CN109306898A - A kind of engine, turbocharger and its control method - Google Patents
A kind of engine, turbocharger and its control method Download PDFInfo
- Publication number
- CN109306898A CN109306898A CN201710619255.XA CN201710619255A CN109306898A CN 109306898 A CN109306898 A CN 109306898A CN 201710619255 A CN201710619255 A CN 201710619255A CN 109306898 A CN109306898 A CN 109306898A
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- China
- Prior art keywords
- turbocharger
- cylinder
- spacing body
- inlet channel
- hemichannel
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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
- 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
-
- 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
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
- F02B37/225—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits air passages
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a kind of engine, turbocharger and its control method, which includes: volute trunnion, is equipped with along the diminishing inlet channel in airintake direction cross section；Flexible spacing body, the flexible spacing body are telescopically disposed in the inlet channel along airintake direction and the inlet channel are divided into the first hemichannel and the second hemichannel；For controlling the flexible control device of the flexible partition plate.So set, the turbocharger of engine provided by the invention, the problem of one side is able to solve turbo lag under low speed, it is on the other hand able to solve the problem of the lower wheel speed shakiness of high speed.
Description
Technical field
The present invention relates to technical field of engines, more specifically to a kind of engine, turbocharger and its control
Method.
Background technique
With the continuous development of science and technology, turbocharging technology has reached its maturity and has obtained answering extensively in automotive field
With turbocharging technology mainly pushes the indoor turbine of turbine, turbine and band using the exhaust gas inertia impulsive force of engine discharge
Coaxial impeller is moved, the air that impeller force feed is sent by air cleaner pipeline is allowed to pressurization and enters cylinder, passes through compressed air
Increase air input of engine by air, improves fuel economy to make to improve engine torque power, air inlet compressed capability is straight
Connect the overall performance for influencing engine.
There are mainly two types of modes, i.e. constant pressure supercharging and pulse pressure-charging to engine charge pressurization for exhaust-driven turbo-charger exhaust-gas turbo charger.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is that constant pressure charging system schematic diagram, Fig. 2 are level pressure in the prior art in the prior art
Booster-type turbocharger schematic diagram.Constant pressure supercharging refers to that the pressure before exhaust pipe turbine is almost invariable, although
Each cylinder is alternately to be vented, but due to the pressure stabilization function of superimposed pulses and exhaust pipe, the pressure at turbine inlet is almost
Constant, the high-speed large-flow gas push turbine of constant pressure is utilized under high speed conditions.This kind of supercharging mode is being born entirely
Exhaust energy is considerable when under lotus state, but when the engine speed is lower, and exhaust energy is but very small, at this time turbocharging
Device will be insufficient due to driving force and be unable to reach working speed, in this way caused by result be exactly, in the slow-speed of revolution, turbocharging
Device can not play a role, and at this time the power performance of turbocharged engine is even less than a natural aspiration with discharge capacity
Engine, here it is " turbo lag " phenomenons.
Fig. 3 and Fig. 4 are please referred to, Fig. 3 is that impulse pressure charging system schematic diagram, Fig. 4 are pulse in the prior art in the prior art
Booster-type turbocharger schematic diagram.Pulse pressure-charging is that exhaust gas is discharged by each cylinder different moments to form pulse, whirlpool
Pressure before wheel be it is changed, pressure wave drives turbine in a pulsed fashion.
