Vehicle and engine thereof

Abstract

The utility model discloses a vehicle and an engine thereof. The engine comprises a cylinder body and an air inlet assembly. The outer side wall of the cylinder body is provided with an air inlet binding face, and the air inlet binding face is provided with an air inlet hole communicating with the interior of the cylinder body. The air inlet assembly comprises an air inlet pipe and a sealing piece. One end of the air inlet pipe is connected with the cylinder body and communicates with the air inlet hole. The end wall of the end, close to the cylinder body, of the air inlet pipe is defined as a mounting face, an opening, located in the mounting face, of the air inlet pipe is defined as an air outlet, a supporting ring is arranged on the mounting face, the air outlet is located in the area defined by the supporting ring, and the sealing piece is arranged between the mounting face and the air inlet attaching face and arranged on the supporting ring in a sleeving mode. Through the arrangement, the airflow flowing stability of the engine is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle and an engine thereof. BACKGROUND

[0002] Vehicles are generally divided into three types according to power forms, namely, fuel vehicles, hybrid vehicles and pure electric vehicles. The fuel vehicles and the hybrid vehicles are both provided with engines for providing power.

[0003] At present, the engine is generally provided with a cylinder body, an air inlet pipe and a throttle valve. The cylinder body is provided with an air inlet hole. One end of the air inlet pipe is connected with the cylinder body, so that the air inlet pipe is in communication with the air inlet hole. The other end of the air inlet pipe is connected with the throttle valve. The gas flows into the cylinder body through the throttle valve and the air inlet pipe in sequence, so as to provide oxygen required for fuel combustion in the cylinder body. A sealing gasket or a sealing glue is generally arranged between the air inlet pipe and the cylinder body, so as to improve the sealing performance of the connection between the air inlet pipe and the cylinder body. However, after the air inlet pipe is connected with the cylinder body, the sealing gasket or the sealing glue located between the air inlet pipe and the cylinder body is deformed under pressure and invades into the air inlet pipe or the air inlet hole of the cylinder body, which hinders the flow of the gas in the cylinder body and makes the flow direction of the gas unstable, so that the fuel in the engine is difficult to be fully combusted. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a vehicle and an engine. The gas flow of the engine of the vehicle is more stable.

[0005] An engine is provided in the embodiments of the present application. The engine comprises a cylinder body and an air inlet assembly. The outer side wall of the cylinder body is provided with an air inlet abutting surface. The air inlet abutting surface is provided with an air inlet hole in communication with the inside of the cylinder body. The air inlet assembly comprises an air inlet pipe and a sealing member. One end of the air inlet pipe is connected with the cylinder body and is in communication with the air inlet hole. The end wall of the air inlet pipe close to the cylinder body is defined as a mounting surface. The opening of the air inlet pipe located on the mounting surface is defined as an air outlet. The mounting surface is provided with a supporting ring. The air outlet is located inside the area surrounded by the supporting ring. The sealing member is elastic. The sealing member is arranged between the mounting surface and the air inlet abutting surface and is sleeved on the supporting ring. The end wall of the sealing member away from the mounting surface along the normal direction of the mounting surface is defined as a sealing abutting surface. The end wall of the supporting ring away from the mounting surface along the normal direction of the mounting surface is defined as a supporting surface. The distance between the sealing abutting surface and the mounting surface along the normal direction of the mounting surface is L1. The distance between the supporting surface and the mounting surface along the normal direction of the mounting surface is L2. L1 is greater than L2.

[0006] In some embodiments of the present application, the difference between L2 and L1 is 0.2mm to 0.5mm.

[0007] In some embodiments of the present application, the mounting surface is provided with a limiting protrusion. The limiting protrusion can abut against the outer peripheral wall of the sealing member.

[0008] In some embodiments of the present application, an end wall of the sealing member away from the mounting surface along the normal direction of the mounting surface is defined as a sealing fitting surface, an end wall of the limiting protrusion away from the mounting surface along the normal direction of the mounting surface is defined as a limiting surface, a distance between the sealing fitting surface and the mounting surface along the normal direction of the mounting surface is L1, a distance between the limiting surface and the mounting surface along the normal direction of the mounting surface is L3, and L1 is greater than L3.

[0009] In some embodiments of the present application, an end wall of the supporting ring away from the mounting surface along the normal direction of the mounting surface is defined as a supporting surface, a distance between the supporting surface and the mounting surface along the normal direction of the mounting surface is L2, L1 is greater than L2, and L3 is less than L2.

