CN107939513A - Electricity auxiliary disengaging type power turbine combined supercharging device - Google Patents
Electricity auxiliary disengaging type power turbine combined supercharging device Download PDFInfo
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- CN107939513A CN107939513A CN201810011631.1A CN201810011631A CN107939513A CN 107939513 A CN107939513 A CN 107939513A CN 201810011631 A CN201810011631 A CN 201810011631A CN 107939513 A CN107939513 A CN 107939513A
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- box
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- 230000005611 electricity Effects 0.000 title claims abstract description 24
- 238000003825 pressing Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 16
- 238000004146 energy storage Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 42
- 239000000543 intermediate Substances 0.000 description 13
- 238000007789 sealing Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000000528 lesser trochanter Anatomy 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
- F16D27/04—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Supercharger (AREA)
Abstract
The present invention relates to a kind of electricity auxiliary disengaging type power turbine combined supercharging device, belong to vehicle power machinery field.The present invention proposes a kind of electric machine external scheme, dynamotor is arranged on outside booster as stand-by motor, motor power is delivered to by supercharger rotor axis by gear-box, and it can realize that gear-box is combined with separating with armature spindle according to different operating conditions arrangement of clutch, under high engine speeds operating mode, by gear-box dynamotor can be driven to generate electricity the remaining energy of armature spindle, this electric machine external scheme effectively prevent influence of the high temperature to dynamotor electronic component, while realizes the efficient distribution of turbocharger energy and utilize；In one power turbine of booster turbine end series connection, using the two level exhaust gas driven power turbine after booster turbine does work, so as to drive dynamotor power-generation energy-storage, the utilization rate of exhaust energy is improved, improves the economy of engine.
Description
Technical field
The invention belongs to vehicle power machinery field, and in particular to a kind of electricity auxiliary disengaging type power turbine combined supercharging
Device.
Background technology
The current application of turbocharger on the engine is more and more common, and turbocharger is come from structure and operation principle
See, be a kind of small-sized air compressor.Turbocharger drives turbine to rotate using the exhaust energy of engine emission, from
And drive coaxial air end of booster impeller to rotate, more air are taken in cylinder, improve in engine atmospheric density and
The mixing ratio of air and fuel, so as to improve engine output, improve burning, achievees the purpose that reinforcing stimulus.But
Turbocharged engine there is also some problems.Under low engine speed operating mode, exhaust energy is few, and secondary speed is low, supercharging pressure
Power is relatively low, and air demand lags behind fuel delivery.Such case cause for unsaturated vapor cause gas in-cylinder combustion be deteriorated, occur over-emitting black exhaust,
The problems such as accelerating moment of torsion insufficient.For general vehicle supercharger using the spiral case of smaller to improve the rotating speed of booster, also using can
Become nozzle, variable cross section turbocharging technology, try hard to extend the performance of low speed segment.But practice have shown that above-mentioned measure is under low operating mode
The performance change effect of booster is extremely limited, and reason is exactly the energy deficiency of objectively exhaust gas.Engine and turbocharger
After the matching of speed operation section, exhaust energy surplus can be produced under high-speed working condition, causes turbine to exceed the speed limit, causes in high-speed working condition
Lower engine deviates ideal characterisitics.For this reason, most turbocharger are equipped with exhaust gas bypass system, the bypass system under high-speed working condition
Discharge unit exhaust gas is opened, turbocharger is only worked using a part of exhaust gas.Currently for by turbocharger whirlpool
The utilization rate of the two level exhaust energy discharged after wheel acting is relatively low, not utilized to be just discharged into environment.Therefore driven using exhaust gas
Dynamic turbine rotation, driving the technology of compressor pressure, there are three larger defects：First, there is " turbo lag " phenomenon；Second, increase
Depressor discharge capacity cannot with engine under full working scope perfect match；Third, the utilization rate of two level exhaust energy is low.
