CN107956750A - A kind of low noise control method - Google Patents
A kind of low noise control method Download PDFInfo
- Publication number
- CN107956750A CN107956750A CN201610899389.7A CN201610899389A CN107956750A CN 107956750 A CN107956750 A CN 107956750A CN 201610899389 A CN201610899389 A CN 201610899389A CN 107956750 A CN107956750 A CN 107956750A
- Authority
- CN
- China
- Prior art keywords
- compressor
- air inlet
- wall
- flow
- inlet cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The present invention relates to a kind of low noise control method, and annular gap is equipped between the compressor housings of the system and the rotor blade of rotor, is equipped with compressor inner wall in compressor casing body, compressor inner wall surrounds air inlet cavity, and air inlet cavity is connected with annular gap；The gas channel that the direction along the air-flow in air inlet cavity is set is formed between compressor housings and compressor inner wall；Compressor inner wall is equipped with the executing agency for the outlet for being used for allowing or prevent air-flow from flowing through gas channel.The low noise control method is, widen groove by noise reduction ring and flow changes Middle and low frequency noise, reduces high-frequency noise by executing agency jointly.A kind of supercharger systems and low noise control method provided by the invention, structure improvement is carried out to booster, noise partition is carried out from sound wave bang path, all radial flow type boosters is applicable in, solves the problems, such as that Middle and low frequency noise and high-frequency noise can not be reduced at the same time in the prior art.
Description
Technical field
The present invention relates to technical field of engines, and in particular to a kind of low noise control method.
Background technology
As charcoal discharges the increasingly stringent of limitation requirement, supercharging technology becomes the inevitable choice of engine technology developments.With
The pressure ratio for booster in recent years gradually rises, and requirement of the people to the comfort of engine also begins to improve, and causes booster
Noise problem become the problem of current producer and user increasingly pay close attention to.
At present, footpath solve streaming exhaust-driven turbo-charger exhaust-gas turbo charger noise problem, means the most general be using noise reduction ring and/
Or flow widens groove.Wherein, noise reduction ring plays guide functions, can make the more smooth stabilization of air velocity distribution, so as to reduce part
Aerodynamic noise;Flow widens groove in addition to widening the range of flow in low charge flow rate region, coordinates noise reduction ring to use, can also one
Determine the Whoosh noises of low frequency in the weakening of degree.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of supercharger systems and low noise control method, to booster
Structure improvement is carried out, noise partition is carried out from sound wave bang path, is applicable in all radial flow type boosters, solves the prior art
In the problem of can not reducing Middle and low frequency noise and high-frequency noise at the same time.
In order to solve the above technical problem, the present invention provides a kind of supercharger systems and low noise control method.
- kind of supercharger systems, including compressor housings and rotor, the compressor housings and the rotor leaf of the rotor
Annular gap is equipped between piece, compressor inner wall is equipped with the compressor casing body, the compressor inner wall surrounds air inlet cavity,
The air inlet cavity is connected with the annular gap;Between the compressor housings and the compressor inner wall formed along it is described into
The gas channel that the direction of air-flow in gas cavity is set, the entrance of the gas channel connect the annular gap, the gas
The air inlet of air inlet cavity described in the outlet of circulation road；The compressor inner wall, which is equipped with, to be used to allow or prevent the gas
Stream flows through the executing agency of the outlet of the gas channel.
The low noise control method of-kind of supercharger systems, includes the following steps：
Air inlet cavity is set in compressor casing, noise reduction ring is connected with the air inlet of the air inlet cavity, and by described
Noise reduction ring reduces Middle and low frequency noise when air-flow enters the air inlet cavity；
The above-mentioned technical proposal of the present invention has the advantages that：
A kind of supercharger systems provided by the invention, the entrance connection annular gap of its gas channel, the outlet of gas channel connects
The air inlet of logical air inlet cavity；Compressor inner wall is equipped with the execution for the outlet for being used for allowing or prevent air-flow from flowing through gas channel
Mechanism, in engine low load operating mode, opens the outlet of gas channel, in high engine load operating mode, closed gas flow leads to
The outlet in road, so as to play the role of changing airflow direction, and then reduces Middle and low frequency noise and high-frequency noise.
A kind of supercharger systems provided by the invention, it is simple in structure, easy to implement, reliable and stable and of low cost, fit
With all radial flow type boosters, and booster noise abatement can be made horizontal to acceptable.
