CN108757164A - Improve the device and method of engine exhaust turbine generating efficiency - Google Patents
Improve the device and method of engine exhaust turbine generating efficiency Download PDFInfo
- Publication number
- CN108757164A CN108757164A CN201810747913.8A CN201810747913A CN108757164A CN 108757164 A CN108757164 A CN 108757164A CN 201810747913 A CN201810747913 A CN 201810747913A CN 108757164 A CN108757164 A CN 108757164A
- Authority
- CN
- China
- Prior art keywords
- turbogenerator
- generating efficiency
- speed changer
- engine
- power turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/10—Engines with prolonged expansion in exhaust turbines
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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
- 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
- F01D15/12—Combinations with mechanical gearing
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The present invention relates to a kind of device and methods improving engine exhaust turbine generating efficiency,Including power turbine,Speed changer,Controller,Shift of transmission executing agency,Rectification circuit,Turbogenerator,Accumulator,Power turbine is mounted in the exhausting waste gas pipeline of engine,The armature spindle of power turbine is pierced by by exhausting waste gas pipeline and is driven with the input axis connection of speed changer,The shaft connection of the output shaft and turbogenerator of speed changer is driven,The rectified circuit of turbogenerator is electrically connected in accumulator,The crankshaft rotational speed sensor of monitoring speed of crankshaft is provided on engine,Crankshaft rotational speed sensor,Shift of transmission executing agency is electrically connected with controller respectively,The present invention is generated electricity using engine exhaust turbine,By the transmission ratio for adjusting speed changer,Realize the asynchronous of turbogenerator shaft rotating speed and power turbine rotating speed,So that turbogenerator remains between the best generating efficiency range of speeds,Generating efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of device and methods improving engine exhaust turbine generating efficiency.
Background technology
Vehicle energy saving is one of three big themes of automobile industry development.Due to the aggravation of energy consumption, vehicle energy saving problem
Receive the concern of people.Related research data shows that the sent out ability of motor vehicle fuel burning only has one third or so to be had
Effect utilizes, and other energy are discharged into air, not only cause the waste of the energy, also create environmental pollution.Automobile is sent out
Motivation power output accounts for the 25%~42% of fuel combustion total amount of heat, remaining is in the form of waste heat from the discharges such as cooling water and tail gas
Energy outside vehicle accounts for the 58%~75% of burning gross energy.It has very important significance it can be seen that carrying out recycling to exhaust energy
Therefore, make full use of the waste heat of motor vehicle emission that should be that our real automobiles are energy saving, reduce a research direction of discharge.
The waste heat of motor exhaust has temperature high, and pressure is big, the fast feature of flow velocity, therefore tail gas contained energy is wasting
Heat in account for major part.It is the important of raising capacity usage ratio if recycling this portion of energy from tail gas and being used
One of approach had not only saved the energy but also had made the reduction of vehicle operating cost.To meet growth requirement, the diesel engine produced at present all uses
Certain technology utilizes the energy in tail gas, such as exhaust gas turbocharge, refrigeration air-conditioner, power generation, heating, improvement fuel etc..?
In all above methods, only exhaust gas turbocharge realizes industrialization, and other methods are due to technology and other aspects, still
In development or experimental stage, has not been put to and commercially produce, and emission power generation technology is exactly a new waste gas utilization technology.
Compared with existing waste gas utilization technology, emission power generation has mechanism simple, easily manufactured, need not have to power section big
The advantages of changing, and not influencing power output.But since turbogenerator just has most only in certain range of speeds
Good generating efficiency, existing turbine generation inefficiency.
Invention content
The present invention proposes a kind of device and method improving engine exhaust turbine generating efficiency.