At present, the technical measures used regarding to the issue above have two-stage turbocharger, mechanical turbine combined supercharging, move
Power turbine combined supercharging, electric hydraulic booster, variable geometry turbocharger etc..It is existing to drive turbocharger by motor
The method for arranging that rotor improves its performance mainly has three kinds：The first is known as electric auxiliary turbine pressurizer, the only conduct of its motor
The motor of supercharger rotor is driven to use；Second is turbine generation booster, i.e. the turbocharger of selection of small is to subtract
The rotary inertia of lesser trochanter, reduce turbo-lag, when engine exhaust energy surplus, is driven using remainder of exhaust gas energy another
Turbine drives electrical power generators, improves the utilization rate of exhaust gas；The third is dynamoelectric and power generation turbocharger, that is, collects the above two in one
Body, the dynamoelectric machine of dynamoelectric and power generation turbocharger use under speed operation as motor, the conduct under high-speed working condition
Generator, power-generation energy-storage.Dynamoelectric and power generation turbocharger has electricity auxiliary and generating function concurrently, and still, this dynamotor turns
Son is integrated with turbocharger rotor to be fitted together, and can make whole rotor-support-foundation system quality increase, inertia increase, causes adding for rotor
Fast degradation；4th kind is rotor clutch type motor-driven power generation turbocharger, and arrangement of clutch can control dynamotor to turn
Son is combined with separating with armature spindle, so as to reduce the rotary inertia of rotor-support-foundation system.Although above-mentioned four kinds of methods can solve turbine
Lag issues, but booster discharge capacity and the utilization of engine perfect match and raising exhaust energy under full working scope cannot be taken into account
Rate.
The arrangement of the dynamotor of existing electric auxiliary turbine pressurizer mainly has two kinds：One kind is side scheme, patent
" electric auxiliary turbine pressurizer " (ZL200710013120.5) proposes a kind of dynamotor side scheme, i.e., pacifies motor
On the outside of the compressor impeller of turbocharger, its rotor is connected firmly with supercharger rotor axis, and This solution avoids turbine
Influence of the high temperature to motor is held, but the cantilever configuration mode of dynamotor destroys the balance of original turbocharger, makes
The dynamic performance of electrically assisted turbocharger rotor system is deteriorated, and easily causes vibrations are excessive to cause to touch at high speed
Rub failure.Another kind puts scheme, patent " electric auxiliary turbine pressure charging system and its control method " in being
(CN201610295408.5) propose and scheme and its control method are put in a kind of motor；Patent " send out by rotor clutch type electric
Electric turbocharger " (ZL201310007013.7) proposes and scheme is put in a kind of motor, i.e. dynamotor, arrangement of clutch
It is arranged on around armature spindle in space of the intermediate with compressor composition, dynamoelectric and power generation function is by the control of arrangement of clutch with turning
Sub- axis is combined with separating, and this scenario-frame is compact, and the rotary inertia of rotor is small, to the performance shadow of turbocharger rotor system
Minimum is rung, but is put in motor, high temperature has a great influence dynamotor electronic component.
The content of the invention
Cannot in order to solve to there is " turbo lag " phenomenon, booster discharge capacity currently with exhaust-driven turbocharger
With engine under full working scope perfect match, the utilization rate of two level exhaust energy is low the problem of, the present invention proposes a kind of motor
External scheme, devises a kind of electric auxiliary turbine pressurizer with dynamotor, arrangement of clutch and power turbine.
Electricity auxiliary disengaging type power turbine combined supercharging device of the present invention, including it is compressor, turbine, armature spindle, electronic
Generator, power turbine, bearing, gear-box, arrangement of clutch, exhaust gas bypass device, the compressor and turbine are separately positioned on
Armature spindle both ends, the intermediate coordinate between compressor and turbine and by floating bearing and armature spindle, the turbine
Cooling water cavity is equipped between intermediate, the gear-box, arrangement of clutch are located in the space that compressor is formed with intermediate, enclose
Set around armature spindle, gear-box lower end gear is fixedly connected with electromagnetic clutch clutch plate, and can pass through arrangement of clutch
Control is combined with separating with armature spindle, and the gear-box left end is connected by first shaft coupling with dynamotor, the gear
Case right end is connected by second shaft coupling with power turbine, and the dynamotor can drive armature spindle to turn by gear-box
Dynamic, the power turbine is arranged in parallel with the turbocharger, and the power turbine can drive the dynamotor to send out
Electricity at the same exhaust energy can also directly be passed back to armature spindle by gear-box, the wastegate device can track
The pressure value of blower outlet, controls exhaust gas bypass valve opening size.
Preferably, the power turbine is connected by gear-box with the dynamotor.
Preferably, the power turbine is radial turbine, and is arranged in series in engine and air with turbocharger
Between, the power turbine exhaust gas inlet is exported by the turbine exhaust of exhaust duct and turbocharger and exhaust gas bypass branch pipe
It is connected, the exhaust gas of engine discharge first passes through turbocharger turbine, enters back into the power turbine.
