CN104832327A - Air inlet pipe assembly for vehicle engine air inlet system and vehicle adopting air inlet pipe assembly - Google Patents
Air inlet pipe assembly for vehicle engine air inlet system and vehicle adopting air inlet pipe assembly Download PDFInfo
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- CN104832327A CN104832327A CN201410690525.2A CN201410690525A CN104832327A CN 104832327 A CN104832327 A CN 104832327A CN 201410690525 A CN201410690525 A CN 201410690525A CN 104832327 A CN104832327 A CN 104832327A
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- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses an air inlet pipe assembly for a vehicle engine air inlet system and a vehicle adopting the air inlet pipe assembly. The air inlet pipe assembly comprises an air inlet pipe, a quarter wavelength pipe, a piston, a transmission mechanism and a driving part, wherein one end of the quarter wavelength pipe is connected onto the air inlet pipe; the quarter wavelength pipe is communicated with the interior of the air inlet pipe; the piston can be movably arranged in the quarter wavelength pipe so as to change the communication length of the quarter wavelength pipe and the air inlet pipe; the transmission mechanism is connected with the piston; and the driving part and the transmission mechanism are connected so as to drive the transmission mechanism to drive the piston to move in the quarter wavelength pipe. According to the air inlet pipe assembly for the vehicle engine air inlet system, provided by the invention, the transmission mechanism is driven by the driving part to adjust to the position of the piston in the quarter wavelength pipe, so that the communication length of the quarter wavelength pipe and the air inlet pipe can be adjusted in real time, and the problem of air inlet noise can be effectively solved in a targeted manner.
Description
Technical field
The present invention relates to vehicle arrangement field, especially relate to a kind of suction tude assembly for vehicle motor gas handling system and there is its vehicle.
Background technique
What require vehicle riding comfort along with Consumer improves constantly, vehicle NVH (Noise, Vibration, Harshness, noise, vibration and the abbreviation of sound vibration roughness) performance become one of important indicator of consumer evaluation's automotive quality, the noise of gas handling system is one of main source of vehicle noise, setting up quarter-wave long tube is one of major measure reducing vehicle noise, with the change of engine speed, the frequency of engine aspirating system noise is also in continuous change, but, the eliminable noise frequency of quarter-wave long tube in correlation technique is only single specific frequency, thus cause the soundproof effect of quarter-wave long tube unsatisfactory.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention reside in and propose a kind of suction tude assembly for vehicle motor gas handling system, described suction tude assembly can reduce induction noise effectively.
The present invention also proposes a kind of vehicle with above-mentioned suction tude assembly.
The suction tude assembly for vehicle motor gas handling system according to a first aspect of the present invention, comprising: suction tude; Quarter-wave long tube, one end of described quarter-wave long tube is connected in described suction tude, and described quarter-wave long tube is communicated with described suction tude inside; Piston, described piston is located in described quarter-wave long tube movably to change the connection length be communicated with described suction tude of described quarter-wave long tube; Driving mechanism, described driving mechanism is connected with described piston; And actuator, described actuator is connected with described driving mechanism to drive described driving mechanism to drive described piston at described quarter wavelength in-pipe.
According to the suction tude assembly for vehicle motor gas handling system of the present invention, by adopting the position of actuator drive transmission device regulating piston in quarter-wave long tube, thus can adjust quarter-wave long tube and suction tude in real time be communicated with length, with pointedly and effectively improve induction noise problem.
Alternatively, described driving mechanism comprises: movement rod, the periphery wall of described movement rod has the first engaging tooth, and described movement rod is connected with described piston; And gear, the periphery wall of described gear has the second engaging tooth coordinated with described first engaging tooth, described gear coordinates with described movement rod to drive described piston to move.
Alternatively, described driving mechanism comprises: leading screw, and the periphery wall of described leading screw has outside thread, and described leading screw is connected with described piston; With the rotating block of hollow, have the internal thread coordinated with described outside thread in described rotating block, described rotating block coordinates with described leading screw to drive described piston to move.
Alternatively, described driving mechanism is pinion and rack or cam follower mechanism.
Particularly, the described suction tude assembly for vehicle motor gas handling system comprises further: speed probe, and described speed probe is connected the rotating speed of monitoring described motor with described motor; And single-chip microcomputer, described single-chip microcomputer is connected with described actuator with described speed probe.
