CN206233994U - A kind of gasoline engine new waste gas bi-turbo - Google Patents
A kind of gasoline engine new waste gas bi-turbo Download PDFInfo
- Publication number
- CN206233994U CN206233994U CN201621342187.4U CN201621342187U CN206233994U CN 206233994 U CN206233994 U CN 206233994U CN 201621342187 U CN201621342187 U CN 201621342187U CN 206233994 U CN206233994 U CN 206233994U
- Authority
- CN
- China
- Prior art keywords
- turbine
- compressor
- axle
- volute
- turbo
- 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.)
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Classifications
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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
Abstract
The utility model discloses a kind of gasoline engine new waste gas bi-turbo, including volute and the two-stage turbine, first turbine, two-stage turbine axle, first turbine axle, compressor II and the compressor I that are installed on inside volute, through the inside of two-stage turbine axle, the two ends of described first turbine axle pass two-stage turbine axle certain length to described first turbine axle；One end of described two-stage turbine axle is provided with compressor II, and the other end of described two-stage turbine axle is provided with two-stage turbine；One end of described first turbine axle is provided with compressor I and clamp nut, and the other end of described first turbine axle is provided with first turbine.The utility model dramatically simplifies structure while good transient response performance is ensured.
Description
Technical field
The utility model is related to engine art, more particularly to a kind of gasoline engine new waste gas bi-turbo.
Background technology
Turbocharger is widely used for the part on engine, can not influence the same of function of the engine
When, waste gas ability is reclaimed, increase engine power.Turbocharger promotes whirlpool using the waste gas inertia impulsive force that engine is discharged
Indoor turbine is taken turns, turbine drives coaxial impeller, the air that impeller force feed is sent by air filter pipeline to be allowed to be pressurized again
Into cylinder.When engine speed increase, the waste gas velocity of discharge and secondary speed also synchronously increase, impeller just compresses more skies
Gas enters cylinder, and the pressure and density of air increase more fuel that can burn, corresponding to increase fuel quantity and adjustment engine
Rotating speed, and then increase engine power output.
Applying the turbocharger on automobile at present mainly has mechanical turbocharger, exhaust-driven turbo-charger exhaust-gas turbo charger, mixing
Formula booster and the class of electronic turbocharger four.Engine mechanically drives mechanical supercharger to be pressurized, referred to as machinery
Supercharging, the transient response of engine driven supercharging is good, without obvious sluggish sense, but drives compressor to consume the certain output of engine
Power, loses power, and the thermal efficiency of mechanically-sapercharged engine is not necessarily improved, sometimes also lower than naturally aspirated engine on the contrary
A bit.
Turbocharger, referred to as exhaust gas turbocharge, turbocharger and engine are driven using engine exhaust energy
Between communicated by gas circuit, because the work(of compressor consumption is part energy that turbine is reclaimed from waste gas, so turbocharging
Engine can not only increase the power of engine, and can improve its thermal efficiency, reduce fuel consumption, but in waste gas
Flow hour cannot work.
Hybrid booster is mixed by mechanical turbine booster and exhaust-driven turbo-charger exhaust-gas turbo charger, can be in real time engine
Extra power is provided.When the engine speed is lower, using mechanical turbine supercharging mode, booster passes through engine output work
Rate；After engine speed is gradually stepped up, exhaust-driven turbo-charger exhaust-gas turbo charger intervention, mechanical turbine booster is progressively exited, to save combustion
Specific oil consumption；When full engine load or overload operation, mechanical turbine booster and exhaust-driven turbo-charger exhaust-gas turbo charger work simultaneously,
Extra power is provided, but it is complex structure, relatively costly.
Electronic turbocharger is current state-of-the-art booster, and the waste gas of booster is flowed through by magnetic valve real-time control
Flow velocity and pressure, can solve turbine intervention slowly, respond sluggish problem, while the loss of engine power performance is avoided, but
It is complicated its control strategy, service life is shorter.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of double turbines of gasoline engine new waste gas increase
Depressor, while good transient response performance is ensured, dramatically simplifies structure.
To achieve these goals, the utility model uses following technical proposals：
A kind of gasoline engine new waste gas bi-turbo, including volute and two-stage turbine, one being installed on inside volute
Level turbine, two-stage turbine axle, first turbine axle, compressor II and compressor I, described first turbine axle pass through two-stage turbine axle
Inside, the two ends of described first turbine axle pass two-stage turbine axle certain length；One end peace of described two-stage turbine axle
Equipped with compressor II, the other end of described two-stage turbine axle is provided with two-stage turbine；One end peace of described first turbine axle
Equipped with compressor I and clamp nut, the other end of described first turbine axle is provided with first turbine.
