CN208534616U - A kind of turbocharger - Google Patents
A kind of turbocharger Download PDFInfo
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- CN208534616U CN208534616U CN201821122431.5U CN201821122431U CN208534616U CN 208534616 U CN208534616 U CN 208534616U CN 201821122431 U CN201821122431 U CN 201821122431U CN 208534616 U CN208534616 U CN 208534616U
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- compressor
- casing
- turbocharger
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- wall
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- 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
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Abstract
The utility model discloses a kind of turbocharger, including compressor and turbine assembly；Compressor includes shell and impeller；The impeller and turbine of compressor are coaxial；Shell includes casing and compressor ontology, and casing and compressor ontology are configured to detachable structure；Casing includes inner and outer wall；Inner wall forms the air inlet runner of perforation, and the reflux road junction of at least one set of perforation casing is disposed on outer wall；Casing partial insertion compressor ontology forms compressor housings, the outer wall and compressor ontology of casing form annular space, and it is partially promoted to the air after predetermined pressure by compressor impeller by flowing into the air inlet runner through air inlet by-pass port along annular space, realizes the effect that compressor housings separate design ensure that processing and be promoted for compressor surge nargin.
Description
Technical field
The turbocharging that the utility model relates to use on the field of internal combustion engine turbocharger more particularly to a kind of automobile
The field of device.
Background technique
Turbocharging is a kind of technology of exhaust gas driven air compressor for changing the line of production raw using internal combustion engine running, car engine
Machine generally installs turbocharger, and turbo charged main function is exactly to improve air input of engine by air, to improve engine
Power and torque, allow car energeticallyer.After one engine loads onto turbocharger, maximum power with without booster when
It waits even higher compared to 40% can be increased.Also mean that same one engine can be defeated after passing through pressurization in this way
Bigger power out.
In actual use, flow different under same rotational speed corresponds to different outlet pressures, the smaller outlet pressure of flow
Rising is faster, leads to the appearance of surge, makes compressor and engine cisco unity malfunction.So improving surge margin for starting
Machine is stable to have played important role.Treated casing is a kind of method of common raising surge domain degree, common casing mechanism
Include following structure: for treated casing using circumferential 360 ° of air inlet annular groove, circumferential direction has groove structure muscle, annular groove outlet
It is directly communicated with compressor totality import, annular groove import is machined structures.
360 ° of air inlet annular groove is not easily accomplished in processing, especially long and narrow annular channel, thus its molding is adopted more
With Shooting Technique, the conduit molded in this way can be caused in air-flow flowing by serious throttling or disturbance there are structure muscle
Energy loss, the outlet of annular groove, which is directly connect with the import open type of compressor assembly, can not eliminate for the dry of air inlets flow
It disturbs, so that compressor ontology noise is got higher or flow losses are larger, using machining annular groove import, there are in processing
Difficulty, the size adjusting in simultaneous processing hole is more difficult, uniform sizes and quality also it is difficult to ensure that.
Therefore against the above technical problems, it would be highly desirable to develop a kind of turbocharger, improve surge margin, guarantee engine and
The stable operation of compressor.
Utility model content
In view of the above drawbacks of the prior art, technical problem to be solved in the utility model is how to guarantee compressor
Reflux runner it is unobstructed, surge does not occur.
To achieve the above object, the utility model provides a kind of turbocharger, including compressor and turbine assembly；Pressure
Mechanism of qi includes shell and impeller；The impeller of compressor and turbine are coaxial；Shell includes casing and compressor ontology, casing with calm the anger
Machine ontology is configured to detachable structure；Casing includes inner and outer wall；Inner wall forms the air inlet runner of perforation, cloth on outer wall
It is equipped with the reflux road junction of at least one set of perforation casing；Casing partial insertion compressor ontology forms compressor housings, the portion of casing
Exceptionally wall and the compressor ontology form annular space, and part is promoted to the air after predetermined pressure by the compressor impeller
By flowing into the air inlet runner through the reflux road along the annular space.
Further, casing outer wall includes protrusion, and the department of assembly on protrusion and the compressor ontology is clamped, and shape
At sealed connection.
Further, casing is forming assembly annular space along air inlet flowing most downstream end and the compressor ontology.
Further, casing outer wall includes that gas diversion division is said in the circumferential reflux.
Further, diversion division is flaring type or curved face type.
Further, casing be inserted into the compressor ontology and outer wall that constitute circumferential bypass by scheduled bus around pre-
Dead axle line rotational forming.
Further, it is by coaxial, belt transmission or gear drive that turbine, which drives the wheel rotation of the compressor,.
Further, compressor ontology injection molding, and/or, the casing is machining or injection molding be half at
Product will at least partly be machined as finished product again.
Further, casing and the compressor ontology are by being threadedly engaged in connection, riveting or pin joint mode
A kind of mode is attached.