Particularly, the sidewall of described suction tude is provided with outward extending extension part, and wherein said quarter-wave long tube is connected with described extension part, and described quarter-wave long tube is communicated with described suction tude inside by described extension part.
Particularly, the inner circle wall of described extension part is formed with groove, described quarter-wave long tube is provided with the projection with described groove fit.
Further, the described suction tude assembly for vehicle motor gas handling system comprises further: clip, and described hoop sleeve to be located on described extension part and corresponding with described groove.
Particularly, described actuator is stepper motor.
Vehicle according to a second aspect of the present invention, comprises the suction tude assembly for vehicle motor gas handling system according to a first aspect of the present invention.
Vehicle according to the invention, by arranging the suction tude assembly for vehicle motor gas handling system of above-mentioned first aspect, thus improves the overall performance of vehicle.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the suction tude assembly for vehicle motor gas handling system according to the embodiment of the present invention;
Fig. 2 is the connection diagram of the speed probe shown in Fig. 1, single-chip microcomputer, stepper motor, piston and power supply.
Reference character:
100: suction tude assembly;
1: suction tude; 11: extension part; 12: clip;
2: quarter-wave long tube; 21: protruding;
3: piston; 31: bolt;
4: driving mechanism; 41: movement rod; 42: gear;
5: stepper motor; 51: output shaft; 6: speed probe; 7: single-chip microcomputer; 8: power supply; 9: wire.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.
The suction tude assembly 100 for vehicle motor gas handling system of embodiment is according to a first aspect of the present invention described below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, the suction tude assembly 100 for vehicle motor gas handling system of embodiment comprises according to a first aspect of the present invention: suction tude 1, quarter-wave long tube 2, piston 3, driving mechanism 4 and actuator (stepper motor 5 such as shown in Fig. 1).
Particularly, engine aspirating system can also comprise: air-strainer (scheming not shown), wherein the entrance point of air-strainer can be connected with ambient atmosphere by suction tude 1, the outlet end of air-strainer also can be connected with motor (scheming not shown) by suction tude 1, thus the air in ambient atmosphere can in the filtration of air-strainer, then inflow engine.In brief, suction tude 1 can be connected between air-strainer and motor, and suction tude 1 can also be connected between air-strainer and ambient atmosphere.Alternatively, suction tude 1 can be bellows.
Further, one end of quarter-wave long tube 2 is connected in suction tude 1, and quarter-wave long tube 2 is communicated with suction tude 1 inside.As shown in Figure 1, quarter-wave long tube 2 can be formed as one end sealing and the other end open wide hollow circular tube, the sealed end of quarter-wave long tube 2 is arranged away from suction tude 1, the open end of quarter-wave long tube 2 is connected with suction tude 1, be connected with the inside of suction tude 1 to make the inside of quarter-wave long tube 2, that is, the gas of suction tude 1 inside can flow in quarter-wave long tube 2, and the gas of quarter-wave long tube 2 inside also can flow in suction tude 1.
Thus, according to duct acoustics principle, a part of incident acoustic wave in suction tude 1 passes in quarter-wave long tube 2, the a part of incident acoustic wave passing to quarter-wave long tube 2 inside can be reflected back to suction tude 1 inside and form reflective sound wave, another part incident acoustic wave in suction tude 1 is propagated and is formed projection sound wave in suction tude 1, like this, at the jointing of suction tude 1 with quarter-wave long tube 2, because the reflective sound wave of some frequency in quarter-wave long tube 2 is contrary with the incident acoustic wave phase place in suction tude 1, thus two sound waves are cancelled out each other, to form the node of an acoustic pressure, or the amplitude of incident acoustic wave is reduced, thus reach the object of noise elimination, a part of acoustic reflection can return in quarter-wave long tube 2 when running into the inwall of quarter-wave long tube 2 in quarter-wave long tube 2 inside by another part incident acoustic wave passing to quarter-wave long tube 2 inside, also the effect of noise elimination can be reached.