Scheme is used by the present invention solves technical problem, a kind of dress improving engine exhaust turbine generating efficiency
It sets, including power turbine, speed changer, controller, shift of transmission executing agency, rectification circuit, turbogenerator, accumulator,
Power turbine is mounted in the exhausting waste gas pipeline of engine, and the armature spindle of power turbine is pierced by by exhausting waste gas pipeline and speed change
The input axis connection of device is driven, and the shaft connection of the output shaft and turbogenerator of speed changer is driven, and turbogenerator is rectified
Circuit is electrically connected in accumulator, and the crankshaft rotational speed sensor of monitoring speed of crankshaft, speed of crankshaft sensing are provided on engine
Device, shift of transmission executing agency are electrically connected with controller respectively.
Further, the controller is car running computer.
Further, exhaust gas relief valve is provided on the exhausting waste gas pipeline of engine, exhaust gas relief valve is located at engine
Between power turbine.
Further, the output shaft of speed changer, output shaft warp beam are supported through thrust ball bearing.
Further, the input axis connection of shaft coupling and speed changer is driven by armature spindle, and the output shaft of speed changer is through shaft coupling
The connection transmission of the shaft of device and turbogenerator.
A method of improving engine exhaust turbine generating efficiency：The exhaust gas that engine is discharged when working enters exhaust gas row
Feed channel and dynamic impact problem turbine make its rotation, power turbine rotation drive the armature spindle rotation for being secured to be installed together,
The rotation of armature spindle externally exports acting, and armature spindle is connected by speed changer with the shaft of turbogenerator, turbogenerator hair
The electricity gone out charges by rectification circuit to accumulator, and car running computer starts according to the input-signal judging of crankshaft rotational speed sensor
Operating mode residing for machine sends out control signal, after shift of transmission executing agency receives signal to shift of transmission executing agency
Control speed changer is upshiftd or is downshifted, so that turbogenerator is maintained within the scope of optimum speed.
Compared with prior art, the invention has the advantages that：Simple in structure, reasonable design is useless using engine
Air turbine generates electricity, and by adjusting the transmission ratio of speed changer, realizes the difference of turbogenerator shaft rotating speed and power turbine rotating speed
Step so that turbogenerator remains between the best generating efficiency range of speeds, and generating efficiency is greatly improved.
Description of the drawings
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the present invention.
In figure：
1- engines；2- exhaust pipes；3- controllers；4- pressure relief valves；5- power turbines；6- shift of transmission executing agency；
7- speed changers；8- turbogenerators；9- rectification circuits；10- accumulators；11- thrust ball bearings A；12- thrust ball bearings B；13-
Crankshaft rotational speed sensor.
Specific implementation mode
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of device improving engine exhaust turbine generating efficiency, including power turbine, speed changer, control
Device processed, shift of transmission executing agency, rectification circuit, turbogenerator, accumulator, power turbine are mounted on the exhaust gas of engine
In discharge duct, the armature spindle of power turbine is pierced by by exhausting waste gas pipeline to be driven with the input axis connection of speed changer, speed changer
Output shaft and turbogenerator shaft connection be driven, the rectified circuit of turbogenerator in accumulator be electrically connected, start
The crankshaft rotational speed sensor of monitoring speed of crankshaft, crankshaft rotational speed sensor, shift of transmission executing agency difference are provided on machine
It is electrically connected with controller.
In the present embodiment, the controller is car running computer.
In the present embodiment, it is provided with exhaust gas relief valve on the exhausting waste gas pipeline of engine, prevents engine from arranging
The phenomenon that gas has some setbacks influences the exhaust effect of engine, and exhaust gas relief valve is between engine and power turbine.
In the present embodiment, the output shaft of speed changer, output shaft warp beam are supported through thrust ball bearing.
In the present embodiment, the input axis connection of shaft coupling and speed changer is driven by armature spindle, the output shaft warp of speed changer
The connection transmission of the shaft of shaft coupling and turbogenerator.
