CN102644531A - Resonant system - Google Patents
Resonant system Download PDFInfo
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- CN102644531A CN102644531A CN201110042641XA CN201110042641A CN102644531A CN 102644531 A CN102644531 A CN 102644531A CN 201110042641X A CN201110042641X A CN 201110042641XA CN 201110042641 A CN201110042641 A CN 201110042641A CN 102644531 A CN102644531 A CN 102644531A
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- resonator system
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- 238000010276 construction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 208000002925 dental caries Diseases 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1261—Helmholtz resonators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
- F02M35/1266—Intake silencers ; Sound modulation, transmission or amplification using resonance comprising multiple chambers or compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/14—Combined air cleaners and silencers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to a resonant system. The invention relates to a device for a gas inlet system, wherein the device comprises a shell and a plugged connection part; the shell is provided with a structure the interior of which is a cavity; an opening is arranged at a first end part of the shell; the plugged connection part can be inserted into the cavity of the shell through the opening in a shape matched manner; the shell is provided with a first gas guide pipe; the plugged connection part comprises a second gas guide pipe; the second gas guide pipe is provided with the first end part and a second end part; a first lateral plate is close to a first end part of the second gas guide pipe; and the opening can be hermetically covered by the first lateral plate; furthermore, the first gas guide pipe or a gas guide hole and the second gas guide pipe commonly form a gas inlet pipeline through which gas can flow in or out. The resonant system disclosed by the invention has the advantages of being convenient for processing and simple for assembly.
Description
[technical field]
The present invention relates to a kind of vehicle noise reducing device, especially, the present invention relates to a kind of being applied in the vehicle intake system in order to reduce the resonator system of engine charge noise.
[background technique]
At present, vehicle is dissolved in the life of ordinary family more and more at large.People also pay attention to all the more the noise and the quality of vibration (NVH) of car load.The gas handling system noise is one of main source of internal car noise.Engine aspirating system mainly includes air-strainer and intake manifold, and wherein the air that is mainly used in getting into motor of air-strainer filters, to remove airborne impurity.
The naturally aspirated engine induction noise is that the pressure surge that is produced by intake valve periodicity open and close is formed.Piston is done the caused charge pulsation noise of variable motion when mainly comprising IO Intake Valve Opens, the air column resonance noise during IC Intake Valve Closes in the admission line, and the eddy current crack that produces during airflow passes intake valve annular space.
A supercharged engine induction noise part is that pressurized machine produces when high speed rotating, comprises that mainly the friction of blade and air causes the aerodynamic noise that air agitation causes, the noise that the vibration that the uneven horizontal characteristic of rotary system causes causes; Another part is that periodically open and close and the formed noise of pressure surge that produces are delivered to the outside through pressurized machine and cause intake valve.The gas handling system noise is except having the considerable influence through noise vehicle, or the main source of internal car noise, can have influence on the riding comfort of vehicle.
Just so, in gas handling system, be provided with the resonator that is used for weakening inflow noise and vibration in the prior art usually.This resonator can for example be arranged on the upper reaches of air filter near the air filter setting, and just the inflow side of filtered air is not located, and perhaps is arranged on the downstream of air filter, the place, outflow side of the air after just filtering.Usually adopt the resistance resonator in the gas handling system, when its principle is sound wave process resonator, utilize the reflection superimposed characteristics of sound wave, a part of acoustic energy is reflected back toward sound source, makes to transmit the acoustic energy minimizing.Wherein, resonator has multiple way of realization, can or be porous resonator etc. for Helmholtz resonator, 1/4 wavelength pipe for example.
The U. S. Patent numbering US11/625902 of GM Global Technology Operation provides a kind of resonator, and this resonator is single Helmholtz resonator.This resonator has the two states that comprises starting state and dormant state.When starting state, the Helmholtz resonator can operate in the decay pressure surge of air stream in the path, on the contrary when dormant state, and the resonator pressure surge of air stream in the path that do not decline.Wherein in housing, be provided with the first axle sleeve element of confirming at least one volumes and the second axle sleeve element that is arranged in the institute family first axle sleeve element basically coaxially.Especially, the second axle sleeve element optionally and changeably can switch with respect to the first axle sleeve element between the two positions.Further be dependent on accompanying drawing, the resonator that this patent provides is merely the Helmholtz resonator, and there is certain defective in the noise under a plurality of different frequencies of reduction, and its complex structure, processing difficulties.
Further; Chinese patent publication number CN101263297A discloses a kind of resonator that is used for the gas handling system of automobile; It has housing and at least one resonator cavity that is surrounded by housing; At least one air inlet that wherein in said housing, is provided for said resonator cavity and at least one outlet, wherein, the air outlet slit of said resonator cavity be simultaneously additional unit, the intakeport of air compressor particularly.In this patent application, housing combines through welding or molded mode after being divided into a plurality of parts.In addition, for the ease of processing this resonator, the different resonant cavitys of resonator flow into and the direction that flows out is arranged along gas, for along airflow direction circumferentially for, the layout of resonant cavity is difficulty very.
