Engine air inlet pipe and engine air inlet assembly of vehicle

Abstract

The utility model discloses an engine air inlet pipe and an engine air inlet assembly of a vehicle, one side end portion of the engine air inlet pipe is fixed on a vehicle body frame through an air inlet pipe installation portion, and the air inlet pipe installation portion comprises a plurality of installation protrusions arranged on at least one side end face of the engine air inlet pipe in a protruding mode. The multiple installation protrusions comprise at least one first installation protrusion and at least one second installation protrusion which are arranged in the extending direction of the vehicle body frame at intervals. When viewed in the extending direction of the vehicle body frame, the included angle between the first installation direction of the first installation protrusion relative to the vehicle body frame and the second installation direction of the second installation protrusion relative to the vehicle body frame ranges from 45 degrees to 180 degrees. For different vehicle types, after the vehicle body frame is lifted, the vehicle body frame can be installed and fixed through the first installation protrusions or the second installation protrusions, and the vehicle body frame has the advantages of being higher in applicability and more flexible and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field related to an engine air intake system, in particular to an engine air intake pipe of a vehicle. Background Art

[0002] The intake system is responsible for providing clean, clear, and appropriately resistant gas to the vehicle engine for fuel combustion. The intake system generally includes three parts: the intake pipe, the air filter, and the outlet pipe. The air filter is generally installed on the powertrain or the longitudinal beam of the vehicle body. The outlet pipe connects the engine and the air filter. The intake pipe is connected to the vehicle body and will change with different vehicle bodies.

[0003] The current automobile market is highly competitive, and various OEMs have launched new models. Generally speaking, different models launched by the same automaker are mostly developed on the same platform and the same powertrain, and the difference lies in the difference in model, body, etc., and the air intake system often cannot be used in the face of the variability of the whole vehicle. For example, for a model on the same platform, the air intake system and body installation of pure fuel vehicles and hybrid models are generally different. The air intake system often cannot be used in the face of the variability of the whole vehicle, and some parts need to be redeveloped. Both the development cycle and the unit cost are under great test.

[0004] Specifically, the existing intake pipe design is usually installed at the upper end of the frame at the front end of the engine compartment, wherein the intake pipe installation diagram is as follows: Figure 1 As shown, the top of the intake pipe 1 has a mounting hole 2, which is connected to the upper end of the frame 4 at the front end of the engine compartment through the mounting hole 2 and the plastic buckle 3. This installation method has two advantages. One is to avoid water inhalation, which is beneficial to the wading condition of the whole vehicle. The other is to facilitate installation, high visualization and convenient operation. Figure 1 The three plastic clips 3 are installed from the Z direction downwards. However, in another project, for example Figure 2 After the front frame 4 is lifted, the original air intake pipe 1 can no longer be fixed on the front frame 4 from above, so the mold needs to be redesigned, resulting in unnecessary waste of resources. Normal products use the same set of molds, the share increases, and the unit price will decrease.

[0005] For example, in the prior art, a Chinese patent with publication number CN206904412U discloses a cold air intake pipe for an automobile engine, and specifically discloses a solution of connecting the intake pipe by setting a flange on the intake pipe, but does not propose how to solve the problem of the intake pipe being applied to different models or platforms, nor does it disclose how to solve the problem of installing the same intake pipe on different models or platforms.

[0006] Therefore, there is a problem in the prior art that the air intake pipe cannot be installed on different platforms or models, and it is necessary to redesign the mold or set the installation structure. Utility Model Content

[0007] The utility model aims to solve the problem in the prior art that the air intake pipe cannot be installed on different platforms or vehicle models and needs to be redesigned to open the mold or set up the installation structure.

[0008] To solve the above technical problems, the utility model discloses an engine intake pipe of a vehicle, one end of which is fixed to the vehicle body frame through an intake pipe mounting portion, and the intake pipe mounting portion includes a plurality of mounting protrusions protruding from at least one end surface of the engine intake pipe.

[0009] The plurality of mounting protrusions include at least one first mounting protrusion and at least one second mounting protrusion spaced apart along the extension direction of the vehicle body frame. When viewed along the extension direction of the vehicle body frame, an angle between a first mounting direction of the first mounting protrusion relative to the vehicle body frame and a second mounting direction of the second mounting protrusion relative to the vehicle body frame is between 45° and 180°.

[0010] According to the above technical solution, a first mounting protrusion and a second mounting protrusion are arranged on the engine intake pipe, and the first mounting protrusion and the second mounting protrusion can be respectively used as a disassembly connection component and connected to the vehicle body frame. Specifically, the first mounting protrusion is installed along the first mounting direction when connected to the vehicle body frame, and the second mounting protrusion is installed along the second mounting direction when connected to the vehicle body frame, that is, the engine intake pipe can be installed on the vehicle body frame in at least two directions. When the engine intake pipe is used on different platforms or vehicle models, it can be installed and used according to the needs through the first mounting protrusion or the second mounting protrusion, and there is no need to redesign the mold, nor to readjust the mounting structure of the vehicle body frame or the engine intake pipe. For example, for different vehicle models, when the vehicle body frame is raised, it can be installed and fixed through the first mounting protrusion or the second mounting protrusion, which has the advantages of higher applicability, more convenient installation, and cost reduction and efficiency improvement. In addition, the angle between the first mounting direction and the second mounting direction is between 45° and 180°, which can be flexibly adjusted for different vehicle models, different installation requirements, and different intake pipes.