Described volute includes compressor volute, intermediate and turbine volute, and pressure is installed in the side of described intermediate
Mechanism of qi volute, the opposite side of described intermediate installs pressure turbine volute；Described clamp nut, compressor I and compressor
II is installed on the inside of compressor volute, and described first turbine and two-stage turbine is installed on the inside of turbine volute.
It is provided with inside described compressor volute without leaf formula diffuser pipe, the inside of described intermediate is provided with oil baffle.
Thrust bearing is provided between described two-stage turbine axle and intermediate.
Gas off-take is provided between described first turbine and turbine volute.
One end of described two-stage turbine axle connection two-stage turbine is provided with boss.
Described compressor II is provided with compressor impeller.
Lubricating oil is provided with inside described two-stage turbine axle.
The beneficial effects of the utility model：
(1) first turbine can cover all operating modes of engine work, especially when exhaust gas flow is smaller, can still increase
Plus certain FAI Fresh Air Intake amount, solve that conventional exhaust turbocharger cannot work when exhaust gas flow is smaller asks
Topic；
(2) due to first turbine continuous firing, when two-stage turbine is intervened, conventional exhaust turbocharger is alleviated sluggish
The shortcoming that sense is obvious, pause and transition in rhythm or melody sense is stronger；
(3) compared to hybrid turbocharger and electronic turbocharger, with cost is relatively low, simple structure, work
Highly reliable advantage.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model；
Fig. 2 is side view of the present utility model；
Fig. 3 is first turbine of the present utility model and two-stage turbine amount of gas pressure contribution rate graph of a relation；
Fig. 4 is first turbine of the present utility model and two-stage turbine surface mean wind speed situation of change figure；
Fig. 5 is first turbine of the present utility model and two-stage turbine rotation speed change situation map；
Fig. 6 is the pump gas amount comparison diagram of the utility model and traditional booster；
Wherein, 1- compressors volute, 2- is without leaf formula diffuser pipe, 3- compressor impellers, 4- compressors II, 5- compressor I, 6-
First turbine axle, 7- thrust bearings, 8- oil baffles, 9- two-stage turbine axles, 10- first turbines, 11- gas off-takes, bis- grades of whirlpools of 12-
Wheel, 13- turbine volutes, 14- intermediates.
Specific embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
Embodiment 1：
As shown in figure 1, a kind of gasoline engine new waste gas bi-turbo, including volute and two be installed on inside volute
Level turbine 12, first turbine 10, two-stage turbine axle, first turbine axle 9, compressor II4 and compressor I5, described first turbine
Through the inside of two-stage turbine axle 9, the two ends of described first turbine axle 6 pass the certain length of two-stage turbine axle 9 to axle 6；It is described
One end of two-stage turbine axle 9 compressor II4 is installed, the other end of described two-stage turbine axle 9 is provided with two-stage turbine 12；
One end of described first turbine axle 6 is provided with compressor I5 and clamp nut, and the other end of described first turbine axle 6 is installed
There is first turbine 10.
Described volute includes compressor volute 1, intermediate 14 and turbine volute 13, the side of described intermediate 14
Compressor volute 1 is installed, the opposite side of described intermediate 14 installs pressure turbine volute 13；Described clamp nut, calm the anger
Machine I5 and compressor II4 are installed on the inside of compressor volute 1, and described first turbine 10 and two-stage turbine 12 is installed on turbine
The inside of machine volute 13.
It is provided with inside described compressor volute 1 without leaf formula diffuser pipe 2, the inside of described intermediate 14 is provided with oil baffle
8。
Thrust bearing 7 is provided between described two-stage turbine axle 9 and intermediate 14.
Gas off-take 11 is provided between described first turbine 10 and turbine volute 13.
One end of the described connection two-stage turbine 12 of two-stage turbine axle 9 is provided with boss.
Described compressor II4 is provided with compressor impeller 3.
Lubricating oil is provided with inside described two-stage turbine axle 9, first turbine axle 5 is passed through from the inside of two-stage turbine axle 9, relied on
The levitation effect support of the internal lubrication of two-stage turbine axle 9 oil.
When exhaust gas flow is smaller, first turbine 10 is rotated with higher rotation speed, drives compressor I5 to calm the anger, and increases combustion chamber
Fresh air flow；As exhaust gas flow gradually increases, two-stage turbine 12 starts rotation, drives compressor II4 to calm the anger, and now one
Level turbine 10 still undertakes major part；When exhaust gas flow increases to higher value, the rotating speed of two-stage turbine 12 continues to increase, first turbine
10 reach stagnation state oepration at full load, and two-stage turbine 12 drives compressor II4 work, and first turbine 10 drives compressor I5 works
Make,, simultaneously for combustion chamber provides fresh air, combustion air flow is dramatically increased, and engine power is obviously improved for the two.