One Chinese patent application for example also discloses dissimilar resonators respectively among application number CN20420105656.1, CN20920186733.3, CN2052067680.5, the CN2052036309.2 in addition.But these resonators otherwise be the resonator of single chamber, can not weaken the noise under the different frequency effectively, or its shell construction layout has been limited to the layout in internal resonance chamber.
[summary of the invention]
One object of the present invention is, a kind of novel resonator system is provided, and this resonator system can weaken inflow noise effectively.
Of the present inventionly advance a purpose and be that a kind of resonator system is provided, and this resonator system is easy to process, assembling is convenient.
Further, resonator system of the present invention can be in housing along inlet stream to around a plurality of resonant cavitys of circumferential arrangement.
Above-mentioned purpose of the present invention and other purposes realize through following technological scheme:
The present invention provides a kind of resonator system that is used for engine aspirating system, and it comprises housing and grafting part, wherein
Said housing has the inner structure of cavity that be, is provided with opening at the first end of said housing, and said grafting part can be inserted in the cavity of said housing to form fit through said opening, thus in said housing at least one resonant cavity of formation;
Said housing has first air pipe or the gas port that is used for the gas inflow or flows out at its second end,
Said cutting graftage part branch comprises second air pipe, and said second air pipe has first end and the second end,
Said second air pipe is provided with first side plate, and said first side plate is close to the first end of said second air pipe and suitable with said opening,
Wherein, when said grafting part was inserted in the said housing fully, said first side plate can cover said opening hermetically, and said first air pipe or gas port are formed for said second air pipe jointly, and gas flows into or the admission line of outflow.
Resonator system provided by the invention, preferably, said housing and said grafting partly adopt plastics to process, and said housing and said grafting part are respectively through the injection molding forming method unitary moulding.
Resonator system provided by the invention; Preferably; Said first side plate so is provided with to the distance of the second end of said second air pipe; Make that the second end of said second air pipe just can contact with said first air pipe or gas port fully when said first side plate is fixedly connected with said opening.
Resonator system provided by the invention preferably, is provided with fixed connection apparatus on said first side plate and said opening, make said first side plate can be fixedly connected with said opening.
Resonator system provided by the invention, preferably, said fixed connection apparatus is buckle structure, screw connection structure or welded structure.
Resonator system provided by the invention, preferably, the internal diameter of said second air pipe is identical with the internal diameter and the external diameter of said first air pipe with the size of external diameter.
Resonator system provided by the invention, preferably, said at least one resonant cavity is along axial, the circumferential or radial arrangement of said second air pipe.
Resonator system provided by the invention; Preferably; Direction along the first end of said second air pipe to said the second end upwards be provided with second side plate in the said second air pipe week, and the cavity of said housing has been arranged first chamber and second chamber along direction of insertion.
Resonator system provided by the invention, preferably, the area of said second side plate is slightly less than said first side plate, and the radial cross section of said second chamber is slightly less than the corresponding radial cross section of said first chamber.
Resonator system provided by the invention, preferably, the junction of said first chamber and said second chamber is provided with the first step face, and wherein said second side plate adapts to said first step face.
Resonator system provided by the invention; Preferably; Said second side plate and said first step are looked like this and are set up; Make that said second side plate just is resisted against on the said first step face, thereby said first chamber and second chamber are separated when said grafting part is inserted in the said housing fully.
Resonator system provided by the invention, preferably, the direction along said first end to said the second end upwards be provided with the 3rd side plate in the said second air pipe week, and the chamber of said housing also has been arranged the 3rd chamber along direction of insertion.
Resonator system provided by the invention, preferably, the area of said the 3rd side plate is slightly less than said second side plate, and the radial cross section of said the 3rd chamber is slightly less than the corresponding radial cross section of said second chamber.
Resonator system provided by the invention, preferably, the junction of said second chamber and said the 3rd chamber is provided with the second step face, and wherein said the 3rd side plate adapts to said second step face.
Resonator system provided by the invention, preferably, said the 3rd side plate and said second step are looked like this and are set up, and make that said the 3rd side plate just is resisted against on the said second step face when said grafting part is inserted in the said housing fully.
Resonator system provided by the invention, preferably, said first side plate, second side plate and the 3rd side plate are arranged in parallel, and said first side plate, second side plate and the 3rd side plate further are set to perpendicular to said second air pipe.
Resonator system provided by the invention preferably, is provided with first resonant cavity in said first chamber, said first resonant cavity is arranged on said second air pipe between said first side plate and said second side plate.
Resonator system provided by the invention; Preferably; Said first resonant cavity is the catheter configurations of both ends open; Its first end is connected with said second air pipe, and when said grafting part was inserted in the said housing, second end of said first resonant cavity just was resisted against on the respective inner surfaces of said housing.
Resonator system provided by the invention, preferably, said first resonant cavity is the catheter configurations of an end opening, and first end of said first resonant cavity is an open construction, and it is connected with said second air pipe, and second end of said first resonant cavity is a seal construction.
Resonator system provided by the invention, preferably, said first resonant cavity is configured to 1/4 wavelength pipe, and said 1/4 wavelength pipe is set at and offsets frequency is the noise of 600-700Hz.
Resonator system provided by the invention preferably, is provided with second resonant cavity in said first chamber, said second resonant cavity is arranged on said second air pipe along the opposite direction of said first resonant cavity.