[0011] The utility model also discloses an engine air intake pipe of a vehicle, wherein at least one first mounting protrusion and at least one second mounting protrusion are protrudingly arranged on the same side end surface of the engine air intake pipe.

[0012] The first mounting protrusion is arranged at the middle of one end surface, and the first mounting direction is perpendicular to the extension direction of the body frame. In addition, the second mounting protrusion is arranged at both ends of one end surface, and the second mounting direction is also perpendicular to the extension direction of the body frame and orthogonal to the first mounting direction.

[0013] By adopting the above technical solution, at least one first mounting protrusion and at least one second mounting protrusion are protruded from the same side end surface of the engine intake pipe, and the first mounting direction and the second mounting direction are orthogonal. The advantage of this arrangement is that the first mounting protrusion and the second mounting protrusion are arranged on the same side, which is more convenient to manufacture and install, and the first mounting protrusion or the second mounting protrusion can be selected to install the engine intake pipe according to the change of the vehicle body frame or the installation position.

[0014] Further preferably, the first mounting protrusions are arranged in pairs on the same side end surface of the engine intake pipe, arranged at equal intervals along the extension direction of the vehicle body frame, and symmetrically arranged relative to the center line of one side end surface of the engine intake pipe. It can be understood that in this arrangement, the first mounting protrusions are optimized.

[0015] The utility model also discloses an engine air intake pipe of a vehicle. At least one first mounting protrusion and at least one second mounting protrusion are respectively protruded from both side end surfaces of the engine air intake pipe close to the vehicle body frame.

[0016] The first mounting protrusions are arranged at equal intervals on one side end surface along the extension direction of the body frame, and the first mounting direction is perpendicular to the extension direction of the body frame. In addition, the second mounting protrusions are arranged at both ends of one side end surface, and the second mounting direction is also perpendicular to the extension direction of the body frame and opposite to the first mounting direction.

[0017] By adopting the above technical solution, at least one first mounting protrusion and at least one second mounting protrusion are respectively arranged on the end surfaces on both sides, which makes installation more convenient.

[0018] The utility model also discloses an engine air intake pipe of a vehicle. When viewed along the extension direction of the vehicle body frame, the end of the first mounting protrusion away from the engine air intake pipe abuts against the vehicle body frame and is detachably connected.

[0019] The end of the first mounting protrusion connected to the vehicle body frame is provided with a first mounting hole, and the first mounting hole is matched with a first fixing member detachably connected to the vehicle body frame, and the first fixing member can be adapted in the first mounting hole along a first mounting direction.

[0020] With the above technical solution, the first mounting hole is provided on the first mounting protrusion, and the first mounting protrusion is detachably fixed to the vehicle body frame by the first fixing member, which makes the installation simpler and more convenient.

[0021] The utility model also discloses an engine air intake pipe of a vehicle. When viewed along the extension direction of the vehicle body frame, the end of the second mounting protrusion away from the engine air intake pipe is detachably connected to the vehicle body frame.

[0022] The end of the second mounting protrusion connected to the vehicle body frame is provided with a second mounting hole, and the second mounting hole is matched with a second fixing member detachably connected to the vehicle body frame, and the second fixing member can be adapted in the second mounting hole along a second mounting direction.

[0023] By adopting the above technical solution, the second mounting hole is provided on the second mounting protrusion, and the second mounting protrusion is detachably fixed to the vehicle body frame by the second fixing member, so the installation and disassembly are also simple and convenient.

[0024] The utility model also discloses an engine air intake pipe of a vehicle, the engine air intake pipe comprises an air intake section and an air outlet section connected end to end, wherein in the extension direction of the vehicle body frame, the cross-sectional area of ​​the air inlet at the end of the air intake section is larger than the cross-sectional area of ​​the air outlet at the end of the air outlet section.

[0025] When viewed along the extension direction of the vehicle body frame, the pipelines at the portion of the air intake section close to the air intake port and at the junction of the air intake section and the air outlet section are both arc-shaped pipelines; and, the inner side of the portion of the air intake section close to the air intake port has a first arc-shaped transition portion with an increased radius, and the outer side of the junction of the air intake section and the air outlet section has a second arc-shaped transition portion with an increased radius.

[0026] Further preferably, the turning radius of the first arc-shaped transition portion is 15-25 mm, the turning radius of the second arc-shaped transition portion is 23-30 mm, and the inner diameter of the tube at the junction of the air inlet section and the air outlet section is 62-65 mm.

[0027] By adopting the above technical solution, the radius of the first arc-shaped transition portion and the second arc-shaped transition portion of the pipeline at the junction of the intake section and the outlet section is increased, which can effectively reduce the flow velocity, thereby reducing the pipe pressure of the intake pipe and meeting the engine's requirements for the intake pipe pressure drop.

[0028] The utility model also discloses an engine air intake pipe, which includes an air intake section and an air outlet section connected end to end. The side wall of the air intake section and the wall of the joint between the air intake section and the air outlet section are also provided with a plurality of sound insulation cottons.

[0029] By adopting the above technical solution and setting a plurality of sound insulation cottons, the noise of the engine intake pipe can be effectively reduced, the intake port noise can be improved, and the NVH comprehensive performance of the intake pipe can be improved.

[0030] The utility model also discloses an engine air intake assembly, including an engine air intake pipe of any of the above-mentioned vehicles, and also including an air intake resonator, an air filter and an air outlet pipe, wherein the air intake resonator is arranged on one side of the air filter, the air outlet end of the engine air intake pipe is connected to the air inlet of the air filter, the air outlet end of the air filter is connected to the air outlet pipe, and the air outlet pipe is connected to the engine throttle.

