CN106285924A - Improve the device of capacity usage ratio in exhaust gases of internal combustion engines - Google Patents
Improve the device of capacity usage ratio in exhaust gases of internal combustion engines Download PDFInfo
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- CN106285924A CN106285924A CN201510357808.XA CN201510357808A CN106285924A CN 106285924 A CN106285924 A CN 106285924A CN 201510357808 A CN201510357808 A CN 201510357808A CN 106285924 A CN106285924 A CN 106285924A
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- air
- internal combustion
- exhaust pipe
- tail gas
- expanded exhaust
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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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- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The present invention provides a kind of and improves the device of capacity usage ratio in exhaust gases of internal combustion engines.This device is divided into expanded exhaust pipe the exhaustor of internal combustion engine and releases exhaustor, to expanded exhaust pipe segmentation, and in good time reflation technology in using expanded exhaust pipe, on the premise of not increasing exhaust resistance, heat energy in tail gas is converted into expansion energy, and its expansion energy original with tail gas promotes the acting of tail gas turbine after superposing.This device can utilize turbine more to be can use mechanical energy from the tail gas of internal combustion engine.The main application direction of this technology is: tail gas turbine charges through decelerator pushing generator, the accumulator for oil-electric vehicle, makes oil-electric vehicle charge in realizing without the traveling of additional energy consumption when using internal combustion engine drive pattern.
Description
Technical field
The present invention relates to a kind of device improving the efficiency of internal combustion engine, energy in especially a kind of raising exhaust gases of internal combustion engines
The device of utilization rate, belongs to technical field of internal combustion engines.
Background technology
Discharge loss is in the every loss of internal combustion engine one of large percentage, and it is almost suitable with useful work, if
Energy in waste gas can be converted into useful work, the efficiency of internal combustion engine just can be made to be significantly improved, now extensively adopt
Exhaust gas turbocharge scheme be exactly at this exploration and practice on the one hand carried out.Along with exhaust gas turbocharge side
The application of case, the power per liter of internal combustion engine is significantly improved, but this scheme can not improve the thermal effect of internal combustion engine
Rate, shows that the fuel consumption index of boosting internal combustion engine does not significantly reduce, and this is primarily due to exhaust gas turbine
There is following defect in Pressurization scheme: (1) promotes waste gas exhaust-driven turbo-charger exhaust-gas turbo charger to add exhaust resistance, makes aerofluxus
Release lost work raise；(2) raising of admission pressure increases the pressure in compression stroke in cylinder, makes pressure
The lost work of contracting raises；(3) pressure that can make in compression and expansion stroke in cylinder due to the rising of admission pressure
Significantly raise with temperature, in order to avoid pressure and temperature is too high and damage machine, the amplitude of supercharging must be added
To limit, this just makes the energy in waste gas be not fully utilized.
Patent No. 201320008898.8, patent name is " air interchanger improving internal combustion engine thermal efficiency "
Utility model patent discloses one and branch aerofluxus can be used to reduce exhaust resistance, use series boosting by waste gas
In expansion work be converted into greatest extent useful work, use the compression initial stage suitably discharge inner pressure of air cylinder limit compression
With the method for the pressure of cylinder in expansion stroke, the energy in waste gas is transformed into greatest extent useful work, significantly
Improve internal combustion engine thermal efficiency.Though this method has been demonstrated feasible and effective, but there are two major defects in it,
(1) because it to discharge the pressure in cylinder in induction stroke latter stage, actual participation burning in causing cylinder
Air quantity is difficult to measure and control, and causes fuel air ratio to be also difficult to accurately control；(2) comprised because of tail gas
Having in energy is heat energy rather than expansion energy greatly, and above-mentioned art solutions can not utilize in tail gas
Heat energy.Therefore, want to make the energy in tail gas be utilized more fully, it is necessary to technique scheme is entered
Row further improves.
Summary of the invention
The technical problem to be solved in the present invention is: provide one neither to increase exhaust resistance, again can be in tail gas
Heat energy is converted into expansion energy so that it is expansion energy original with tail gas superposes, and promotes tail gas turbine to do the most again
Merit, this device can utilize turbine to obtain more available mechanical power from tail gas.