Resonator system provided by the invention; Preferably; Said second resonant cavity is the catheter configurations of both ends open; Its first end is connected with said second air pipe, and when said grafting part was inserted in the said housing, second end of said second resonant cavity just was resisted against on the respective inner surfaces of said housing.
Resonator system provided by the invention, preferably, said second resonant cavity is the catheter configurations of an end opening, and first end of said second resonant cavity is an open construction, and it is connected with said second air pipe, and second end of said second resonant cavity is a seal construction.
Resonator system provided by the invention, preferably, said second resonant cavity is configured to 1/4 wavelength pipe, and said 1/4 wavelength pipe is set at and offsets frequency is the noise of 800-1000Hz.
Resonator system provided by the invention; Preferably; Said first resonant cavity and the second resonant cavity coaxial arrangement, and said first resonant cavity and second resonant cavity have identical internal diameter and external diameter size, and said first resonant cavity and second resonant cavity are parallel to said first side plate structure.
Resonator system provided by the invention; Preferably; In said first chamber, be provided with the 3rd resonant cavity and the 4th resonant cavity; In said first chamber, be provided with first dividing plate that is connected with said second side plate with said first side plate, said first dividing plate is separated said the 3rd resonant cavity and the 4th resonant cavity with said first chamber.
Resonator system provided by the invention preferably, is respectively equipped with opening that is communicated to said the 3rd resonant cavity and the opening that is communicated to said the 4th resonant cavity on said second air pipe.
Resonator system provided by the invention; Preferably; Said the 3rd resonant cavity and the 4th resonant cavity are configured to the Helmholtz resonant cavity respectively; Wherein said the 3rd resonant cavity is set at and offsets frequency is the noise of 400-600Hz, and said the 4th resonant cavity is set at and offsets frequency is the noise of 100-200Hz.
Resonator system provided by the invention, preferably, said first dividing plate is set to be orthogonal to said first side plate and said second side plate that is parallel to each other.
Resonator system provided by the invention; Preferably; In said second chamber, be provided with the 5th resonant cavity and the 6th resonant cavity; In said second chamber, be provided with the second partition that is connected with said the 3rd side plate with said second side plate along substantially horizontal, said second partition is divided into the 5th resonant cavity and the 6th resonant cavity with said second chamber.
Resonator system provided by the invention preferably, is provided with first connecting tube that is connected to said the 5th resonant cavity on said second air pipe.
Resonator system provided by the invention, preferably, said the 5th resonant cavity is constructed to the Helmholtz resonant cavity, and it is arranged at and offsets frequency is the noise of 100-150Hz.
Resonator system provided by the invention preferably, is provided with first porous that is connected to said the 6th resonant cavity on said second air pipe.
Resonator system provided by the invention, preferably, said the 6th resonant cavity is configured to the porous resonant cavity, and it is arranged at and offsets frequency is the noise of 800-1200Hz.
Resonator system provided by the invention preferably, is provided with the 3rd dividing plate and the 4th dividing plate that said the 3rd chamber are divided into the 7th resonant cavity spaced apart from each other, the 8th resonant cavity, the 9th resonant cavity and the tenth resonant cavity in said the 3rd chamber.
Resonator system provided by the invention; Preferably; On said second air pipe, be provided with second connecting tube that is connected to said the 7th resonant cavity and the 8th resonant cavity; Said the 4th dividing plate is separated into first portion and second portion with said second connecting tube, and the first portion of wherein said second connecting tube is connected to said the 7th resonant cavity, and the second portion of said second connecting tube is connected to said the 8th resonant cavity.
Resonator system provided by the invention; Preferably; Said the 7th resonant cavity and the 8th resonant cavity are configured to the Helmholtz resonant cavity respectively, and wherein said the 7th resonant cavity is arranged at and offsets frequency is the noise of 150-300Hz, and said the 8th resonant cavity is arranged at and offsets frequency is the noise of 200-350Hz.
Resonator system provided by the invention preferably, is provided with second porous and the 3rd porous that are connected respectively to said the 9th resonant cavity and the tenth resonant cavity on said second air pipe.
Resonator system provided by the invention, preferably, said the 9th resonant cavity and the tenth resonant cavity are constructed to the porous resonant cavity respectively, and it is arranged at respectively and offsets frequency is that noise and the frequency of 1500-2000Hz is the noise of 1200-1500Hz.
The present invention also provides a kind of air-strainer, and wherein aforesaid resonator system is arranged in the upper reaches or the downstream of said air-strainer, and perhaps integral body is integrated in the said air-strainer.
In addition, any reasonable combination of technique scheme all should be the present invention's technology contents required for protection.
Understand easily, resonator system processing of the present invention is simple, easy for installation, in addition can be around the resonant cavity of axially, circumferentially with radially arranging the different frequency noises of a plurality of weakenings easily of said admission line.
