Variable intake system

Abstract

The utility model relates to a variable air inlet system. The variable air inlet system comprises a mounting part, a driver, a sliding rail, a lengthening pipe and a buffering mechanism, the driver comprises a driving part and a push rod, the driving part is closer to the air inlet of the engine than the push rod when being observed from the side view direction, and the driving part can enable the push rod to generate linear displacement. The sliding rail is arranged on the installation part through a sliding rail support, and the sliding rail support is provided with a lengthening pipe stopping face. The lengthening pipe is provided with a connecting part. And the buffer mechanism is arranged on the connecting part of the lengthening pipe or the lengthening pipe stop surface. Wherein the push rod is actuated by the driving force of the driving piece, so that the lengthening pipe can be selectively combined with or separated from the air inlet pipe, and during separation, the connecting part is propped against the backstop surface of the lengthening pipe, and buffering force is provided by the buffering mechanism, so that the power performance of high and low rotating speeds and the oil consumption level of an engine can be simultaneously improved, and high-rotating-speed vibration can be overcome; the method is an optimal design.

Description

Technical Field

[0001] The utility model relates to a variable air intake system, in particular to a variable air intake system suitable for a motorcycle engine. Background Art

[0002] See also Figure 1 , which is a schematic diagram of an existing air filter. The figure shows an existing variable air intake system 91, which is arranged in an air filter 90 of a motorcycle engine. The air filter 90 has an air intake box 9101, an air intake pipe 9102, an air filter element 9103 and an air intake box cover 9104. The air intake pipe 9102 is connected to the air intake box 9101, and the air filter element 9103 is accommodated in the accommodation space formed by the air intake box 9101 and the air intake box cover 9104. External air can only enter the air intake box 9101 after being filtered by the air filter element 9103, and then enter the engine through the air intake pipe 9102 for combustion.

[0003] Please also read Figure 2 , which is a side view of the growth tube and the intake pipe of the existing variable intake system in a separated state. The existing variable intake system 91 mainly includes a mounting portion 92, a driver 93, a slide rail 94 and a growth tube 95. The mounting portion 92 is fixed in the intake box 9101 by a plurality of locking accessories 920. The driver 93 is arranged on the mounting portion 92, including a driving member 931, a push rod 932, a magnetic member (not shown) and an elastic member 934, wherein, when viewed from the side, the push rod 932 is located between the intake pipe 9102 and the driving member 931, and the driving member 931 can cause the push rod 932 to produce linear displacement. The slide rail 94 is arranged on the mounting portion 92 by a slide rail bracket 941. The growth tube 95 has a connecting portion 950, and the connecting portion 950 is slidably arranged on the slide rail 94 and connected to the push rod 932 by a buffer mechanism 962.

[0004] In the existing configuration, the push rod 932 is actuated by the driving force of the driving member 931, so that the connecting portion 950 can slide on the slide rail 94, thereby allowing the extension tube 95 to selectively connect or separate with the intake pipe 9102. When the motorcycle engine reaches a high speed, the driving member 931 provides a driving force to linearly drive the push rod 932 to move toward the driver 93 side, thereby pushing the extension tube 95 to move away from the intake pipe 9102 along the slide rail 94, and fix the push rod 932 with a magnetic member to maintain the separation state of the extension tube 95 and the intake pipe 9102, thereby shortening the overall tube length. When the motorcycle engine returns to a low speed, the driving member 931 provides a driving force, which cooperates with the elastic restoring force of the elastic member 934 to linearly drive the push rod 932 to move toward the intake pipe 9102, thereby pushing the extension tube 95 to move along the slide rail 94 until it is connected to the intake pipe 9102, and the elastic member 934 applies force to push the push rod 932, so that the extension tube 95 can be against the pipe opening of the intake pipe 9102 to maintain the connection state between the extension tube 95 and the intake pipe 9102, so that the overall pipe length is increased. Through the above design, the motorcycle engine can meet the power performance at high and low speeds at the same time.