[0031] In summary, the present application discloses an engine intake pipe of a vehicle, wherein one end of the engine intake pipe is fixed to a vehicle body frame through an intake pipe mounting portion, and the intake pipe mounting portion includes a plurality of mounting protrusions protruding from at least one end face of the engine intake pipe, and the plurality of mounting protrusions include at least one first mounting protrusion and at least one second mounting protrusion arranged at intervals along the extension direction of the vehicle body frame. The first mounting protrusion is installed along the first mounting direction when connected to the vehicle body frame, and the second mounting protrusion is installed along the second mounting direction when connected to the vehicle body frame, that is, the engine intake pipe can be installed on the vehicle body frame in at least two directions, and can be installed and used through the first mounting protrusion or the second mounting protrusion according to requirements, without the need to redesign the mold, and without the need to readjust the mounting structure of the vehicle body frame or the engine intake pipe, and has the advantages of higher applicability, more convenient installation, and cost reduction and efficiency improvement, and by adjusting and increasing the inner radius of the intake section and the outlet section, the flow velocity is reduced and the prescribed pressure drop requirements are met, and the plurality of sound insulation cottons are provided to improve the intake port noise and improve the NVH comprehensive performance of the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the prior art in which the air intake pipe is installed on the top of the frame at the front end of the engine compartment;

[0033] Figure 2 It is a schematic diagram of a case where the air intake pipe cannot be installed normally after the frame at the front end of the engine compartment is lifted in the prior art;

[0034] Figure 3 A schematic diagram of an engine intake pipe provided in Example 1 of the utility model;

[0035] Figure 4 A schematic diagram of an engine air intake pipe provided in Embodiment 1 of the utility model when it is installed on a vehicle body frame along a second installation direction;

[0036] Figure 5 A three-dimensional schematic diagram of an engine intake pipe provided in Example 1 of the utility model;

[0037] Figure 6 for Figure 5 A partial enlarged view of the mounting protrusion in the middle circular frame;

[0038] Figure 7 for Figure 6 A schematic diagram of the structure of the mounting protrusion and the first fixing member and the second fixing member;

[0039] Figure 8 A schematic diagram of a first arc-shaped transition portion and a second arc-shaped transition portion of an engine intake pipe provided in Example 1 of the utility model;

[0040] Fig. 9The arrangement method of the sound insulation cotton of the engine intake pipe provided in Example 1 of the utility model;

[0041] Fig.10 Another arrangement method of the sound insulation cotton of the engine intake pipe provided in Example 1 of the utility model;

[0042] Fig.11 A schematic diagram of the structure of an engine intake pipe provided in Example 2 of the utility model;

[0043] Fig.12 This is a schematic structural diagram of the engine intake assembly provided in Example 3 of the utility model.

[0044] Description of reference numerals:

[0045] 100. Engine intake pipe;

[0046] 110, first mounting protrusion;

[0047] 111. first mounting hole; 112. first fixing member;

[0048] 120, second mounting protrusion;

[0049] 121. second mounting hole; 122. second fixing member;

[0050] 130, air intake section;

[0051] 131, first arc-shaped transition portion;

[0052] 140, outlet section;

[0053] 141, second arc-shaped transition portion;

[0054] 150. Sound insulation cotton;

[0055] 200, body frame;

[0056] 300, intake resonator; 400, air filter; 500, exhaust pipe;

[0057] A, extension direction of the vehicle body frame; B, first installation direction; C, second installation direction; R1, turning radius of the first arc-shaped transition portion; R2, turning radius of the second arc-shaped transition portion; D, inner diameter of the tube at the junction of the air inlet section and the air outlet section. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0059] See first Figure 1 and Figure 2The problems existing in the prior art are briefly described. Figure 1 It is one of the specific installation methods of the intake pipe in the prior art. The top of the intake pipe 1 has a mounting hole, which is connected to the upper end of the frame 4 at the front end of the engine compartment through the mounting hole and the plastic buckle 3. However, in different models or different projects, the front end of the engine compartment or the body frame may change, for example Figure 2 In another vehicle model, after the front frame is raised, the installation height of the intake pipe remains unchanged, so the installation position relative to the frame changes, and it cannot be installed using the traditional installation method, such as Figure 1 and Figure 2 In the example given in the figure, the installation is performed through the top of the protrusion on the intake pipe. After the frame is raised, the height of the intake pipe remains unchanged, and the original installation position and the protrusion cannot be adapted for installation. Therefore, the mold must be redesigned or the mold must be redesigned, resulting in unnecessary waste of resources.

[0060] Example 1

[0061] In order to solve the above technical problems, the implementation method of this embodiment discloses an engine intake pipe of a vehicle, see Figure 3 and Figure 4 One end of the engine intake pipe 100 is fixed to the vehicle body frame 200 through an intake pipe mounting portion, and the intake pipe mounting portion includes a plurality of mounting protrusions protruding from at least one end surface of the engine intake pipe 100 .

[0062] See also Figure 3 The plurality of mounting protrusions include at least one first mounting protrusion 110 and at least one second mounting protrusion 120 arranged at intervals along the extending direction of the body frame 200. When viewed along the extending direction of the body frame 200, the angle between the first mounting protrusion 110 and the first mounting direction of the body frame 200 and the second mounting protrusion 120 and the second mounting direction of the body frame 200 is between 45° and 180°. The extending direction of the body frame 200 is as shown in FIG. Figure 4 As shown in the A direction, the first installation direction is Figure 4 As shown in the B direction, the second installation direction is as follows Figure 4 As shown in the direction of C.