By taking four cylinder engine as an example, as shown in Figure 3, the exhaust manifold of four cylinders is respectively first exhaust manifold 1,
Two exhaust manifolds 2, third exhaust manifold 3 and the 4th exhaust manifold 4, pulse pressure-charging formula turbocharger will light a fire two neighboring gas
Cylinder exhaust pipe separates two-by-two, and first exhaust manifold 1 and 4 one groups of the 4th exhaust manifold, second exhaust manifold 2 and third are vented discrimination
3 one groups of pipe, in this way when third cylinder, which completes acting, to be exhausted, the first cylinder is to enter suction stroke, due to the first cylinder
Be not attached to the exhaust manifold of third cylinder, thus the exhaust of third cylinder will not influence the first cylinder air inlet effect it is (other
Similarly), light a fire in this way two adjacent cylinders intake and exhaust not by interference effect, the intake and exhaust amount of each cylinder can be improved, thus
Effectively improve the efficiency of engine.When engine load changes, the variation of delivery temperature and pressure can be quickly passed to whirlpool
Turbine, and be directly reflected into compressor by turbine thus can be compared with to make booster compared with the variation of fast-response engine load
Improve the accelerating performance and torque characteristics of engine well, pulse pressure-charging can especially realize turbocharger when revolving speed is lower
Fast response characteristic because the pulse of this when is most strong, and pressure difference compares before and after the turbine under constant pressure supercharging mode
It is small.But this kind of structure radiate under high-temperature gas repeated stock it is bad be easier to that cracking situation occurs, material selection is required high and is made
Valence is high, not convenient for safeguarding, and it is obvious to will appear under high-speed working condition whirlpool prepulse effect, the feelings of high-temperature gas pressure transient
Condition, in turn results in that wheel speed is unstable, the bad situation of vehicle driving.
Therefore, turbocharger turbine sluggishness and high speed under low speed in the prior art how are solved the problems, such as simultaneously
The problem of lower wheel speed shakiness, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of turbocharger of engine, one side is able to solve
Under low speed the problem of turbo lag, it is on the other hand able to solve the problem of the lower wheel speed shakiness of high speed.The purpose of the present invention is also
It is to provide the control method of a kind of engine including above-mentioned turbocharger and above-mentioned turbocharger.
A kind of turbocharger of engine provided by the invention, comprising:
Volute trunnion is equipped with along the diminishing inlet channel in airintake direction cross section；
Flexible spacing body, the flexible spacing body are telescopically disposed in the inlet channel along airintake direction and will be described
Inlet channel is divided into the first hemichannel and the second hemichannel；
For controlling the flexible control device of the flexible partition plate.
Preferably, the inside of the flexible spacing body is cavity structure, flexible spacing body the entering close to the inlet channel
One end of mouth is fixedly connected with the volute trunnion, one end of the outlet of the close inlet channel is free end, the control
Device includes that the air compressor machine of high pressure gas can be provided into the cavity structure, when the air compressor machine is mentioned to the cavity structure
When for high pressure gas, the free end of the flexible spacing body can be stretched out along the airintake direction of the inlet channel.
Preferably, the flexible spacing body includes multiple trapezoidal plates being telescopically nested together, and each trapezoidal plate is stretched
Two sides are contacted with the side wall of the inlet channel when out；It is cuboid cavity inside each trapezoidal plate, and adjacent
The cuboid cavity of two trapezoidal plates is connected, and the side wall of the cuboid cavity trapezoidal plate internal with it can be slided relatively
Dynamic ground close contact.
Preferably, the inner sidewall of the inlet channel is equipped with the sliding slot matched with the flexible spacing body.
Preferably, the cross-sectional area of first hemichannel and second hemichannel is equal.
Preferably, the side wall of the first volute trunnion is equipped with and is connected with the cuboid cavity of the trapezoidal plate of the bottom
Logical air hose, the air hose are connected with the air compressor machine.
The present invention also provides a kind of control methods of turbocharger, increase for controlling as above described in any item turbines
Depressor, comprising steps of
When speed operation needs turbocharger to intervene, then control the flexible spacing body along the inlet channel into
Gas direction is stretched out；
In high-speed working condition, then controls the flexible spacing body and contract along the direction opposite with the airintake direction of the inlet channel
It returns.
The present invention also provides a kind of engines, are equipped with turbocharger, and the turbocharger is as above any one institute
The turbocharger stated.
Preferably, the engine is four cylinder engine, is disposed with the first cylinder, the second cylinder, third cylinder
With the 4th cylinder, wherein the exhaust manifold of the first cylinder and the 4th cylinder is connected to first hemichannel, the second cylinder and
The exhaust manifold of three cylinders and the connection of the second hemichannel.