Further, casing and compressor body fits gap are circumferential clearance.
In the better embodiment of the utility model, detachable seperated knot is set with compressor ontology by casing
Structure, casing and compressor ontology distinguish machine-shaping, are connected by inserting mode, and ensure that each assembling by bulge-structure
Accessory is respectively mounted the precision and size of cooperation.
In another better embodiment of the utility model, the casing individually processed can be designed as revolving structure, until
The part for being inserted into compressor ontology less can be machined, and the bus which can be turned round by one is constituted, after the assembly is completed
Will not bypass annular groove inside formed flow-disturbing effect, on the other hand assemble after air flow passage air-flow direction most
Downstream position forms fit-up gap entrance.
Technical effect, it is ensured that machining accuracy can conveniently adjust gap as entrance by fit-up gap
For size to adapt to different car body vehicles, the outlet of last annular groove molds flow-guiding structure with can be convenient with machining mode,
Air in annular groove can be guided to the air inlet runner of the casing by the diversion division by smaller turbulent losses, supplement low inspiratory capacity
Under the conditions of the low problem of surge margin.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is prior art turbocharger structure chart；
Fig. 2 is the assembly structure figure of the compressor housings in the utility model turbocharger；
Fig. 3 is the fractionation structure chart before the assembly of the compressor housings in the utility model turbocharger.
Specific embodiment
Multiple preferred embodiments that the utility model is introduced below with reference to Figure of description, keep its technology contents clearer
Be easy to understand.The utility model can be emerged from by many various forms of embodiments, the protection of the utility model
Range is not limited only to the embodiment mentioned in text.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and the utility model is not
Limit the size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
As shown in Figure 1, being prior art turbocharger structure chart, turbine and impeller are coaxial.
It as shown in Figures 2 and 3, is the installation diagram of compressor housings in the utility model turbocharger and tearing open before assembly
Separation structure figure, turbocharger applications utilize the effect of compressor to realize to sky during it on automobile, ensure that vehicle exhaust
The sucking of gas, in the present embodiment, combustion chamber is not shown, and turbine is connected with combustion chamber exhaust duct, and impeller and turbine are same
Axis when the flue gas when combustion chamber rushes at turbine at an angle, pushes turbine rotation, so that the impeller of compressor be driven to revolve
Turn, compressor is sent into combustion chamber after also compressing the air of sucking, and the amount for generating flue gas with burning is different, turbine rotational speed
Will be different, when the promotion that burning generates flue gas is smaller, the rotation speed of compressor is also low, due to compressor in the utility model
Shell is made of detachable casing 2 and compressor ontology 3, and has leaf in the shell after casing 2 and the assembly of compressor ontology 3
Wheel space 8 is for installing impeller, and the position between the top and bottom end of impeller contains casing 2 and compressor ontology 3 assembles
The annular space 6 of formation, thus the air being inhaled into complete part boosting, the air partially to be boosted at this time can casing 2 into
It is back in annular space 6 under 7 pressure differential of air inlet by-pass port 5 and fit-up gap of flow channel 1, and the diversion division 4 in annular space 6
The lower air inlet runner 1 that compressor casing 2 is back to by the air inlet by-pass port 5 of casing 2 of effect, on paper by bypassing reflux stream
Increase the air inflow of compressor, nominally and biggish air inflow reduces the surge risk of compressor, on the other hand by
It is also enhanced in the boundary layer that air flowing is added in partial reflux air-flow, so that the surge margin of compressor is enhanced.
Further, in this embodiment casing 2 and compressor ontology 3 detachable assembly is realized by the way of grafting,
The two can be formed by the way of processing respectively, and particularly with 2 part of casing, the restriction of seperated design size etc. will be more smart
Really, it is thus possible to guarantee production efficiency and the quality of production, 2 part of casing is machined or is formed first using injection molding scheme
For semi-finished product, machining mode is recycled to be shaped to 2 finished product of casing, the casing 2 completed the process includes lug boss, and lug boss is main
For positioning, guarantee the insertion section size of each batch production by machining mode, when the casing 2 is inserted into compressor ontology
After 3, can assemble and process due to the two in it is reserved and generate fit-up gap 7, the fit-up gap 7 be subsequent annular space 6 into
Port forms air inlet by seperated fit-up gap 7, it is ensured that as vehicle difference can be micro-adjusted, and then make
It obtains the compressor and is suitable for various, on the other hand in order to adapt to different requirements, the end of the casing can be shaped to
Different structure or waveform or other types.
