CN107191282A - A kind of gas recirculation system of rotary engine - Google Patents
A kind of gas recirculation system of rotary engine Download PDFInfo
- Publication number
- CN107191282A CN107191282A CN201710629405.5A CN201710629405A CN107191282A CN 107191282 A CN107191282 A CN 107191282A CN 201710629405 A CN201710629405 A CN 201710629405A CN 107191282 A CN107191282 A CN 107191282A
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- China
- Prior art keywords
- rotary engine
- air inlet
- pipe
- waste gas
- blast pipe
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0052—Feedback control of engine parameters, e.g. for control of air/fuel ratio or intake air amount
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/36—Control for minimising NOx emissions
-
- 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
- Y02T10/40—Engine management systems
Abstract
The invention provides a kind of gas recirculation system of rotary engine, including rotary engine, catalytic conversion system and electronic control unit ECU；The housing of the rotary engine is provided with blast pipe and air inlet pipe, is connected between the blast pipe and air inlet pipe by branch pipe, and EGR control valve door and charge air cooler are sequentially provided with according to the distance away from air inlet pipe on the branch pipe；The end of the blast pipe is provided with catalytic conversion system；The end of the blast pipe is provided with NOxConcentration sensor, positioned at the output end of catalytic conversion system；Speed probe is installed in the rotating shaft of the rotary engine, the rotating speed for measuring rotary engine；The electronic control unit ECU and catalytic conversion system, EGR control valve door, NOxConcentration sensor and speed probe connection.EGR Technology can be combined by the present invention with rotary engine, allow portion to participate in working cycles again.
Description
Technical field
The present invention relates to dynamic power machine or rotary engine field, more particularly to a kind of waste gas of rotary engine is followed again
Loop system.
Background technology
With continuing to develop for engine technology, people also more aggravate for the pollutant catabolic gene of engine exhaust emission
Depending on.Scientific analysis shows, containing hundreds of different compound in automobile-used reciprocating diesel tail gas, wherein main pollutant
There are carbon monoxide (CO), hydrocarbon (HC), oxynitrides (NOx), sulfur dioxide, smokeshade PM (some heavy metals
Compound, lead compound, black smoke and mist of oil), foul smell (formaldehyde etc.).Because O in tail gas2Content is higher, therefore HC and CO discharge capacitys
It is less, the 1/10 of general only gasoline engine：NOxDischarge capacity is generally in the same order of magnitude with gasoline engine；And PM discharge capacity is about
For tens times of gasoline engine.Therefore, NO is reducedxIt is the major subjects of diesel locomotive tail gas catalytic purification with PM discharges.
This problem becomes apparent in diesel-fuel RC engine.Due to the special structure of rotary engine so that it is not
High compression ratio with reciprocating engine so that burning can not very fully, in addition, the combustion chamber of rotary engine is more narrow
It is long so that flame easily extinguishing phenomenon occurs in communication process.Unidirectional stream causes flame to propagate forward at a high speed, so as to cause combustion
The generation of a large amount of unburned hydrocarbons in room rear portion is burnt, the problems such as efficiency of combustion is low and seriously polluted is consequently leads to.As can be seen here, reduce
The NO of diesel rotor machinex, PM discharges and improve its efficiency of combustion, reduce waste of fuel and be significant.