Piston 3 is located in quarter-wave long tube 2 movably to change the connection length be connected with suction tude 1 of quarter-wave long tube 2.As shown in Figure 1, piston 3 is provided with in quarter-wave long tube 2, piston 3 can along the axially reciprocating of quarter-wave long tube 2, and the periphery wall of piston 3 can with the inner circle wall close contact of quarter-wave long tube 2, to reach the effect of sealing, thus in quarter-wave long tube 2, only have the space between piston 3 with suction tude 1 to be connected with suction tude 1, like this, when piston 3 moves towards the open end away from suction tude 1, quarter-wave long tube 2 becomes large with the length that is communicated with of suction tude 1, that is, the effective length of quarter-wave long tube 2 is elongated, when piston 3 is towards when the open end motion of suction tude 1, quarter-wave long tube 2 diminishes with the length that is communicated with of suction tude 1, that is, the effective length of quarter-wave long tube 2 diminishes.
Further, driving mechanism 4 is connected with piston 3, and actuator is connected with driving mechanism 4 and drives piston 3 mobile in quarter-wave long tube 2 with drive transmission device 4.As shown in Figure 1, driving mechanism 4 has initiative part (such as gear 42) hereinafter described and follower (such as movement rod 41) hereinafter described, wherein initiative part can coordinate to drive follower to move with follower, wherein, actuator is connected with initiative part, piston 3 is connected with follower, thus, when actuator drives initiative part motion, initiative part can drive follower to move simultaneously, and then follower can driven plunger 3 move, in brief, actuator can pass through the position of driving mechanism 4 regulating piston 3 in quarter-wave long tube 2, and then adjustment quarter-wave long tube 2 and suction tude 1 be communicated with length, that is, the effective length of quarter-wave long tube 2 can be adjusted.
Here, be understandable that, the frequency f of quarter-wave long tube 2 is: f=c/ (4 (L+8r/3 π)), wherein, c is the velocity of sound, L is the effective length of quarter-wave long tube 2, r is the radius of quarter-wave long tube 2, it can thus be appreciated that, when the radius r of quarter-wave long tube 2 is definite value, the frequency f of quarter-wave long tube 2 and the effective length L of quarter-wave long tube 2 are inverse ratio, that is, the effective length L of quarter-wave long tube 2 is longer, the frequency f of quarter-wave long tube 2 is less, the effective length L of quarter-wave long tube 2 is shorter, the frequency f of quarter-wave long tube 2 is larger.
In addition, it should be noted that, due to the raising along with engine speed, the flow velocity that motor sucks air increases, and intensity and the frequency of the pressure pulsation in suction tude 1 also strengthen thereupon, thus the induction noise of gas handling system strengthens with the raising of engine speed, when engine speed is reduced, the flow velocity that motor sucks air reduces, and intensity and the frequency of the pressure pulsation in suction tude 1 also decrease, thus the induction noise of gas handling system weakens with the reduction of engine speed.
Thus, when engine speed is higher, the frequency of induction noise is higher, can be turned down the effective length L of quarter-wave long tube 2, to increase the frequency f of quarter-wave long tube 2, to eliminate the higher induction noise of frequency pointedly by adjustment actuator; When the engine speed is lower, the frequency of induction noise is lower, can be tuned up the effective length L of quarter-wave long tube 2, to reduce the frequency f of quarter-wave long tube 2, to eliminate the lower induction noise of frequency pointedly by adjustment actuator.
Because the frequency of engine aspirating system noise is in continuous change, thus the suction tude assembly 100 of the embodiment of the present invention can according to the change of engine operating condition condition, the effective length of quarter-wave long tube 2 that especially regulates pointedly according to the rotation speed change of motor, can frequency of noise elimination scope to improve quarter-wave long tube 2, strengthen soundproof effect, improve the NVH performance of vehicle, thus improve the travelling comfort of vehicle.
According to the suction tude assembly 100 for vehicle motor gas handling system of the embodiment of the present invention, by adopting the position of actuator drive transmission device 4 regulating piston 3 in quarter-wave long tube 2, thus can adjust quarter-wave long tube 2 and suction tude 1 in real time be communicated with length, with pointedly and effectively improve induction noise problem.
In one embodiment of the invention, the sidewall of suction tude 1 is provided with outward extending extension part 11, as shown in Figure 1, the sidewall of suction tude 1 can be formed with the attachment hole run through along suction tude 1 radial direction, extension part 11 can along the edge of attachment hole, along suction tude 1 radial direction, extend towards the direction away from suction tude 1 central axis, to form the pipeline section of hollow, thus the inside of extension part 11 can be connected by attachment hole with the inside of suction tude 1.Preferably, suction tude 1 is one-body molded with extension part 11.
