Engine air inlet pipe and system
By employing a variable diameter corrugated structure, a hard plastic support ring, and a metal inner liner ring in the engine intake pipe, the assembly problem between the intake pipe and the engine intake port is solved, achieving better sealing and assemblability.
Patent Information
- Application Number
- CN202520454523.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The existing engine intake pipe has poor resilience, resulting in greater assembly resistance with the engine intake anti-detachment boss. Loosening or gaps are prone to occur at the intake pipe interface, reducing sealing performance.
The air outlet, which adopts a variable diameter corrugated structure, is sealed to the engine air inlet and fixed by a rigid plastic support ring and a transmission ring with a metal inner liner, thereby enhancing the sealing performance and solving the problem of out-of-roundness at the ring head.
It improves the resilience of the intake pipe, reduces assembly resistance, enhances sealing performance, avoids loosening or gaps at the interface, and improves assemblability and sealing.
Smart Images
Figure CN223794251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine intake pipe technology, and in particular to an engine intake pipe and system. Background Technology
[0002] The engine intake pipe is usually located in the engine compartment and is a key component connecting the air filter and the engine. The existing TPV intake hose has less elasticity at the pipe opening than rubber, which will hinder the assembly of the TPV pipe when connected to the ultra-high anti-detachment boss. Because it is made of soft material, it cannot provide support for welding the noise reduction structure, making it difficult to weld the noise reduction structure. Because it uses ordinary transmission ring clamp for fixing, ordinary transmission ring clamp is prone to out-of-roundness at the ring head. In addition, the insufficient elasticity of the TPV pipe opening results in poor sealing performance of the TPV intake hose. Utility Model Content
[0003] This utility model provides an engine intake pipe and system to solve the technical problem in the related art where the poor resilience of the existing intake pipe leads to a large assembly resistance between the intake pipe and the anti-detachment boss of the engine intake port, and the intake pipe interface is prone to loosening or gaps, which reduces the sealing performance.
[0004] In a first aspect, an engine intake manifold is provided, comprising:
[0005] The intake pipe body has an air outlet at its tail end, and the air outlet has a corrugated structure with a variable diameter.
[0006] When the air outlet is connected to the engine air inlet, the corrugated surface of the variable diameter corrugated structure of the air outlet is sealed to the engine air inlet by passing through the anti-detachment boss of the engine air inlet and closely adhering to the engine air inlet.
[0007] In some embodiments, the air outlet includes:
[0008] A first annular boss, a groove, and a second annular boss are sequentially connected to the tail end of the intake pipe body. The diameters of the first annular boss and the second annular boss are the same and both are larger than the diameter of the intake pipe body. The diameter of the groove is smaller than the diameters of the first annular boss and the second annular boss.
[0009] In some embodiments, the first annular boss, the second annular boss, and the anti-detachment boss are connected by a transition fit, and the groove and the engine air intake are connected by an interference fit.
[0010] In some embodiments, the first end of the air intake pipe body is provided with an air inlet, which is a variable-diameter corrugated structure similar to the air outlet.
[0011] In some embodiments, the intake manifold body includes:
[0012] A bellows, wherein the bellows is disposed between the air inlet and the air outlet;
[0013] A first wavelength tube is disposed between the corrugated tube and the air outlet;
[0014] The second wavelength tube is located below the first wavelength tube.
[0015] In some embodiments, the first wavelength tube is a quarter-wavelength tube of 840Hz to 850Hz, and the second wavelength tube is a quarter-wavelength tube of 1900Hz to 2000Hz.
[0016] In some embodiments, the engine intake manifold further includes:
[0017] A support ring is sleeved on the outside of the air intake pipe body and located between the bellows and the air outlet. The top of the support ring has a first opening and is connected to the first wavelength tube, and the side of the support ring has a second opening and is connected to the second wavelength tube.
[0018] In some embodiments, the inner wall of the support ring is provided with a plurality of engagement platforms spaced apart along the circumferential direction. The engagement platforms are in the shape of an inverted triangle and are used to engage with the intake pipe body.