[description of drawings]
Below in conjunction with accompanying drawing, preferred implementation of the present invention is carried out in detail or preferred the description, wherein,
Fig. 1 is the perspective illustration of the resonator system under a kind of preferred implementation of the present invention;
Fig. 2 is the exploded view of the present invention's resonator system shown in Figure 1;
Fig. 3 is the structural representation along first chamber of the resonator system of the present invention's A-A cross section intercepting shown in Figure 1;
Fig. 4 is the structural representation along second chamber of the resonator system of the present invention's B-B cross section intercepting shown in Figure 1; And
Fig. 5 is the structural representation along the 3rd chamber of the resonator system of the present invention's C-C cross section intercepting shown in Figure 1.
[embodiment]
Understand easily, according to technological scheme of the present invention, do not changing under the connotation of the present invention, one of ordinary skill in the art can propose a plurality of mode of structure of the present invention.Therefore following embodiment and accompanying drawing only are to the specifying of technological scheme of the present invention, and should not be regarded as of the present invention all or be regarded as qualification or restriction to technological scheme of the present invention.
In addition, if used term " upper reaches ", " downstream " among the present invention, the direction that the direction of its expression flows into for gas in gas handling system is in " upper reaches " of flowing gas or is in " downstream ".This is conspicuous for a person skilled in the art.And " on ", D score, " left side ", " right side " direction all is dependent on attaches the orientation shown in Fig. 1 and 2.
Following reference Fig. 1 of the present invention and Fig. 2, it shows the structural representation of resonator system of the present invention.Wherein, resonator system 1 of the present invention mainly includes housing 10 and the grafting part 20 that is connected with housing 10 form fit.Said housing 10 is processed with the said grafting part 20 preferred plastics that adopt.Further preferably, said housing 10 passes through the independent unitary moulding of injection molding forming method respectively with said grafting part 20.Said resonator system 1 can be arranged on the upstream end of air-strainer according to the practical layout situation of engine bin or be installed in the downstream part of air-strainer, and perhaps integral body is integrated on the said air-strainer.
As shown in Figure 2, housing 10 has the first end 101 and the second end 102 along gas flow direction, right-hand end just illustrated in figures 1 and 2 and left end.101 places are provided with opening 103 at first end shown in Figure 2.In addition, said housing 10 has the internal cavity structures that is used to hold said grafting part 20.Said grafting part 20 can be inserted in the chamber of said housing 10 to form fit through this opening 101.Certainly, those skilled in the art is appreciated that also that in other mode of executions of the present invention housing 10 also can be provided with opening at upside shown in Figure 2 or downside place, and said grafting part 20 is inserted in the cavity of housing through this opening shape ordinatedly.Just the processing for housing 10 and grafting part 20 is such convenient unlike embodiment shown in Figure 2 under this mode of execution.
In Fig. 1 and Fig. 2, said housing 10 is provided with at its second end 102 and is used for first air pipe 110 that gas flows into or flows out.Said first air pipe 110 is connected with the cavity of said housing 10.When gas when the left side of said resonator system 1 flows into to the right, said first air pipe 110 is an ingress pipe, said first air pipe 110 is a delivery line under reverse situation.
Certainly, those skilled in the art is appreciated that also first air pipe 110 also can directly be configured to the gas port structure at said housing 10 the second ends 102 places here.
Said grafting part 20 comprises second air pipe 210, and said second air pipe 210 has first end 211 and the second end 212.Preferably, the size of the internal diameter of said second air pipe 210 and external diameter is identical with the internal diameter and the external diameter of said first air pipe 110.First side plate 220 is close to said first end 211 and is arranged on said second air pipe 210.The structure of said first side plate 220 and said opening 103 are suitable, make that said first side plate 220 can cover said opening 103 hermetically when said grafting part 20 is inserted in the said housing 10 fully.Preferably, on said first side plate 220 and said opening 103, be provided with fixed connection apparatus, make said first side plate 220 can be fixedly connected with said opening 103.This fixed connection apparatus can be buckle structure, screw connection structure, welded structure or other similar structure, and this is conspicuous on the basis of reading specification of the present invention for a person skilled in the art, therefore seldom gives unnecessary details.Further preferably, when they are fixedly connected, also can further guarantee being tightly connected between said first side plate 220 and the said opening 103, thereby avoid extraneous gas to circulate mutually with the gas of enclosure interior through for example Stamping Steel Ribbon.
When said housing 10 was in the mounting point with said grafting part 20, said first air pipe 110 or gas port and said second air pipe 210 were formed for the admission line that gas flows into or flows out jointly.In preferred implementation of the present invention; Said first side plate 220 should so be provided with to the distance of the second end 212 of said second air pipe 210; Make when said first side plate 220 is fixedly connected with said opening 103; Said the second end 212 can just contact with said first air pipe 110 fully, and is as shown in Figure 1.
The present invention is housing 10 and the 20 independent injection moulding manufacturings respectively of grafting part, and makes said grafting part 20 can be inserted in the said housing 10, thus the easy manufacturing and the assembling of resonator system of the present invention.In addition, through mode like this, can on grafting part 20 and said housing 10, perhaps a plurality of resonant cavitys be set radially as required, thereby greater flexibility and possibility be provided for various types of resonator design along axial, circumferential.