For solving above-mentioned technical problem, the technical solution used in the present invention is: in a kind of raising exhaust gases of internal combustion engines
The device of capacity usage ratio, including cylinder head, expanded exhaust pipe and release exhaustor, electromagnetic valve, compressed air
Pipe, control unit of engine, air accumulator, air pump, air inlet pipe, turbine and turbine connection dish.Described swollen
Swollen exhaustor, according to the aerofluxus angular interval between each cylinder, is divided at least two sections, and each section of expanded exhaust pipe is at tail gas
The inlet end of turbine converges, described each section of expanded exhaust pipe respectively by compressed air hose through electromagnetic valve and air accumulator
Connecting, air accumulator is connected with air pump, and the inlet end of air pump is connected with the air inlet pipe of internal combustion engine, expanded exhaust pipe
Outlet side connects with acoustic filter after tail gas turbine, and the outlet side releasing exhaustor connects with acoustic filter.
In described cylinder head corresponding to each cylinder be provided with expanded exhaust valve and release air bleeding valve corresponding, phase
The exhaust duct separated mutually.
Described expanded exhaust pipe and release exhaustor are positioned at the same side of internal combustion engine.
Crank angle range between opening angle and the closedown angle releasing air bleeding valve of described expanded exhaust valve covers
Whole exhaust stroke.After using branch exhaust technique, two-way aerofluxus is respectively completed expanded exhaust process and the row of release
Gas process, the opening angle of expanded exhaust valve and the closedown angle sum releasing air bleeding valve are equal to existing exhaust valve for internal combustion engine
The duration angle opened can complete exhaust stroke.
Described expanded exhaust pipe, according to the aerofluxus angular interval between each cylinder, is divided at least two sections, and each section expands row
Trachea converges at the inlet end of tail gas turbine.
Described each section of expanded exhaust pipe is connected with air accumulator through electromagnetic valve by compressed air hose respectively, air accumulator and gas
Pump connects, and the inlet end of air pump is connected with the air inlet pipe of internal combustion engine.
Described electromagnetic valve is provided by control unit of engine (ECU) and controls electric energy.
The reason that the present invention arranges expansion and two exhaust branch of release is as follows: the tail gas that two exhaust phases are discharged
Taking their own roads, do not interfere with each other, the expansion work carried in the tail gas with the discharge of expanded exhaust branch road promotes tail gas turbine
Machine, makes the energy in tail gas be obtained by；Turbine, direct warp is walked around from the waste gas releasing exhaust branch discharge
Acoustic filter enters air, makes the exhaust resistance of release exhaust phase reduce.This measure is for making full use of in waste gas
Energy, and do not increase exhaust resistance and create condition.
The present invention uses the reason of expanded exhaust pipe segmentation as follows: expanded exhaust pipe is according to the aerofluxus between each cylinder
Angular interval, is divided at least two sections, and the aerofluxus interval angles in each section of expanded exhaust pipe should ensure that its row connected
Without folded angle of release between air valve, each section of expanded exhaust pipe is converged at the inlet end of tail gas turbine, so, to the greatest extent may be used
Can make full use of in tail gas while expansion work, it is also possible to reduce in exhaustor pressure oscillation to internal combustion engine operation mistake
The adverse effect of journey.
The present invention uses the reason of reflation in good time in expanded exhaust pipe as follows: in order to the converting heat in tail gas
For useful work, in good time injecting compressed air in each section of expanded exhaust pipe, compressed air is in touching exhaustor
High-temperature tail gas after, volume can expand, it is achieved the heat energy in tail gas is converted into expansion energy, this part
Original expansion energy is superimposed expansion energy with tail gas, and just can obtain more expansion energy promotes tail gas
Turbine.