The content of the invention
, can the invention provides a kind of gas recirculation system of rotary engine for Shortcomings in the prior art
So that EGR Technology to be combined with rotary engine, portion is allowed to participate in working cycles again.In combustion process
In, the oxygen content lower than the air maximum temperature in burning can be reduced, and can suppress the generation of nitrogen oxides, so that the row of reduction
Put.When ignition temperature is reduced, combustion chamber wall surface, the heat energy diverging of piston face can be reduced, the loss caused by thermal dissociation in addition
Also it can decrease.Part unburned fuel reenters combustion chamber and burnt simultaneously, serves the effect of energy-conservation.And
This patent is handled tail gas using urea seeding conversion equipment and particle trapper, further reduces pollutant,
Particularly NOxWith PM amount.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of gas recirculation system of rotary engine, including rotary engine, catalytic conversion system and Electronic Control
Unit ECU；The housing of the rotary engine is provided with blast pipe and air inlet pipe, passes through branch between the blast pipe and air inlet pipe
Pipe is connected, and EGR control valve door and charge air cooler are sequentially provided with according to the distance away from air inlet pipe on the branch pipe；The row
The end of tracheae is provided with catalytic conversion system, for reducing the nitrogen oxides NO in discharge gasxWith particulate matter PM；The row
The end of tracheae is provided with NOxConcentration sensor, positioned at the output end of catalytic conversion system；Pacify in the rotating shaft of the rotary engine
Fill speed probe, the rotating speed for measuring rotary engine；The electronic control unit ECU and catalytic conversion system, waste gas
Recirculation control valve door, NOxConcentration sensor and speed probe connection.
Further, the catalytic conversion system includes constant displacement pump, urea box, sprayer, catalytic reactor and micro particle catching
Device；The end of the blast pipe is installed by sprayer, catalytic reactor and particle trapper successively；The urea box by pipeline according to
It is secondary to be connected with constant displacement pump and sprayer import, in the sprayer outlet insertion blast pipe；In the catalytic reactor in proportion
Containing catalyst activity component, carrier and catalyst, for nitrogen oxides reduction NOx；The constant displacement pump and electronic control unit
ECU connections.
Further, the catalyst activity component is V2O5；The carrier is the TiO of Detitanium-ore-type2；The catalyst is
WO3Or MoO3。
Further, in addition to air inlet flowmeter and waste gas stream gauge；The air inlet flowmeter be arranged on air inlet pipe with
The air inlet pipe front end of branch pipe junction, the gas flow for detecting air inlet pipe；The waste gas stream gauge be arranged on branch pipe on and
Between EGR control valve door and charge air cooler, the flow for detecting waste gas in branch pipe；The air inlet flowmeter
It is connected respectively with electronic control unit ECU with exhaust gas flow meter.
Further, the electronic control unit ECU controls EGR control valve by the size of ER EGR Rate
The openings of sizes of door, the ER EGR Rate formula is η=Q2/(Q1+Q2), wherein：Q1For air inlet flow, by described
Air inlet flowmeter is drawn；Q2For the flow for waste gas in branch pipe, drawn by waste gas stream gauge.
Further, the ER EGR Rate is η≤25%.
Further, the NO that temperature sensor and temperature sensor are located at is additionally provided with the blast pipexConcentration sensor side
Side, the temperature sensor is connected with electronic control unit ECU, for detecting NOxThe operating temperature of concentration sensor.
Further, the NOxHeat shield or heat insulation foam are installed on the blast pipe that concentration sensor is installed.
The beneficial effects of the present invention are：
1. the gas recirculation system of rotary engine of the present invention, by being provided with catalytic conversion system, reduction
The NO of engine emissionxWith PM amount, the effect of environmental protection is served.
, can be with by installing charge air cooler on bye-pass 2. the gas recirculation system of rotary engine of the present invention
The waste gas after cooling is set to effectively reduce ignition temperature so that the heat loss reduction in combustion process.
3. the gas recirculation system of rotary engine of the present invention, connects air inlet and exhaust outlet by using branch pipe
Connect, the participation of high-temp waste gas accelerates the flowing of region air so that the combustion case in the insufficient region of burning has bright
It is aobvious to improve.
Brief description of the drawings
Fig. 1 is the gas recirculation system schematic diagram of rotary engine of the present invention.
Fig. 2 is catalytic conversion system schematic of the present invention.
