CN109944688A - A kind of spark ignition type rotary polygonal piston engine of stratified combustion - Google Patents
A kind of spark ignition type rotary polygonal piston engine of stratified combustion Download PDFInfo
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- CN109944688A CN109944688A CN201910362895.6A CN201910362895A CN109944688A CN 109944688 A CN109944688 A CN 109944688A CN 201910362895 A CN201910362895 A CN 201910362895A CN 109944688 A CN109944688 A CN 109944688A
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- chamber
- piston engine
- cylinder body
- atomizer
- rotary polygonal
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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
Abstract
The invention belongs to field of internal combustion engine, provide a kind of spark ignition type rotary polygonal piston engine of stratified combustion, it include: cylinder body, its side is inserted with atomizer and glow plug, glow plug is located above atomizer, cylinder body inner sidewall offers precombustion chamber, and atomizer end and glow plug end are respectively positioned in precombustion chamber；Three-apexed rotor, it is movably set in cylinder body, it is formed between three-apexed rotor and inboard wall of cylinder block on three side walls of inlet plenum, discharge chambe and exhaust chamber three-apexed rotor and opens up combuster, each combustion chamber is tongued structures, one of combustion chamber is communicated with discharge chambe, and discharge chambe is communicated with precombustion chamber；It can be diffused in precombustion chamber and combustion chamber by the oil liquid that atomizer sprays, the indoor oil liquid gaseous mixture of burning can be lighted after the burning of precombustion chamber inner fluid.Compared with the prior art, the advantages of the present invention are as follows: improve reliability, the stability that rotary polygonal piston engine is lighted.
Description
Technical field
The invention belongs to field of internal combustion engine, and in particular to a kind of spark ignition type rotary polygonal piston engine of stratified combustion.
Background technique
Rotary polygonal piston engine is also known as Wankel engine, is a kind of rotary-piston type four-stroke engine, its main feature is that
The inner wall of rotary polygonal piston engine cylinder body is close on three vertex of three-apexed rotor, three-apexed rotor revolve around eccentric shaft it is same
When, and around itself rotation, planetary motion is done by gear engagement.The ratio between three-apexed rotor revolving speed and eccentric shaft revolving speed are 1:3.Triangle
When rotary engine works, with the planetary motion of three-apexed rotor, rotary compression gaseous mixture, in the upper dead center position of compression stage
Volume reaches minimum value.In compression process, compressed gaseous mixture is lighted in suitable time of ignition, passes through mixture combustion
Make gas expansion for doing work, active force is generated to three-apexed rotor, pushes three-apexed rotor rotation.Since rotary polygonal piston engine has body
The features such as long-pending small, light weight, power are greatly, the uniform high speed performance of output torque is good, is mainly used in unmanned plane, new-energy automobile
Equal fields.
Rotary polygonal piston engine main problem first is that poor combustion stability, burning it is insufficient, the main reason is that due to
The combustion chamber of rotary polygonal piston engine be it is flat, combustion path is long and narrow, and very big transverse direction can be generated in compression stage combustion chamber
Air-flow is easy flame blow-off, is unfavorable for the reliable ignition of gaseous mixture and stablizes burning, the burning for influencing rotary polygonal piston engine can
By property, causes oil consumption height, discharge poor, need to improve.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the status of the prior art, and provide a kind of lighting for stratified combustion
Formula rotary polygonal piston engine.
The technical scheme of the invention to solve the technical problem is: proposing a kind of spark ignition type triangle of stratified combustion
Rotary engine, comprising: cylinder body, side are inserted with atomizer and glow plug, and the glow plug is located on the atomizer
Side, the cylinder body inner sidewall offer precombustion chamber, and the atomizer end and the glow plug end are respectively positioned on the pre-burning
It is indoor；
Three-apexed rotor is movably set in the cylinder body, formed between the three-apexed rotor and the inboard wall of cylinder block into
Combuster is opened up on three side walls of three-apexed rotor described in gas chamber, discharge chambe and exhaust chamber, each combustion chamber is equal
For tongued structures, one of them described combustion chamber is communicated with the discharge chambe, and the discharge chambe is communicated with the precombustion chamber；
It can be diffused in the precombustion chamber and the combustion chamber by the oil liquid that the atomizer sprays, in precombustion chamber
The indoor oil liquid gaseous mixture of burning can be lighted after oil liquid burning.