[0019] In some embodiments, the engine intake manifold further includes:
[0020] Two ring clamps are provided, one of which is fitted outside the air outlet and the other of which is fitted outside the air inlet, and each ring clamp has a movable inner liner ring at its snap fastener.
[0021] Secondly, an engine system is provided, including the aforementioned engine intake manifold.
[0022] The beneficial effects of the technical solution provided by this utility model include:
[0023] This utility model provides an engine intake pipe and system. The engine intake pipe includes an intake pipe body, and an outlet is provided at the tail end of the intake pipe body. The outlet has a variable diameter corrugated structure. When the outlet is connected to the engine intake port, the corrugated surface of the variable diameter corrugated structure of the outlet is sealed to the engine intake port by passing through the anti-detachment boss of the engine intake port. The variable diameter corrugated structure of the outlet increases the resilience of the intake pipe and reduces the contact between the intake pipe and the engine intake port. The assembly resistance of the engine intake anti-detachment boss is reduced, and the guide distance is lengthened, which greatly improves the assemblability of the intake pipe. This allows it to effectively pass through the ultra-high anti-detachment boss, preventing loosening or gaps at the intake pipe interface and improving sealing performance. A hard plastic support ring provides support for welding, and the support ring has an interlocking platform inside. It is integrated with the intake pipe through a blow molding process and fixed by a transmission ring with a metal inner liner ring. The inner liner ring effectively solves the problem of out-of-roundness at the ring head and improves the sealing performance of the intake pipe opening. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the structure of an engine intake pipe provided for an embodiment of this utility model;
[0026] Figure 2 An assembly diagram of an engine intake pipe provided for an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the air outlet structure provided in an embodiment of the present utility model;
[0028] Figure 4 A schematic diagram of the support ring provided in an embodiment of this utility model;
[0029] Figure 5 A schematic diagram of the structure of the ring hoop provided in an embodiment of this utility model;
[0030] Figure label:
[0031] 1. Intake pipe body; 11. Bellows; 12. First wavelength tube; 13. Second wavelength tube;
[0032] 2. Air outlet; 21. First annular boss; 22. Groove; 23. Second annular boss;
[0033] 3. Engine air intake; 31. Anti-detachment boss;
[0034] 4. Air intake;
[0035] 5. Support ring; 51. First opening; 52. Second opening; 53. Engagement platform;
[0036] 6. Ring hoop; 61. Inner lining ring. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0038] This utility model provides an engine intake pipe and system that solves the technical problems in the related art, such as poor resilience of existing intake pipes, resulting in high assembly resistance between the intake pipe and the anti-detachment boss of the engine intake port, easy loosening or gaps at the intake pipe interface, and reduced sealing performance.
[0039] Figure 1 This utility model provides an engine intake pipe, comprising: an intake pipe body 1, wherein the end of the intake pipe body 1 is provided with an outlet 2, the outlet 2 being a variable diameter corrugated structure, and when the outlet 2 is connected to the engine intake port 3, the corrugated surface of the variable diameter corrugated structure of the outlet 2 passes through the anti-detachment boss 31 of the engine intake port 3 and is tightly abutted against the engine intake port 3 and sealed to it.
[0040] The engine intake pipe provided in this embodiment of the utility model includes an intake pipe body with an outlet at its tail end. The outlet has a variable-diameter corrugated structure. When the outlet is connected to the engine intake port, the corrugated surface of the variable-diameter corrugated structure of the outlet is sealed to the engine intake port by passing through the anti-detachment boss of the engine intake port. The use of a variable-diameter corrugated surface seal instead of a large-area seal increases the resilience of the intake pipe, allowing the engine intake pipe to pass through higher... The anti-detachment boss on the handpiece reduces the assembly resistance between the intake pipe and the engine intake port anti-detachment boss, while increasing the guide distance, greatly improving the assemblability of the intake pipe. This allows it to effectively pass through the ultra-high anti-detachment boss, preventing loosening or gaps at the intake pipe interface and improving sealing performance. A hard plastic support ring provides support for welding, and the support ring has an interlocking platform inside. It is integrated with the intake pipe through a blow molding process and fixed by a transmission ring with a metal inner liner ring. The inner liner ring effectively solves the problem of out-of-roundness at the ring head and improves the sealing performance of the intake pipe opening.