Energy in waste gas can be changed into available mechanical energy through tail gas turbine by the present invention to greatest extent,
Energy owing to comprising in tail gas is almost suitable with the useful work of internal combustion engine, so after implementing the present invention, Ke Yicong
The mechanical energy obtained on tail gas turbine output shaft is the most considerable.According to existing technical conditions, implementing this
After invention, the main application direction of the mechanical energy that obtains from tail gas turbine output shaft is: utilize tail gas turbine
Machine is through decelerator pushing generator, and the accumulator for oil-electric vehicle is charged, and makes oil electric mixed dynamic vapour
Car is when using internal combustion engine drive pattern, it is possible to achieve without charging in the traveling of additional energy consumption.Reach energy-saving and emission-reduction
Purpose.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the composition schematic diagram of the present invention；
Fig. 2 is expanded exhaust valve cam structural representation；
Fig. 3 is to release exhaust-valve cam structural representation；
Fig. 4 is the layout schematic diagram of each air valve and air inlet and exhaust piper on cylinder cover；
Fig. 5 is the layout schematic diagram of each exhaustor in exhaustor side on cylinder cover
In Fig. 1,1, acoustic filter, 2, release exhaustor, 3, turbine, 4, connection dish, 5, one section is swollen
Swollen exhaustor, 6, two-stage nitration expanded exhaust pipe, 7, cylinder cover, 8, expanded exhaust valve, 9, intake valve, 10,
Release air bleeding valve, 11, electromagnetic valve, 12, compressed air hose, 13, control unit of engine (ECU), 14
Air accumulator, 15, air pump, 16 air inlet pipe 17, air filter；
Point that in Fig. 2, capitalization English letter is marked correspondence respectively: A, lower dead center, B, top dead centre, C, swollen
Swollen exhaust valve opening point, F, expanded exhaust valve reach maximum point, and G, expanded exhaust valve close close point, D, existing
Exhaust valve for internal combustion engine closes close point；
Point that in Fig. 3, capitalization English letter is marked correspondence respectively: A, lower dead center, B, top dead centre, H, push away
Exhaust valve opening point, I, release exhaust valve open to maximum point, C, existing internal combustion engine release exhaust valve opening point,
D, release exhaust valve close close point (closing close point with existing exhaust valve for internal combustion engine to overlap).
In Fig. 4, Fig. 5, the part of each digitized representation is consistent with Fig. 1.
Detailed description of the invention
1) branch aerofluxus: make phase corresponding to each cylinder on existing Dual Over Head Camshaft IC engine cylinder lid
The mutually exhaust duct of isolation, and exhaust cam is made corresponding amendment, according to the expanded exhaust stage in exhaust stroke and
Release exhaust phase difference in time, be divided into expanded exhaust branch road and release aerofluxus to prop up the approach of aerofluxus
Road, utilizes the drive mechanism of air valve to control the air bleeding valve of the two exhaust branch respectively, makes expanded exhaust valve swollen
Swollen exhaust phase is opened, and closes releasing exhaust phase；Release air bleeding valve to open at release exhaust phase, aerofluxus
At the end of close.
2) expanded exhaust pipe segmentation: the connected mode of expanded exhaust pipe and tail gas turbine and existing internal combustion engine
The connection approximation of pressure swing type exhaust turbocharging system exhaustor, is divided at least two sections expanded exhaust pipe, makes each
Without folded angle of release between air bleeding valve in section expanded exhaust pipe, each section of expanded exhaust pipe is through connection dish and tail gas turbine
Air inlet connect.
3) in good time reflation: set an electromagnetic valve in each section of expanded exhaust pipe respectively and connect with air pump and air accumulator
Connect, control unit of engine the control electric energy of electromagnetic valve is provided, when corresponding swollen in a certain section of expanded exhaust pipe
When swollen air bleeding valve completely closes, opening electromagnetic valve, in corresponding expanded exhaust pipe, appropriate injection compresses sky in good time
Gas, after compressed air absorbs the heat in tail gas, volume will expand and produce expansion work, in tail gas
Heat energy be converted into expansion energy, so can be obtained by more expansion energy to promote tail gas turbine.
Claims (7)
1. improve a device for capacity usage ratio in exhaust gases of internal combustion engines, including cylinder head 7,
Expanded exhaust pipe 5,6 and release exhaustor 2, electromagnetic valve 11, compressed air hose 12, send out
Motivation control unit 13, air accumulator 14, air pump 15, air inlet pipe 16, turbine 3 and whirlpool
Turbine connection dish 4.Described expanded exhaust pipe, according to the aerofluxus angular interval between each cylinder, is divided
Being at least two sections, each section of expanded exhaust pipe is converged at the inlet end of tail gas turbine 3, described
Each section of expanded exhaust pipe is respectively by compressed air hose 12 through electromagnetic valve 11 with air accumulator 14 even
Connecing, air accumulator 14 is connected with air pump 15, the inlet end of air pump 15 and the air inlet of internal combustion engine
Pipe 16 connects, and the outlet side of expanded exhaust pipe connects with acoustic filter 1 after tail gas turbine,
The outlet side releasing exhaustor 2 connects with acoustic filter 1.