In technical solution provided by the invention, volute trunnion is connected with turbine, produces turbine for water conservancy diversion high pressure gas
Raw rotation, is equipped with the diminishing inlet channel in cross section.Volute trunnion is divided into the first hemichannel and the by flexible spacing body
Two hemichannels, for example, when the turbocharger in the present invention is on four cylinder engine, wherein the first hemichannel can be with the
The connection of the exhaust manifold of one cylinder and the 4th cylinder, the second hemichannel are connected with the exhaust manifold of the second cylinder and third cylinder
It is logical.It should be noted that flexible spacing body can be stretched out along the airintake direction of inlet channel, side that also can be opposite along airintake direction
To retraction, when flexible spacing body is stretched out along the airintake direction of inlet channel, since turbine trunnion is to be gradually reduced along airintake direction
Structure, and the length that the first hemichannel and the second hemichannel are not only separated is longer, but also the opening of outlet side is smaller,
It is equivalent in a manner of pulse pressure-charging and improves turbine low speed response and low speed torque, avoid the problem that turbo lag.When in high speed
When operating condition, high-temperature gas ability is enough that turbine is pushed to do work, and the high-temperature gas at this moment needing to stablize air pressure persistently does work, therefore can be with
Flexible spacing body is controlled to retract to the opposite direction of airintake direction, due to the first hemichannel and the second hemichannel separate length compared with
It is short, and the channel cross-section of spaced position is larger, and can be considered as the two is two interconnected channels, is equivalent to constant pressure supercharging
Mode carry out turbocharging, and then the acting of steady pressure gas push turbine can be provided, while pressure accordingly reduces before whirlpool,
Power and stability conducive to being vented in cylinder, when promoting high speed.This programme is exactly to pass through flow-passage-changeable scheme for two kinds of pressurization sides
Formula combines, and uses pulse pressure-charging in speed operation to improve low speed engine low speed response and improve torque, in high speed
Operating condition uses constant pressure supercharging mode to promote engine power.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is constant pressure charging system schematic diagram in the prior art；
Fig. 2 is constant pressure supercharging formula turbocharger schematic diagram in the prior art；
Fig. 3 is impulse pressure charging system schematic diagram in the prior art；
Fig. 4 is pulse pressure-charging formula turbocharger schematic diagram in the prior art；
Fig. 5 is turbocharger schematic diagram in the embodiment of the present invention；
Fig. 6 is turbocharger schematic internal view in the embodiment of the present invention；
Volute trunnion -11, flexible spacing body -12, the first hemichannel -13, the second hemichannel -14, trapezoidal plate -15, sky
Press -16.
Specific embodiment
A kind of turbocharger for being designed to provide engine of present embodiment, one side is able to solve low
Under speed the problem of turbo lag, it is on the other hand able to solve the problem of the lower wheel speed shakiness of high speed.Present embodiment
Purpose, which also resides in, provides the control method of a kind of engine including above-mentioned turbocharger and above-mentioned turbocharger.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Summary of the invention rise any restriction effect.In addition, the full content of composition represented by following example is not limited to as right
Necessary to the solution invented documented by it is required that.
It please refers to Fig. 5 and Fig. 6, the turbocharger of engine provided by the invention, including volute trunnion 11 and setting exists
Flexible spacing body 12 in volute trunnion 11.
Volute trunnion 11 is connected with turbine, so that turbine is generated rotation for water conservancy diversion high pressure gas, volute trunnion 11 is equipped with
The diminishing inlet channel in cross section, inlet channel with the exhaust throat of cylinder for being connected.
Volute trunnion 11 is divided into the first hemichannel 13 and the second hemichannel 14 by flexible spacing body 12, for example, as the present invention
In turbocharger on four cylinder engine when, wherein the first hemichannel 13 can be with the row of the first cylinder and the 4th cylinder
The connection of gas manifold, the second hemichannel 14 are connected with the exhaust manifold of the second cylinder and third cylinder.Certainly, in the present embodiment,
Turbocharger can also be on other types of engine, for example, three-cylinder engine, six cylinder engine etc., specific to be arranged
Mode can be similar with pulse pressure-charging formula turbocharger set-up mode in the prior art.