[0041] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 3 As shown, the air outlet 2 includes a first annular boss 21, a groove 22, and a second annular boss 23 connected sequentially to the tail end of the air intake pipe body 1. The diameters of the first annular boss 21 and the second annular boss 23 are the same and both larger than the diameter of the air intake pipe body 1. The diameter of the groove 22 is smaller than the diameters of the first annular boss 21 and the second annular boss 23. The first annular boss 21, the groove 22, and the second annular boss 23 combine to form a corrugated arc surface that is high at both ends and low in the middle. The curvature of the corrugated arc surface is small and the corrugated surface is narrow, providing a longer guiding distance, making it easier for the air outlet 2 of the air intake pipe body 1 to pass through the engine air intake 3 and be sealed to it.
[0042] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 3As shown, the first annular boss 21, the second annular boss 23, and the anti-detachment boss 31 are connected by a transition fit, and the groove 22 is connected by an interference fit with the engine air intake 3. The transition fit is easy to disassemble and assemble. The first annular boss 21 and the second annular boss 23 can easily pass through the higher anti-detachment boss 31 of the engine air intake 3 without damaging the engine air intake 3. The interference fit can ensure a tight contact between the groove 22 and the engine air intake 3, and a certain cohesive force can be formed between the pipe openings, which helps to enhance the strength of the connection, thereby effectively improving the sealing performance of the engine air intake pipe. In addition, the first annular boss 21, the groove 22, and the second annular boss 23 are all made of rubber material, which has high elasticity and airtightness.
[0043] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the first end of the intake pipe body 1 is provided with an air inlet 4. The air inlet 4 has the same variable diameter corrugated structure as the air outlet 2. The air inlet 4 is used to connect with the outlet of the air filter. The use of a variable diameter corrugated structure increases the resilience of the air inlet 4, allowing the engine intake pipe to pass through the anti-detachment boss of the hand parts at a higher height. This reduces the assembly resistance between the air inlet 4 and the anti-detachment boss of the air filter outlet, avoids loosening or gaps at the air inlet 4, and improves the sealing performance.
[0044] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the intake pipe body 1 includes a bellows 11, a first wavelength tube 12, and a second wavelength tube 13. The bellows 11 is located between the intake port 4 and the outlet port 2. The first wavelength tube 12 is located between the bellows 11 and the outlet port 2. The second wavelength tube 13 is located below the first wavelength tube 12. The bellows 11 is used for decoupling and absorbing engine vibration to prevent vibration from being transmitted to the vehicle body and affecting the passenger's comfort. The first wavelength tube 12 and the second wavelength tube 13 are integrated acoustic elements used to reduce engine noise.
[0045] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1As shown, the first wavelength tube 12 is a quarter-wavelength tube with a wavelength of 840Hz to 850Hz, and the second wavelength tube 13 is a quarter-wavelength tube with a wavelength of 1900Hz to 2000Hz. The 840Hz to 850Hz quarter-wavelength tube is a specially designed acoustic element used to attenuate sound waves close to 850Hz. The 1900Hz to 2000Hz quarter-wavelength tube is an integrated acoustic element used to attenuate sound waves close to 2000Hz. For a sound wave of a specific frequency, if the length of the tube is exactly one-quarter of the wavelength of that sound wave, then the reflected wave will be out of phase with the incident wave, causing the sound waves to cancel each other out at the tube entrance, forming a node of the sound wave. Therefore, for a sound wave of that specific frequency, the quarter-wavelength tube has a strong attenuation effect at the entrance.
[0046] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 4 As shown, the engine intake pipe further includes a support ring 5, which is sleeved on the outside of the intake pipe body 1 and located between the corrugated pipe 11 and the outlet 2. The top of the support ring 5 has a first opening 51 and is connected to the first wavelength tube 12. The side of the support ring 5 has a second opening 52 and is connected to the second wavelength tube 13. The support ring 5 is made of plastic and is used to provide support for the intake pipe body 1 during welding. The shape of the first opening 51 matches the first wavelength tube 12, and the shape of the second opening 52 matches the second wavelength tube 13, so that the intake pipe body 1 can pass through the support ring 5 and connect to the first wavelength tube 12 and the second wavelength tube 13.