[0063] It can be understood that the intake pipe mounting portion includes but is not limited to a mounting protrusion, for example, it can also be a bracket arranged to protrude from an end face of one side of the engine intake pipe 100, the bracket can be connected to the vehicle body frame 200 along a first mounting direction and a second mounting direction, respectively, and the intake pipe mounting portion can also be a flange structure arranged on an end face of one side of the engine intake pipe 100, and the flange structure can also satisfy the requirement of installing the intake pipe on the vehicle body frame 200 along the first mounting direction and the second mounting direction, respectively.

[0064] Next, the first mounting protrusion 110 and the second mounting protrusion 120 are described respectively. In the present embodiment, the first mounting protrusion 110 and the second mounting protrusion 120 are preferably provided in two or more numbers, for example, 2, 3, 4 or other numbers are provided for each. Provision of more than two can improve the installation stability of the engine intake pipe 100.

[0065] Further, see Figure 4 The first mounting direction of the first mounting protrusion 110 relative to the vehicle body frame 200 and the second mounting direction of the second mounting protrusion 120 relative to the vehicle body frame 200 are described. Figure 4 For example, the first installation direction is Figure 4 As shown in the direction indicated by arrow B, the second installation direction is Figure 4 As shown in the direction indicated by the arrow C, the angle between the first installation direction and the second installation direction can be any value between 45° and 180°, for example, the angle can be 45°, 90°, 120°, 180°, etc.

[0066] See first Figure 4 Taking the example of an angle of 90° between the first installation direction and the second installation direction, the first installation protrusion 110 and the second installation protrusion 120 are arranged on the end surface of the same side. For example, when the first installation direction B is a vertical direction and the second installation direction C is a horizontal direction, the engine intake pipe 100 can be adjusted and installed in the horizontal direction and the vertical direction. At this time, the angle between the first installation direction and the second installation direction is 90°, and the installation position of the engine intake pipe 100 can be flexibly adjusted and designed according to actual needs.

[0067] Next, the angle between the first installation direction and the second installation direction is 45° as an example. For example, when the installation position of the same intake pipe in two different projects does not change much, but the installation angle needs to be adjusted, the angle between the first installation direction and the second installation direction can be set to 45° for installation and adjustment. Specifically, for example, the first installation protrusion 110 is arranged on a side end face of the engine intake pipe 100 and is provided with an inclined installation surface, the second installation protrusion 120 is arranged on an adjacent side end face or the same side end face, and the second installation protrusion 120 is also provided with an inclined installation surface, and the installation directions of the two installation surfaces face different directions, so that the angle between the first installation direction and the second installation direction is 45°, and it can be selectively connected to the vehicle body frame 200 according to needs, and the angle between the first installation direction and the second installation direction can also be adjusted to any value within 45° to 90° according to needs.

[0068] Furthermore, the angle between the first installation direction and the second installation direction is 180° as an example for a brief description. Under this setting method, the first installation protrusion 110 and the second installation protrusion 120 can be respectively set on the two side end surfaces of the intake pipe close to the vehicle body frame 200. At this time, the angle between the first installation direction and the second installation direction corresponding to the first installation protrusion 110 and the second installation protrusion 120 is 180°.

[0069] Therefore, a first mounting protrusion 110 and a second mounting protrusion 120 are provided on the engine intake pipe 100, and the first mounting protrusion 110 and the second mounting protrusion 120 can be respectively used as a detachable connecting component and connected to the vehicle body frame 200. Specifically, the first mounting protrusion 110 is installed along a first mounting direction when connected relative to the vehicle body frame 200, and the second mounting protrusion 120 is installed along a second mounting direction when connected relative to the vehicle body frame 200. That is, the engine intake pipe 100 can be installed on the vehicle body frame 200 in at least two directions. When the engine intake pipe 100 is used on different platforms or vehicle models, it can be installed and used according to needs through the first mounting protrusion 110 or the second mounting protrusion 120, without the need to redesign the mold or readjust the mounting structure of the vehicle body frame 200 or the engine intake pipe 100. For example, for different vehicle models, after the vehicle body frame 200 is lifted, it can be installed and fixed through the first mounting protrusion 110 or the second mounting protrusion 120, which has the advantages of higher applicability, more convenient installation, and cost reduction and efficiency improvement. In addition, the included angle between the first installation direction and the second installation direction is between 45° and 180°, and can be flexibly adjusted for different vehicle models, different installation platforms, and different installation requirements.

[0070] Furthermore, for example Figure 5 and Figure 6 As shown, the first mounting protrusion 110 and the second mounting protrusion 120 can also be integrated on one of the protrusion structures. For details, see Figure 6 , a first mounting surface and a second mounting surface are provided on one of the mounting protrusions of the engine intake pipe 100, that is, one mounting protrusion can be used as a first mounting protrusion 110 and a second mounting protrusion 120 in different mounting modes, for example Figure 5 The second mounting protrusion 120 circled in the middle can be used as the first mounting protrusion 110 and the second mounting protrusion 120. The first mounting surface is the top end surface of the mounting protrusion, and the second mounting surface is the side end surface of the mounting protrusion. In this case, the same mounting protrusion can be installed from the top end surface along the first mounting direction, and can also be installed from the side end surface along the second mounting direction. The first mounting direction is as shown in FIG. Figure 6 As shown by arrow B, the first installation direction is Figure 6As shown by the middle arrow C, the same mounting protrusion can be used to respectively satisfy the installation along the first mounting direction and the second mounting direction.

