, by constructing the first collecting portion 121 as an annular groove formed on the inner wall of the air inlet 11a, it is helpful to improve the collection efficiency and discharge efficiency of the condensate by the first collecting portion 121. In addition, since the annular groove extends in the circumferential direction of the air inlet 11a, the annular groove can also change the flow direction of the airflow in the air inlet 11a, thereby playing a good role in eliminating the intake noise.

[0050] As shown Figure 1 , Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the annular groove is configured as a plurality of adjacent grooves arranged in the extending direction of the air inlet passage 11 a.

[0051] Specifically, the annular grooves can be constructed in multiple numbers, and the multiple annular grooves are adjacently arranged in the extension direction of the intake duct 11a (the axial direction of the intake duct 11a). When the exhaust gas discharged by the engine enters the intake duct 11a and mixes with the fresh cold air, the condensed liquid can fall into the multiple annular grooves and automatically flow to the bottom of the annular grooves along the multiple annular grooves for discharge. By constructing the annular grooves in multiple numbers, on the one hand, the condensate collection area can be increased, and the collection efficiency and effect of the condensate can be improved; on the other hand, by setting multiple annular grooves, more possibilities can be provided for changing the direction of the airflow channel, and the noise reduction effect can be further enhanced.

[0052] like Figure 1and Figure 3 As shown, according to some embodiments of the present invention, the second collecting portion 122 is consistent with the extension direction of the air inlet duct 11a and is arranged obliquely.

[0053] Specifically, the second collecting portion 122 can be arranged on the inner wall of the air inlet 11a and located at the bottom of the first collecting portion 121. The extension direction of the second collecting portion 122 is consistent with the extension direction of the air inlet 11a, wherein the second collecting portion 122 can be inclined in the direction close to the outlet of the air inlet 11a, toward the direction close to or away from the axis of the air inlet 11a, so that the second collecting portion 122 has a certain slope in the extension direction. When the condensate collected by the first collecting portion 121 gathers to the bottom and flows into the second collecting portion 122, the condensate can automatically flow to one end of the second collecting portion 122 (the end farther from the axis) along the inclined surface of the second collecting portion 122, and the discharge portion 123 can be located at one end of the second collecting portion 122, so that the condensate collected by the first collecting portion 121 and the second collecting portion 122 can automatically flow to the discharge portion 123 to be discharged from the shell body 11 through the discharge portion 123.

[0054] In addition, in some specific embodiments of the present invention, the second collecting portion 122 may be configured as a linear groove or a curved groove that is recessed in a direction away from the axis of the air inlet passage 11 a to provide a flow path for the condensate.

[0055] It should be pointed out that in the prior art, the air inlet 11a is generally a tapered structure in which the cross-sectional area gradually decreases from the inlet to the outlet. The second collecting portion 122 can be correspondingly arranged to be inclined in the direction close to the outlet of the air inlet 11a and toward the direction close to the axis of the air inlet 11a. The discharge portion 123 is arranged at one end of the second collecting portion 122 in the extension direction away from the outlet of the air inlet 11a. In this way, the discharge portion 123 is located at the lowest position of the second collecting portion 122, which can ensure that the condensate in the second collecting portion 122 can automatically flow into the discharge portion 123.

[0056] like Figure 1 and Figure 3 As shown, according to some embodiments of the present invention, the second collecting portion 122 is configured to be a plurality of second collecting portions 122 spaced apart in the circumferential direction of the air inlet passage 11 a.

[0057] Specifically, the second collecting part 122 can be configured as a plurality of parts, and the plurality of second collecting parts 122 can be arranged at intervals in the circumferential direction of the air inlet 11a, each second collecting part 122 is connected to the first collecting part 121, and the plurality of second collecting parts 122 can be interlaced with the plurality of first collecting parts 121 to form a through channel. By configuring the second collecting part 122 as a plurality of parts, on the one hand, the condensate in the air inlet 11a and the first collecting part 121 can flow to the discharge part 123 along the plurality of second collecting parts 122, which is conducive to improving the flow smoothness of the condensate and improving the condensate discharge efficiency; on the other hand, by configuring the second collecting part 122 as a plurality of parts, it can further provide more possibilities for changing the direction of the airflow channel, and further enhance the noise reduction effect.

[0058] like Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the discharge portion 123 is configured as an arc-shaped groove and is located at one end of the second collecting portion 122 .

[0059] Specifically, the discharge portion 123 can be constructed as an arc-shaped groove that is recessed in a direction away from the axis of the air inlet 11a, and the arc-shaped groove is located at one end of the second collecting portion 122. The condensate flowing through the second collecting portion 122 and the condensate in the air inlet 11a can flow to the arc-shaped groove and can be discharged from the shell body 11 from the arc-shaped groove. The distance between the bottom wall of the arc-shaped groove and the axis of the air inlet 11a can be greater than the distance between the bottom wall of the second collecting portion 122 and the axis of the air inlet 11a, so as to ensure that the condensate in the second collecting portion 122 will not overflow after flowing into the arc-shaped groove, and the reliability of liquid discharge can be improved.

[0060] It should be pointed out that the length of the above-mentioned arc groove in the circumferential direction of the air inlet duct 11a is greater than the total length of the multiple second collecting parts 122 in the circumferential direction of the air inlet duct 11a. In this way, it can be ensured that each second collecting part 122 is connected to the arc groove, and the condensate in each second collecting part 122 can flow into the arc groove to achieve the discharge of the condensate.