Preferably, the dynamotor is High-speed DC brushless motor-generator, can use as motor, also can
Used as generator, the dynamotor is arranged on the outside of turbocharger as stand-by motor, by gear-box by energy
Amount is delivered to armature spindle.
Preferably, the arrangement of clutch includes electromagnetic clutch clutch plate, electromagnetic clutch for friction-type electromagnetic clutch
Driving disc spacing pressing.The electromagnetic clutch clutch plate includes sleeve, armature, driven friction disk, driven friction disk and the armature consolidation
Together, and with sleeve it is fixedly connected, the sleeve is fixedly connected with gear, and the electromagnetic clutch clutch plate passes through air axis
Hold and coordinate with armature spindle.The electromagnetic clutch driving disc spacing pressing includes active friction plate, slip ring, coil, iron core, the active friction
Piece is fixedly connected with iron core, and the electromagnetic clutch driving disc spacing pressing is connected with armature spindle by spline.
Preferably, the axle sleeve of the air bearing and bearing body are added using lightweight, high-strength materials such as titanium alloy, aluminium alloys
Work forms.
In the present invention, the setting of arrangement of clutch realizes gear-box from the armature spindle of turbocharger according to different operating mode knots
Close with separating.The setting of power turbine realizes the utilization of two level exhaust gas overbottom pressure, improves the economy of engine.The turbine
Booster will be in three kinds of electronic additional mechanical supercharging, power-off zero load, power-generation energy-storage working statuses under engine full working scope.Power whirlpool
Wheel will be in two kinds of additional mechanical supercharging, power-generation energy-storage working statuses under engine full working scope.
When the turbocharger is in engine start, acceleration or low speed high load, exhaust gas by-pass valve is fully closed, gear-box
Combined, powered by control circuit to dynamotor, dynamotor passes through gear-box as motor with supercharger rotor axis
The operating of supercharger rotor axis is driven, meanwhile, dynamotor also drives power turbine to rotate, and is formed and carried on the back at booster turbine end
Pressure, accelerates booster operating.At this time, gear-box and turbine drive compressor to rotate together, compressor compressed air, can be instantaneous
Air input of engine by air is improved, is solved the problems, such as " turbo lag ".
When engine is in general operating mode, exhaust gas by-pass valve is fully closed, and arrangement of clutch control gear-box is separated with armature spindle,
Booster is in power-off light condition, and control circuit changes dynamotor as generator mode, passes through gear by power turbine
Case drives dynamotor power-generation energy-storage.At this time, the turbocharger is only driven equivalent to conventional turbocharger by turbine
Coaxial compressor operating, the separation of gear-box and armature spindle, reduces the rotary inertia of rotor-support-foundation system, reduces rotor because of matter
Exhaust energy loses caused by amount increases, meanwhile, generated electricity using power turbine, improve the utilization rate of exhaust energy.
When engine is in high-speed high-load operating mode, high engine speeds operation, arrangement of clutch controls gear-box and rotor
Axis separates, and booster is in power-off light condition, and it is generator mode to control dynamotor, when the supercharging pressure of blower outlet
When power exceedes compressor back pressure limits value, control exhaust gas by-pass valve be in larger opening, most of exhaust gas without turbine, but
Power turbine is driven together with two level exhaust gas by bypass branch, dynamotor power generation is driven, when under compressor delivery pressure
When falling below back pressure limits value, control exhaust gas by-pass valve is in compared with small guide vane, realizes booster discharge capacity and high engine speeds work
Condition perfect match.
When engine is in high speed running on the lower load, high engine speeds operating, torque demand is small, and engine is arranged at this time
The exhaust gas flow gone out is sufficient, and the energy that turbine provides is more than the energy that compressor needs to consume, and control arrangement of clutch makes gear-box
Combined with supercharger rotor axis, it is generator mode to control dynamotor, and the exhaust energy of this part surplus is converted into electricity
Can, and the rotating speed of armature spindle is limited, by tracking the pressure value of blower outlet, it is medium that control exhaust gas by-pass valve is maintained at some
Aperture.Under this operating mode, the unnecessary energy of armature spindle and two level exhaust energy are converted to electricity by dynamotor as generator
It and can be stored in storage battery, improve the utilization rate of exhaust energy, improve the economy of engine.
In conclusion the invention has the advantages that：(1) realized by arrangement of clutch under different operating modes, gear
The combination of case and turbocharger rotor axis effectively reduces the rotary inertia of turbocharger rotor system, significantly with separating
Reduce the energy loss caused by rotor moment of inertia increase, improve the stability and reliability of turbocharger operation.