In figure：
1- rotary engine；2- three-apexed rotors；3- catalytic reactors；4- particle trappers；5- speed probes；6- is vented
Pipe；7- air inlet pipe；8- EGR control valves door；9- air inlet flowmeters；10- waste gas stream gauge；11- charge air coolers；12- is urged
Change converting system；13- temperature sensors；14-NOxConcentration sensor；15- electronic control units ECU；16- constant displacement pumps；17- urinates
Plain case；18- sprayers.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
As shown in figure 1, a kind of gas recirculation system of rotary engine, it is characterised in that including rotary engine 1,
Catalytic conversion system 12 and electronic control unit ECU15；The housing of the rotary engine 1 is provided with blast pipe 6 and air inlet pipe
7, connected, be sequentially provided with the branch pipe according to the distance away from air inlet pipe 7 by branch pipe between the blast pipe 6 and air inlet pipe 7
EGR control valve door 8 and charge air cooler 11；The end of the blast pipe 6 is provided with catalytic conversion system 12, for reducing
Nitrogen oxides NO in discharge gasxWith particulate matter PM；The end of the blast pipe 6 is provided with NOxConcentration sensor 14, positioned at urging
Change the output end of converting system 12；Speed probe 5 is installed in the rotating shaft of the rotary engine 1, started for measuring rotor
The rotating speed of machine；The electronic control unit ECU15 and catalytic conversion system 12, EGR control valve door 8, NOxConcentration is passed
Sensor 14 and speed probe 5 are connected.
As shown in Fig. 2 the catalytic conversion system 12 includes constant displacement pump 16, urea box 17, sprayer 18, catalytic reactor
3 and particle trapper 4；The end of the blast pipe 6 is installed by sprayer 18, catalytic reactor 3 and particle trapper 4 successively；Institute
State urea box 17 to be connected with constant displacement pump 16 and the import of sprayer 18 successively by pipeline, the outlet of the sprayer 18 insertion blast pipe
In 6；Contain catalyst activity component, carrier and catalyst in the catalytic reactor 3 in proportion, for nitrogen oxides reduction
NOx；The constant displacement pump 16 is connected with electronic control unit ECU15.The catalyst activity component is V2O5；The carrier is sharp
The TiO of titanium ore type2；The catalyst is WO3Or MoO3.The operation principle of catalytic conversion system 12 is：The electronic control unit
ECU15 is by analyzing speed probe 5 and NOxThe data of concentration sensor 14, calculate the discharge rate of constant displacement pump 16, and urea leads to
Cross sprayer 18 to enter in blast pipe 6, urea generates NH after hydrolysis and pyrolytic reaction occur at high temperature3, in catalyst
Middle utilization NH3Reduce NOX, discharge N2, unnecessary NH3It is also reduced to N2.Particle trapper is used for collecting the PM in tail gas.
The course of work：In engine section, triangular rotor 2 is moved in the housing of rotary engine 1, the power of generation by
Bent axle is transmitted.Spark plug is responsible for igniting, and two spark plugs are symmetrical on center line, and the design of dual ignition plug causes burning more
To be abundant.Electronic control unit ECU15 is by analyzing speed probe 5 and NOxThe data of concentration sensor 14, control waste gas is again
The opening and closing of loop control valve 8.When rotary engine 1 is less than 3000r/min low speed, Smaller load and cold in idling, rotating speed
When, electronic control unit ECU15 control EGR control valves door 8 is closed, i.e., waste gas is not involved in recycling, it is to avoid engine
Performance is affected；When the rotating speed of rotary engine 1 is 3000-6000r/min, or during more than 6000r/min, Electronic Control
Unit ECU15 control EGR control valves door 8 is opened, and portion enters admission line by branch pipe, and charge air cooler can be with
High-temp waste gas is slightly cooled down, air, fuel and waste gas are mixed at air inlet, so that the unburned material in waste gas can
To obtain secondary utilization.In a word, electronic control unit ECU15 controls small part waste gas to participate in recycling, moreover, participating in recycling
Exhausted air quantity according to the different and different of engine speed, load, temperature and EGT, coordinate catalytic conversion system 12 for
The processing of tail gas, to reach the NO in waste gasXIt is minimum with PM contents.