When said first side plate 220 sealed with said opening, said grafting part 20 formed at least one resonant cavity with the inwall of said housing.Said at least one resonant cavity is used for cutting down the vibration frequency that gets into air, thereby reduces inflow noise.In a preferred implementation of the present invention, the direction along said first end 211 to said the second end 212 except said first side plate 210, upwards also is provided with second side plate 230 in said 210 weeks of second air pipe.Be inserted in the chamber of said housing 10 for the ease of said grafting part 20, preferably, the area of said second side plate 230 is slightly less than said first side plate 220.Correspondingly, the chamber of said housing 10 also is provided with first chamber 120 and second chamber 130 along direction of insertion, and the radial cross section of wherein said second chamber 130 is slightly less than the corresponding radial cross section of said first chamber 120.Said first chamber 120 is provided with first step face 121 with the junction of said second chamber 130, and wherein said second side plate 230 adapts to said first step face 121, makes said second side plate 230 can be resisted against on the said first step face 121.Further preferably, said second side plate 230 so is set up with said first step face 121, makes that said second side plate 230 just is resisted against on the said first step face 121 when said grafting part 20 is inserted in the said housing 10 fully.
In further preferred implementation of the present invention, the direction along said first end 211 to said the second end 212 except said first side plate 220 and said second side plate 230, upwards also is provided with the 3rd side plates 240 in said 210 weeks of second air pipe.Be inserted in the chamber of said housing 10 for the ease of said grafting part 20, preferably, the area of said the 3rd side plate 240 is slightly less than said second side plate 230.Correspondingly, the chamber of said housing 10 except being provided with first chamber 120 and second chamber 130, also is provided with the 3rd chamber 140 along direction of insertion, and the radial cross section of wherein said the 3rd chamber 140 is slightly less than the corresponding radial cross section of said the 3rd chamber 130.Said second chamber 130 is provided with second step face 131 with the junction of said the 3rd chamber 140, and wherein said the 3rd side plate 240 adapts to said second step face 131, makes said the 3rd side plate 240 can be resisted against on the said second step face 131.Further preferably, said the 3rd side plate 240 so is set up with said second step face 131, makes that said the 3rd side plate 240 just is resisted against on the said second step face 131 when said grafting part 20 is inserted in the said housing 10 fully.
Further preferably; Said first side plate 220, second side plate 230 and the 3rd side plate 240 are arranged in parallel; And further be preferably and the 210 vertical settings of said second air pipe; Thereby more convenient integral molded plastic in said grafting part 20 is shaped, and this set of said grafting part 20 is provided with the working life that more can guarantee said grafting part 20 than other.
This shows that through said first side plate 220, second side plate 230 and the 3rd side plate 240, the chamber of said housing 10 is separated into three first chamber 120, second chamber 130 and the 3rd chambers 140 that are spaced apart from each other.Certainly, those skilled in the art will appreciate that except this preferred implementation that the chamber of said housing 10 can be separated into two chambers perhaps more than three chamber, this depends on the actual demand of the noise that weakens different frequency.
Below further combine Fig. 3 of the present invention-Fig. 5 explanation that the preferred implementation of a plurality of different resonant cavitys is set in first chamber 120, second chamber 130 and the 3rd chamber 140.
Fig. 3 shows the sectional view of said first chamber 120.Wherein, shown in Fig. 2 and 3, between said first side plate 220 and said second side plate 230, on said second air pipe 210, be provided with first resonant cavity 123 that is preferably vertical extension.Preferably; Said first resonant cavity 123 is the catheter configurations of both ends open; Its first end is connected with said second air pipe 210 inside, and when said grafting part 20 was inserted in the said housing 10, second end of said first resonant cavity 123 just was resisted against on the respective inner surfaces of said housing.In another preferred implementation; Said first resonant cavity 123 is the catheter configurations of an end opening; First end of said first resonant cavity 123 is an open construction, and it is connected with said second air pipe 210 inside, and second end of said first resonant cavity 123 is a seal construction.
Further preferably, said first resonant cavity 123 is configured to 1/4 wavelength pipe, and said 1/4 wavelength pipe for example is further used for offsetting that frequency is the noise of 600-700Hz.The concrete mode of this realization can be through regulating setting to the pipe range of 1/4 wavelength pipe, diameter etc.
In further preferred embodiment, on said second air pipe 210, be provided with second resonant cavity 124 along the opposite direction of said first resonant cavity 123.Preferably; Said second resonant cavity 124 is the catheter configurations of both ends open; Its first end is connected with said second air pipe 210 inside, and when said grafting part 20 was inserted in the said housing 10, second end of said second resonant cavity 124 just was resisted against on the respective inner surfaces of said housing.In another preferred implementation; Said second resonant cavity 124 is the catheter configurations of an end opening; First end of said second resonant cavity 124 is an open construction, and it is connected with said second air pipe 210 inside, and second end of said second resonant cavity 124 is a seal construction.Equally further preferably, said second resonant cavity 124 is configured to 1/4 wavelength pipe, and said 1/4 wavelength pipe for example is further used for offsetting that frequency is the noise of 800-1000Hz.
In further preferred implementation of the present invention, said first resonant cavity 123 and second resonant cavity, 124 coaxial arrangement, and said first resonant cavity 123 has identical internal diameter and external diameter size with second resonant cavity 124.