Further, in this embodiment casing 2 and the part of 3 grafting of compressor ontology at least use same bus around core
Axis rotates, this ensure that mach simplicity, in addition grafting part ensure that it using the design of bus revolving structure
Without structure muscle inside the annular space 6 cooperatively formed with compressor ontology 3, turning round bus can be designed as tapered configuration or different
Other structures, the casing 2 are formed and are tightly connected with after the compressor ontology 3 insertion connection, can by sealing ring or
Other modes sealing, in order to guarantee that easy fractionation and connection reliability, the two of the two can rely on engagement thread, riveting method
Or pin joint mode etc. is attached, and is not excluded for other leakproofness connection types certainly, such as expanded joint mode connects, when casing 2
Size can increase the reliability that connecting flange guarantees connection when enough, and pass through more screws when the size of casing 2 is smaller
Casing 2 and compressor ontology 3 are fixed, ensure that the versatility solution of compressor housings after assembly.
Further, in this embodiment casing 2 mold perforative air inlet by-pass port 5, most optimally to be machined to
Multiple spaced apart flutings that type goes out, since using seperated design, reflux gas is flowed in the partial outer face of casing 2, outside
Surface to air inlet by-pass port is readily available mach mode and molds diversion division 4, and the diversion division 4 can be gradually to tilt
To the planar structure of air inlet by-pass port 5, it can also be shaped to streamlined curved-surface structure, since the presence of the flow-guiding structure 4 makes
Air-flow can be back to air inlet runner 1 to more small loss, and this also increases the flows of reflux gas, can mention to greatest extent
The surge margin that the mechanism of qi that boosts is run, and air inlet by-pass port 5 cooperates flow-guiding structure 4 to be delivered to the gas to be flowed back by annular space 6
The partially central position of air inlet runner 1, and the air-flow to flow back is biased under diversion division effect with 1 air-flow direction of air inlet runner
Unanimously, reduce the dissipation that liquidates between reflux gas and air inlet, this in the surge margin for pushing mechanism of qi compared with low discharge for mentioning
It is extraordinary for rising.
Further in order to better ensure that diversion division 4 for the guide functions of reflux gas, diversion division 4 is by machining side
Formula is shaped to the plane of rotation structure of gradual change or according to airflow design to turn round streamlined curved-surface structure, mainly examines in design
Consider the speed in air flowing, optimally the diversion division 4 obtains optimal structure by CFD analogue technique, in order to cooperate water conservancy diversion
Portion 4 preferably realizes effect, and the annular space 6 molds gas collection portion, institute along the most downstream position of reflux gas flow direction
Pooled portion is stated with certain cavity volume, and the volume is disposed with along reflux gas flow direction than air inlet by-pass port
5 further downstream volume parts, the partial volume primarily serve the effect for adjusting and buffering to return air speed, utilize CFD mould
Quasi- scientific discovery is since the buffer part exists, and return air cooperates diversion division 4 that will realize that the smaller reflux that dissipates acts on, this sets
Meter is so that the return air amount and return air mixing velocity of compressor are further optimized, and then are realized to greatest extent
Promote the effect of compressor surge nargin.
Turbine and compressor transmit the rotating energy of turbine by way of common axis in present embodiment, and actually make
Can also be with middle other kinds of drive, such as belt sheave structure, gear structure, cam structure etc. and different drive mechanisms
It is adapted to different requirements, such as the combustion state of practical automobile is optimized and studied discovery air inflow and flue gas row
There are a preferably relational expressions for tolerance, then it is existing both can to realize that the proportion of revolving speed does not have to change by structures such as gears
Turbine and gas compressor blade wheel construction, ensure that the cost of turbocharger to greatest extent.
The part of casing 2 and 3 grafting of compressor ontology in the present embodiment, at least partially cylindrical surface of revolution, the pressure
Mechanism of qi ontology 3 and the mating part of casing 2 are also the cylindrical surface of revolution, and the two grafting forms the annular space of cooperation,
The space can guarantee the isotropism effect in reflux gas flow process, and the air inlet annular space 6 that the two distribution type is formed also belongs to
The air inlet gap of circumference type ensure that the uniformity and consistency of reflux gas air inlet.
Compressor is configured in the compressor casing body that casing 2 and 3 plug connection of compressor ontology are formed in the present embodiment
Impeller, by surge margin tracing analysis, minimum air inflow is analyzed with surge margin relationship and obtains, in order to improve the air inflow
Influence, the air inlet optimum pressure and optimal return flow of reflux gas be calculated, by the flow obtained annular space 6 into
Gas position also directs casing size design using this design rule, to guarantee fit-up gap 7 and impeller location relationship, into
And it ensure that and optimally improve the surge margin of compressor.