Two-stage turbine and first turbine amount of gas pressure contribution rate graph of a relation are as shown in figure 3, first turbine 12 can be covered starts
All operating modes of machine work, especially when exhaust gas flow is smaller, can still increase certain FAI Fresh Air Intake amount, solve biography
The problem that system exhaust-driven turbo-charger exhaust-gas turbo charger cannot work when exhaust gas flow is smaller.Further, since the continuous firing of first turbine 10, when
When two-stage turbine 12 is intervened, the sluggish shortcoming that sense is obvious, pause and transition in rhythm or melody sense is stronger of conventional exhaust turbocharger is alleviated.
Embodiment 2：
Simulation calculation is carried out to the utility model, new waste gas turbocharger operation performance has been predicted, have chosen altogether idle
Speed, five operating modes of 30km/h, 60km/h, 100km/h, 140km/h are calculated, and obtain two-stage turbine and one-level whirlpool under each operating mode
The surface wind speed situation of change of wheel is as shown in figure 4, figure 4, it is seen that being continuously increased with speed, two-stage turbine and
The wind speed and rotating speed of level turbine surfaces are also continuously increased, it means that secondary speed will also be improved constantly, so as to drive compressor
Rotated with rotating speed higher, be that combustion chamber pumps into more fresh airs.
According to turbine surfaces wind speed situation of change, each operating mode next stage secondary speed and compressor pump gas amount are calculated.
As shown in table 1, first turbine and two-stage turbine rotation speed change situation are as shown in Figure 5 for statistics.
Each operating mode pump gas amount of table 1 collects
Pump gas amount during with the engine using conventional exhaust turbocharger is contrasted, under each operating mode, master cylinder tolerance
Have increases by a relatively large margin, and comparing result is as shown in Figure 6.When speed is relatively low, compressor pump gas amount increase is especially apparent, this be because
For the utility model can cover all vehicle speed ranges, compensate for conventional exhaust turbocharger cannot pump gas in low speed
Birth defect.
It is not new to this practicality although above-mentioned be described with reference to accompanying drawing to specific embodiment of the present utility model
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (8)
1. a kind of gasoline engine new waste gas bi-turbo, it is characterised in that including volute and be installed on inside volute two
Level turbine, first turbine, two-stage turbine axle, first turbine axle, compressor II and compressor I, described first turbine axle are passed through
The inside of two-stage turbine axle, the two ends of described first turbine axle pass two-stage turbine axle certain length；Described two-stage turbine
One end of axle is provided with compressor II, and the other end of described two-stage turbine axle is provided with two-stage turbine；Described first turbine
One end of axle is provided with compressor I and clamp nut, and the other end of described first turbine axle is provided with first turbine.
2. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 1, it is characterised in that described volute bag
Compressor volute, intermediate and turbine volute are included, compressor volute, described intermediate are installed in the side of described intermediate
Opposite side install pressure turbine volute；Described clamp nut, compressor I and compressor II are installed on the interior of compressor volute
Portion, described first turbine and two-stage turbine is installed on the inside of turbine volute.
3. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 2, it is characterised in that described compressor
It is provided with inside volute without leaf formula diffuser pipe, the inside of described intermediate is provided with oil baffle.
4. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 2, it is characterised in that two grades of described whirlpools
Thrust bearing is provided between wheel shaft and intermediate.
5. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 2, it is characterised in that described one-level whirlpool
Gas off-take is provided between wheel and turbine volute.
6. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 1, it is characterised in that two grades of described whirlpools
One end of wheel shaft connection two-stage turbine is provided with boss.
7. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 1, it is characterised in that described compressor
II is provided with compressor impeller.
8. a kind of gasoline engine new waste gas bi-turbo as claimed in claim 1, it is characterised in that two grades of described whirlpools
Axle interior is provided with lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342187.4U CN206233994U (en) | 2016-12-08 | 2016-12-08 | A kind of gasoline engine new waste gas bi-turbo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342187.4U CN206233994U (en) | 2016-12-08 | 2016-12-08 | A kind of gasoline engine new waste gas bi-turbo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233994U true CN206233994U (en) | 2017-06-09 |
Family
ID=58978345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342187.4U Expired - Fee Related CN206233994U (en) | 2016-12-08 | 2016-12-08 | A kind of gasoline engine new waste gas bi-turbo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206233994U (en) |
-
2016
- 2016-12-08 CN CN201621342187.4U patent/CN206233994U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20171208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |