CN106640244A - Electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization method and system - Google Patents
Electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization method and system Download PDFInfo
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- CN106640244A CN106640244A CN201610934736.5A CN201610934736A CN106640244A CN 106640244 A CN106640244 A CN 106640244A CN 201610934736 A CN201610934736 A CN 201610934736A CN 106640244 A CN106640244 A CN 106640244A
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- Prior art keywords
- turbine
- rankine cycle
- exhaust gas
- electronic
- differential mechanism
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
Abstract
The invention discloses an electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization method and an electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization system, and relates to the field of automobile electronics. The system comprises an electronic turbine, a waste-gas turbine, a Rankine cycle, a differential mechanism and an electric generator. When an engine works, a gas inlet system is pressurized by the electronic turbine; waste gas does not drive a charging turbine any longer, but drives an electric generating turbine which is connected with the differential mechanism; the waste gas drives the electric generating turbine to rotate by utilizing kinetic energy of the waste gas; high-temperature waste gas which passes through the electric generating turbine flows into the Rankine cycle; an output shaft of the Rankine cycle is also connected with the differential mechanism to serve as another input of the differential mechanism; the output of the differential mechanism drives the electric generator to generate electricity; electric energy which is generated by the electric generator is stored in a storage battery for the electronic turbine, a compressor of the Rankine cycle and a vehicle electronic device to use.
Description
Technical field
The present invention relates to field of automobile electronic control, specifically a kind of set electron turbine, exhaust gas turbine and Rankine cycle
Engine exhaust comprehensive utilization technique.
Background technology
Chemical energy is converted into heat energy and is converted into mechanical energy then by engine by combustion of fossil fuels, but all of
The thermal efficiency of motivation is not high, even the larger Diesel engine of lower heat of combustion, its thermal efficiency highest is also only 40% left
It is right.The energy major part that fuel combustion is produced be used to overcome friction or be taken away by waste gas, and the energy that wherein waste gas is taken away is accounted for always
30% or so of energy.In order to improve the capacity usage ratio of engine, method generally used now is using exhaust gas turbocharge skill
The torque output of engine can be improved 40% or so by art, exhaust turbine pressuring technology, though so, engine it is very big one
Energy is divided still to be taken away by the waste gas of high temperature.In addition, the shortcoming of exhaust gas turbocharge is, and when the engine speed is lower, waste gas
Turbine cannot be promoted by waste gas, cause engine to be pressurized, and the energy of waste gas can not fully be obtained by.For this Bayerische Motorne Werke Aktiengeellschaft
Proposition is pressurized using electronic turbine to engine, and allows exhaust gas-driven turbine to drive electrical power generators.The benefit of do so
It is no matter the rotating speed of engine is how many, electronic turbine neatly can require to adjust admission pressure according to supercharging, even if
So, the waste gas of high temperature has still taken away many energy, and energy is still without being fully used.
The content of the invention
The present invention proposes the engine exhaust total energy approach side of a kind of set electron turbine, exhaust gas turbine and Rankine cycle
Method and system, it is further added by a set of Rankine cycle, Rankine cycle and exhaust gas turbine on the basis of BMW engine booster technology
Drive engine to be generated electricity jointly by differential mechanism, so can not only utilize the kinetic energy of engine exhaust but also can utilize and start
The heat energy of machine waste gas, improves the utilization rate of exhaust energy.
Technical scheme is as follows:
The engine exhaust method of comprehensive utilization of set electron turbine proposed by the present invention, exhaust gas turbine and Rankine cycle is:Start
Machine is installed and provides supercharging for the gas handling system of engine by motor-driven electronic turbine, and the high-speed exhaust gas that engine is excluded drive
Exhaust gas turbine is input into as one of generator, and the waste gas for flowing through exhaust gas turbine further flows into Rankine cycle system, and Rankine is followed
The output of loop systems is input into as another of generator, and the output of exhaust gas turbine and Rankine cycle is used as the defeated of differential mechanism
Enter, it is common to drive differential mechanism to rotate, an output is coupled as, the output drives generator to be generated electricity, the power storage of generation
It is that compressor, electronic turbine and the vehicle electronic device of Rankine cycle system is powered in battery.