[0047] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 4 As shown, the inner wall of the support ring 5 is provided with a plurality of engagement platforms 53 at intervals along the circumferential direction. The engagement platforms 53 are in the shape of an inverted triangle and are used to engage with the intake pipe body 1. The inner wall of the support ring 5 is provided with eighteen engagement platforms 53 at intervals along the circumferential direction. Each engagement platform 53 is in the shape of an inverted triangle, which increases the friction between the engagement platform 53 and the intake pipe body 1, making it easier for the engagement platform 53 to engage with the intake pipe body 1 and preventing the support ring 5 from rotating or loosening.
[0048] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 5As shown, the engine intake pipe further includes two ring clamps 6. One ring clamp 6 is fitted outside the air outlet 2, and the other ring clamp 6 is fitted outside the air intake 4. Each ring clamp 6 has a movable inner liner ring 61 at its snap-fit point. When the air outlet 2 is connected to the engine intake 3, one ring clamp 6 is fitted outside the air outlet 2 for fastening. When the air intake 4 is connected to the air filter outlet, the other ring clamp 6 is fitted outside the air outlet 3 for fastening. The ring 6 is fitted onto the outside of the air inlet 4 for fastening. After the bolts of the ring 6 are tightened, the ring body of the ring 6 is prone to becoming out of round, resulting in a gap between the buckle of the ring 6 and the air outlet 2 or the air inlet 4. The inner lining ring 61 is used to prevent the ring 6 from becoming out of round. When the bolts of the ring 6 are tightened, the inner lining ring 61 is in close contact with the air outlet 2 or the air inlet 4 and is fastened to it, thereby improving the sealing performance of the air outlet 2 and the air inlet 4.
[0049] This utility model embodiment also provides an engine system, including the aforementioned engine intake pipe. The engine intake pipe includes an intake pipe body 1, and an outlet 2 is provided at the tail end of the intake pipe body 1. The outlet 2 is a variable diameter corrugated structure. When the outlet 2 is connected to the engine intake port 3, the corrugated surface of the variable diameter corrugated structure of the outlet 2 passes through the anti-detachment boss 31 of the engine intake port 3 and is tightly attached to the engine intake port 3 to form a sealed connection.
[0050] The engine system provided in this embodiment of the utility model has an intake pipe body, and an outlet is provided at the tail end of the intake pipe body. The outlet has a variable diameter corrugated structure. When the outlet is connected to the engine intake port, the corrugated surface of the variable diameter corrugated structure of the outlet is sealed to the engine intake port through the anti-detachment boss. The use of the corrugated surface of the variable diameter corrugated structure to seal instead of a large-area seal increases the resilience of the intake pipe through the variable diameter corrugated structure of the outlet, allowing the engine intake pipe to pass through a wider area. The high anti-detachment boss on the joint reduces the assembly resistance between the intake pipe and the engine intake port anti-detachment boss, while also lengthening the guide distance, greatly improving the assemblability of the intake pipe. This allows it to effectively pass through the ultra-high anti-detachment boss, preventing loosening or gaps at the intake pipe interface and improving sealing performance. A hard plastic support ring provides support for welding, and the support ring has an interlocking platform inside. It is integrated with the intake pipe through a blow molding process and is also fixed by a transmission ring with a metal inner liner ring. The inner liner ring effectively solves the problem of out-of-roundness at the ring head and improves the sealing performance of the intake pipe opening.
[0051] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 3As shown, the air outlet 2 includes a first annular boss 21, a groove 22, and a second annular boss 23 connected sequentially to the tail end of the air intake pipe body 1. The diameters of the first annular boss 21 and the second annular boss 23 are the same and both larger than the diameter of the air intake pipe body 1. The diameter of the groove 22 is smaller than the diameters of the first annular boss 21 and the second annular boss 23. The first annular boss 21, the groove 22, and the second annular boss 23 combine to form a corrugated arc surface that is high at both ends and low in the middle. The curvature of the corrugated arc surface is small and the corrugated surface is narrow, providing a longer guiding distance, making it easier for the air outlet 2 of the air intake pipe body 1 to pass through the engine air intake 3 and be sealed to it.