Further, quarter-wave long tube 2 is connected with extension part 11, and quarter-wave long tube 2 is communicated with suction tude 1 inside by extension part 11.As shown in Figure 1, the open end of quarter-wave long tube 2, namely one end of the contiguous suction tude 1 of quarter-wave long tube 2 can be linked together by the mode of grafting with one end away from suction tude 1 of extension part 11, thus the inside of quarter-wave long tube 2 can be connected with the inside of extension part 11, and be connected with the inside of suction tude 1 due to the inside of extension part 11, thus the inside of quarter-wave long tube 2 can be connected by the inside of extension part 11 with suction tude 1.
Alternatively, the inner circle wall of extension part 11 is formed with groove, quarter-wave long tube 2 is provided with the projection 21 with groove fit.As shown in Figure 1, extension part 11 can be formed as the hollow circular tube of both ends open substantially, groove can be formed towards away from the direction of extension part 11 central axis is recessed by the inner circle wall of one end away from suction tude 1 of extension part 11, preferably, groove can be formed as circular groove, correspondingly, the end face of one end of the contiguous suction tude 1 of quarter-wave long tube 2 can be provided with quarter-wave long tube 2 integrated protruding 21, protruding 21 can be formed as ring pipe substantially, and along the inner edge of quarter-wave long tube 2, direction towards suction tude 1 extends, wherein, the protruding periphery wall size of 21 and the inner circle wall size of groove match, thus during assembling, can insert in groove by protruding 21, be seated to make quarter-wave long tube 2 and extension part 11, and then be convenient to install, improve efficiency of assembling.Preferably, quarter-wave long tube 2 can adopt polypropylene material (also known as PP engineering plastics) to make.
With reference to Fig. 1, suction tude assembly 100 comprises further: clip 12, clip 12 to be set on extension part 11 and corresponding with groove, like this, during assembling, can first the projection 21 on quarter-wave long tube 2 be assemblied in groove, and then on the periphery wall of extension part 11 sheathed clip 12, ensure clip 12 in the radial direction of extension part 11 with groove, after projection 21 is corresponding, clip 12 is locked, thus by sheathed clip 12, effectively can improve the connection fixing of quarter-wave long tube 2 and extension part 11, that is, improve the connection fixing of quarter-wave long tube 2 and suction tude 1.Here, it should be noted that, structure and the using method of clip 12 are well known to the skilled person, and no longer describe in detail here.
In one embodiment of the invention, driving mechanism 4 can comprise: movement rod 41 and gear 42, the periphery wall of movement rod 41 has the first engaging tooth, movement rod 41 is connected with piston 3, the periphery wall of gear 42 has the second engaging tooth coordinated with the first engaging tooth, gear 42 coordinates with movement rod 41 to drive piston 3 to move.As shown in Figure 1, movement rod 41 can be formed as the round bar linearly extended substantially, and the periphery wall of movement rod 41 is formed with the first engaging tooth of coiled coil, the periphery wall of gear 42 is formed along its circumferential hoop around the second engaging tooth, first engaging tooth and the second engaging tooth can engage each other transmission, thus when gear 42 rotation positive and negative in initiative part, movement rod 41 linearly can move back and forth as driven member, and the center of rotation axis of gear 42 can with the central axis of the to-and-fro motion track of movement rod 41.
In brief, driving mechanism 4 is formed as similar Worm and worm-wheel gearing substantially, and movement rod 41 is formed as the shape of similar worm screw substantially, gear 42 is formed as the shape of worm gear substantially, by the kind of drive of similar worm and gear, movement rod 41 subordinate of similar worm screw is driven to move by the gear 42 of similar worm gear as driving link.Thus, the rotation of gear 42 and the movement of movement rod 41 can substantially linearly rule change, thus be convenient to control and adjustment.
Alternatively, actuator is stepper motor 5.As shown in Figure 1, the output shaft 51 of stepper motor 5 can through the center of gear 42, and with gear 42 secure fit, thus the output shaft 51 of stepper motor 5 can drive the gear 42 as initiative part to rotate, and then drives the movement rod 41 as follower to move along a straight line.