[0071] The implementation of this embodiment further discloses an engine intake pipe of a vehicle, wherein at least one first mounting protrusion 110 and at least one second mounting protrusion 120 are protrudingly provided on the same side end surface of the engine intake pipe 100 .

[0072] The first mounting protrusion 110 is disposed at the middle of one end surface, and the first mounting direction is perpendicular to the extension direction of the body frame 200. In addition, the second mounting protrusions 120 are disposed at both ends of one end surface, and the second mounting direction is also perpendicular to the extension direction of the body frame 200 and orthogonal to the first mounting direction.

[0073] It should be noted that, in this embodiment, see Figure 4 and Figure 7 It is understood that the first installation direction B is actually the installation direction of the fastener of the first installation protrusion 110 and the body frame 200, and the second installation direction C is actually the installation direction of the fastener of the second installation protrusion 120 and the body frame 200, that is, the first installation direction B and the second installation direction C are the fixing or installation directions when finally installed on the body frame 200.

[0074] For details, please refer to Figure 3 and Figure 5 The first mounting protrusion 110 and the second mounting protrusion 120 are both provided with two and are protruded from the upper end surface of the engine intake pipe 100, wherein the first mounting direction is perpendicular to the extending direction of the vehicle body frame 200. For further information, see Figure 4 The first installation direction B is the vertical direction, and the second installation direction C is the horizontal direction. It can be understood that in this embodiment, the first installation direction is the same as the height direction of the vehicle, the second installation direction is the same as the length direction of the vehicle, and the extension direction of the body frame 200 is the same as the width direction of the body.

[0075] More preferably, see Figure 3 The first mounting protrusions 110 are arranged in pairs on the same side end surface of the engine intake pipe 100, arranged at equal intervals along the extending direction of the vehicle body frame 200, and symmetrically arranged relative to the center line of one side end surface of the engine intake pipe 100, the center line being as shown in FIG. Figure 3 It is understood that, in this arrangement, the first mounting protrusion 110 is optimally arranged.

[0076] See Figure 3 and Figure 5 In the illustrated embodiment, a pair of first mounting protrusions 110 are provided, and those skilled in the art may provide two pairs, three pairs or other numbers according to requirements, which is not specifically limited in the present embodiment.

[0077] Next, the process of installing or applying the engine intake pipe 100 on different vehicle models or different platforms when at least one first mounting protrusion 110 and at least one second mounting protrusion 120 are provided on the same side end surface of the engine intake pipe 100 is described:

[0078] For example, in the first application platform or vehicle model, the height of the vehicle body frame 200 is relatively low. In this case, the first mounting protrusion 110 is detachably mounted on the vehicle body frame 200 along the first mounting direction. Specifically, the top of the first mounting protrusion 110 is connected to the top of the vehicle body frame 200. In this case, the first mounting direction is a vertical direction. The first mounting protrusion 110 and the vehicle body frame 200 can be detachably connected by a snap connection, a threaded fastener, etc. In another application platform or vehicle model, such as Figure 4 As shown in FIG. 1 , the height of the body frame 200 is increased, and the top of the body frame 200 is raised. At this time, the original first mounting protrusion 110 cannot be connected to the body frame 200, and it cannot be installed along the first mounting direction. Therefore, the second mounting protrusion 120 is used to perform a detachable installation along the second mounting direction C with the body frame 200 (such as Figure 4 In the embodiment of the present invention, the first mounting protrusion 110 is connected to the body frame 200 near the side of the body frame 200, and the second mounting direction is the horizontal direction. The first mounting protrusion 110 and the body frame 200 can also be detachably connected by a snap connection, a threaded fastener, etc. In summary, by providing the first mounting protrusion 110 and the second mounting protrusion 120, the engine intake pipe 100 can be conveniently installed on two different vehicle models or platforms for use, and there is no need to redesign the mold or adjust the mounting structure.

[0079] Through this structural design, at least one first mounting protrusion 110 and at least one second mounting protrusion 120 are protruded from the same side end surface of the engine intake pipe 100, and the first mounting direction and the second mounting direction are orthogonal. The advantage of this arrangement is that the first mounting protrusion 110 and the second mounting protrusion 120 are arranged on the same side, which is more convenient to manufacture and install, and the first mounting protrusion 110 or the second mounting protrusion 120 can be selected to install the engine intake pipe 100 according to the change of the vehicle body frame 200 or the installation position.

[0080] Next, refer to Figure 6 and Figure 7 To explain how the first mounting protrusion 110 is connected to the vehicle body frame 200, it should be noted that: Figure 6 and Figure 7 The mounting protrusion shown is a schematic diagram of a first mounting protrusion and a second mounting protrusion integrated on the same protrusion (having two mounting surfaces):

[0081] When viewed along the extension direction of the vehicle body frame 200, the end of the first mounting protrusion 110 away from the engine intake pipe 100 abuts against and is detachably connected to the vehicle body frame 200. The end of the first mounting protrusion 110 connected to the vehicle body frame 200 is provided with a first mounting hole 111, and the first mounting hole 111 is matched with a first fixing member 112 detachably connected to the vehicle body frame 200, and the first fixing member 112 can be adapted to the first mounting hole 111 along the first mounting direction.