In addition preferably, said first resonant cavity 123 and second resonant cavity 124 are parallel to said first side plate 220 and said second side plate, 230 structures.
In addition; Vertical direction shown in the figure is provided with first dividing plate 127 that is connected with said second side plate 230 with said first side plate 220; Said first dividing plate 127 is separated into two other resonant cavity with said first chamber 120, is respectively the 3rd resonant cavity 125 and the 4th resonant cavity 126.Wherein, on said second air pipe 210, be respectively equipped with opening 128 that is communicated to said the 3rd resonant cavity 125 and the opening 129 that is communicated to said the 4th resonant cavity 126.Preferably; Said the 3rd resonant cavity 125 and the 4th resonant cavity 126 are configured to the Helmholtz resonant cavity respectively; Wherein said the 3rd resonant cavity 125 for example is used to offset, and frequency is the noise of 400-600Hz; Said the 4th resonant cavity 126 for example is used to offset that frequency is the noise of 100-200Hz, and the mode of this realization particularly is dependent on the openings of sizes of opening 128,129 and the volume of the 3rd resonant cavity 125 and the 4th resonant cavity 126.
Further preferably, said first dividing plate 127 is set to be orthogonal to said first side plate 220 and said second side plate 230 that is parallel to each other.
Therefore, as shown in Figure 3, said first chamber 120 can be divided into first resonant cavity 123 and second resonant cavity 124 that is configured to 1/4 wavelength pipe, and the 3rd resonant cavity 125 and the 4th resonant cavity 126 that are configured to the Helmholtz resonant cavity.
In addition; On the basis of aforementioned description; Said first dividing plate 127 also can extend along substantially horizontal or other any possibility directions, thereby said first chamber 120 is divided into the perhaps resonant cavity of other directions of the 3rd resonant cavity that is in top and the 4th resonant cavity that is in the bottom.
Further with reference to figure 4, it shows the sectional view of second chamber 130.In the embodiment shown in fig. 4; Be provided with the second partition 132 that is connected with said the 3rd side plate 240 with said second side plate 230 along substantially horizontal, said second partition 132 is divided into spaced the 5th resonant cavity 133 and the 6th resonant cavity 134 with said second chamber 130.Wherein, on said second air pipe 210, be provided with first connecting tube 135 that is connected to said the 5th resonant cavity 133, thereby preferably said the 5th resonant cavity 133 is constructed to the Helmholtz resonant cavity, it for example is used to offset that frequency is the noise of 100-150Hz.Further, on said second air pipe 210, be provided with first porous 136 that is connected to said the 6th resonant cavity 133, thereby said the 6th resonant cavity 134 is configured to the porous resonant cavity, it for example is used to offset that frequency is the noise of 800-1200Hz.
In addition, be appreciated that also that on aforesaid basis said second partition 132 also can possibly directions construct along Vertical direction or other.
Fig. 5 shows the sectional view of the 3rd chamber 140.In said the 3rd chamber 140, be provided with the 3rd dividing plate 142 and the 4th dividing plate 143 that said the 3rd chamber 140 are divided into the 7th resonant cavity 144 spaced apart from each other, the 8th resonant cavity 145, the 9th resonant cavity 146 and the tenth resonant cavity 147.Wherein preferably, said the 3rd dividing plate 142 is provided with in the horizontal direction, and said the 4th dividing plate 143 is provided with in vertical direction.As shown in Figure 5, on said second air pipe 210, be provided with second connecting tube 149 that is connected to said the 7th resonant cavity 144 and the 8th resonant cavity 145.Said the 4th dividing plate 143 is with being separated into first portion 1491 and second portion 1492 said second connecting tube 149; Wherein said first portion 1491 is communicated with said the 7th resonant cavity 144 and said second air pipe 210; Said second portion 1492 is communicated with said the 8th resonant cavity 145 and said second air pipe 210; Thereby said the 7th resonant cavity 144 and the 8th resonant cavity 145 are configured to the Helmholtz resonant cavity respectively; The 7th resonant cavity 144 for example is used to offset that frequency is the noise of 150-300Hz, and the 8th resonant cavity 145 for example is used to offset that frequency is the noise of 200-350Hz.Further, on said second air pipe 210, be provided with second porous 1481 and the 3rd porous 1482 that is connected respectively to said the 9th resonant cavity 146 and the tenth resonant cavity 147.Thereby said the 9th resonant cavity 146 and the tenth resonant cavity 147 are configured to the porous resonant cavity respectively, and it is respectively applied for for example offsets that frequency is that the noise of 1500-2000Hz and for example frequency are the noise of 1200-1500Hz.
Obviously, resonator system of the present invention is not only processed simply, and is easy for installation, and the mode of structure that can effectively weaken the noise of multiple different frequency also further is provided.
Claims (40)
1. resonator system that is used for engine aspirating system, it comprises housing and grafting part, it is characterized in that,
Said housing has the inner structure of cavity that be, is provided with opening at the first end of said housing, and said grafting part can be inserted in the cavity of said housing to form fit through said opening, thus in said housing at least one resonant cavity of formation;
Said housing has first air pipe or the gas port that is used for the gas inflow or flows out at its second end,
Said cutting graftage part branch comprises second air pipe, and said second air pipe has first end and the second end,
Said second air pipe is provided with first side plate, and said first side plate is close to the first end of said second air pipe and suitable with said opening,
Wherein, when said grafting part was inserted in the said housing fully, said first side plate can cover said opening hermetically, and said first air pipe or gas port are formed for said second air pipe jointly, and gas flows into or the admission line of outflow.