[0005] However, since the magnetic part of the driver 93 has only two states, adsorption and non-adsorption, the failure mode is immediate. Therefore, when the existing variable air intake system 91 is in a separated state and the vibration force and the elastic restoring force of the elastic part 934 are greater than the holding force of the magnetic part, it will fail immediately and cannot be restored. Therefore, such a configuration is more difficult to overcome the vibration of the motorcycle engine, and it is easier to make the variable air intake system fail in an environment where the motorcycle engine has a large vibration.

[0006] For this reason, the inventor, in the spirit of active invention, has been eager to think of a variable intake system that can solve the above-mentioned problems. After several studies and experiments, the present utility model has been finally completed. Utility Model Content

[0007] The main purpose of the utility model is to provide a variable air intake system, which allows the growth tube to be selectively combined with or separated from the intake tube, thereby adjusting the overall length of the intake tube, so as to simultaneously improve the power performance at high and low speeds and improve the fuel consumption level of the engine, and is beneficial to the spatial configuration of the air filter, and overcomes high-speed vibrations, so as to obtain more stable functionality and improve durability, which is actually an optimized design. In addition, by setting up a buffer mechanism, the impact force and sound generated by the switching of the connection state of the growth tube can also be reduced, and the vibration borne by the high-speed state can be reduced, thereby improving durability and commercial quality. Furthermore, by configuring the drive member closer to the air inlet of the engine than the push rod, the first elastic member is used to overcome the vibration, which makes the overall mechanism more stable and does not cause the problem of immediate failure described in the prior art.

[0008] To achieve the above-mentioned purpose, the variable air intake system of the utility model is arranged in an air filter of a motorcycle engine, and the air filter has an air intake box and an air intake pipe connected to the air intake box, and the other end of the air intake pipe is connected to the air inlet of the engine. The variable air intake system includes a mounting portion, a driver, a slide rail, a growth tube and a buffer mechanism. The mounting portion is arranged in the air intake box. The driver is arranged on the mounting portion, including a driving member and a push rod connected to the driving member, wherein, when viewed from the side, the driving member is closer to the air inlet of the engine than the push rod, and the driving member can cause the push rod to produce linear displacement. The slide rail is arranged on the mounting portion with a slide rail bracket, and the slide rail bracket has a growth tube stop surface. The growth tube has a connecting portion, and the connecting portion is slidably arranged on the slide rail and connected to the push rod. The buffer mechanism is arranged on the connecting portion of the growth tube or the growth tube stop surface. Among them, the push rod is actuated by the driving force of the driving member, so that the connecting part of the growth tube can slide on the slide rail, so that the growth tube can be selectively combined with or separated from the intake pipe, and when the growth tube is separated from the intake pipe, the connecting part of the growth tube presses against the stop surface of the growth tube and provides a buffering force through the buffer mechanism.

[0009] Another variable air intake system of the utility model is arranged in an air filter of a motorcycle engine, and the air filter has an air intake box and an air intake pipe connected to the air intake box, and the other end of the air intake pipe is connected to the air inlet of the engine. The variable air intake system includes a mounting portion, a driver, a slide rail, a growth tube, a growth tube stopper, and a buffer mechanism. The mounting portion is arranged in the air intake box. The driver is arranged on the mounting portion, including a driving member and a push rod connected to the driving member, wherein, when viewed from the side, the driving member is closer to the air inlet of the engine than the push rod, and the driving member can cause the push rod to produce a linear displacement. The slide rail is arranged on the mounting portion with a slide rail bracket. The growth tube has a connecting portion and a pipe diameter portion, the connecting portion is slidably arranged on the slide rail and connected to the push rod, and the pipe diameter portion is connected to the connecting portion. The growth tube stopper is arranged in the air intake box and has a growth tube stopper surface. The buffer mechanism is arranged on the pipe diameter portion of the growth tube or the growth tube stopper surface. Among them, the push rod is actuated by the driving force of the driving member, so that the connecting part of the growth tube can slide on the slide rail, so that the growth tube can be selectively combined with or separated from the intake pipe, and when the growth tube is separated from the intake pipe, the tube diameter part of the growth tube presses against the stop surface of the growth tube, and the buffering force is provided by the buffering mechanism.