[0082] Specifically, the first mounting hole 111 may be a threaded hole, and the first fixing member 112 may be a threaded member, or the first mounting hole 111 may be a buckle hole, and the first fixing member 112 may be a buckle. Those skilled in the art may also set other detachable connection structures according to requirements. With this structural setting, the first mounting protrusion 110 is provided with the first mounting hole 111, and is detachably fixed to the vehicle body frame 200 through the first fixing member 112, which makes installation simpler and more convenient.

[0083] Next, refer to Figure 6 and Figure 7 How the first mounting protrusion 110 is connected to the vehicle body frame 200 is described below:

[0084] When viewed along the extension direction of the vehicle body frame 200, the end of the second mounting protrusion 120 away from the engine intake pipe 100 is detachably connected to the vehicle body frame 200. The end of the second mounting protrusion 120 connected to the vehicle body frame 200 is provided with a second mounting hole 121, and the second mounting hole 121 is matched with a second fixing member 122 detachably connected to the vehicle body frame 200, and the second fixing member 122 can be adapted to the second mounting hole 121 along the second mounting direction.

[0085] Specifically, the second mounting hole 121 may be a threaded hole, and the second fixing member 122 may be a threaded member, or the second mounting hole 121 may be a buckle hole, and the second fixing member 122 may be a buckle. Those skilled in the art may also set other detachable connection structures according to requirements. With this structural setting, the second mounting protrusion 120 is provided with the second mounting hole 121, and is detachably fixed to the vehicle body frame 200 through the second fixing member 122, and installation and removal are also simple and convenient.

[0086] The embodiment of the present invention also discloses an engine intake pipe of a vehicle, see Figure 8 The engine air intake pipe 100 includes an air intake section 130 and an air outlet section 140 connected end to end. In the extension direction of the vehicle body frame 200, the cross-sectional area of ​​the air intake at the end of the air intake section 130 is larger than the cross-sectional area of ​​the air outlet at the end of the air outlet section 140. This method is more conducive to air intake of the air intake pipe.

[0087] See also Figure 8 When viewed along the extension direction of the vehicle body frame 200, the portion of the air intake section 130 close to the air intake port and the pipeline at the junction of the air intake section 130 and the air outlet section 140 are both arc-shaped pipelines; and, the inner side of the portion of the air intake section 130 close to the air intake port has a first arc-shaped transition portion 131 with an increased radius, and the outer side of the junction of the air intake section 130 and the air outlet section 140 has a second arc-shaped transition portion 141 with an increased radius. It should be noted that the turning radius of the second arc-shaped transition portion 141 is greater than the turning radius of the first arc-shaped transition portion 131.

[0088] Further preferably, the turning radius of the first arc-shaped transition portion 131 is any value within 15 to 25 mm, for example, 15 mm, 18 mm, 20 mm, 25 mm, etc., according to requirements, the turning radius of the second arc-shaped transition portion 141 is any value within 23 to 30 mm, for example, 23 mm, 25 mm, 28 mm, 60 mm, etc., according to requirements, and the inner diameter of the tube at the joint of the air inlet section 130 and the air outlet section 140 is any value within 62 to 65 mm, for example, 62 mm, 63 mm, 64 mm, 65 mm, etc., according to requirements. The turning radius of the first arc-shaped transition portion 131 is as follows: Figure 8 As shown in R1, the turning radius of the second arc-shaped transition portion 141 is as follows: Figure 8 As shown in R2, the inner diameter of the tube at the joint of the air inlet section 130 and the air outlet section 140 is as follows: Figure 8 As shown in D.

[0089] Experimental studies have shown that the turning radius of the first arc-shaped transition portion 131 of the intake section 130 close to the air inlet and the second arc-shaped transition portion 141 at the junction of the intake section 130 and the outlet section 140 are important factors affecting the flow rate and pressure in the intake pipe. Experiments and optimizations using simulation methods have shown that increasing the turning radius of the first arc-shaped transition portion 131 and the second arc-shaped transition portion 141 can effectively reduce the flow rate in the local area and reduce the pressure drop in the intake pipe.

[0090] For example, in an engine intake pipe 100 disclosed in the present application, see Figure 8, the direction and turning points of the intake pipe are optimized, the turning radius of the first arc-shaped transition portion 131 is changed from 5mm to 20mm, and the turning radius of the second arc-shaped transition portion 141 is changed from 20mm to 25mm. At the same time, the inner diameter of the pipe at the joint of the intake section 130 and the outlet section 140 is increased from 60mm to 63mm. When the simulation experiment is carried out after optimization, the flow velocity at the corresponding part is significantly reduced, and the pressure drop of the intake pipe is also significantly reduced. The pressure drop at the outlet of the intake pipe is reduced from 1.25kPa to 1kPa, and the pressure drop of the entire system is reduced from 2.35kPa to 2.2kPa. The optimized engine intake pipe 100 can meet the pressure drop requirements of two different engines, so the engine can be used on two different platforms or engines, and there is no need to optimize or adjust the intake pipe.

[0091] By adopting the above technical solution, the radius of the first arc-shaped transition portion 131 and the second arc-shaped transition portion 141 of the pipeline at the junction of the intake section 130 and the outlet section 140 is increased, which can effectively reduce the flow velocity, thereby reducing the pipe pressure of the intake pipe, meeting the engine's requirements for the intake pipe pressure drop, and can be directly applied on two different platforms.

[0092] The embodiment of the present invention also discloses an engine air intake pipe 100, which includes an air intake section 130 and an air outlet section 140 connected end to end. A plurality of sound insulation cottons 150 are also provided on the side wall of the air intake section 130 and the wall of the joint between the air intake section 130 and the air outlet section 140.