It should be noted that flexible spacing body 12 can be stretched out along the airintake direction of inlet channel, also can along with air inlet side
It retracts in the opposite direction, when flexible spacing body 12 is stretched out along the airintake direction of inlet channel, since turbine trunnion is along air inlet
The diminishing structure in direction, and the length that the first hemichannel 13 and the second hemichannel 14 are not only separated is longer, but also
The opening of outlet side is smaller, is equivalent in a manner of pulse pressure-charging and improves turbine low speed response and low speed torque, avoids turbine slow
Stagnant problem.
In high-speed working condition, high-temperature gas ability is enough that turbine is pushed to do work, and at this moment needs to stablize the High Temperature Gas of air pressure
Body persistently does work, therefore can control flexible spacing body 12 and retract to the opposite direction of airintake direction, due to the first hemichannel 13 and the
Two hemichannels 14 separate that length is shorter, and the channel cross-section of spaced position is larger, both can be considered as and mutually to interconnect for two
Logical channel, the mode for being equivalent to constant pressure supercharging carry out turbocharging, and then can provide steady pressure gas push turbine and do
Function, while pressure accordingly reduces before whirlpool is conducive to exhaust in cylinder, power and stability when promoting high speed.
This programme is exactly to pass through flow-passage-changeable scheme to combine two kinds of supercharging modes, is increased in speed operation using pulse
Pressure uses constant pressure supercharging mode to promote engine to improve low speed engine low speed response and improve torque in high-speed working condition
Power.
In the preferred embodiment of the present embodiment, above-mentioned flexible spacing body 12 refers to that spacing body ontology itself can elongate or shorten, tool
Body can be arranged as described below.
The inside of flexible spacing body 12 is cavity structure, the one end and volute larynx of the spacing body 12 that stretches close to the entrance of inlet channel
Pipe 11 is fixedly connected, one end of the outlet of close inlet channel is free end.For controlling the flexible control dress of flexible spacing body 12
It sets including the air compressor machine 16 of high pressure gas can be provided into cavity structure, when air compressor machine 16 provides high pressure to the cavity structure
When gas, the free end of flexible spacing body 12 can be stretched out along the airintake direction of inlet channel.
High pressure gas is provided by air compressor machine 16, when high pressure gas is filled into flexible 12 inside of spacing body, in high pressure gas
Under pressure effect, the free end of flexible spacing body 12 can be stretched out along the airintake direction of inlet channel, and then can increase by the first half
Channel 13 and the second hemichannel 14 separated by a distance, when air compressor machine 16 provide negative-pressure gas when, under the action of negative-pressure gas, energy
Enough retract the free end of flexible spacing body 12.
Flexible spacing body 12 may include multiple trapezoidal plates 15 being telescopically nested together, two when each trapezoidal plate 15 stretches out
Side is contacted with the side wall of inlet channel, so set, forming a whole ladder when each trapezoidal plate 15 all extends
The two sides of shape structure, the entirety trapezium structure are contacted with the inner sidewall of volute trunnion 11, and then inlet channel can be separated into
First hemichannel 13 and the second hemichannel 14.
In addition, being cuboid inside each trapezoidal plate 15 to guarantee that high pressure gas can enable trapezoidal plate 15 stretch
Cavity, and the cuboid cavity of two adjacent trapezoidal plates 15 is connected, the side wall of cuboid cavity and its internal trapezoidal plate
15 can slidably close contact relatively.The width of cuboid cavity is equal with its internal width on bottom edge of trapezoidal plate 15.
Trapezoidal plate 15 is mutually disengaged in order to prevent, and the bottom of the trapezoidal plate 15 inside gas supply can be equipped in cuboid cavity
The sliding slot of the both ends sliding on side, and sliding slot is closed at both ends, when trapezoidal plate 15 is retractable to extreme higher position or extreme lower position, ladder
The bottom edge of shape plate 15 and the closed end of sliding slot offset, and prevent from coming off.