[0052] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 3 As shown, the first annular boss 21, the second annular boss 23, and the anti-detachment boss 31 are connected by a transition fit, and the groove 22 is connected by an interference fit with the engine air intake 3. The transition fit is easy to disassemble and assemble. The first annular boss 21 and the second annular boss 23 can easily pass through the higher anti-detachment boss 31 of the engine air intake 3 without damaging the engine air intake 3. The interference fit can ensure a tight contact between the groove 22 and the engine air intake 3, and a certain cohesive force can be formed between the pipe openings, which helps to enhance the strength of the connection, thereby effectively improving the sealing performance of the engine air intake pipe. In addition, the first annular boss 21, the groove 22, and the second annular boss 23 are all made of rubber material, which has high elasticity and airtightness.
[0053] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 2 As shown, the first end of the intake pipe body 1 is provided with an air inlet 4. The air inlet 4 has the same variable diameter corrugated structure as the air outlet 2. The air inlet 4 is used to connect with the outlet of the air filter. The use of a variable diameter corrugated structure increases the resilience of the air inlet 4, allowing the engine intake pipe to pass through the anti-detachment boss of the hand parts at a higher height. This reduces the assembly resistance between the air inlet 4 and the anti-detachment boss of the air filter outlet, avoids loosening or gaps at the air inlet 4, and improves the sealing performance.
[0054] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1As shown, the intake pipe body 1 includes a bellows 11, a first wavelength tube 12, and a second wavelength tube 13. The bellows 11 is located between the intake port 4 and the outlet port 2. The first wavelength tube 12 is located between the bellows 11 and the outlet port 2. The second wavelength tube 13 is located below the first wavelength tube 12. The bellows 11 is used for decoupling and absorbing engine vibration to prevent vibration from being transmitted to the vehicle body and affecting the passenger's comfort. The first wavelength tube 12 and the second wavelength tube 13 are integrated acoustic elements used to reduce engine noise.
[0055] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 As shown, the first wavelength tube 12 is a quarter-wavelength tube with a wavelength of 840Hz to 850Hz, and the second wavelength tube 13 is a quarter-wavelength tube with a wavelength of 1900Hz to 2000Hz. The 840Hz to 850Hz quarter-wavelength tube is a specially designed acoustic element used to attenuate sound waves close to 850Hz. The 1900Hz to 2000Hz quarter-wavelength tube is an integrated acoustic element used to attenuate sound waves close to 2000Hz. For a sound wave of a specific frequency, if the length of the tube is exactly one-quarter of the wavelength of that sound wave, then the reflected wave will be out of phase with the incident wave, causing the sound waves to cancel each other out at the tube entrance, forming a node of the sound wave. Therefore, for a sound wave of that specific frequency, the quarter-wavelength tube has a strong attenuation effect at the entrance.
[0056] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 4 As shown, the engine intake pipe further includes a support ring 5, which is sleeved on the outside of the intake pipe body 1 and located between the corrugated pipe 11 and the outlet 2. The top of the support ring 5 has a first opening 51 and is connected to the first wavelength tube 12. The side of the support ring 5 has a second opening 52 and is connected to the second wavelength tube 13. The support ring 5 is made of plastic and is used to provide support for the intake pipe body 1 during welding. The shape of the first opening 51 matches the first wavelength tube 12, and the shape of the second opening 52 matches the second wavelength tube 13, so that the intake pipe body 1 can pass through the support ring 5 and connect to the first wavelength tube 12 and the second wavelength tube 13.
[0057] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 4As shown, the inner wall of the support ring 5 is provided with a plurality of engagement platforms 53 at intervals along the circumferential direction. The engagement platforms 53 are in the shape of an inverted triangle and are used to engage with the intake pipe body 1. The inner wall of the support ring 5 is provided with eighteen engagement platforms 53 at intervals along the circumferential direction. Each engagement platform 53 is in the shape of an inverted triangle, which increases the friction between the engagement platform 53 and the intake pipe body 1, making it easier for the engagement platform 53 to engage with the intake pipe body 1 and preventing the support ring 5 from rotating or loosening.