[0093] For details, see Fig. 9 and Fig.10 As shown, in the present embodiment, three pieces of sound insulation cotton 150 are preferably provided, and the three pieces of sound insulation cotton 150 are respectively arranged on both sides of the air intake end of the engine intake pipe 100 and on one side of the air outlet pipe 500, mainly for sound insulation or noise absorption at the parts generating larger noise, thereby being able to effectively reduce the noise of the engine intake pipe 100 and improve the air intake noise. In particular, after adding the sound-absorbing cotton, the high-frequency noise of the intake pipe is obviously absorbed and reduced, the air intake noise is greatly improved, and the comprehensive NVH performance of the intake pipe is improved.

[0094] Example 2

[0095] The engine intake pipe of the vehicle disclosed in this embodiment is different from that in Embodiment 1 only in the installation positions of the first mounting protrusion 110 and the second mounting protrusion 120. Other structures or components are the same as those in Embodiment 1. Specifically, in this embodiment, at least one first mounting protrusion 110 and at least one second mounting protrusion 120 are respectively protruded from the two side end surfaces of the engine intake pipe 100 close to the vehicle body frame 200. The specific number of the first mounting protrusion 110 and the second mounting protrusion 120 can be selected by those skilled in the art according to actual needs, and this embodiment does not make any specific limitation on this.

[0096] The first mounting protrusions 110 are arranged at equal intervals on one end surface along the extension direction of the body frame 200, and the first mounting direction is perpendicular to the extension direction of the body frame 200. In addition, the second mounting protrusions 120 are arranged at both ends of one end surface, and the second mounting direction is also perpendicular to the extension direction of the body frame 200 and opposite to the first mounting direction.

[0097] See for example Fig.11 There are three first mounting protrusions 110, which are arranged at equal intervals on the upper end surface along the extension direction of the body frame 200. There are three second mounting protrusions 120, which are arranged at equal intervals on the lower end surface along the extension direction of the body frame 200. In this arrangement, the angle between the first mounting direction and the second mounting direction is 180°.

[0098] With this arrangement, at least one first mounting protrusion 110 and at least one second mounting protrusion 120 are respectively arranged on both side end surfaces, which makes installation more convenient.

[0099] Example 3

[0100] The utility model also discloses an engine air intake assembly, including an engine air intake pipe of a vehicle according to any one of Embodiments 1 and 2, see Fig.12 , also includes an intake resonator 300, an air filter 400 and an outlet pipe 500. The intake resonator 300 is arranged on one side of the air filter 400, the outlet end of the engine intake pipe 100 is connected to the air inlet of the air filter 400, the outlet end of the air filter 400 is connected to the outlet pipe 500, the outlet pipe 500 is connected to the engine throttle, and the outlet pipe 500 includes two or more detachable and replaceable ones so as to be adaptively applied to different vehicle models or different models.

[0101] In summary, the present application discloses an engine intake pipe of a vehicle, wherein one side end of the engine intake pipe 100 is fixed to a vehicle body frame 200 via an intake pipe mounting portion, and the intake pipe mounting portion includes a plurality of mounting protrusions protruding from at least one side end surface of the engine intake pipe 100, and the plurality of mounting protrusions include at least one first mounting protrusion 110 and at least one second mounting protrusion 120 arranged at intervals along an extension direction of the vehicle body frame 200. The first mounting protrusion 110 is installed along the first mounting direction when connected to the vehicle body frame 200, and the second mounting protrusion 120 is installed along the second mounting direction when connected to the vehicle body frame 200, that is, the engine intake pipe 100 can be installed on the vehicle body frame 200 in at least two directions, and can be installed and used through the first mounting protrusion 110 or the second mounting protrusion 120 as required, without the need to redesign the mold, and without the need to readjust the mounting structure of the vehicle body frame 200 or the engine intake pipe 100, which has the advantages of higher applicability, more convenient installation, and cost reduction and efficiency improvement, and by adjusting and increasing the inner radius of the intake section 130 and the outlet section 140, the flow velocity is reduced and the specified pressure drop requirement is met, and a plurality of sound insulation cottons 150 are provided to improve the intake noise and improve the NVH comprehensive performance of the intake pipe.

[0102] Next, the specific application and use of the engine intake pipe of the vehicle disclosed in this application are described:

[0103] For example, in the first application platform or vehicle model, the height of the vehicle body frame 200 is relatively low, and the first mounting protrusion 110 is detachably mounted on the vehicle body frame 200 along the first mounting direction, for example, the top end surface of the first mounting protrusion 110 is connected to the top of the vehicle body frame 200. At this time, the first mounting direction is a vertical direction, and the first mounting protrusion 110 and the vehicle body frame 200 can be detachably connected by a snap connection, a threaded fastener, etc. When applied to another application platform or vehicle model, the height of the vehicle body frame 200 is increased as shown in FIG. Figure 4 As shown, the top of the body frame 200 is raised. At this time, the original first mounting protrusion 110 cannot be connected to the body frame 200, so it needs to be installed through the second mounting protrusion 120. The second mounting protrusion 120 is detachably installed with the body frame 200 along the second mounting direction. Specifically, the first mounting protrusion 110 is connected to the body frame 200 near the side of the body frame 200. At this time, the second mounting direction is horizontal. In this installation method, although the height of the body frame 200 is raised, the relative installation position of the engine intake pipe 100 does not change, only the installation direction is changed. The first mounting protrusion 110 and the body frame 200 can also be detachably connected by snap-on connection, threaded fasteners, etc. And when the height of the engine intake pipe 100 needs to be adjusted according to actual needs, it can also be adjusted and installed, and it should be noted that, Figure 6 and Figure 7 A preferred embodiment in which the first mounting protrusion 110 and the second mounting protrusion 120 are integrated into one body is illustrated, that is, one mounting protrusion can be fixedly installed along two installation directions.