The present invention using can following system realize that engine exhaust is comprehensively utilized, system includes:Cylinder, send out
Motor, differential mechanism, exhaust gas turbine, air filter, electronic turbine and Rankine cycle.The air filter input with it is big
Gas phase is led to, and output end is connected with the compressor inlet of electronic turbine;The exhaust outlet of compressor of electronic turbine connects cylinder
Admission line;The exhaust manifold of cylinder connects the exhaust gas entrance of exhaust gas turbine;The exhausting waste gas pipeline of exhaust gas turbine with
The heat exchanger of Rankine cycle contacts, and exhausting waste gas pipe outlet is communicated with air;The sharf of exhaust gas turbine is followed with Rankine
The steam turbine of ring is connected by differential mechanism input;The output shaft end of differential mechanism is connected with the input shaft end of generator;Generate electricity
The electric energy output end of machine connects battery input;The output end of battery and compressor feeder ear, the electronics of Rankine cycle system
Turbine feeder ear and other vehicle electronic device feeder ears are connected.
The present invention passes through poor by its a set of Rankine cycle of increase in prior art basis, Rankine cycle and exhaust gas turbine
Fast device drives engine to be generated electricity jointly, so makes full use of the kinetic energy and heat energy of engine exhaust, further increases useless
The utilization rate of gas energy.
Description of the drawings
Fig. 1 is the signal of the engine exhaust energy comprehensive utilization system of set electron turbine, exhaust gas turbine and Rankine cycle
Figure;
In figure:1. the Rankine of 2. differential mechanism of generator, 3. exhaust gas turbine, 4. cylinder, 5. air filter, 6. electronic turbine 7.
Circulation.
Specific embodiment
The step explanation present invention is carried out below in conjunction with accompanying drawing:
Referring to Fig. 1, the engine exhaust utilization system of a kind of set electron turbine, exhaust gas turbine and Rankine cycle includes:Send out
Motor 1, differential mechanism 2, exhaust gas turbine 3, cylinder 4, air filter 5, electronic turbine 6 and Rankine cycle 7.Work as engine
During work, gas handling system is pressurized by electronic turbine, and waste gas no longer drives charging turbine, but drives what is be connected with differential mechanism
Power generating turbine, exhaust gas utilization itself kinetic energy drives power generating turbine to rotate;Rankine cycle is flowed into through the high-temp waste gas of power generating turbine,
The output shaft of Rankine cycle is equally connected with differential mechanism and be input into as another of differential mechanism, and the output of differential mechanism drives and generates electricity
Machine is generated electricity, the power storage that generator sends supplied for electronic turbine, compressor of Rankine cycle and vehicle-mounted in battery
Electronic equipment is used.
The annexation of system components is as follows:
The input of air filter 5 is communicated with air, and output end is connected with the compressor inlet of electronic turbine 6.Electronic turbine 6
Exhaust outlet of compressor connect the admission line of cylinder 4.The exhaust manifold of cylinder 4 connects the waste gas of exhaust gas turbine 3
Entrance.The exhausting waste gas pipeline of exhaust gas turbine 3 contacts with the heat exchanger of Rankine cycle 7, the outlet of exhausting waste gas pipeline with
Air is communicated.The sharf of exhaust gas turbine 3 is connected with the steam turbine output shaft of Rankine cycle by the input of differential mechanism 2,
The output shaft end of differential mechanism 2 is connected with the input shaft end of generator 1, and the electric energy output end of generator 1 connects battery input, stores
Battery output is connected with the feeder ear and other vehicle electronic device feeder ears of electronic turbine 6.
When automobile starting, air enters the compressor inlet of electronic turbine 6 by air filter 5, now by electric power storage
The compressor of battery-powered electronic turbine 6 is compressed to air and is operated air feeding cylinder 4, engine
The high heat energy of discharge, the waste gas of kinetic energy are carried out by the blade turbomachine that exhaust manifold is transported to exhaust gas turbine 3 after the work of cylinder 4
The conversion of kinetic energy --- mechanical energy, the kinetic energy impact turbine blade band moving axis of waste gas rotates, and at this moment completes waste gas kinetic energy
Utilize;After effect by the blade of exhaust gas turbine 3, the waste gas of high heat energy is into the warm in Rankine cycle 7, with Rankine cycle
Exchanger carries out heat energy conversion, and the heat energy after conversion drives vapor to impact the steam turbine of Rankine cycle, drives turbine shaft to enter
Row rotation, at this moment completes the utilization of heat energy from waste gas.The sharf of exhaust gas turbine 3 passes through differential with the turbine shaft of Rankine cycle
Device 2 combines, and the output rotary shaft of differential mechanism 2 drives generator 1 to generate electricity, and the electric energy of generation is carried through wires in the middle of battery
Store, for supplying electronic turbine and other vehicle electronic devices, now complete the comprehensive utilization of heat energy from waste gas, kinetic energy
Circulation.