Preferable boost pressure and air demand are capable of providing, solves the problems, such as turbo-lag, engine with supercharger accelerating ability difference, improvement is started
Machine low-speed performance and discharge.
(2) drive dynamotor to generate electricity by power turbine, enable the two level exhaust gas after booster turbine does work
Amount is fully used, and improves exhaust energy utilization rate.
(3) dynamotor, which realizes, integrates motor and generator, makes the turbocharger small, knot
Structure is compacter.The electronic and reasonable conversion of power generation mode, effectively make use of fuel energy, realizes turbocharger in difference
The efficient distribution and utilization of energy under operating mode.Electric machine external, effectively prevent influence of the high temperature to dynamotor electronic component.
(4) under high engine speeds operating mode, the accurate of exhaust gas flow is adjusted by exhaust gas by-pass valve, realizes turbine
Booster and matched well of the engine under full working scope, improve the performance of engine.
Brief description of the drawings
The structure diagram of Fig. 1 electricity auxiliary disengaging type power turbine combined supercharging devices of the present invention.
The overall structure diagram of Fig. 2 electricity auxiliary disengaging type power turbine combined supercharging devices of the present invention.
The structure diagram of gear-box gear and its arrangement of clutch described in Fig. 3.
In figure：1- armature spindles, 2- compressor impellers, 3- compressor casings, 4- gear-boxes, 5- thrust bearings, 6- intermediates, 7-
Turbine case, 8- cooling water cavities, 9- turbine wheels, the first sealing rings of 10-, 11- floating bearings, 12- bolts, 13- arrangement of clutch,
The second sealing rings of 14-, 15- air bearing, 16- sealing shrouds, 17- dynamotor, 18- first shaft couplings, the second shaft couplings of 19-
Device, 20- power turbines, 21- discharge ducts, 22- turbines, 23- exhaust gas bypass branch pipes, 24- wastegate devices, 25- calm the anger
Machine, 26- gears, 27- sleeves, 28- armature, 29- driven friction disks, 30- active friction plates, 31- slip rings, 32- coils, 33- iron
Core, 34- electromagnetic clutch driving disc spacing pressings, 35- electromagnetic clutch clutch plates.
Embodiment
For the technical characterstic of clearer explanation this programme, the present invention will be described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1~2, electricity auxiliary disengaging type power turbine combined supercharging device of the present invention, including compressor 25, whirlpool
Wheel 22, intermediate 6, armature spindle 1, floating bearing 11, dynamotor 17, gear-box 4, power turbine 20, air bearing 15, from
Attach together and put 13, wastegate device 24.The compressor and turbine are separately positioned on the both ends of armature spindle 1, the compressor
Including compressor casing 3, compressor impeller 2, the turbine includes turbine case 7, turbine wheel 9.The intermediate 6 is located at compressor
Between turbine, respectively it is connected, and is coordinated by floating bearing 11 and armature spindle 1, the intermediate with gear-box 4, turbine case 7
Sealed close to one end of turbine with armature spindle 1 by the first sealing ring 10, cooling water cavity is equipped between the intermediate and turbine
8, the cooling medium of the cooling water cavity is water, can reduce waste-gas heat to intermediate transmission, the intermediate 6 is close to gear-box
4 one end is provided with thrust bearing 5, the axially position for intermediate.The gear-box 4 is arranged on centre around armature spindle 1
In the space that body is formed with compressor, gear-box lower end gear 26 is fixedly connected with electromagnetic clutch clutch plate 35, described
Gear-box can be combined with separating by the control of arrangement of clutch 13 with armature spindle 1, and the gear-box passes through sealing shroud 16 and rotor
Axis 1 coordinates, and is provided with the second sealing ring 14 between gear-box and sealing shroud 16, the gear-box 4 by bolt 12 respectively with pressure
Mechanism of qi shell 3, intermediate 6 connect.The dynamotor 17 is connected by first shaft coupling 18 with 4 left end of gear-box, described dynamic
Power turbine 20 is connected by second shaft coupling 19 with 4 right end of gear-box.The turbocharger carries exhaust gas bypass system, exhaust gas
23 both ends of bypass branch pipe are welded to connect with enmgine exhaust, turbine exhaust pipeline 21 respectively, the exhaust gas bypass branch pipe 23
Equipped with wastegate device 24, the wastegate device 24 can track the pressure value of blower outlet, control exhaust gas
Bypass valve opening size, the power turbine exhaust gas inlet by the turbine exhaust outlet of exhaust duct 21 and turbocharger and
Exhaust gas bypass branch pipe 23 is connected.