In a kind of spark ignition type rotary polygonal piston engine of above-mentioned stratified combustion, on three side walls of the three-apexed rotor
Diversion trench is offered, each diversion trench is communicated with the corresponding combustion chamber.
In a kind of spark ignition type rotary polygonal piston engine of above-mentioned stratified combustion, the atomizer is located at one in precombustion chamber
End is provided with striker.
In a kind of spark ignition type rotary polygonal piston engine of above-mentioned stratified combustion, bias is inserted on the three-apexed rotor
Axis.
In a kind of spark ignition type rotary polygonal piston engine of above-mentioned stratified combustion, the cylinder body is opened close to inlet plenum side
Equipped with air inlet, cylinder body offers gas vent close to exhaust chamber side.
Compared with the prior art, the advantages of the present invention are as follows the spark ignition type rotary polygonal piston engine combustion chambers of the stratified combustion
And the indoor oil liquid of pre-burning is evenly distributed, the indoor oil liquid sustained combustion of pre-burning refires the indoor oil liquid gaseous mixture shape of burning
At flame, flame is not easy to be blown out by crossflow, improves reliability, stability that rotary polygonal piston engine is lighted.
Detailed description of the invention
Fig. 1 is the three-dimensional view of the spark ignition type rotary polygonal piston engine of this stratified combustion；
Fig. 2 is the cross-sectional view of the spark ignition type rotary polygonal piston engine of this stratified combustion；
Fig. 3 is the explosive view of the spark ignition type rotary polygonal piston engine of this stratified combustion.
Fig. 4 is atomizer three-dimensional view.
In figure, cylinder body 1, atomizer 2, glow plug 3, precombustion chamber 4, three-apexed rotor 5, inlet plenum 6, exhaust chamber 7, discharge chambe 8,
Diversion trench 9, striker 10, eccentric shaft 11, combustion chamber 12, air inlet 13, gas vent 14.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, the spark ignition type rotary polygonal piston engine of this stratified combustion, comprising: cylinder body 1, side are inserted with spray
Oil nozzle 2 and glow plug 3, glow plug 3 are located at 2 top of atomizer, and 1 inner sidewall of cylinder body offers precombustion chamber 4,2 end of atomizer
And 3 end of glow plug is respectively positioned in precombustion chamber 4；Three-apexed rotor 5 is movably set in cylinder body 1, three-apexed rotor 5 and cylinder body 1
It is formed between inner wall on three side walls of inlet plenum 6,7 three-apexed rotor 5 of discharge chambe 8 and exhaust chamber and opens up combuster 12,
Each combustion chamber 12 is tongued structures, and one of combustion chamber 12 is communicated with discharge chambe 8, and discharge chambe 8 is communicated with precombustion chamber 4；
It can be diffused in precombustion chamber 4 and combustion chamber 12 by the oil liquid that atomizer 2 sprays, it can after the burning of 4 inner fluid of precombustion chamber
Light the oil liquid in combustion chamber 12.