[0010] In some embodiments of the present application, a plurality of limiting protrusions are arranged along the circumferential direction of the supporting ring.

[0011] In some embodiments of the present application, one of the outer circumferential wall of the supporting ring and the inner circumferential wall of the sealing member is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is capable of being inserted into the positioning groove.

[0012] In some embodiments of the present application, the sealing member is a rubber pad, and the thickness of the sealing member is 2 mm to 5 mm.

[0013] In some embodiments of the present application, the thickness of the sealing member is 3 mm to 4 mm.

[0014] The embodiments of the present application also disclose a vehicle, which comprises a vehicle frame, a vehicle body cover, a walking system and a power system; the vehicle body cover is at least partially covered on the vehicle frame; the walking system is at least partially located below the vehicle frame and at least partially connected to the vehicle frame; and the power system comprises the engine provided in any of the above embodiments, the cylinder body of the engine is at least partially supported by the vehicle frame, and the engine is drivingly connected to the walking system.

[0015] The sealing member of the engine applied to the vehicle is arranged between the mounting surface and the air inlet fitting surface and sleeved on the supporting ring, the outer circumferential wall of the supporting ring can constrain the position of the sealing member relative to the mounting surface, and the supporting ring can stop the part of the sealing member deformed towards the inside of the air inlet pipe or the air inlet hole, so that the airflow channel between the air inlet pipe and the cylinder body is kept unobstructed, and the gas can flow smoothly into the cylinder body, and the stability of the airflow is higher. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of a vehicle according to an embodiment of the present application;

[0017] Figure 2 FIG. 2 is a partial structural schematic diagram of an engine according to an embodiment of the present application;

[0018] Figure 3This is a partially exploded schematic diagram of the air intake assembly and the docking protrusion provided in one embodiment of this application;

[0019] Figure 4 yes Figure 3 A partially exploded diagram of the intake components provided in the image;

[0020] Figure 5 yes Figure 3 A partial cross-sectional view of the intake assembly along line AA provided in the diagram;

[0021] Figure 6 yes Figure 5 Enlarged view at point B. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0024] The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0025] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Reference Figure 1 and Figure 2 The present application discloses a vehicle 100, including a frame 11, a body panel 12, a running system 13 and a power system 14.

[0027] The body panel 12 at least partially covers and is connected to the frame 11 to form the body structure of the vehicle 100.

[0028] The walking system 13 includes a front wheel 131 located at the front end of the frame 11 and a rear wheel 132 located at the rear end of the frame 11. At least a portion of the front wheel 131 is located below the frame 11 and is at least partially connected to the frame 11. At least a portion of the rear wheel 132 is located below the frame 11 and is at least partially connected to the frame 11. It is understood that both the front wheel 131 and the rear wheel 132 are rotatably connected to the frame 11.

[0029] The power system 14 includes an engine 141, which includes a cylinder block 1411, an intake assembly 1412, and a crankshaft (not shown). The crankshaft is rotatably connected to the cylinder block 1411, and the intake assembly 1412 is connected to the cylinder block 1411. The intake assembly 1412 is used to deliver gas into the cylinder block 1411 to provide oxygen required for fuel combustion. The cylinder block 1411 of the engine 141 is at least partially supported by the frame 11, and the crankshaft is driven to the rear wheel 132 and / or the front wheel 131 of the vehicle 100.

[0030] In some embodiments, vehicle 100 is an all-terrain vehicle. In other embodiments, vehicle 100 may be a motorcycle or other type of vehicle 100.

[0031] Reference Figures 2 to 4 The outer wall of the cylinder body 1411 has a mating protrusion 1411e, which has an air intake contact surface 1411a. The air intake contact surface 1411a has an air intake hole 1411b that communicates with the interior of the cylinder body 1411. In some embodiments, the mating protrusion 1411e may be omitted, and the air intake contact surface 1411a is part of the outer wall of the cylinder body 1411.

[0032] The intake assembly 1412 includes an intake pipe 1412a and a seal 1412n. The end wall of the intake pipe 1412a near the cylinder block 1411 is defined as a mounting surface 1412b. The seal 1412n is disposed between the mounting surface 1412b and the intake contact surface 1411a. The intake pipe 1412a is fixedly connected to the cylinder block 1411, such that the mounting surface 1412b is sealed to the intake contact surface 1411a through the seal 1412n, and the interior of the intake pipe 1412a communicates with the intake port 1411b. In some embodiments, the intake assembly 1412 further includes a throttle valve 1412t, which is connected to the end of the intake pipe 1412a away from the cylinder block 1411. The throttle valve 1412t controls the flow rate of gas flowing into the intake pipe 1412a.