[0010] The driving member may be a solenoid valve with a magnetic member to drive the push rod to operate.

[0011] The driving member can be electrically driven. When the growth tube is activated, the driving member is electrically driven, and when the growth tube is not activated, the driving member is not electrically driven. That is, when the growth tube is about to change the connection state with the intake pipe, the driving member needs to be electrically driven, and at other times, it does not need to be electrically driven to avoid overheating of the driving member.

[0012] The driving member can be connected to the push rod with a first elastic member as a source of reverse thrust. When the growth tube and the intake pipe are in a combined state, the magnetic member can adsorb and fix the push rod; when the growth tube and the intake pipe are in a separated state, the first elastic member can apply force to push the push rod. Therefore, the utility model uses the elastic restoring force of the first elastic member to put the growth tube and the intake pipe in a separated state, and uses the elastic restoring force of the first elastic member to overcome high-speed vibration (separated state). In combination with a buffer mechanism, the variable intake system can have more stable functionality and avoid failure in a high-vibration environment, wherein the first elastic member can be a spring. In addition, the utility model uses the adsorption force of the magnetic member to put the growth tube and the intake pipe in a combined state.

[0013] The driving direction of the driving member can be the same as the actuation direction of the growth tube, which is helpful for force transmission and reduces energy loss.

[0014] The driver may further include a sealing cover through which a wire group is passed, the wire group is connected to the driving member, and the sealing cover is arranged on the air intake box to maintain the air tightness of the air intake box.

[0015] The mounting portion and the air intake box may be an integrated structure.

[0016] The buffer mechanism may be arranged on the connecting portion of the growth tube, and the growth tube stop surface and the slide rail bracket may be an integrated structure.

[0017] The buffer mechanism may be arranged on the stop surface of the growth tube, and the stop surface of the growth tube and the air intake box may be an integrated structure.

[0018] The connecting portion can be connected to the push rod via a second elastic member.

[0019] The above summary and the following detailed description are exemplary in nature and are intended to further illustrate the scope of the patent application of the present utility model. Other purposes and advantages of the present utility model will be described in the subsequent specific implementation methods and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of an existing air filter.

[0021] Figure 2 The figure is a side view of a conventional variable intake system in which the growth pipe and the intake pipe are separated.

[0022] Figure 3 This is a side view of the variable intake system of the first embodiment of the utility model, in which the growth pipe and the intake pipe are in a separated state.

[0023] Figure 4 It is a schematic structural diagram of a driver according to the first embodiment of the utility model.

[0024] Figure 5It is a side view of the variable intake system of the first embodiment of the utility model, in which the growth pipe and the intake pipe are in a combined state.

[0025] Figure 6 This is a side view of the variable intake system of the second embodiment of the utility model, in which the growth pipe and the intake pipe are in a separated state.

[0026] Description of main component symbols:

[0027] 1, 1' variable intake system

[0028] 10, 10' air filter

[0029] 101, 101' Air intake box

[0030] 102 Intake pipe

[0031] 2 Installation

[0032] 20 Lock accessories

[0033] 3 Drivers

[0034] 31 driving parts

[0035] 32 Putter

[0036] 33 Magnetic parts

[0037] 34 first elastic member

[0038] 35 line group

[0039] 36 Sealing cover

[0040] 37 connector

[0041] 4 Slide rails

[0042] 41 Slide rail bracket

[0043] 410 Growth tube stop surface

[0044] 5, 5' Growth Tube

[0045] 50 connection part

[0046] 51 Pipe diameter

[0047] 61, 61' Buffer mechanism

[0048] 62 second elastic member

[0049] 7 Growth tube stopper

[0050] 70 Growth tube stop surface

[0051] 90 air filter

[0052] 91 variable intake system

[0053] 92 Installation Department

[0054] 920 Lock Accessories

[0055] 93 Drive

[0056] 931 drive parts

[0057] 932 Putter

[0058] 934 elastic parts

[0059] 94 Slide Rail

[0060] 941 Slide Rail Bracket

[0061] 95 Growth Tube

[0062] 950 connection

[0063] 962 buffer mechanism

[0064] 9101 air intake box

[0065] 9102 intake pipe

[0066] 9103 air filter

[0067] 9104 air intake box cover

[0068] P Inlet side DETAILED DESCRIPTION

[0069] See also Figure 3 to Figure 4 , which are respectively a side view of the variable air intake system of the first embodiment of the utility model in which the growth pipe and the air intake pipe are separated and a schematic diagram of the structure of the driver. The figure shows a variable air intake system 1, which is arranged in an air filter 10 of a motorcycle engine. The air filter 10 has an air intake box 101 and an air intake pipe 102 connected to the air intake box 101. The other end of the air intake pipe 102 is connected to the air inlet of the engine (not shown). Figure 3 It can be shown that the air intake of the engine is located at a relative position of the air intake side P, and the variable intake system 1 mainly includes a mounting portion 2, a driver 3, a slide rail 4, a growth tube 5 and a buffer mechanism 61.

[0070] In the present embodiment, the mounting portion 2 is fixedly mounted in the air intake box 101 by a plurality of locking accessories 20, but the present invention is not limited thereto. The mounting portion 2 and the air intake box 101 may also be an integrated structure. The driver 3 is disposed on the mounting portion 2, and includes a driving member 31, a push rod 32, a magnetic member 33, a first elastic member 34, a wire group 35, and a sealing cover 36. In the present embodiment, the driving member 31 is an electromagnetic valve driven by electricity, which can cause the push rod 32 to produce a linear displacement, and when viewed from the side, the driving member 31 is closer to the air intake of the engine than the push rod 32 (the direction of the air intake side P can be referred to). The magnetic member 33 is a permanent magnet for providing an adsorption magnetic force. The first elastic member 34 is a compression spring, which connects the driving member 31 and the push rod 32 to provide an elastic restoring force. One end of the wire group 35 is connected to the driving member 31, and the other end has a connector 37, which can extend out of the air intake box 101 to connect to the vehicle power supply and signal source. The sealing cover 36 is penetrated by the above-mentioned wire group 35 and assembled on the air intake box 101, so that the air intake box 101 still maintains its air tightness when the wire group 35 passes through. In the present embodiment, the slide rail 4 is arranged on the mounting portion 2 with two slide rail brackets 41, and the slide rail bracket 41 has a growth tube stop surface 410, and the growth tube stop surface 410 and the slide rail bracket 41 are an integral structure. The growth tube 5 has two connecting parts 50, and the connecting part 50 is slidably arranged on the slide rail 4 and connected to the push rod 32 with a second elastic member 62, and the second elastic member 62 is a compression spring, which is used to provide an elastic buffering force between the connecting part 50 and the push rod 32, and eliminate the gap between the connecting part 50 and the push rod 32. In the present embodiment, the buffer mechanism 61 is a rubber member and is arranged on the connecting part 50 of the growth tube 5, but it is not limited thereto, and the buffer mechanism 61 can also be arranged on the growth tube stop surface 410.

[0071] like Figure 3 to Figure 4 As shown, when the motorcycle engine reaches a high speed, in order to obtain a better intake efficiency, the driving member 31 of the variable intake system 1 will receive a signal indication to provide a driving force, and cooperate with the elastic restoring force of the first elastic member 34 as a reverse thrust source to linearly drive the push rod 32 to move away from the driver 3 side, thereby pushing the growth tube 5 to move along the slide rail 4 away from the intake pipe 102, until the connection portion 50 of the growth tube 5 is against the growth tube stop surface 410 through the buffer mechanism 61, and the first elastic member 34 is used to apply force to push the push rod 32 to maintain the separation state of the growth tube 5 and the intake pipe 102, so that the overall tube length is shortened and the high-speed intake efficiency is improved. In this embodiment, the elastic restoring force of the first elastic member 34 is used to overcome the high-speed vibration, and the setting of the buffer mechanism 61 can reduce the impact force and sound generated by the switching of the connection state of the growth tube 5, and reduce the vibration borne by the high-speed state, so that the variable intake system 1 has a more stable functionality, avoids failure in a high-vibration environment, and thus improves durability and commerciality.