Also include air inlet flowmeter 9 and waste gas stream gauge 10；The air inlet flowmeter 9 is arranged on air inlet pipe 7 and branch
The front end of air inlet pipe 7 of pipe junction, the gas flow for detecting air inlet pipe；The waste gas stream gauge 10 be arranged on branch pipe on,
And between EGR control valve door 8 and charge air cooler 11, the flow for detecting waste gas in branch pipe；The air inlet stream
Gauge 9 and waste gas stream gauge 10 are connected with electronic control unit ECU15 respectively.The electronic control unit ECU15 passes through waste gas
The size of recirculation rate, the openings of sizes of control EGR control valve door 8, the ER EGR Rate formula is η=Q2/
(Q1+Q2), wherein：Q1For air inlet flow, drawn by the air inlet flowmeter 9；Q2For the flow of branch pipe, pass through waste gas
Flowmeter 10 is drawn.ER EGR Rate η≤25%.
The NO that temperature sensor 13 and temperature sensor 13 are located at is additionally provided with the blast pipe 6xThe side of concentration sensor 14
Side, the temperature sensor 13 is connected with electronic control unit ECU15, for detecting NOxThe operating temperature of concentration sensor 14.
The NOxHeat shield or heat insulation foam are installed on the blast pipe 6 that concentration sensor 14 is installed.
For the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment to the embodiment, not
In the case of the substantive content of the present invention, any conspicuously improved, replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (8)
1. a kind of gas recirculation system of rotary engine, it is characterised in that including rotary engine (1), catalytic conversion system
Unite (12) and electronic control unit ECU (15)；
The housing of the rotary engine (1) is provided with blast pipe (6) and air inlet pipe (7), the blast pipe (6) and air inlet pipe
(7) connected between by branch pipe, EGR control valve door is sequentially provided with according to the distance away from air inlet pipe (7) on the branch pipe
And charge air cooler (11) (8)；The end of the blast pipe (6) is provided with catalytic conversion system (12), for reducing in discharge gas
Nitrogen oxides NOxWith particulate matter PM；The end of the blast pipe (6) is provided with NOxConcentration sensor (14), positioned at catalytic conversion
The output end of system (12)；Speed probe (5) is installed in the rotating shaft of the rotary engine (1), started for measuring rotor
The rotating speed of machine；
The electronic control unit ECU (15) and catalytic conversion system (12), EGR control valve door (8), NOxConcentration is passed
Sensor (14) and speed probe (5) connection.
2. the gas recirculation system of rotary engine according to claim 1, it is characterised in that the catalytic conversion system
System (12) includes constant displacement pump (16), urea box (17), sprayer (18), catalytic reactor (3) and particle trapper (4)；It is described
The end of blast pipe (6) is installed by sprayer (18), catalytic reactor (3) and particle trapper (4) successively；The urea box (17)
It is connected successively with constant displacement pump (16) and sprayer (18) import by pipeline, sprayer (18) the outlet insertion blast pipe (6)
It is interior；Contain catalyst activity component, carrier and catalyst in the catalytic reactor (3) in proportion, for nitrogen oxides reduction
NOx；The constant displacement pump (16) is connected with electronic control unit ECU (15).
3. the gas recirculation system of rotary engine according to claim 2, it is characterised in that the catalyst activity
Component is V2O5；The carrier is the TiO of Detitanium-ore-type2；The catalyst is WO3Or MoO3。
4. the gas recirculation system of rotary engine according to claim 1, it is characterised in that also including air inlet stream
Gauge (9) and waste gas stream gauge (10)；The air inlet flowmeter (9) is arranged on air inlet pipe (7) and the air inlet of branch pipe junction
Manage (7) front end, the gas flow for detecting air inlet pipe；The waste gas stream gauge (10) is arranged on branch pipe and positioned at waste gas
Between recirculation control valve door (8) and charge air cooler (11), the flow for detecting waste gas in branch pipe；The air inlet flowmeter
(9) it is connected respectively with electronic control unit ECU (15) with waste gas stream gauge (10).