Further, the inside of inlet channel is equipped with the sliding slot matched with flexible spacing body 12.In such manner, it is possible to guarantee to stretch
The direction of spacing body 12 along the chute is stretched, and ensure that the stability in flexible 12 telescopic process of spacing body.
In the present embodiment, the cross section of the first hemichannel 13 and the second hemichannel 14 can be equal, certainly, in other implementations
In example, can also specifically it set according to the actual situation, for example, for the engine of singular cylinder, the first hemichannel 13 and the second half
The cross-sectional area in channel 14 can be set according to the connection quantity with exhaust manifold.
In the present embodiment, the side wall of the first volute trunnion 11 is equipped with to be connected with the cuboid cavity of the trapezoidal plate 15 of the bottom
Logical air hose, air hose are connected with air compressor machine 16.
Air compressor machine 16 is connected by air hose with the cuboid cavity of the trapezoidal plate 15 of the bottom, to the trapezoidal plate of the bottom
15 provide high pressure gas, and then convenient for successively releasing trapezoidal plate 15 from the bottom to top.
The present embodiment additionally provides one kind for controlling turbocharger as described in the examples as above, comprising steps of
When speed operation needs turbocharger to intervene, then flexible spacing body 12 is controlled along the airintake direction of inlet channel
It stretches out；
In high-speed working condition, then controls flexible spacing body 12 and retracted along the direction opposite with the airintake direction of inlet channel.
Specific control process can be controlled by car running computer, and the specific setting parameter of speed operation and high-speed working condition
It can specifically set according to the actual situation.
The present embodiment additionally provides a kind of engine, is equipped with turbocharger, which is in embodiment as above
The turbocharger.So set, engine provided in this embodiment, one side is able to solve turbo lag under low speed
The problem of, on the other hand it is able to solve the problem of the lower wheel speed shakiness of high speed.The derivation process of the beneficial effect and above-mentioned whirlpool
The derivation process for taking turns beneficial effect brought by booster is substantially similar, and therefore, this article will not repeat them here.
Present embodiment has carried out expansion to each embodiment using progressive mode and has introduced, and each embodiment can be
Individual embodiment can also be overlapped mutually, no longer be illustrated one by one herein.The foregoing description of the disclosed embodiments makes
Professional and technical personnel in the field can be realized or using the present invention.Professional skill of the various modifications to these embodiments to this field
It will be apparent for art personnel, the general principles defined herein can not depart from the spirit or scope of the present invention
In the case where, it realizes in other embodiments.Therefore, the present invention will not be limited to the embodiments shown herein, and
It is to fit to the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. a kind of turbocharger of engine characterized by comprising
Volute trunnion is equipped with along the diminishing inlet channel in airintake direction cross section；
Flexible spacing body, the flexible spacing body are telescopically disposed in the inlet channel along airintake direction and by the air inlets
Channel partition is the first hemichannel and the second hemichannel；
For controlling the flexible control device of the flexible partition plate.
2. turbocharger as described in claim 1, which is characterized in that the inside of the flexible spacing body is cavity structure, institute
Flexible spacing body is stated to be fixedly connected close to one end of the entrance of the inlet channel with the volute trunnion, close to the inlet channel
Outlet one end be free end, the control device includes that the pneumatics of high pressure gas can be provided into the cavity structure
Machine, when the air compressor machine provides high pressure gas to the cavity structure, the free end of the flexible spacing body can along it is described into
The airintake direction in gas channel stretches out.
3. turbocharger as claimed in claim 2, which is characterized in that the flexible spacing body includes multiple telescopically covering
Trapezoidal plate together, two sides are contacted with the side wall of the inlet channel when each trapezoidal plate stretches out；Each ladder
Shape intralamellar part is cuboid cavity, and the cuboid cavity of two adjacent trapezoidal plates is connected, the cuboid cavity
Side wall and its internal trapezoidal plate can slidably close contact relatively.