A method of improving engine exhaust turbine generating efficiency：The exhaust gas that engine is discharged when working enters exhaust gas row
Feed channel and dynamic impact problem turbine make its rotation, power turbine rotation drive the armature spindle rotation for being secured to be installed together,
The rotation of armature spindle externally exports acting, and armature spindle is connected by speed changer with the shaft of turbogenerator, turbogenerator hair
The electricity gone out charges by rectification circuit to accumulator, and collected engine rotational speed signal is passed to car running computer, drives a vehicle
Operating mode residing for input-signal judging engine of the computer according to crankshaft rotational speed sensor, to shift of transmission, executing agency sends out
Signal is controlled, shift of transmission executing agency becomes after receiving signal according to pre-stored information control control inside car running computer
Fast device is upshiftd or is downshifted, so that turbogenerator is maintained within the scope of optimum speed.
When engine is in speed operation, capacity is smaller, and the rotating speed of power turbine is relatively low, is downshifted with this
Transmission so that turbogenerator shaft obtains higher rotating speed, and shift of transmission executing agency inside car running computer according to depositing at this time
The information of storage controls transmission downshifts, and alternator shaft obtains rotating speed more higher than power turbine；When engine is in high speed work
When condition, capacity is larger, and the rotating speed of power turbine is higher, and generator does not need to too high rotating speed at this time, it is therefore desirable to right
Speed changer carries out upshift transmission, and car running computer, which receives crankshaft rotational speed sensor input-signal judging and goes out engine, is in high speed shape
State sends out signal control speed changer to shift of transmission executing agency and upshifts,.Alternator shaft is obtained to be turned than power turbine
The sub- lower rotating speed of axis, by the transmission ratio for adjusting speed changer so that alternator shaft rotating speed is maintained within the scope of optimum speed,
Improve generating efficiency.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of device improving engine exhaust turbine generating efficiency, it is characterised in that：Including power turbine, speed changer, control
Device processed, shift of transmission executing agency, rectification circuit, turbogenerator, accumulator, power turbine are mounted on the exhaust gas of engine
In discharge duct, the armature spindle of power turbine is pierced by by exhausting waste gas pipeline to be driven with the input axis connection of speed changer, speed changer
Output shaft and turbogenerator shaft connection be driven, the rectified circuit of turbogenerator in accumulator be electrically connected, start
The crankshaft rotational speed sensor of monitoring speed of crankshaft, crankshaft rotational speed sensor, shift of transmission executing agency difference are provided on machine
It is electrically connected with controller.
2. the device according to claim 1 for improving engine exhaust turbine generating efficiency, it is characterised in that：The control
Device is car running computer.
3. the device according to claim 2 for improving engine exhaust turbine generating efficiency, it is characterised in that：Engine
Exhaust gas relief valve is provided on exhausting waste gas pipeline, exhaust gas relief valve is between engine and power turbine.
4. the device according to claim 1 for improving engine exhaust turbine generating efficiency, it is characterised in that：Speed changer
Output shaft, output shaft warp beam are supported through thrust ball bearing.
5. the device according to claim 1 for improving engine exhaust turbine generating efficiency, it is characterised in that：Armature spindle will
The input axis connection of shaft coupling and speed changer is driven, and the output shaft of speed changer is connected through the shaft of shaft coupling and turbogenerator to be passed
It is dynamic.