5. the gas recirculation system of rotary engine according to claim 4, it is characterised in that the Electronic Control list
First ECU (15) passes through the size of ER EGR Rate, the openings of sizes of control EGR control valve door (8), the waste gas
Recirculation rate formula is η=Q2/(Q1+Q2),
Wherein：Q1For air inlet flow, drawn by the air inlet flowmeter (9)；
Q2For the flow of waste gas in branch pipe, drawn by waste gas stream gauge (10).
6. the gas recirculation system of rotary engine according to claim 5, it is characterised in that the waste gas recycling
Rate η≤25%.
7. the gas recirculation system of rotary engine according to claim 1, it is characterised in that the blast pipe (6)
On be additionally provided with the NO that temperature sensor (13) and temperature sensor (13) are located atxConcentration sensor (14) side, the temperature is passed
Sensor (13) is connected with electronic control unit ECU (15), for detecting NOxThe operating temperature of concentration sensor (14).
8. the gas recirculation system of rotary engine according to claim 1, it is characterised in that the NOxConcentration is sensed
Heat shield or heat insulation foam are installed on the blast pipe (6) that device (14) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629405.5A CN107191282A (en) | 2017-07-28 | 2017-07-28 | A kind of gas recirculation system of rotary engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629405.5A CN107191282A (en) | 2017-07-28 | 2017-07-28 | A kind of gas recirculation system of rotary engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191282A true CN107191282A (en) | 2017-09-22 |
Family
ID=59884614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710629405.5A Pending CN107191282A (en) | 2017-07-28 | 2017-07-28 | A kind of gas recirculation system of rotary engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191282A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255561A (en) * | 2020-01-15 | 2020-06-09 | 北京工业大学 | Control method of EGR (exhaust gas Recirculation) composite air inlet rotor engine |
| CN113374572A (en) * | 2021-06-29 | 2021-09-10 | 北京工业大学 | Pure hydrogen fuel rotor machine control method combined with EGR |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193522A (en) * | 2000-01-12 | 2001-07-17 | Toyota Motor Corp | Egr control device for internal combustion engine |
| US20110099977A1 (en) * | 2009-10-30 | 2011-05-05 | Kabushiki Kaisha Toyota Jidoshokki | Exhaust gas purification apparatus for internal combustion engine |
| CN204327283U (en) * | 2014-11-17 | 2015-05-13 | 潍柴动力股份有限公司 | A kind of vehicular engine |
| US20170120756A1 (en) * | 2015-10-30 | 2017-05-04 | Mazda Motor Corporation | Vehicle equipped with engine for driving a generator |
-
2017
- 2017-07-28 CN CN201710629405.5A patent/CN107191282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193522A (en) * | 2000-01-12 | 2001-07-17 | Toyota Motor Corp | Egr control device for internal combustion engine |
| US20110099977A1 (en) * | 2009-10-30 | 2011-05-05 | Kabushiki Kaisha Toyota Jidoshokki | Exhaust gas purification apparatus for internal combustion engine |
| CN204327283U (en) * | 2014-11-17 | 2015-05-13 | 潍柴动力股份有限公司 | A kind of vehicular engine |
| US20170120756A1 (en) * | 2015-10-30 | 2017-05-04 | Mazda Motor Corporation | Vehicle equipped with engine for driving a generator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255561A (en) * | 2020-01-15 | 2020-06-09 | 北京工业大学 | Control method of EGR (exhaust gas Recirculation) composite air inlet rotor engine |
| CN113374572A (en) * | 2021-06-29 | 2021-09-10 | 北京工业大学 | Pure hydrogen fuel rotor machine control method combined with EGR |
| CN113374572B (en) * | 2021-06-29 | 2022-08-09 | 北京工业大学 | Pure hydrogen fuel rotor machine control method combined with EGR |
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Application publication date: 20170922 |