4. turbocharger as claimed in claim 3, which is characterized in that the inner sidewall of the inlet channel is equipped with to be stretched with described
The sliding slot that contracting spacing body matches.
5. turbocharger as described in claim 1, which is characterized in that the cross of first hemichannel and second hemichannel
Sectional area is equal.
6. turbocharger as claimed in claim 3, which is characterized in that the side wall of the first volute trunnion is equipped with and most bottom
The air hose that the cuboid cavity of the trapezoidal plate of layer is connected, the air hose are connected with the air compressor machine.
7. a kind of control method of turbocharger, which is characterized in that for controlling whirlpool as claimed in any one of claims 1 to 6
Booster is taken turns, comprising steps of
When speed operation needs turbocharger to intervene, then the flexible spacing body is controlled along the air inlet side of the inlet channel
To stretching；
In high-speed working condition, then controls the flexible spacing body and retracted along the direction opposite with the airintake direction of the inlet channel.
8. a kind of engine is equipped with turbocharger, which is characterized in that the turbocharger is as claim 1-6 is any
Turbocharger described in.
9. engine as claimed in claim 8, which is characterized in that the engine is four cylinder engine, is disposed with
First cylinder, the second cylinder, third cylinder and the 4th cylinder, wherein the exhaust manifold of the first cylinder and the 4th cylinder with it is described
The connection of first hemichannel, the second cylinder are connected to the exhaust manifold of third cylinder and the second hemichannel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710619255.XA CN109306898B (en) | 2017-07-26 | 2017-07-26 | Engine, turbocharger and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710619255.XA CN109306898B (en) | 2017-07-26 | 2017-07-26 | Engine, turbocharger and control method thereof |
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| CN109306898A true CN109306898A (en) | 2019-02-05 |
| CN109306898B CN109306898B (en) | 2021-05-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3348414A (en) * | 1964-10-09 | 1967-10-24 | Gen Electric | Gas turbine temperature measuring apparatus |
| US4590766A (en) * | 1983-07-27 | 1986-05-27 | Dr. Ing. H.C.F Porsche Ag | Exhaust gas steam turbine drive unit for automotive vehicles |
| DE102005028027A1 (en) * | 2005-06-17 | 2006-12-21 | Daimlerchrysler Ag | Exhaust gas turbine for exhaust gas turbocharger of e.g. Otto engine, has actuator implemented as bellows-adjusting device with axial extendable and/or retractable bellows and impinged on fluid with pressure for length variation of bellows |
| US20090290980A1 (en) * | 2008-05-20 | 2009-11-26 | Mitsubishi Heavy Industries, Ltd. | Mixed flow turbine |
| CN102080577A (en) * | 2010-12-24 | 2011-06-01 | 康跃科技股份有限公司 | Section-variable turbine |
-
2017
- 2017-07-26 CN CN201710619255.XA patent/CN109306898B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3348414A (en) * | 1964-10-09 | 1967-10-24 | Gen Electric | Gas turbine temperature measuring apparatus |
| US4590766A (en) * | 1983-07-27 | 1986-05-27 | Dr. Ing. H.C.F Porsche Ag | Exhaust gas steam turbine drive unit for automotive vehicles |
| DE102005028027A1 (en) * | 2005-06-17 | 2006-12-21 | Daimlerchrysler Ag | Exhaust gas turbine for exhaust gas turbocharger of e.g. Otto engine, has actuator implemented as bellows-adjusting device with axial extendable and/or retractable bellows and impinged on fluid with pressure for length variation of bellows |
| US20090290980A1 (en) * | 2008-05-20 | 2009-11-26 | Mitsubishi Heavy Industries, Ltd. | Mixed flow turbine |
| CN102080577A (en) * | 2010-12-24 | 2011-06-01 | 康跃科技股份有限公司 | Section-variable turbine |
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|---|---|
| CN109306898B (en) | 2021-05-18 |
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