6. a kind of method improving engine exhaust turbine generating efficiency is given up using the engine as claimed in claim 3 that improves
The device of air turbine generating efficiency, it is characterised in that：The exhaust gas that engine is discharged when working enters exhausting waste gas pipeline and impacts
Power turbine makes its rotation, power turbine rotation drive the armature spindle rotation for being secured to be installed together, the rotation of armature spindle
Externally output acting, armature spindle are connected by speed changer with the shaft of turbogenerator, and the electricity that turbogenerator is sent out passes through
Rectification circuit charges to accumulator, the work residing for input-signal judging engine of the car running computer according to crankshaft rotational speed sensor
Condition sends out control signal to shift of transmission executing agency, and shift of transmission executing agency controls speed changer after receiving signal
It is upshiftd or is downshifted, so that turbogenerator is maintained within the scope of optimum speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747913.8A CN108757164A (en) | 2018-07-10 | 2018-07-10 | Improve the device and method of engine exhaust turbine generating efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747913.8A CN108757164A (en) | 2018-07-10 | 2018-07-10 | Improve the device and method of engine exhaust turbine generating efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757164A true CN108757164A (en) | 2018-11-06 |
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ID=63973001
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810747913.8A Pending CN108757164A (en) | 2018-07-10 | 2018-07-10 | Improve the device and method of engine exhaust turbine generating efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047946A (en) * | 2021-03-30 | 2021-06-29 | 安徽江淮汽车集团股份有限公司 | Automobile power device and automobile |
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|---|---|---|---|---|
| EP2492458A1 (en) * | 2009-10-23 | 2012-08-29 | Mitsubishi Heavy Industries, Ltd. | Turbo compound system and method for operating same |
| CN203383860U (en) * | 2013-07-17 | 2014-01-08 | 广西大学 | Automobile exhaust comprehensive utilization energy-saving system |
| CN103982312A (en) * | 2014-04-30 | 2014-08-13 | 天津大学 | System and method for active heat management of engine based on energy feedback of power turbine |
| CN203911829U (en) * | 2014-02-24 | 2014-10-29 | 冯伟忠 | Novel frequency conversion system for thermal power station |
| CN204041128U (en) * | 2014-06-03 | 2014-12-24 | 西安陕鼓动力股份有限公司 | A kind of blast furnace vapour drags standby fan generator set |
| CN105531458A (en) * | 2013-12-04 | 2016-04-27 | 三菱重工业株式会社 | Turbo compound system control device |
| CN206582024U (en) * | 2016-08-25 | 2017-10-24 | 现代自动车株式会社 | Turbo-compound system for vehicle |
| CN107780980A (en) * | 2017-11-29 | 2018-03-09 | 福州大学 | One kind is based on the improved turbogenerator experimental rig of exhaust-driven turbo-charger exhaust-gas turbo charger and its application method |
| CN208473994U (en) * | 2018-07-10 | 2019-02-05 | 福州大学 | Improve the device of engine exhaust turbine generating efficiency |
-
2018
- 2018-07-10 CN CN201810747913.8A patent/CN108757164A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2492458A1 (en) * | 2009-10-23 | 2012-08-29 | Mitsubishi Heavy Industries, Ltd. | Turbo compound system and method for operating same |
| CN203383860U (en) * | 2013-07-17 | 2014-01-08 | 广西大学 | Automobile exhaust comprehensive utilization energy-saving system |
| CN105531458A (en) * | 2013-12-04 | 2016-04-27 | 三菱重工业株式会社 | Turbo compound system control device |
| CN203911829U (en) * | 2014-02-24 | 2014-10-29 | 冯伟忠 | Novel frequency conversion system for thermal power station |
| CN103982312A (en) * | 2014-04-30 | 2014-08-13 | 天津大学 | System and method for active heat management of engine based on energy feedback of power turbine |
| CN204041128U (en) * | 2014-06-03 | 2014-12-24 | 西安陕鼓动力股份有限公司 | A kind of blast furnace vapour drags standby fan generator set |
| CN206582024U (en) * | 2016-08-25 | 2017-10-24 | 现代自动车株式会社 | Turbo-compound system for vehicle |
| CN107780980A (en) * | 2017-11-29 | 2018-03-09 | 福州大学 | One kind is based on the improved turbogenerator experimental rig of exhaust-driven turbo-charger exhaust-gas turbo charger and its application method |
| CN208473994U (en) * | 2018-07-10 | 2019-02-05 | 福州大学 | Improve the device of engine exhaust turbine generating efficiency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047946A (en) * | 2021-03-30 | 2021-06-29 | 安徽江淮汽车集团股份有限公司 | Automobile power device and automobile |
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Application publication date: 20181106 |