A kind of low noise control method of supercharger systems provided by the invention, it is common to widen groove by noise reduction ring and flow
Change Middle and low frequency noise, improve pressure flow field characteristic by varying some pipeline sections to improve the passive acoustic characteristic of booster,
So as to the method for reducing high-frequency noise.The cost of method provided by the invention is low, easy to operate and easy to implement.
Brief description of the drawings
Fig. 1 is the cut-away view of supercharger systems of the present invention;
Fig. 2 is the current control figure of supercharger systems of the present invention.
Wherein, 1:Air current flow direction；2:Compressor housings;3:Volute flow passage;4:Diffuser;5:Rotor blade;6:Stream
Amount widens groove;7:Compressor air outlet pipe;8:Spring;9:Sealing ring；10:Annular valve body;11:Electromagnet;12:Noise reduction ring；13:Into
Gas cavity;14:Compressor inner wall;15:Gas channel;16:Shaft.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiments are used for
Illustrate the present invention, but cannot be used for limiting the scope of the invention.
In the description of the present invention, it is necessary to explanation, unless otherwise indicated, " multiple " be meant that two or two with
On;The orientation of the instruction such as term " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody "
Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for description purpose, and cannot
It is interpreted as indicating or implying relative importance.
In the description of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect;Can mechanically connect or be electrically connected;It can be directly connected, can also be indirectly connected by intermediary.It is right
For those of ordinary skill in the art, visual concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment one
As shown in Figure 1, a kind of supercharger systems provided in this embodiment, including compressor housings 2 and rotor, rotor pass through shaft
16 are fixed in compressor housings 2, and annular gap, compressor housings are equipped between the rotor blade 5 of compressor housings 2 and rotor
Compressor inner wall 14 is equipped with 2, compressor inner wall 14 surrounds air inlet cavity 13, and air inlet cavity 13 is connected with annular gap;Calm the anger
The gas channel 15 that the direction along the air-flow in air inlet cavity 13 is set, air-flow are formed between casing body 2 and compressor inner wall 14
The entrance connection annular gap of passage 15, the air inlet of the outlet air inlet cavity 13 of gas channel 15；Compressor inner wall 14
It is equipped with and is used to allow or the executing agency of the outlet that prevents air-flow from flowing through gas channel 15, and by varying air flow direction, from
And reduce high-frequency noise.
Executing agency is electromagnetic actuator.In the present embodiment, electromagnetic actuator includes spring 8,10 and of annular valve body
Electromagnet 11, compressor inner wall 14 are equipped with the annular groove being coaxial therewith close to one end of the air inlet of air inlet cavity 13;Bullet
Spring 8 is inserted in the bottom of annular groove, and annular valve body 10 is inserted in annular groove and is connected with spring 8;Compressor housings 2
Some electromagnet 11 are equipped with inner wall at the position opposite with annular valve body 10, electromagnet 11 can be one block of ring electromagnet
11, or polylith electromagnet 11.In the present embodiment, the quantity of electromagnet 11 is multiple, and each electromagnet 11 is along compressor casing
The circumferential direction of body 2 is uniformly distributed.When electromagnet 11 has magnetism, electromagnet 11 is attracted annular valve body 10, makes gas channel 15
Port closing；When electromagnet 11 is without magnetism, the elastic force of spring 8 makes annular valve body 10 keep separating shape with electromagnet 11
State, makes the port opening of gas channel 15.Wherein, the energization or power-off of electromagnet 11（With magnetic force or without magnetic force) it is logical
Control unit of engine control is crossed, control unit of engine receives the feedback signal of engine, when its feedback is underload work
Condition signal, control unit of engine control electromagnet 11 power off；When its feedback is high load capacity working condition signal, engine control is single
Member control electromagnet 11, be powered.
In addition, for controlling the executing agency of gas flow to be not limited to the knot in electromagnetic actuator or the present embodiment
Configuration formula, as long as heretofore described any structure shape with control gas flow and sound wave partition control function can be reached
Formula, belongs to the technology of the present invention.
Sealed between annular valve body 10 and the side wall of annular groove by sealing ring 9, in the present embodiment, the number of sealing ring 9
Measure as four, be respectively arranged between annular valve body 10 and the two side walls of annular groove, annular valve body 10 and annular groove
Two sealing rings 9 are set respectively between each side wall, improve sealing effect.