For different vehicles, combustion parameter and combustion conditions, combustion chamber will affect the design of turbocharger, in order to
Guarantee the versatility of the structure, the starting point of the utility model is surge margin curve, and then the size of casing 2 has been determined, complete
At the connection coaxial with turbine of the compressor of assembly, the air of external environment can flow into impeller quilt by the air inlet runner of compressor
Pressurization, since air inlet annular space 6 is accelerated to the air return of predetermined pressure to air inlet runner 1 there are part, the sky being pressurized
Gas ensure that the abundance of air inflow, and the exhaust outlet of compressor is connected with the combustion chamber of engine, and the air being pressurized is burning
Sufficient oxidation environment, the air inlet of the flue gas flow direction turbine for generation of burning, in turbine volute are provided in room for fuel combustion
In realize promotion for turbine, and then produce rotary power, atmosphere can be exported to by the exiting flue gas of turbine
In environment, whole process is completed, and the energy for generation of wherein burning be used to push the pivot of automobile, and then realize hair
The reliability operation of motivation also ensures the power of automobile.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that this field ordinary skill without
It needs creative work according to the present utility model can conceive and makes many modifications and variations.Therefore, it is all in the art
Technical staff passes through logical analysis, reasoning, or a limited experiment according to the design of the utility model on the basis of existing technology can
It, all should be within the scope of protection determined by the claims with obtained technical solution.
Claims (10)
1. a kind of turbocharger, which is characterized in that including compressor and turbine assembly；The compressor includes shell and leaf
Wheel；The impeller and turbine of the compressor are coaxial；
The shell includes casing and compressor ontology, and the casing and the compressor ontology are configured to detachable structure；
The casing includes inner and outer wall；
The inner wall forms the air inlet runner of perforation, and the reflux road junction of at least one set of perforation casing is disposed on the outer wall；
Compressor ontology described in the casing partial insertion forms the compressor housings, the outer wall of the casing with it is described
Compressor ontology forms annular space, and the air after predetermined pressure is partially promoted to by the compressor impeller by along the annular space
The air inlet runner is flowed into through the reflux road.
2. turbocharger as described in claim 1, which is characterized in that the casing outer wall includes protrusion, the protrusion
Department of assembly in portion and the compressor ontology is clamped, and forms sealed connection.
3. turbocharger as described in claim 1, which is characterized in that the casing is flowing most downstream end and institute along air inlet
It states compressor ontology and forms assembly annular space.
4. turbocharger as described in claim 1, which is characterized in that the casing outer wall includes that conductance is said in circumferential reflux
Stream portion.
5. turbocharger as claimed in claim 4, which is characterized in that the diversion division is flaring type or curved face type.
6. turbocharger as described in claim 1, which is characterized in that the casing is inserted into the compressor ontology and structure
Outer wall from cyclization to bypass by scheduled bus around predetermined axial line rotational forming.
7. turbocharger as described in claim 1, which is characterized in that the turbine drives the wheel rotation of the compressor
It is by one of coaxial, belt transmission or gear drive transmission mode.
8. turbocharger as described in claim 1, which is characterized in that the compressor ontology injection molding, and/or, institute
State that casing is machining or injection molding is that semi-finished product will at least partly be machined as finished product again.
9. turbocharger as described in claim 1, which is characterized in that the casing and the compressor ontology pass through screw thread
One of mating connection, riveting or pin joint mode mode is attached.
10. turbocharger as described in claim 1, which is characterized in that between the casing and the compressor body fits
Gap is circumferential clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821122431.5U CN208534616U (en) | 2018-07-16 | 2018-07-16 | A kind of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821122431.5U CN208534616U (en) | 2018-07-16 | 2018-07-16 | A kind of turbocharger |
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| Publication Number | Publication Date |
|---|---|
| CN208534616U true CN208534616U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821122431.5U Active CN208534616U (en) | 2018-07-16 | 2018-07-16 | A kind of turbocharger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661783A (en) * | 2018-07-16 | 2018-10-16 | 奕森科技（上海）有限公司 | A kind of turbocharger |
| CN114136641A (en) * | 2021-10-20 | 2022-03-04 | 中国航发四川燃气涡轮研究院 | Exhaust device for warming and pressurizing air compressor tester |
-
2018
- 2018-07-16 CN CN201821122431.5U patent/CN208534616U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661783A (en) * | 2018-07-16 | 2018-10-16 | 奕森科技（上海）有限公司 | A kind of turbocharger |
| CN114136641A (en) * | 2021-10-20 | 2022-03-04 | 中国航发四川燃气涡轮研究院 | Exhaust device for warming and pressurizing air compressor tester |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201013 Address after: 215506 No. 1150, Southeast Avenue, Dongnan street, Changshu, Suzhou, Jiangsu Province Patentee after: Eason Technology (Jiangsu) Co., Ltd Address before: 201703 Shanghai city Qingpu District No. 518 Songhui Road Building 1 layer 1 Patentee before: ISEM TECHNOLOGIES (SHANGHAI) Co. |
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| TR01 | Transfer of patent right |