2. cylinder head 7 described in is provided with and expanded exhaust valve and release corresponding to each cylinder
The exhaust duct that air bleeding valve is corresponding, spaced-apart.
3. expanded exhaust pipe 5,6 described in and release exhaustor 2 are positioned at the same side of internal combustion engine.
4. between opening angle and the closedown angle releasing air bleeding valve 10 of expanded exhaust valve 8 described in
Crank angle range cover whole exhaust stroke.
5. described in, expanded exhaust pipe 5,6 is according to the aerofluxus angular interval between each cylinder, is divided into
At least two sections, each section of expanded exhaust pipe is converged at the inlet end of tail gas turbine.
6. each section of expanded exhaust pipe 5,6 described in respectively by compressed air hose 12 through electromagnetic valve
11 are connected with air accumulator 14, and air accumulator 14 is connected with air pump 15, the air inlet of air pump 15
End is connected with the air inlet pipe 16 of internal combustion engine.
7. electromagnetic valve described in is provided by control unit of engine (ECU) 13 and controls electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357808.XA CN106285924B (en) | 2015-06-26 | 2015-06-26 | Device for improving energy utilization rate in tail gas of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357808.XA CN106285924B (en) | 2015-06-26 | 2015-06-26 | Device for improving energy utilization rate in tail gas of internal combustion engine |
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| CN106285924A true CN106285924A (en) | 2017-01-04 |
| CN106285924B CN106285924B (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510357808.XA Active CN106285924B (en) | 2015-06-26 | 2015-06-26 | Device for improving energy utilization rate in tail gas of internal combustion engine |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877964A (en) * | 2011-07-13 | 2013-01-16 | 福特环球技术公司 | Method and system of turbocharged engine |
| CN103195593A (en) * | 2012-01-06 | 2013-07-10 | 伍德沃德公司 | Engine using multiple exhaust system and method |
| CN203214163U (en) * | 2013-01-09 | 2013-09-25 | 张建民 | Air interchanger for improving efficiency of internal combustion engine |
| US20140190458A1 (en) * | 2013-01-08 | 2014-07-10 | Southwest Research Institute | EGR Rate Control For Internal Combustion Engine With Dual Exhaust-Ported Cylinders |
| CN103987937A (en) * | 2011-12-27 | 2014-08-13 | 三菱重工业株式会社 | Electric supercharger using waste heat from internal combustion engine and power supply method thereof |
| JP2014214638A (en) * | 2013-04-23 | 2014-11-17 | 株式会社豊田中央研究所 | Engine device with turbo supercharger |
| CN104213998A (en) * | 2013-05-30 | 2014-12-17 | 通用电气公司 | System and method of operating an internal combustion engine |
| CN205206952U (en) * | 2015-06-26 | 2016-05-04 | 张建民 | Energy utilization's device in improvement internal -combustion engine tail gas |
-
2015
- 2015-06-26 CN CN201510357808.XA patent/CN106285924B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877964A (en) * | 2011-07-13 | 2013-01-16 | 福特环球技术公司 | Method and system of turbocharged engine |
| CN103987937A (en) * | 2011-12-27 | 2014-08-13 | 三菱重工业株式会社 | Electric supercharger using waste heat from internal combustion engine and power supply method thereof |
| CN103195593A (en) * | 2012-01-06 | 2013-07-10 | 伍德沃德公司 | Engine using multiple exhaust system and method |
| US20140190458A1 (en) * | 2013-01-08 | 2014-07-10 | Southwest Research Institute | EGR Rate Control For Internal Combustion Engine With Dual Exhaust-Ported Cylinders |
| CN203214163U (en) * | 2013-01-09 | 2013-09-25 | 张建民 | Air interchanger for improving efficiency of internal combustion engine |
| JP2014214638A (en) * | 2013-04-23 | 2014-11-17 | 株式会社豊田中央研究所 | Engine device with turbo supercharger |
| CN104213998A (en) * | 2013-05-30 | 2014-12-17 | 通用电气公司 | System and method of operating an internal combustion engine |
| CN205206952U (en) * | 2015-06-26 | 2016-05-04 | 张建民 | Energy utilization's device in improvement internal -combustion engine tail gas |
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| CN106285924B (en) | 2020-05-05 |
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