2. resonator system as claimed in claim 1 is characterized in that, said housing and said grafting partly adopt plastics to process, and said housing and said grafting part are respectively through the injection molding forming method unitary moulding.
3. like the arbitrary described resonator system of claim 1-2; It is characterized in that; Said first side plate so is provided with to the distance of the second end of said second air pipe; Make that the second end of said second air pipe just can contact with said first air pipe or gas port fully when said first side plate is fixedly connected with said opening.
4. like the arbitrary described resonator system of claim 1-3, it is characterized in that, on said first side plate and said opening, be provided with fixed connection apparatus, make said first side plate can be fixedly connected with said opening.
5. resonator system as claimed in claim 4 is characterized in that, said fixed connection apparatus is buckle structure, screw connection structure or welded structure.
6. like the arbitrary described resonator system of claim 1-5, it is characterized in that the internal diameter of said second air pipe is identical with the internal diameter and the external diameter of said first air pipe with the size of external diameter.
7. like the arbitrary described resonator system of claim 1-6, it is characterized in that said at least one resonant cavity is along axial, the circumferential or radial arrangement of said second air pipe.
8. like the arbitrary described resonator system of claim 1-7; It is characterized in that; Arrive the direction of said the second end along the first end of said second air pipe; Upwards be provided with second side plate in the said second air pipe week, and the cavity of said housing first chamber and second chamber have been arranged along direction of insertion.
9. resonator system as claimed in claim 8 is characterized in that, the area of said second side plate is slightly less than said first side plate, and the radial cross section of said second chamber is slightly less than the corresponding radial cross section of said first chamber.
10. like the arbitrary described resonator system of claim 8-9, it is characterized in that the junction of said first chamber and said second chamber is provided with the first step face, wherein said second side plate adapts to said first step face.
11. resonator system as claimed in claim 10; It is characterized in that; Said second side plate and said first step are looked like this and are set up; Make that said second side plate just is resisted against on the said first step face, thereby said first chamber and second chamber are separated when said grafting part is inserted in the said housing fully.
12. like the arbitrary described resonator system of claim 8-11; It is characterized in that; Direction along said first end to said the second end upwards be provided with the 3rd side plate in the said second air pipe week, and the chamber of said housing also has been arranged the 3rd chamber along direction of insertion.
13. resonator system as claimed in claim 12 is characterized in that, the area of said the 3rd side plate is slightly less than said second side plate, and the radial cross section of said the 3rd chamber is slightly less than the corresponding radial cross section of said second chamber.
14., it is characterized in that the junction of said second chamber and said the 3rd chamber is provided with the second step face like the arbitrary described resonator system of claim 12-13, wherein said the 3rd side plate adapts to said second step face.
15. resonator system as claimed in claim 14; It is characterized in that; Said the 3rd side plate and said second step are looked like this and are set up, and make that said the 3rd side plate just is resisted against on the said second step face when said grafting part is inserted in the said housing fully.
16. like the arbitrary described resonator system of claim 12-15; It is characterized in that; Said first side plate, second side plate and the 3rd side plate are arranged in parallel, and said first side plate, second side plate and the 3rd side plate further are set to perpendicular to said second air pipe.
17., it is characterized in that like the arbitrary described resonator system of claim 8-16, in said first chamber, be provided with first resonant cavity, said first resonant cavity is arranged on said second air pipe between said first side plate and said second side plate.
18. resonator system as claimed in claim 17; It is characterized in that; Said first resonant cavity is the catheter configurations of both ends open; Its first end is connected with said second air pipe, and when said grafting part was inserted in the said housing, second end of said first resonant cavity just was resisted against on the respective inner surfaces of said housing.
19. resonator system as claimed in claim 17; It is characterized in that said first resonant cavity is the catheter configurations of an end opening, first end of said first resonant cavity is an open construction; It is connected with said second air pipe, and second end of said first resonant cavity is a seal construction.
20., it is characterized in that said first resonant cavity is configured to 1/4 wavelength pipe like the arbitrary described resonator system of claim 17-19, said 1/4 wavelength pipe is set at and offsets frequency is the noise of 600-700Hz.
21., it is characterized in that like the arbitrary described resonator system of claim 17-20, in said first chamber, be provided with second resonant cavity, said second resonant cavity is arranged on said second air pipe along the opposite direction of said first resonant cavity.
22. resonator system as claimed in claim 21; It is characterized in that; Said second resonant cavity is the catheter configurations of both ends open; Its first end is connected with said second air pipe, and when said grafting part was inserted in the said housing, second end of said second resonant cavity just was resisted against on the respective inner surfaces of said housing.
23. resonator system as claimed in claim 21; It is characterized in that said second resonant cavity is the catheter configurations of an end opening, first end of said second resonant cavity is an open construction; It is connected with said second air pipe, and second end of said second resonant cavity is a seal construction.