Three-apexed rotor 5 can rotate in cylinder body 1, and discharge chambe 8 is successively passed through in three on three-apexed rotor 5 combustion chamber 12,
Very big crossflow can be generated in compression stage combustion chamber 12, when atomizer 2 is to when spraying oil liquid, oil liquid is able to enter to pre-
It fires in room 4 and discharge chambe 8, in discharge chambe 8, oil liquid and air are mixed by compression, when being rotated due to three-apexed rotor 5, burning
Huge crossflow can be generated in room 12, crossflow is able to drive mixed oil gas Dispersed precipitate in 5 tongue of three-apexed rotor
In the combustion chamber 12 of shape, so that the fuel concentration in combustion chamber 12 is high, the surrounding volume position fuel concentration far from combustion chamber 12
Low, in entire combustion chamber 12, gradient distribution is presented in the fuel concentration in gaseous mixture, is distributed for fuel layering, along three-apexed rotor 5
Direction of rotation, atomizer 2 and igniting glow plug 3 are respectively fixedly disposed at 12 two sides of precombustion chamber, and sub-fraction fuel oil is in pre-burning
It is ignited glow plug 3 in burning room 12 to light in advance, most of fuel oil is sprayed from precombustion chamber 12, a small portion in precombustion chamber 12
The fuel oil divided is ignited glow plug 3 in precombustion chamber 12 and lights, and igniting glow plug 3 is continued for hot igniting, ignition
Stablize, realize and light a fire for the first time, the hard flame diffusion combustion that igniting is formed for the first time further lights main Dispersed precipitate and exists
Fuel mixture in combustion chamber 12 forms second and lights a fire, and the flame lighted for the second time is further spread in combustion chamber 12
Burning, thoroughly forms the big flame of violent burning, big flame is centered on combustion chamber 12, around in entire combustion chamber 12
Stratified combustion phenomenon is presented in the low regional diffusion of fuel concentration.
Offer diversion trench 9 on three side walls of three-apexed rotor 5, each diversion trench 9 with corresponding combustion chamber 12
It communicates.
One end that atomizer 2 is located in precombustion chamber 4 is provided with striker 10.
Fuel oil sprays atomization under oil pump mechanical pressure from single hole fuel injector, is primary atomization, broken fuel-oil atmozation
Beam strikes on the striker 10 of front end, and fuel oil is broken up by needle point as secondary-atomizing, and the fuel droplet after secondary-atomizing is from precombustion
Combustion chamber 12 is ejected into room 12, high speed crossflow dispels, scatter to be formed is atomized three times in burned room 12, after being atomized three times
Fuel droplet can be improved the uniformity of fuel distribution in this way with air-flow flowing, diffusion, and then improve fuel burning and stablize
Property.
Eccentric shaft 11 is inserted on three-apexed rotor 5.
Cylinder body 1 offers air inlet 13 close to 6 side of inlet plenum, and cylinder body 1 offers gas vent close to 7 side of exhaust chamber
14。
In above-described embodiment, the working principle of 5 engine of three-apexed rotor are as follows: three-apexed rotor 5 rotates counterclockwise, fresh
Air is inhaled into inlet plenum 6 from the air inlet 13 of cylinder body 1, and with the compression of air, atomizer 2 ejects the combustion of atomization
Oil, by secondary-atomizing on fuel impingement to striker 10, the fuel oil of most of secondary-atomizing is sprayed to from precombustion chamber 12 to compression
Room 8 is dispelled to be formed and be atomized three times by strong crossflow, and fuel oil largely passes through 9 Dispersed precipitate of diversion trench near burning groove
Region, other region fuel distributions are few, and the fuel oil of sub-fraction secondary-atomizing connects with red-hot glow plug 3 in precombustion chamber 12
Touching is ignited, and the fiery core lighted is stablized, and then the fuel oil after being atomized three times of burning groove near zone, scene are lighted in fiery nuclear proliferation
Violent big flame, flame after the lighting few region of fuel distribution gradually stratified combustion around, flameholding is reliable, simultaneously
Also combustion path is shortened, the exhaust gas after final combustion is discharged from the exhaust outlet of cylinder body 1.By stratified combustion, three times atomization, two
The methods of secondary igniting and measure, improve the burning reliability of 5 engine of three-apexed rotor.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
Generation, defined range that however, it does not deviate from the spirit of the invention.
Claims (5)
1. a kind of spark ignition type rotary polygonal piston engine of stratified combustion characterized by comprising
Cylinder body, side are inserted with atomizer and glow plug, and the glow plug is located above the atomizer, in the cylinder body
Side wall offers precombustion chamber, and the atomizer end and the glow plug end are respectively positioned in the precombustion chamber；
Three-apexed rotor is movably set in the cylinder body, between the three-apexed rotor and the inboard wall of cylinder block formed inlet plenum,
Combuster is opened up on three side walls of three-apexed rotor described in discharge chambe and exhaust chamber, each combustion chamber is ligulate
Structure, one of them described combustion chamber are communicated with the discharge chambe, and the discharge chambe is communicated with the precombustion chamber；
It can be diffused in the precombustion chamber and the combustion chamber by the oil liquid that the atomizer sprays, precombustion chamber inner fluid
The indoor oil liquid gaseous mixture of burning can be lighted after burning.