[0072] In contrast, see Figures 4 to 5 , Figure 5 This is a side view of the variable air intake system of the first embodiment of the utility model in which the growth tube and the air intake pipe are in a combined state. When the motorcycle engine returns to a low speed, in order to obtain a better air intake efficiency, the drive member 31 of the variable air intake system 1 will receive a signal instruction to provide a driving force to linearly drive the push rod 32 to move toward the driver 3 until the push rod 32 abuts against the drive member 31, and the push rod 32 is fixed by the magnetic member 33 to maintain the combined state of the growth tube 5 and the air intake pipe 102, so that the overall pipe length increases and the air intake efficiency at low speed is improved.

[0073] In this embodiment, the driving direction of the driving member 31 is the same as the actuation direction of the growth tube 5, which is helpful for force transmission and reduces energy consumption. In addition, the driving member 31 is driven by electricity. When the growth tube 5 is actuated, the driving member 31 is powered on and driven, and when the growth tube 5 is not actuated, the driving member 31 is not powered on and driven. That is, when the growth tube 5 is to change the connection state with the intake pipe 102, the driving member 31 needs to be powered on and driven, and it does not need to be powered on and driven at other times to avoid overheating of the driving member 31.

[0074] See also Figure 4 and Figure 6 , Figure 6 This is a side view of the variable air intake system of the second embodiment of the utility model, in which the growth tube and the air intake tube are in a separated state. The figure shows another variable air intake system 1', which is similar to the variable air intake system 1 of the first embodiment, and the main difference is that the variable air intake system 1' of the second embodiment is arranged in an air filter 10' of a motorcycle engine, and also includes a growth tube stopper 7, which is arranged in the air intake box 101', wherein the growth tube stopper 7 has a growth tube stopper surface 70, and the growth tube stopper surface 70 and the air intake box 101' are an integral structure. In addition, the growth tube 5' has a connecting portion 50 and a pipe diameter portion 51, the pipe diameter portion 51 is connected to the connecting portion 50, the connecting portion 50 is slidably arranged on the slide rail 4 and connected to the push rod 32, and the pipe diameter portion 51 is connected to the connecting portion 50, forming an airflow channel for airflow. In this embodiment, the buffer mechanism 61' of the variable intake system 1' is disposed on the stop surface 70 of the growth tube, and when the growth tube 5' is separated from the intake tube 102, the tube diameter portion 51 abuts against the stop surface 70 of the growth tube, and the buffer mechanism 61' provides a buffer force, but the buffer mechanism 61' is not limited thereto, and the buffer mechanism 61' may also be disposed on the tube diameter portion 51 of the growth tube 5'. The function and operation mode of the variable intake system 1' of the second embodiment are the same as those of the variable intake system 1 of the first embodiment, so they are not described here in detail.

[0075] Through the above design, the variable intake system 1, 1' of the utility model can adjust the overall length of the intake pipe 102 by making the growth pipe 5, 5' selectively combined or separated with the intake pipe 102, thereby improving the power performance at high and low speeds and improving the fuel consumption level of the engine. In addition, the configuration structure of the variable intake system 1, 1' of the utility model can reduce the demand for the lateral space of the air intake box 101, so as to facilitate the configuration on the model with a smaller space, and can be modularly disassembled and assembled to facilitate the convenience of maintenance and the commonality of the system. On the other hand, in an environment with large vibration, the utility model is provided with a buffer mechanism 61, 61' to overcome the vibration, and can also reduce the impact force and sound generated by the growth pipe 5, 5' due to the switching of the connection state, so as to improve the durability and commerciality. Furthermore, by configuring the driving member 31 closer to the air inlet of the engine than the push rod 32, the first elastic member 34 is used to overcome the vibration, which will be more stable for the overall mechanism and will not cause the problem of immediate failure described in the prior art.