24., it is characterized in that said second resonant cavity is configured to 1/4 wavelength pipe like the arbitrary described resonator system of claim 21-23, said 1/4 wavelength pipe is set at and offsets frequency is the noise of 800-1000Hz.
25. like the arbitrary described resonator system of claim 21-24; It is characterized in that; Said first resonant cavity and the second resonant cavity coaxial arrangement; And said first resonant cavity and second resonant cavity have identical internal diameter and external diameter size, and said first resonant cavity and second resonant cavity are parallel to said first side plate structure.
26. like the arbitrary described resonator system of claim 8-25; It is characterized in that; In said first chamber, be provided with the 3rd resonant cavity and the 4th resonant cavity; In said first chamber, be provided with first dividing plate that is connected with said second side plate with said first side plate, said first dividing plate is separated said the 3rd resonant cavity and the 4th resonant cavity with said first chamber.
27. resonator system as claimed in claim 26 is characterized in that, on said second air pipe, is respectively equipped with opening that is communicated to said the 3rd resonant cavity and the opening that is communicated to said the 4th resonant cavity.
28. like the arbitrary described resonator system of claim 26-27; It is characterized in that; Said the 3rd resonant cavity and the 4th resonant cavity are configured to the Helmholtz resonant cavity respectively; Wherein said the 3rd resonant cavity is set at and offsets frequency is the noise of 400-600Hz, and said the 4th resonant cavity is set at and offsets frequency is the noise of 100-200Hz.
29., it is characterized in that said first dividing plate is set to be orthogonal to said first side plate and said second side plate that is parallel to each other like the arbitrary described resonator system of claim 26-28.
30. like the arbitrary described resonator system of claim 8-29; It is characterized in that; In said second chamber, be provided with the 5th resonant cavity and the 6th resonant cavity; In said second chamber, be provided with the second partition that is connected with said the 3rd side plate with said second side plate along substantially horizontal, said second partition is divided into the 5th resonant cavity and the 6th resonant cavity with said second chamber.
31. resonator system as claimed in claim 30 is characterized in that, on said second air pipe, is provided with first connecting tube that is connected to said the 5th resonant cavity.
32., it is characterized in that said the 5th resonant cavity is constructed to the Helmholtz resonant cavity like the arbitrary described resonator system of claim 30-31, it is arranged at and offsets frequency is the noise of 100-150Hz.
33. like the arbitrary described resonator system of claim 30-32, it is characterized in that, on said second air pipe, be provided with first porous that is connected to said the 6th resonant cavity.
34., it is characterized in that said the 6th resonant cavity is configured to the porous resonant cavity like the arbitrary described resonator system of claim 30-32, it is arranged at and offsets frequency is the noise of 800-1200Hz.
35. like the arbitrary described resonator system of claim 12-34; It is characterized in that, in said the 3rd chamber, be provided with the 3rd dividing plate and the 4th dividing plate that said the 3rd chamber are divided into the 7th resonant cavity spaced apart from each other, the 8th resonant cavity, the 9th resonant cavity and the tenth resonant cavity.
36. resonator system as claimed in claim 35; It is characterized in that; On said second air pipe, be provided with second connecting tube that is connected to said the 7th resonant cavity and the 8th resonant cavity; Said the 4th dividing plate is separated into first portion and second portion with said second connecting tube, and the first portion of wherein said second connecting tube is connected to said the 7th resonant cavity, and the second portion of said second connecting tube is connected to said the 8th resonant cavity.
37. like the arbitrary described resonator system of claim 35-36; It is characterized in that; Said the 7th resonant cavity and the 8th resonant cavity are configured to the Helmholtz resonant cavity respectively; Wherein said the 7th resonant cavity is arranged at and offsets frequency is the noise of 150-300Hz, and said the 8th resonant cavity is arranged at and offsets frequency is the noise of 200-350Hz.
38. like the arbitrary described resonator system of claim 35-37, it is characterized in that, on said second air pipe, be provided with second porous and the 3rd porous that are connected respectively to said the 9th resonant cavity and the tenth resonant cavity.
39. resonator system as claimed in claim 38 is characterized in that, said the 9th resonant cavity and the tenth resonant cavity are constructed to the porous resonant cavity respectively, and it is arranged at respectively and offsets frequency is the noise of 1500-2000Hz and the noise of 1200-1500Hz.
40. an air-strainer, the arbitrary described resonator system of claim 1-39 is arranged in the upper reaches or the downstream of said air-strainer, and perhaps integral body is integrated in the said air-strainer.
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| CN201110042641.XA CN102644531B (en) | 2011-02-16 | 2011-02-16 | Resonant system |
| DE102012000806.6A DE102012000806B4 (en) | 2011-02-16 | 2012-01-18 | resonator |
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| CN201110042641.XA CN102644531B (en) | 2011-02-16 | 2011-02-16 | Resonant system |
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| CN112555072A (en) * | 2020-12-08 | 2021-03-26 | 安徽江淮汽车集团股份有限公司 | Amortization structure and car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102644531B (en) | 2015-02-25 |
| DE102012000806B4 (en) | 2017-09-28 |
| DE102012000806A1 (en) | 2012-08-16 |
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