[0033] In some embodiments, both the intake contact surface 1411a and the mounting surface 1412b are planar. In other embodiments, the intake contact surface 1411a and / or the mounting surface 1412b may also be curved surfaces.

[0034] In some embodiments, the opening of the intake pipe 1412a located on the mounting surface 1412b is defined as an exhaust port 1412c, and the number of exhaust ports 1412c is one. In other embodiments, the number of exhaust ports 1412c is multiple, and the number of seals 1412n is one, with each exhaust port 1412c located inside the area enclosed by the seals 1412n. In still other embodiments, the number of exhaust ports 1412c is multiple, and the number of seals 1412n is multiple, with one exhaust port 1412c corresponding to one seal 1412n, and each exhaust port 1412c located within the area enclosed by the corresponding seal 1412n. It can be understood that when the number of exhaust ports 1412c is multiple, the corresponding intake pipe 1412a is an intake manifold.

[0035] In some embodiments, in addition to its sealing function, the seal 1412n can also be used to isolate at least part of the heat from the cylinder block 1411, thereby reducing the heat transferred from the cylinder block 1411 to the intake manifold 1412a. This makes the temperature of the gas in the intake manifold 1412a less affected by the temperature of the cylinder block 1411, thereby allowing for a higher oxygen concentration in the gas flowing into the cylinder block 1411. This enables the fuel in the cylinder block 1411 to burn more completely, thereby improving the thermal efficiency of the engine 141.

[0036] In some embodiments, the seal 1412n is a rubber gasket, and the thickness of the seal 1412n is D, where D is 2 mm to 5 mm. Alternatively, D can be 3 mm to 4 mm. Conventional rubber gaskets for sealing are typically 1.8 mm thick, resulting in poor heat insulation. By making the thickness of the seal 1412n greater than that of a conventional rubber gasket, the seal 1412n provides both sealing and good heat insulation. Exemplarily, the thickness D of the seal 1412n is 3 mm; alternatively, the thickness D of the seal 1412n can be any one of 2 mm, 2.5 mm, 3.3 mm, 4 mm, 4.5 mm, or 5 mm.

[0037] Alternatively, the seal 1412n may be made of one of the following materials: silicone rubber, fluororubber, butyl rubber, and polyurethane rubber. It is understood that the seal 1412n may also be made of other types of rubber. In some embodiments, the seal 1412n may be made of plastic or other materials with thermal insulation properties. It is understood that in some embodiments, the thickness of the seal 1412n may be adjusted according to its material or function, such that the thickness of the seal 1412n is less than 2 mm or greater than 5 mm.

[0038] Reference Figure 4 and Figure 5The mounting surface 1412b is provided with a support ring 1412d, and the air outlet 1412c is located inside the area enclosed by the support ring 1412d. It can be understood that the support ring 1412d surrounds the air outlet 1412c. The seal 1412n is basically annular and is fitted onto the support ring 1412d. For ease of description, the end wall of the seal 1412n, located away from the mounting surface 1412b along the normal direction, is defined as the sealing contact surface 1412p, and the end wall of the support ring 1412d, located away from the mounting surface 1412b along the normal direction, is defined as the support surface 1412e. Figure 4 The dashed line in the figure can be understood as the mounting surface 1412b, which is used to separate the support ring 1412d from the intake pipe 1412a.

[0039] Reference Figure 4 and Figure 6 In some embodiments, the distance between the sealing mating surface 1412p and the mounting surface 1412b along the normal direction of the mounting surface 1412b is L1, and the distance between the supporting surface 1412e and the mounting surface 1412b along the normal direction of the mounting surface 1412b is L2; ​​L1 is greater than L2. It can be understood that at the junction of the intake pipe 1412a and the cylinder block 1411 (see...) Figure 2 When in the separated state, the support ring 1412d is completely submerged inside the seal 1412n.