With reference to Fig. 1, gear 42 and stepper motor 5 are separately positioned on outside quarter-wave long tube 2, the bearing of trend of movement rod 41 can be identical with the axial direction of quarter-wave long tube 2, and one end of movement rod 41 can be passed the sealed end of quarter-wave long tube 2 and stretch into quarter-wave long tube 2 inside, the other end of movement rod 41 can be emerging in outside quarter-wave long tube 2, to engage with gear 42, the termination stretching into one end of quarter-wave long tube 2 of movement rod 41 can be fixed together with piston 3, such as piston 3 can be fixed on movement rod 41 by the hexagon head bolt 31 with plain washer, wherein piston 3 can adopt thermoplastic polyester elastomeric material (also known as TPEE material) to make, to ensure the sealing leakproofness of piston 3 and quarter-wave long tube 2 inner circle wall, raising piston 3 regulates reliability during quarter-wave long tube 2 effective length.Like this, what stepper motor 5 can regulate quarter-wave long tube 2 and suction tude 1 by gear 42 and movement rod 41 is communicated with length.
Here, it should be noted that, when quarter-wave long tube 2 and suction tude 1 by protruding 21, groove coordinate and mode that clip 12 is fastening links together time, can so that the installation and removal of movement rod 41 and piston 3, effectively to improve assembling and removal efficiency.Certainly, the invention is not restricted to, quarter-wave long tube 2 and suction tude 1 can also link together by other means.
(scheme not shown) in another embodiment of the present invention, driving mechanism can also be lead-screw drive mechanism, particularly, lead-screw drive mechanism can comprise: the rotating block of leading screw and hollow, the periphery wall of leading screw has outside thread, leading screw is connected with piston 3, has the internal thread coordinated with outside thread in rotating block, and rotating block coordinates to drive piston 3 to move with leading screw.
Particularly, leading screw can be formed as the round bar linearly extended substantially, and the periphery wall of leading screw is formed with the outside thread of coiled coil, the inside of rotating block limits cavity, and the inner circle wall of cavity is formed with the internal thread of coiled coil, outside thread and internal thread can be threaded transmission mutually, thus when rotating block rotation positive and negative in initiative part, leading screw linearly can move back and forth as driven member, and the center of rotation axis of rotating block can overlap with the center line of the to-and-fro motion track of leading screw.
Like this, when actuator is stepper motor 5, bevel gear transmission can be set between the output shaft 51 of stepper motor 5 and rotating block, to change the direction of transfer of power, thus be convenient to the output shaft 51 of stepper motor 5 and the connection of rotating block, guarantee that the output shaft 51 of stepper motor 5 can drive the rotating block as initiative part to rotate, and then drive the leading screw as follower to move along a straight line.
Rotating block and stepper motor 5 are separately positioned on outside quarter-wave long tube 2, the bearing of trend of leading screw can be identical with the axial direction of quarter-wave long tube 2, and one end of leading screw can be passed the sealed end of quarter-wave long tube 2 and stretch into quarter-wave long tube 2 inside, the other end of leading screw can be emerging in outside quarter-wave long tube 2, to coordinate with rotating block, the termination stretching into one end of quarter-wave long tube 2 of leading screw can be fixed together with piston 3.Like this, what stepper motor 5 can regulate quarter-wave long tube 2 and suction tude 1 by bevel gear transmission and lead-screw drive mechanism driven plunger 3 is communicated with length.
Certainly, the present invention is not limited thereto, in some embodiments more of the present invention, driving mechanism can also be pinion and rack or cam follower mechanism etc. (scheming not shown).Wherein, pinion and rack can comprise mate gear and coordinate tooth bar, wherein mate gear can be connected with actuator, such as stepper motor 5 as initiative part, coordinate tooth bar can be connected with piston 3 as driven member, thus actuator can regulate quarter-wave long tube 2 and suction tude 1 by pinion and rack driven plunger 3 be communicated with length.Wherein, cam follower mechanism can comprise cam and push rod, its cam can be connected with actuator, such as stepper motor 5 as initiative part, push rod can be connected with piston 3 as driven member, thus actuator can regulate quarter-wave long tube 2 and suction tude 1 by cam follower mechanism driven plunger 3 be communicated with length.