[0061] like Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the arc-shaped slot has a discharge port 123a, and the discharge port 123a is located at the lowest point of the arc-shaped slot.

[0062] Specifically, a discharge port 123a can be provided at the lowest point of the arc groove, and the discharge port 123a is connected to the air inlet 11a. When the condensate in the second collecting portion 122 and the condensate in the air inlet 11a flow to the arc groove, the condensate can flow along the arc-shaped inner wall of the arc groove to the lowest point of the arc groove, and the discharge port 123a is located at the lowest point of the arc groove, so that the condensate collected by the first collecting portion 121 and the second collecting portion 122 and the condensate directly falling into the arc groove in the air inlet 11a can all automatically flow to the discharge port 123a, and then the discharge port 123a can discharge the condensate smoothly.

[0063] like Figure 2 and Figure 4 As shown, according to some embodiments of the present invention, the shell body 11 also has an exhaust duct 11b, and the supercharger housing 1 also includes: a guide pipe 13, a guide channel 13a is formed in the guide pipe 13, and the inlet and outlet of the guide channel 13a are respectively connected to the exhaust port 123a and the exhaust duct 11b.

[0064] Specifically, the guide pipe 13 can be located between the air inlet 11a and the exhaust duct 11b of the shell body 11, and a guide channel 13a is formed in the guide pipe 13, and the inlet and outlet of the guide channel 13a are respectively connected to the outlet 123a and the exhaust duct 11b, and the inlet position height of the guide channel 13a is higher than the outlet position height, when the condensate flows along the arc inner wall of the arc groove to the lowest point of the arc groove, the condensate can flow out from the outlet 123a and enter the guide channel 13a through the inlet, and the condensate flowing through the guide channel 13a can enter the exhaust duct 11b from the outlet, and finally the exhaust duct 11b can discharge the condensate from the shell body 11. In addition, the guide channel 13a is provided between the air inlet 11a and the exhaust duct 11b, which can also improve the smoothness of the air flow, help reduce the risk of supercharger surge, and further improve the working performance and life of the supercharger.

[0065] According to the collection and discharge process of the condensate in the supercharger housing 1 of the utility model, the condensate in the intake duct 11a can directly enter the first collecting part 121, the second collecting part 122 or the discharge part 123, wherein the condensate entering the first collecting part 121 can be collected to the second collecting part 122 at the bottom under the action of its own gravity, the condensate flowing into the second collecting part 122 from the first collecting part 121 and the condensate directly entering the second collecting part 122 from the intake duct 11a can flow from the second collecting part 122 to the discharge part 123, the condensate flowing into the discharge part 123 from the first collecting part 121 and the second collecting part 122 and the condensate directly entering the discharge part 123 from the intake duct 11a can enter the guide channel 13a from the discharge port 123a of the discharge part 123, and enter the exhaust duct 11b through the flow outlet of the guide channel 13a, and finally the condensate can be discharged from the exhaust duct 11b.

[0066] like Figure 1-Figure 4 As shown, according to the vehicle of the second embodiment of the utility model, the vehicle includes: the supercharger housing 1 described in any one of the above embodiments, and the technical effects produced are consistent with those in the above embodiments, which will not be repeated here.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A supercharger housing, characterized in that: include: A shell body (11), wherein the shell body (11) is formed with an air inlet (11a); A drainage structure, wherein the drainage structure is arranged at one end of the outlet of the air inlet passage (11a) and is suitable for collecting condensate and discharging it from the shell body (11), wherein the drainage structure comprises a first collecting portion (121), a second collecting portion (122) and a discharge portion (123) which are connected in sequence, wherein the second collecting portion (122) is located at the bottom of the first collecting portion (121), and the discharge portion (123) is located at one end of the second collecting portion (122).

2. The supercharger housing according to claim 1, characterized in that: The first collecting portion (121) is configured as an annular groove formed on the inner wall of the air inlet passage (11a).

3. The supercharger housing according to claim 2, characterized in that: The annular groove is configured as a plurality of annular grooves arranged adjacent to each other in the extending direction of the air inlet passage (11a).

4. The supercharger housing according to claim 1, characterized in that: The second collecting portion (122) is consistent with the extending direction of the air inlet duct (11a) and is arranged obliquely.

5. The supercharger housing according to claim 4, characterized in that: The second collecting portion (122) is configured to be a plurality of portions which are spaced apart in the circumferential direction of the air inlet passage (11a).

6. The supercharger housing according to claim 1, characterized in that: The discharge portion (123) is configured as an arc-shaped groove and is located at one end of the second collecting portion (122).

7. The supercharger housing according to claim 6, characterized in that: The arc-shaped groove has a discharge port (123a), and the discharge port (123a) is located at the lowest point of the arc-shaped groove.

8. The supercharger housing according to claim 7, characterized in that: The shell body (11) also has an exhaust duct (11b), and the supercharger housing further comprises: a flow guide pipe (13), a flow guide channel (13a) is formed in the flow guide pipe (13), and an inlet and an outlet of the flow guide channel (13a) are respectively connected to the exhaust port (123a) and the exhaust duct (11b).

9. A vehicle, characterized in that: include: The supercharger housing according to any one of claims 1 to 8.

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