[0040] Understandably, the seal 1412n is elastic. When the intake pipe 1412a is connected to the cylinder block 1411, the mounting surface 1412b moves toward the intake contact surface 1411a. After the sealing contact surface 1412p abuts against the intake contact surface 1411a, the seal 1412n undergoes elastic deformation under force, causing the support surface 1412e to continue moving toward and contacting the intake contact surface 1411a; the seal 1412n undergoes elastic deformation. This design ensures that the end walls of the seal 1412n, along the normal direction of the mounting surface 1412b, are tightly fitted to the mounting surface 1412b and the intake contact surface 1411a, respectively. This improves the sealing performance of the connection between the intake pipe 1412a and the cylinder block 1411. Simultaneously, the support ring 1412d supports the inner circumferential wall of the seal 1412n, reducing the risk of the seal 1412n deforming and intruding into the exhaust port 1412c or the intake port 1411b (see...). Figure 3 This allows for the possibility of airflow within the intake pipe 1412a to the intake port 1411b remaining unobstructed, so that gas can flow quickly and fully into the intake port 1411b, resulting in higher stability of airflow.

[0041] In some embodiments, the difference between L2 and L1 is s, and the value of s ranges from 0.2 mm to 0.5 mm. For example, s can take any value among 0.2 mm, 0.25 mm, 0.3 mm, 0.36 mm, 0.4 mm, 0.43 mm, and 0.5 mm.

[0042] In some embodiments, L1 may be less than or equal to L2. Taking a support ring 1412d as a circular ring and an air intake hole 1411b as a circular hole as an example, the outer diameter of the support ring 1412d may be smaller than the inner diameter of the air intake hole 1411b. When installing the air intake pipe 1412a, the support ring 1412d may be inserted into the air intake hole 1411b, so that the sealing mating surface 1412p is tightly fitted with the air intake mating surface 1411a. In some embodiments, a clearance hole for the support ring 1412d to be inserted may be provided separately on the cylinder body 1411, so that the seal 1412n can seal the gap between the mounting surface 1412b and the air intake mating surface 1411a.

[0043] In some embodiments, one of the outer peripheral wall of the support ring 1412d and the inner peripheral wall of the seal 1412n is provided with a positioning protrusion 1412f, and the other of the outer peripheral wall of the support ring 1412d and the inner peripheral wall of the seal 1412n is provided with a positioning groove 1412q, wherein the positioning protrusion 1412f can be inserted into the positioning groove 1412q. Alternatively, the outer peripheral wall of the support ring 1412d is provided with a positioning protrusion 1412f, and the inner peripheral wall of the seal 1412n is provided with a positioning groove 1412q. The positioning protrusion 1412f cooperates with the positioning groove 1412q to position the installation state of the seal 1412n, thereby improving the accuracy of the installation of the seal 1412n.

[0044] In some embodiments, the mounting surface 1412b is provided with a limiting protrusion 1412g, which can abut against the outer peripheral wall of the seal 1412n. Optionally, the limiting protrusion 1412g is substantially block-shaped, and multiple limiting protrusions 1412g are sequentially spaced along the circumference of the support ring 1412d. During the connection of the intake pipe 1412a to the cylinder 1411, when the seal 1412n undergoes elastic deformation under force, the limiting protrusion 1412g can support the outer peripheral wall of the seal 1412n, thereby reducing the probability of the seal 1412n being crushed and damaged. At the same time, the gap between two adjacent limiting protrusions 1412g can accommodate the deformed parts of the seal 1412n, so as to facilitate the deformation of the seal 1412n. Figure 3 The dashed line in the middle is used to separate the limiting protrusion 1412g from the intake pipe 1412a.

[0045] In some embodiments, the limiting protrusion 1412g may be substantially annular and there may be only one such protrusion. The limiting protrusion 1412g is arranged around the support ring 1412d, and a space is reserved between the limiting protrusion 1412g and the support ring 1412d for deformation of the seal 1412n. In some other embodiments, the limiting protrusion 1412g may also be substantially block-shaped and there may be only one such protrusion, as long as the limiting protrusion 1412g can abut against the outer peripheral wall of the seal 1412n and provide support for the outer peripheral wall of the seal 1412n.

[0046] In some embodiments, the end wall of the limiting protrusion 1412g that is away from the mounting surface 1412b along the normal direction of the mounting surface 1412b is defined as the limiting surface 1412h. The distance between the limiting surface 1412h and the mounting surface 1412b along the normal direction of the mounting surface 1412b is L3, and L1 is greater than L3. By making L1 greater than L3, the seal 1412n can be deformed towards the limiting surface 1412h, thereby further facilitating the deformation of the seal 1412n under stress.

[0047] In some embodiments, L3 is less than L2. During the connection of the intake pipe 1412a to the cylinder block 1411, when the sealing contact surface 1412p contacts the intake contact surface 1411a, the limiting surface 1412h contacts the intake contact surface 1411a (see...). Figure 2 The distance between the support surface 1412e and the air intake contact surface 1411a is greater than the distance between the support surface 1412e and the air intake contact surface 1411a, making it easier for the seal 1412n to deform towards the outside of the support ring 1412d, that is, towards the limiting surface 1412h. This reduces the probability that the seal 1412n will deform towards the inside of the support ring 1412d and invade the air intake hole 1411b.