Specifically, the power turbine 20 is arranged in series for radial turbine, with turbocharger, by by booster whirlpool
The exhaust gas driven rotation of two level exhaust gas and bypass branch after the acting of wheel 22, so as to drive dynamotor to generate electricity by gear-box
Accumulation of energy.The gear-box 4 is by bevel gear and spur gear transmission.The dynamotor 17 is High-speed DC brushless electric
Generator, can control dynamotor to switch between motor, generator both of which according to Different Work Condition of Engine.
The air bearing 15 is aerostatic bearing, which is the sliding bearing by the use of gas as lubricant, has high temperature resistant, nothing
The features such as pollution, and high rotating speed is capable of providing, reduce vibration and noise.
Specifically, as shown in figure 3, the arrangement of clutch 13 includes electromagnetic clutch clutch plate for friction-type electromagnetic clutch
35th, electromagnetic clutch driving disc spacing pressing 34.The electromagnetic clutch clutch plate includes sleeve 27, armature 28, driven friction disk 29, described
Driven friction disk and armature are consolidated, and are fixedly connected with sleeve, and the gear 26 is fixedly connected with sleeve, the electromagnetism
Clutch driven plate is coordinated by air bearing 15 and armature spindle 1.The electromagnetic clutch driving disc spacing pressing include active friction plate 30,
Slip ring 31, coil 32, iron core 33, the active friction plate are fixedly connected with iron core, and the electromagnetic clutch driving disc spacing pressing 34 is with turning
Sub- axis 1 is connected by spline.
According to engine different operating mode and load condition, the working status residing for the turbocharger is specific as follows：
When engine start, acceleration or low speed high load, exhaust gas by-pass valve 24 is fully closed, and electromagnetic clutch coil 32 is powered, electricity
Magnet clutch driving disc spacing pressing 34 is attracted, and driven friction disk 29 is combined with active friction plate 30, by control circuit to dynamotor
17 power supplies, dynamotor drive supercharger rotor axis to operate as motor by gear-box 4, meanwhile, dynamotor is also
Drive power turbine 20 to rotate, back pressure is formed at booster turbine end, accelerate booster operating.At this time, gear-box 4 and turbine 22
Compressor 25 is driven to rotate together, compressor compressed air, can instantaneously improve air input of engine by air, solve " turbo lag " and ask
Topic.
When engine is in general operating mode, exhaust gas by-pass valve 24 is fully closed, and electromagnetic clutch coil 32 powers off, active friction
Piece 30 is separated with driven friction disk 29, and turbocharger is in power-off light condition, and coaxial compressor is only driven by turbine 22
25 operatings, control circuit change dynamotor 17 as generator mode, electronic hair are driven by gear-box 4 by power turbine 20
Electric power generation accumulation of energy.
When engine is in high-speed high-load operating mode, electromagnetic clutch coil 32 powers off, active friction plate 30 with it is driven
Friction plate 29 separates, and turbocharger is in power-off light condition, and control dynamotor 17 is generator mode, works as compressor
When the boost pressure of 25 outlets exceedes compressor back pressure limits value, control exhaust gas by-pass valve 24 is in larger opening, most of useless
Gas drives power turbine 20 by bypass branch 23 without turbine 22 together with two level exhaust gas, drives dynamotor
17 power generations, when compressor delivery pressure drops below back pressure limits value, control exhaust gas by-pass valve 24 is in compared with small guide vane, real
Existing booster discharge capacity and high engine speeds operating mode perfect match.
When engine is in high speed running on the lower load, the energy that turbine 22 provides is more than the energy that compressor 25 needs to consume
Amount.Electromagnetic clutch coil 32 is powered, and driven friction disk 29 is combined with active friction plate 30, and control dynamotor 17 is power generation
Machine pattern, electric energy is converted into by the exhaust energy of this part surplus, and limits the rotating speed of armature spindle, by tracking blower outlet
Pressure value, control exhaust gas by-pass valve 24 be maintained at some medium aperture.Under this operating mode, dynamotor 17 is as power generation
Machine, is converted to electrical energy for storage in storage battery by the unnecessary energy of armature spindle and two level exhaust energy, improves exhaust energy
Utilization rate, improves the economy of engine.