2. a kind of spark ignition type rotary polygonal piston engine of stratified combustion according to claim 1, which is characterized in that described three
Diversion trench is offered on three side walls of angle rotor, each diversion trench is communicated with the corresponding combustion chamber.
3. a kind of spark ignition type rotary polygonal piston engine of stratified combustion according to claim 2, which is characterized in that the spray
Oil nozzle is located at the indoor one end of pre-burning and is provided with striker.
4. a kind of spark ignition type rotary polygonal piston engine of stratified combustion according to claim 1, which is characterized in that described three
Eccentric shaft is inserted on the rotor of angle.
5. a kind of spark ignition type rotary polygonal piston engine of stratified combustion according to claim 1, which is characterized in that the cylinder
Body offers air inlet close to inlet plenum side, and cylinder body offers gas vent close to exhaust chamber side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362895.6A CN109944688A (en) | 2019-04-30 | 2019-04-30 | A kind of spark ignition type rotary polygonal piston engine of stratified combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910362895.6A CN109944688A (en) | 2019-04-30 | 2019-04-30 | A kind of spark ignition type rotary polygonal piston engine of stratified combustion |
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| CN109944688A true CN109944688A (en) | 2019-06-28 |
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| CN201910362895.6A Pending CN109944688A (en) | 2019-04-30 | 2019-04-30 | A kind of spark ignition type rotary polygonal piston engine of stratified combustion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796875A (en) * | 2020-12-30 | 2021-05-14 | 北京工业大学 | Hydrogen-gasoline dual-fuel layered combustion rotor machine and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508530A (en) * | 1968-05-23 | 1970-04-28 | Dynatech Corp | Internal combustion engine |
| JPS5512232A (en) * | 1978-07-11 | 1980-01-28 | Tadakatsu Ishimi | Method of feeding air to rotary engine combustion chamber |
| JPS6483822A (en) * | 1987-09-25 | 1989-03-29 | Mazda Motor | Control device for engine |
| CN203355926U (en) * | 2013-06-08 | 2013-12-25 | 陕西金翼通风科技有限公司 | Target type impinging stream nozzle with circular truncated cone firing pin |
| CN104174517A (en) * | 2014-08-14 | 2014-12-03 | 陕西金翼通风科技有限公司 | Atomization no-blind zone target type impinging stream nozzle |
| US20180187641A1 (en) * | 2016-12-31 | 2018-07-05 | Donald John Jackson | Dripless Atomizing Impact Nozzle and Jet Assembly |
-
2019
- 2019-04-30 CN CN201910362895.6A patent/CN109944688A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3508530A (en) * | 1968-05-23 | 1970-04-28 | Dynatech Corp | Internal combustion engine |
| JPS5512232A (en) * | 1978-07-11 | 1980-01-28 | Tadakatsu Ishimi | Method of feeding air to rotary engine combustion chamber |
| JPS6483822A (en) * | 1987-09-25 | 1989-03-29 | Mazda Motor | Control device for engine |
| CN203355926U (en) * | 2013-06-08 | 2013-12-25 | 陕西金翼通风科技有限公司 | Target type impinging stream nozzle with circular truncated cone firing pin |
| CN104174517A (en) * | 2014-08-14 | 2014-12-03 | 陕西金翼通风科技有限公司 | Atomization no-blind zone target type impinging stream nozzle |
| US20180187641A1 (en) * | 2016-12-31 | 2018-07-05 | Donald John Jackson | Dripless Atomizing Impact Nozzle and Jet Assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796875A (en) * | 2020-12-30 | 2021-05-14 | 北京工业大学 | Hydrogen-gasoline dual-fuel layered combustion rotor machine and control method thereof |
| CN112796875B (en) * | 2020-12-30 | 2022-07-05 | 北京工业大学 | Hydrogen-gasoline dual-fuel layered combustion rotor machine and control method thereof |
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Application publication date: 20190628 |