[0048] Reference Figure 3 and Figure 4 In some embodiments, the limiting protrusion 1412g is provided with a mounting hole 1412j, and a connecting screw 1412k is inserted into the mounting hole 1412j. Cylinder body 1411 (see...) Figure 2 The outer wall of the intake pipe 1412a has a mating surface 1411c, which is provided with a connecting screw hole 1411d. A connecting screw 1412k engages with the connecting screw hole 1411d to fix the intake pipe 1412a and the cylinder 1411 together. Optionally, the mating surface 1411c is located on the mating protrusion 1411e. After the intake pipe 1412a is connected to the mating protrusion 1411e, the mating surface 1411c fits against the limiting surface 1412h to limit the distance between the mounting surface 1412b and the intake contact surface 1411a, thereby reducing the risk of damage to the support ring 1412d or the cylinder 1411 due to excessive force. In other embodiments, the intake pipe 1412a and the mating protrusion 1411e can also be connected to each other by other structures such as clamps.

[0049] In some embodiments, the intake pipe 1412a, support ring 1412d, and limiting protrusion 1412g are integrally cast. In other embodiments, the support ring 1412d may be welded to the mounting surface 1412b. In other embodiments, the limiting protrusion 1412g may be welded to the mounting surface 1412b. In other embodiments, the intake pipe 1412a, support ring 1412d, and limiting protrusion 1412g may also be interconnected in other ways.

[0050] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. An engine, comprising: Cylinder body; the outer wall of the cylinder body has an air intake contact surface, and the air intake contact surface is provided with an air intake hole communicating with the interior of the cylinder body; An intake assembly, comprising an intake pipe and a seal, wherein one end of the intake pipe is connected to the cylinder block and communicates with the intake port; The features are as follows: the end wall of the intake pipe near the cylinder is defined as the mounting surface; the opening of the intake pipe on the mounting surface is defined as the outlet; the mounting surface is provided with a support ring; the outlet is located inside the area enclosed by the support ring; the seal is elastic; the seal is disposed between the mounting surface and the intake contact surface and sleeved on the support ring; the end wall of the seal away from the mounting surface along the normal direction of the mounting surface is defined as the sealing contact surface; the end wall of the support ring away from the mounting surface along the normal direction of the mounting surface is defined as the support surface; the distance between the sealing contact surface and the mounting surface is L1; the distance between the support surface and the mounting surface is L2; ​​and L1 is greater than L2.

2. The engine according to claim 1, characterized in that, The difference between L2 and L1 is 0.2 mm to 0.5 mm.

3. The engine according to claim 1, characterized in that, The mounting surface is provided with a limiting protrusion, which can abut against the outer peripheral wall of the seal.

4. The engine according to claim 3, characterized in that, The end wall of the seal, located away from the mounting surface along the normal direction of the mounting surface, is defined as the sealing contact surface. The end wall of the limiting protrusion, located away from the mounting surface along the normal direction of the mounting surface, is defined as the limiting surface. The distance between the limiting surface and the mounting surface along the normal direction of the mounting surface is L3, and L1 is greater than L3.

5. The engine according to claim 4, characterized in that, L3 is smaller than L2.

6. The engine according to claim 3, characterized in that, The limiting protrusions are arranged in multiple intervals along the circumference of the support ring.

7. The engine according to claim 1, characterized in that, One of the outer peripheral wall of the support ring and the inner peripheral wall of the seal is provided with a positioning protrusion, and the other of the outer peripheral wall of the support ring and the inner peripheral wall of the seal is provided with a positioning groove, and the positioning protrusion can be inserted into the positioning groove.

8. The engine according to claim 1, characterized in that, The sealing element is a rubber gasket, and the thickness of the sealing element is 2mm to 5mm.

9. The engine according to claim 8, characterized in that, The thickness of the seal is 3mm to 4mm.

10. A vehicle comprising: Frame; A body panel that at least partially covers the vehicle frame; A walking system, which is at least partially located below the frame and at least partially connected to the frame; Power system; The power system is characterized in that it includes an engine as described in any one of claims 1 to 9, wherein the cylinder block of the engine is at least partially supported by the vehicle frame, and the engine is drive-connected to the walking system.

Images