Here, it should be noted that, structure and the working principle of pinion and rack and cam follower mechanism are well known to those skilled in the art, and no longer describe in detail here.In addition, actuator can also be arranged according to actual requirement, and to meet actual requirement better, such as actuator can also be the motor of other types beyond stepper motor 5.
In one embodiment of the invention, suction tude assembly 100 comprises further: speed probe 6 and single-chip microcomputer 7, and speed probe 6 is connected the rotating speed of monitoring motor with motor, and single-chip microcomputer 7 is connected with actuator respectively with speed probe 6.Such as in the example of fig. 1 and 2, speed probe 6 can be connected with single-chip microcomputer 7 by wire 9, single-chip microcomputer 7 can pass through wire 9 and actuator, such as stepper motor 5 is connected, actuator is connected with piston 3 by driving mechanism 4, thus speed probe 6 can Information Monitoring flow to single-chip microcomputer 7, single-chip microcomputer 7 can judge and control the working state of actuator, to pass through the position of driving mechanism 4 regulating piston 3 in quarter-wave long tube 2, realize the adjustment being communicated with length of quarter-wave long tube 2 and suction tude 1, that is, by arranging driving mechanism 4, actuator, speed probe 6 and single-chip microcomputer 7 can realize the automatic control and adjustment of piston 3.In addition, it should be noted that, speed probe 6, single-chip microcomputer 7 and actuator can be connected to power supply 8 respectively, to ensure its respective normal work.
Here, it should be noted that, speed probe 6 is crankshaft rotational speed sensor, for the rotating speed of monitoring engine crankshaft, namely monitor the rotating speed of motor, generally, in vehicle, be equipped with crankshaft rotational speed sensor, thus directly single-chip microcomputer 7 can be connected to existing speed probe 6 on vehicle, certainly, the present invention is not limited thereto, can also speed probe 6 be additionally set, to be connected with single-chip microcomputer 7 independently, thus the monitoring of engine speed can be realized equally.In addition, single-chip microcomputer 7 can also by vehicle itself with the ECU (abbreviation of Electronic Control Unit, i.e. vehicle-mounted computer) substitute, that is, speed probe 6 and actuator can be connected to ECU respectively, and relevant program is set in ECU, thus can realize the automatic control and adjustment of piston 3 equally.
Below, with reference to Fig. 1, the concise and to the point working procedure described according to the suction tude assembly 100 of the embodiment of the present invention.
When engine speed improves, noise frequency in suction tude 1 strengthens thereupon, now, single-chip microcomputer 7 receives the information that speed probe 6 transmits, single-chip microcomputer 7 exports negative voltage control step motor 5 and reverses, stepper motor 5 is by gear 42, the position of movement rod 41 regulating piston 3 in quarter-wave long tube 2, particularly, movement rod 41 drives piston 3 to move towards near the direction of suction tude 1, thus the effective length of quarter-wave long tube 2 is reduced, now, the eliminable noise frequency of quarter-wave long tube 2 raises, and then quarter-wave long tube 2 can eliminate the high-frequency noise produced in gas handling system effectively.
When engine speed is reduced, noise frequency in suction tude 1 weakens thereupon, now, single-chip microcomputer 7 receives the information that speed probe 6 transmits, single-chip microcomputer 7 exports positive voltage control step motor 5 and rotates forward, stepper motor 5 is by gear 42, the position of movement rod 41 regulating piston 3 in quarter-wave long tube 2, particularly, movement rod 41 drives piston 3 to move towards the direction away from suction tude 1, thus the effective length of quarter-wave long tube 2 is increased, now, the eliminable noise frequency of quarter-wave long tube 2 reduces, and then quarter-wave long tube 2 can eliminate the low-frequency noise produced in gas handling system effectively.
In sum, the size of engine speed monitored by speed probe 6, single-chip microcomputer 7 can regulate the effective length of quarter-wave long tube 2 by controlling actuator, driving mechanism 4 and piston 3, like this, can according to the height of engine speed, realize the automatic adjustment of quarter-wave long tube 2 frequency, with pointed and more effectively improve induction noise problem.