Supercharger systems further include noise reduction ring 12, diffuser 4 and volute flow passage 3, noise reduction ring 12 and 2-body of compressor housings
Connection, and the outside of the air inlet positioned at air inlet cavity 13, reduce middle low frequency when gas flows into the air inlet of air inlet cavity 13
Noise;Diffuser 4 and volute flow passage 3 and compressor integrally connected, and annular gap connects volute flow passage 3, whirlpool by diffuser 4
Shell runner 3 connects compressor air outlet pipe 7.In addition, groove 6 is widened in the inlet of the gas channel 15 of the present embodiment equipped with flow, drop
Low-flow enters Middle and low frequency noise during gas channel 15.
Claims (1)
- A kind of 1. low noise control method, it is characterised in that including compressor housings and rotor, the compressor housings with it is described Annular gap is equipped between the rotor blade of rotor, compressor inner wall, the compressor inner wall are equipped with the compressor casing body Air inlet cavity is surrounded, the air inlet cavity is connected with the annular gap;The compressor housings and the compressor inner wall it Between form the gas channel that the direction along the air-flow in the air inlet cavity is set, the entrance of the gas channel connects the ring Shape gap, the air inlet of air inlet cavity described in the outlet of the gas channel；The compressor inner wall, which is equipped with, to be used to permit Perhaps or the air-flow is prevented to flow through the executing agency for going out U of the gas channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899389.7A CN107956750A (en) | 2016-10-17 | 2016-10-17 | A kind of low noise control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610899389.7A CN107956750A (en) | 2016-10-17 | 2016-10-17 | A kind of low noise control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107956750A true CN107956750A (en) | 2018-04-24 |
Family
ID=61954193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610899389.7A Pending CN107956750A (en) | 2016-10-17 | 2016-10-17 | A kind of low noise control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107956750A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439848A (en) * | 2019-08-07 | 2019-11-12 | 中国北方发动机研究所(天津) | A kind of supercharger air compressor sealing structure |
| CN115388037A (en) * | 2022-08-02 | 2022-11-25 | 哈尔滨工程大学 | Supercharger air inlet rectification structure with broadband noise reduction effect |
-
2016
- 2016-10-17 CN CN201610899389.7A patent/CN107956750A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439848A (en) * | 2019-08-07 | 2019-11-12 | 中国北方发动机研究所(天津) | A kind of supercharger air compressor sealing structure |
| CN115388037A (en) * | 2022-08-02 | 2022-11-25 | 哈尔滨工程大学 | Supercharger air inlet rectification structure with broadband noise reduction effect |
| CN115388037B (en) * | 2022-08-02 | 2023-07-21 | 哈尔滨工程大学 | Supercharger air inlet rectifying structure with broadband noise reduction effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570157B (en) | A kind of supercharger systems and low noise control method | |
| US8485498B2 (en) | Valve control apparatus | |
| US10480398B2 (en) | Controlling turbocharger compressor choke | |
| EP1867865A2 (en) | Exhaust Gas Recirculation Mixer | |
| US20110255952A1 (en) | Compressor gas flow deflector and compressor incorporating the same | |
| KR102073754B1 (en) | Compressor stage of a turbocharger with flow amplifier | |
| CN104968944A (en) | Centrifugal compressor | |
| US9932991B2 (en) | Active swirl device for turbocharger compressor | |
| RU2013123351A (en) | SIMPLIFIED TURBOCHARGER WITH VARIABLE GEOMETRY WITH INCREASED FLOW RANGE | |
| CN102953826B (en) | Pneumatic supersonic velocity/hypersonic velocity adjustable air inlet passage for forebody-inner passage circulation | |
| US10920659B2 (en) | Turbocharger | |
| EP3030791A1 (en) | Attachment arrangement for turbo compressor | |
| US20130309106A1 (en) | Turbocharger | |
| CN107956750A (en) | A kind of low noise control method | |
| JP2012052508A (en) | Variable supercharger and control method thereof | |
| WO2017223363A1 (en) | Improved inlet system for a radial compressor | |
| US20110308504A1 (en) | Ventilation system and method for supercharge engine | |
| US20190072029A1 (en) | Compressor arrangement supplying charged air to a combustion engine | |
| US20170016455A1 (en) | Separated opposed flow single coupling compressor stage | |
| US20150044023A1 (en) | Exhaust-gas turbocharger | |
| CN107725823A (en) | A kind of water bypass of engine | |
| JP2018013092A (en) | engine | |
| WO2019147942A1 (en) | Method for supressing surge instabilities in turbomachine compressors | |
| JP2010180708A (en) | Turbocharger | |
| JP2016053353A (en) | Exhaust gas turbine of turbocharger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180424 |