Claims (3)
1. the engine exhaust method of comprehensive utilization of a kind of set electron turbine, exhaust gas turbine and Rankine cycle, it is characterised in that send out
Motivation is installed and provides supercharging for the gas handling system of engine by motor-driven electronic turbine, and the exhaust gas driven that engine is excluded is given up
Air turbine is input into as one of generator, and the waste gas for flowing through exhaust gas turbine further flows into Rankine cycle system, Rankine cycle
The output of system is input into as another of generator, and the output of exhaust gas turbine and Rankine cycle is coupled as by differential mechanism
One output, the output drives generator to be generated electricity, and the power storage of generation is the compressor of electronic turbine in battery
Power with vehicle electronic device.
2. the engine exhaust utilization system of a kind of set electron turbine, exhaust gas turbine and Rankine cycle, including:Generator
(1), differential mechanism(2), exhaust gas turbine(3), cylinder(4), air filter(5), electronic turbine(6)And Rankine cycle
(7);The air filter(5)Input is communicated with air, output end and electronic turbine(6)Compressor inlet be connected;
Electronic turbine(6)Exhaust outlet of compressor connect cylinder(4)Admission line;Cylinder(4)Exhaust manifold connect
Exhaust gas turbine(3)Exhaust gas entrance;Exhaust gas turbine(3)Exhausting waste gas pipeline and Rankine cycle(7)Heat exchanger contact,
Exhausting waste gas pipe outlet is communicated with air;Exhaust gas turbine(3)The steam turbine of sharf and Rankine cycle pass through differential mechanism(2)
Input is connected;Differential mechanism(2)Output shaft end and generator(1)Input shaft end connection;Generator(1)Electric energy output
Termination battery input;The output end of battery and the compressor feeder ear of Rankine cycle system, electronic turbine feeder ear with
And other vehicle electronic device feeder ears are connected.
3. the engine exhaust utilization system of set electron turbine, exhaust gas turbine and Rankine cycle according to claim 2,
It is characterized in that:The exhaust gas turbine(3)Individually adopt blade turbomachine.
Priority Applications (1)
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CN201610934736.5A CN106640244A (en) | 2016-11-01 | 2016-11-01 | Electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization method and system |
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CN201610934736.5A CN106640244A (en) | 2016-11-01 | 2016-11-01 | Electronic turbine, waste-gas turbine and Rankine cycle integrated engine waste gas energy comprehensive utilization method and system |
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CN201874651U (en) * | 2010-12-04 | 2011-06-22 | 孟庆江 | Engine tail gas generator |
CN102644499A (en) * | 2012-04-25 | 2012-08-22 | 清华大学 | Brayton cycle-based waste heat utilization system and waste heat utilizing engine |
CN102840026A (en) * | 2011-06-23 | 2012-12-26 | 湖南大学 | System for recycling waste heat energy of exhaust gas of internal combustion engine by using air circulation |
CN104454137A (en) * | 2014-10-29 | 2015-03-25 | 长城汽车股份有限公司 | Engine device |
CN104632357A (en) * | 2014-12-30 | 2015-05-20 | 清华大学 | Two-stage supercharging system of internal combustion engine |
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2016
- 2016-11-01 CN CN201610934736.5A patent/CN106640244A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101230802A (en) * | 2006-12-06 | 2008-07-30 | 通用电气公司 | Variable coupling of high pressure rotor and low pressure rotor of turbofan engine |
CN201874651U (en) * | 2010-12-04 | 2011-06-22 | 孟庆江 | Engine tail gas generator |
CN102840026A (en) * | 2011-06-23 | 2012-12-26 | 湖南大学 | System for recycling waste heat energy of exhaust gas of internal combustion engine by using air circulation |
CN102644499A (en) * | 2012-04-25 | 2012-08-22 | 清华大学 | Brayton cycle-based waste heat utilization system and waste heat utilizing engine |
CN104454137A (en) * | 2014-10-29 | 2015-03-25 | 长城汽车股份有限公司 | Engine device |
CN104632357A (en) * | 2014-12-30 | 2015-05-20 | 清华大学 | Two-stage supercharging system of internal combustion engine |
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