The vehicle of embodiment according to a second aspect of the present invention, comprises the suction tude assembly 100 for vehicle motor gas handling system according to the above-mentioned first aspect embodiment of the present invention.
According to the vehicle of the embodiment of the present invention other form and operation be all known for those of ordinary skills, be not described in detail here.
According to the vehicle of the embodiment of the present invention, by arranging the suction tude assembly 100 for vehicle motor gas handling system of above-mentioned first aspect embodiment, thus improve the overall performance of vehicle.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " interior ", " outward ", " radial direction ", " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection, can also be communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1., for a suction tude assembly for vehicle motor gas handling system, it is characterized in that, comprising:
Suction tude;
Quarter-wave long tube, one end of described quarter-wave long tube is connected in described suction tude, and described quarter-wave long tube is communicated with described suction tude inside;
Piston, described piston is located in described quarter-wave long tube movably to change the connection length be communicated with described suction tude of described quarter-wave long tube;
Driving mechanism, described driving mechanism is connected with described piston; And
Actuator, described actuator is connected with described driving mechanism to drive described driving mechanism to drive described piston at described quarter wavelength in-pipe.
2. the suction tude assembly for vehicle motor gas handling system according to claim 1, it is characterized in that, described driving mechanism comprises:
Movement rod, the periphery wall of described movement rod has the first engaging tooth, and described movement rod is connected with described piston; With
Gear, the periphery wall of described gear has the second engaging tooth coordinated with described first engaging tooth, and described gear coordinates with described movement rod to drive described piston to move.
3. the suction tude assembly for vehicle motor gas handling system according to claim 1, it is characterized in that, described driving mechanism comprises:
Leading screw, the periphery wall of described leading screw has outside thread, and described leading screw is connected with described piston; With
The rotating block of hollow, has the internal thread coordinated with described outside thread in described rotating block, described rotating block coordinates with described leading screw to drive described piston to move.
4. the suction tude assembly for vehicle motor gas handling system according to claim 1, is characterized in that, described driving mechanism is pinion and rack or cam follower mechanism.
5. the suction tude assembly for vehicle motor gas handling system according to claim 1, is characterized in that, comprise further:
Speed probe, described speed probe is connected the rotating speed of monitoring described motor with described motor; With
Single-chip microcomputer, described single-chip microcomputer is connected with described actuator with described speed probe.
6. the suction tude assembly for vehicle motor gas handling system according to claim 1, it is characterized in that, the sidewall of described suction tude is provided with outward extending extension part, wherein said quarter-wave long tube is connected with described extension part, and described quarter-wave long tube is communicated with described suction tude inside by described extension part.
7. the suction tude assembly for vehicle motor gas handling system according to claim 6, is characterized in that, the inner circle wall of described extension part is formed with groove, and described quarter-wave long tube is provided with the projection with described groove fit.
8. the suction tude assembly for vehicle motor gas handling system according to claim 7, is characterized in that, comprise further:
Clip, described hoop sleeve to be located on described extension part and corresponding with described groove.
9. the suction tude assembly for vehicle motor gas handling system according to any one of claim 1-8, is characterized in that, described actuator is stepper motor.
10. a vehicle, is characterized in that, comprises the suction tude assembly for vehicle motor gas handling system according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690525.2A CN104832327A (en) | 2014-11-25 | 2014-11-25 | Air inlet pipe assembly for vehicle engine air inlet system and vehicle adopting air inlet pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410690525.2A CN104832327A (en) | 2014-11-25 | 2014-11-25 | Air inlet pipe assembly for vehicle engine air inlet system and vehicle adopting air inlet pipe assembly |
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|---|---|
| CN104832327A true CN104832327A (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410690525.2A Pending CN104832327A (en) | 2014-11-25 | 2014-11-25 | Air inlet pipe assembly for vehicle engine air inlet system and vehicle adopting air inlet pipe assembly |
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| Country | Link |
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| CN (1) | CN104832327A (en) |
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| CN106640277A (en) * | 2015-11-02 | 2017-05-10 | 北汽福田汽车股份有限公司 | Silencer assembly, and air inlet system, exhaust system and vehicle with same |
| CN112211761A (en) * | 2020-10-10 | 2021-01-12 | 安徽江淮汽车集团股份有限公司 | Adjustable 1/4 wave tube, method and control system |
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