[0104] It should be noted that, in addition to the implementation methods of the utility model described in the above-mentioned specific specific embodiments, those skilled in the art can easily understand other advantages and functions of the utility model from the contents disclosed in this specification. Although the description of the utility model will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation method. On the contrary, the purpose of introducing the utility model in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the utility model. In order to provide an in-depth understanding of the utility model, the above description contains many specific details, and the utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0105] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0106] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0107] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0108] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0109] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An engine intake pipe of a vehicle, Features: One end of the engine intake pipe is fixed to the vehicle body frame through an intake pipe mounting portion, and the intake pipe mounting portion includes a plurality of mounting protrusions protruding from at least one end surface of the engine intake pipe; The multiple mounting protrusions include at least one first mounting protrusion and at least one second mounting protrusion arranged at intervals along the extension direction of the body frame; when viewed along the extension direction of the body frame, the angle between the first mounting protrusion relative to the first mounting direction of the body frame and the second mounting protrusion relative to the second mounting direction of the body frame is between 45° and 180°.

2. The engine intake pipe of a vehicle according to claim 1, It is characterized in that At least one of the first mounting protrusions and at least one of the second mounting protrusions are protruding from the same side end surface of the engine intake pipe; wherein The first mounting protrusion is disposed at the middle of the one side end surface, and the first mounting direction is perpendicular to the extension direction of the vehicle body frame; and The second mounting protrusions are arranged at two ends of the one side end surface, and the second mounting direction is also perpendicular to the extending direction of the vehicle body frame and orthogonal to the first mounting direction.

3. The engine intake pipe of a vehicle as claimed in claim 2, It is characterized in that in The first mounting protrusions are arranged in pairs on the same side end surface of the engine intake pipe, arranged at equal intervals along the extension direction of the vehicle body frame, and symmetrically arranged relative to the center line of the side end surface of the engine intake pipe.

4. The engine intake pipe of a vehicle as claimed in claim 1, It is characterized in that At least one of the first mounting protrusions and at least one of the second mounting protrusions are respectively protruded from both side end surfaces of the engine intake pipe close to the vehicle body frame; wherein The first mounting protrusions are arranged on the one side end surface at equal intervals along the extension direction of the body frame, and the first mounting direction is perpendicular to the extension direction of the body frame; and The second mounting protrusions are arranged at two ends of the one side end surface, and the second mounting direction is also perpendicular to the extending direction of the vehicle body frame and opposite to the first mounting direction.

5. The engine intake pipe of a vehicle according to any one of claims 1 to 4, It is characterized in that When viewed along the extension direction of the vehicle body frame, the end of the first mounting protrusion away from the engine air intake pipe abuts against the vehicle body frame and is detachably connected; and A first mounting hole is provided at the end of the first mounting protrusion connected to the vehicle body frame. The first mounting hole is matched with a first fixing member detachably connected to the vehicle body frame. The first fixing member can be adapted into the first mounting hole along the first mounting direction.

6. The engine intake pipe of a vehicle as claimed in claim 5, It is characterized in that When viewed along the extension direction of the vehicle body frame, the end of the second mounting protrusion away from the engine air intake pipe is detachably connected to the vehicle body frame; and A second mounting hole is provided at the end of the second mounting protrusion connected to the vehicle body frame. The second mounting hole is matched with a second fixing member detachably connected to the vehicle body frame. The second fixing member can be adapted into the second mounting hole along the second mounting direction.

7. The engine intake pipe of a vehicle as claimed in claim 6, It is characterized in that The engine air intake pipe comprises an air intake section and an air outlet section connected end to end; wherein In the extension direction of the vehicle body frame, the cross-sectional area of ​​the air inlet at the end of the air inlet section is larger than the cross-sectional area of ​​the air outlet at the end of the air outlet section; and When viewed along the extension direction of the vehicle body frame, the portion of the air intake section close to the air intake port and the pipelines at the junction of the air intake section and the air outlet section are both arc-shaped pipelines; and the inner side of the portion of the air intake section close to the air intake port has a first arc-shaped transition portion with an increased radius, and the outer side of the junction of the air intake section and the air outlet section has a second arc-shaped transition portion with an increased radius.

8. The engine intake pipe of a vehicle as claimed in claim 7, It is characterized in that The turning radius of the first arc-shaped transition portion is 15-25 mm, the turning radius of the second arc-shaped transition portion is 23-30 mm, and the inner diameter of the tube at the joint of the air inlet section and the air outlet section is 62-65 mm.

9. The engine intake pipe of a vehicle as claimed in claim 7, It is characterized in that A plurality of sound insulation cottons are also provided on the side wall portion of the air inlet section and the wall portion of the joint between the air inlet section and the air outlet section.

10. An engine air intake assembly, It is characterized in that An engine intake pipe of a vehicle comprising any one of claims 1 to 9, further comprising an intake resonator, an air filter and an outlet pipe, wherein the intake resonator is arranged on one side of the air filter, the outlet end of the engine intake pipe is connected to the air inlet of the air filter, the outlet end of the air filter is connected to the outlet pipe, and the outlet pipe is connected to an engine throttle.

Images