[0076] The above embodiments are merely examples for the convenience of explanation. The scope of rights claimed by the present utility model shall be based on the scope of protection required by the patent application documents, and is not limited to the above embodiments.

Claims

1. A variable air intake system, arranged in an air filter of a motorcycle engine, characterized in that: The air filter has an air intake box and an air intake pipe connected to the air intake box, and the other end of the air intake pipe is connected to an air inlet of the engine. The variable air intake system includes: A mounting portion, disposed in the air intake box; a driver, disposed on the mounting portion, comprising a driving member and a push rod connected to the driving member, wherein, when viewed from the side, the driving member is closer to the air inlet than the push rod, and the driving member can cause the push rod to produce a linear displacement; A slide rail, which is arranged on the mounting portion by a slide rail bracket, and the slide rail bracket has a growth tube stop surface; a growth tube having a connection portion, the connection portion being slidably disposed on the slide rail and connected to the push rod; and A buffer mechanism is provided on the connecting portion of the growth tube or the stop surface of the growth tube; Among them, the push rod is actuated by the driving force of the driving member, so that the connecting part can slide on the slide rail, and then the growth tube can be selectively combined with or separated from the intake pipe, and when the growth tube is separated from the intake pipe, the connecting part presses against the stop surface of the growth tube and provides a buffering force through the buffer mechanism.

2. A variable air intake system, arranged in an air filter of a motorcycle engine, characterized in that: The air filter has an air intake box and an air intake pipe connected to the air intake box, and the other end of the air intake pipe is connected to an air inlet of the engine. The variable air intake system includes: A mounting portion, disposed in the air intake box; a driver, disposed on the mounting portion, comprising a driving member and a push rod connected to the driving member, wherein, when viewed from the side, the driving member is closer to the air inlet than the push rod, and the driving member can cause the push rod to produce a linear displacement; A slide rail is disposed on the mounting portion by a slide rail bracket; A growth tube having a connection portion and a tube diameter portion, wherein the connection portion is slidably disposed on the slide rail and connected to the push rod, and the tube diameter portion is connected to the connection portion; a growth tube stopper, disposed in the air intake box and having a growth tube stopper surface; and A buffer mechanism is provided on the tube diameter portion of the growth tube or the stop surface of the growth tube; Among them, the push rod is actuated by the driving force of the driving member, so that the connecting part can slide on the slide rail, and then the growth tube can be selectively combined with or separated from the intake pipe, and when the growth tube is separated from the intake pipe, the tube diameter part presses against the stop surface of the growth tube and provides a buffering force through the buffer mechanism.

3. The variable intake system according to claim 1 or claim 2, characterized in that: The driving component is a solenoid valve with a magnetic component.

4. The variable intake system according to claim 3, characterized in that: The driving member is connected to the push rod by a first elastic member as a source of reverse thrust. When the growth tube and the intake pipe are in a combined state, the magnetic member adsorbs and fixes the push rod; when the growth tube and the intake pipe are in a separated state, the first elastic member applies force to push the push rod.

5. The variable intake system according to claim 1 or claim 2, characterized in that: The driving member is driven by electricity. When the growth tube is actuated, the driving member is powered on and driven; when the growth tube is not actuated, the driving member is not powered on and driven.

6. The variable intake system according to claim 1 or claim 2, characterized in that: The driving direction of the driving member is the same as the actuating direction of the growth tube.

7. The variable intake system according to claim 1 or claim 2, characterized in that: The driver also includes a sealing cover through which a wire group is passed. The wire group is connected to the driving member, and the sealing cover is arranged on the air inlet box.

8. The variable intake system according to claim 1 or claim 2, characterized in that: The mounting portion and the air intake box are an integrated structure.

9. The variable intake system according to claim 1 or claim 2, characterized in that: The connecting portion is connected to the push rod via a second elastic member.

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