[0058] As an optional implementation, in one embodiment of the utility model, see [link to utility model description]. Figure 1 and Figure 5 As shown, the engine intake pipe further includes two ring clamps 6. One ring clamp 6 is fitted outside the air outlet 2, and the other ring clamp 6 is fitted outside the air intake 4. Each ring clamp 6 has a movable inner liner ring 61 at its snap-fit point. When the air outlet 2 is connected to the engine intake 3, one ring clamp 6 is fitted outside the air outlet 2 for fastening. When the air intake 4 is connected to the air filter outlet, the other ring clamp 6 is fitted outside the air outlet 3 for fastening. The ring 6 is fitted onto the outside of the air inlet 4 for fastening. After the bolts of the ring 6 are tightened, the ring body of the ring 6 is prone to becoming out of round, resulting in a gap between the buckle of the ring 6 and the air outlet 2 or the air inlet 4. The inner lining ring 61 is used to prevent the ring 6 from becoming out of round. When the bolts of the ring 6 are tightened, the inner lining ring 61 is in close contact with the air outlet 2 or the air inlet 4 and is fastened to it, thereby improving the sealing performance of the air outlet 2 and the air inlet 4.
[0059] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0060] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0061] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.
Claims
1. An engine intake manifold, characterized in that, include: The intake pipe body (1) has an air outlet (2) at its tail end, and the air outlet (2) is a corrugated structure with a variable diameter. When the air outlet (2) is connected to the engine air inlet (3), the corrugated surface of the variable diameter corrugated structure of the air outlet (2) is sealed to the engine air inlet (3) by passing through the anti-detachment boss (31) and closely adhering to the engine air inlet (3).
2. The engine intake pipe according to claim 1, characterized in that, The air outlet (2) includes: A first annular boss (21), a groove (22), and a second annular boss (23) are sequentially connected to the tail end of the intake pipe body (1). The diameters of the first annular boss (21) and the second annular boss (23) are the same and both are larger than the diameter of the intake pipe body (1). The diameter of the groove (22) is smaller than the diameters of the first annular boss (21) and the second annular boss (23).
3. The engine intake manifold according to claim 2, characterized in that: The first annular boss (21), the second annular boss (23) and the anti-detachment boss (31) are connected by transition fit, and the groove (22) and the engine air inlet (3) are connected by interference fit.
4. The engine intake manifold according to claim 1, characterized in that: The first end of the air intake pipe body (1) is provided with an air inlet (4), and the air inlet (4) is a variable diameter corrugated structure that is the same as the air outlet (2).
5. The engine intake manifold according to claim 4, characterized in that, The intake manifold body (1) includes: A bellows (11) is provided between the air inlet (4) and the air outlet (2); A first wavelength tube (12) is disposed between the corrugated tube (11) and the air outlet (2); The second wavelength tube (13) is located below the first wavelength tube (12).
6. The engine intake manifold according to claim 5, characterized in that: The first wavelength tube (12) is a quarter-wavelength tube of 840HZ to 850HZ, and the second wavelength tube (13) is a quarter-wavelength tube of 1900HZ to 2000HZ.
7. The engine intake manifold according to claim 5, characterized in that, Also includes: Support ring (5), the support ring (5) is sleeved on the outside of the air inlet pipe body (1) and located between the corrugated pipe (11) and the air outlet (2). The top of the support ring (5) is provided with a first opening (51) and connected to the first wavelength tube (12). The side of the support ring (5) is provided with a second opening (52) and connected to the second wavelength tube (13).
8. The engine intake manifold according to claim 7, characterized in that: The inner wall of the support ring (5) is provided with a plurality of engagement platforms (53) spaced apart along the circumferential direction. The engagement platforms (53) are in the shape of an inverted triangle and are used to engage with the intake pipe body (1).
9. The engine intake manifold according to claim 5, characterized in that, Also includes: Two ring clamps (6), one ring clamp (6) is fitted outside the air outlet (2) and the other ring clamp (6) is fitted outside the air inlet (4), and each ring clamp (6) has a movable inner lining ring (61) at the buckle.
10. An engine system, characterized in that, Includes the engine intake manifold as described in any one of claims 1-9.