The present invention is illustrated by the above embodiment, but it is to be understood that, the above embodiment is only used for lifting
Example and explanation, are not intended to and limit the present invention in the range of described embodiment.It will be appreciated by those skilled in the art that
, more kinds of variants and modifications can also be made according to the present invention by instructing, these variants and modifications belong to the present invention
Protection domain.
Claims (4)
1. electricity auxiliary disengaging type power turbine combined supercharging device, including compressor (25), turbine (22), intermediate (6), floating axle
(11), armature spindle (1) are held, the compressor and turbine are separately positioned on the both ends of armature spindle, and the intermediate is located at compressor
Coordinate between turbine and by floating bearing and armature spindle, it is characterised in that：The electricity auxiliary disengaging type power turbine is compound
Booster further includes dynamotor (17), gear-box (4), power turbine (20), wastegate device (24), arrangement of clutch
(13), the gear-box, arrangement of clutch are located at compressor with being set in the space of intermediate composition, around armature spindle, the tooth
Roller box lower end gear (26) is fixedly connected with electromagnetic clutch clutch plate (35), and control that can be by arrangement of clutch and armature spindle
(1) combine with separating, the gear-box left end is connected by first shaft coupling (18) with dynamotor (17), the gear-box
Right end is connected by second shaft coupling (19) with power turbine (20), the electricity auxiliary disengaging type power turbine combined supercharging device band
There is exhaust gas bypass system.
2. electricity auxiliary disengaging type power turbine combined supercharging device according to claim 1, it is characterised in that：The clutch dress
Put (13) includes electromagnetic clutch clutch plate (35), electromagnetic clutch driving disc spacing pressing (34), the electricity for friction-type electromagnetic clutch
Magnet clutch clutch plate includes sleeve (27), armature (28), driven friction disk (29), and the driven friction disk and armature are fixedly arranged at
Together, and with sleeve it is fixedly connected, the gear (26) is fixedly connected with sleeve, and the electromagnetic clutch clutch plate (35) passes through
Air bearing (15) coordinates with armature spindle (1)；The electromagnetic clutch driving disc spacing pressing include active friction plate (30), slip ring (31),
Coil (32), iron core (33), the active friction plate are fixedly connected with iron core, the electromagnetic clutch driving disc spacing pressing (34) and rotor
Axis (1) is connected by spline.
3. electricity auxiliary disengaging type power turbine combined supercharging device according to claim 1, it is characterised in that：The electronic hair
Motor (17) is High-speed DC brushless motor-generator, and the dynamotor is arranged on outside turbocharger as stand-by motor
Side, armature spindle is transferred energy to by gear-box (4).
4. electricity auxiliary disengaging type power turbine combined supercharging device according to claim 1, it is characterised in that：The power whirlpool
It is radial turbine to take turns (20), and is arranged in series with turbocharger, and the power turbine exhaust gas inlet passes through exhaust duct
(21) the turbine exhaust outlet with turbocharger and exhaust gas bypass branch pipe (23) are connected.
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| CN201810011631.1A CN107939513B (en) | 2018-01-05 | 2018-01-05 | Electric auxiliary clutch type power turbine composite supercharger |
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| CN107939513A true CN107939513A (en) | 2018-04-20 |
| CN107939513B CN107939513B (en) | 2023-12-22 |
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| CN111536057A (en) * | 2020-05-09 | 2020-08-14 | 太原科技大学 | Two-stage compressor of hydrogen fuel turbine range extender |
| CN112922707A (en) * | 2019-12-05 | 2021-06-08 | 中国船舶重工集团公司第七一一研究所 | Power turbine power generation device |
| CN114135499A (en) * | 2021-11-19 | 2022-03-04 | 中国北方发动机研究所(天津) | Series-parallel connection variable two-stage electric supercharger |
| CN114294105A (en) * | 2021-11-19 | 2022-04-08 | 东风商用车有限公司 | Power turbine system providing boost compensation and torque assist and method of utilizing same |
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Effective date of registration: 20240703 Address after: 030000 Plant 2, No. 30, Gangyuan North Road, Zhongbei High-tech Industrial Development Zone, Taiyuan City, Shanxi Province Patentee after: Shanxi teboyou New Energy Technology Co.,Ltd. Country or region after: China Address before: 030024 Shanxi province Taiyuan city Berlin District Wan wa flow Road No. 66 Patentee before: TAIYUAN University OF SCIENCE AND TECHNOLOGY Country or region before: China |