CN103061864B - Multilayer scavenging engine - Google Patents
Multilayer scavenging engine Download PDFInfo
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- CN103061864B CN103061864B CN201110318868.2A CN201110318868A CN103061864B CN 103061864 B CN103061864 B CN 103061864B CN 201110318868 A CN201110318868 A CN 201110318868A CN 103061864 B CN103061864 B CN 103061864B
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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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Abstract
The invention discloses a kind of Multilayer scavenging engine, comprise cylinder, crankcase, suction port, relief opening, relief opening, scavenge trunk, exhaust passage; Suction port comprises the mixed oil and gas suction port and air inlet that are opened in cylinder inner wall, and mixed oil and gas suction port is communicated in crankcase inside, and air inlet is communicated in the top of scavenge trunk; Air inlet is provided with the one-way leaf valve to the conducting of side, scavenge trunk; Scavenging port communicates with the top of scavenge trunk; The inwall of cylinder offers exhaust gas recirculation passage, one end of exhaust gas recirculation passage communicates with exhaust passage, and the other end communicates with the top of scavenge trunk, is provided with the one-way valve to the conducting of side, scavenge trunk in exhaust gas recirculation passage.The present invention can reduce the loss ratio of fuel oil, reduces the discharge of its exhaust pollutant.
Description
Technical field
The present invention relates to field of power machinery technology, particularly a kind of Multilayer scavenging engine.
Background technique
Motor, is also called engine, be a kind of can other form can be converted into another kind of can machine, be normally mechanical energy, such as petrol engine chemical energy.
The piston of motor is called a stroke from a limit position to the distance of another limit position.
Stroke have two-stroke and four-stroke point.Two-stroke refers to that bent axle turns around can complete a work cycle, namely completes air-breathing (two-stroke is called scavenging), and--compression--acting--exhaust, this is the feature of two stroke engine.
Two stroke motor needs fresh incendivity mixed oil and gas " to be squeezed " and go out outside cylinder by the waste gas after burning, and this process is called scavenging.
Two-stroke gasoline engine cylinder block has three mouths, i.e. suction port, relief opening and scavenging port, these three mouths are closed by piston in certain moment respectively.Suction port communicates with Carburetor, and incendivity mixed oil and gas flows into crankcase through suction port, then enters cylinder from scavenging port; Waste gas is then discharged from relief opening.Its work cycle comprises two strokes:
First stroke piston moves up from lower dead center, and after three gas ports are closed, above piston, the mixed gas having entered cylinder is compressed; And the crankcase internal cause volume below piston increases, form certain degree of vacuum, when suction port exposes, incendivity mixed oil and gas flows in crankcase through suction port from Carburetor.
When second stroke piston is compressed near top dead center, spark plug sparking lights incendivity mixed oil and gas, and the combustion gas of High Temperature High Pressure is expanded, and promotes piston and moves down acting.Inlet close when piston moves down acting, the incendivity mixed oil and gas be enclosed in crankcase is compressed; When piston is close to exhaust open during lower dead center, waste gas is gone out; Scavenging port is opened subsequently, and the incendivity mixed oil and gas by descending piston precompressed pours cylinder by scavenging air belt, drives away waste gas, carries out gas exchange process.This process is performed until on next stroke piston and moves, till three gas ports are closed completely.
In the process of second stroke exhaust, gas of combustion can not be removed completely, then participates in recirculation and affects catching fire and affecting power performance of mixed oil and gas; The waste gas of firing chamber and High Temperature High Pressure that cool air is directly introduced high temperature by traditional batch scavenging engine collides, and generates CH and CO, adds burning pollutant bad in toxic emission; On the other hand, enter cylinder wait the mixed oil and gas fired and discharge with the waste gas after burning, and then have impact on exhaust emissions, also have lost fuel oil.
Therefore, how to improve the structure of two-stroke gasoline engine, reduce the loss ratio of fuel oil, reduce the discharge of its exhaust pollutant, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of Multilayer scavenging engine, to reduce the loss ratio of fuel oil, reduce the discharge of its exhaust pollutant.
For achieving the above object, the invention provides following technological scheme:
A kind of Multilayer scavenging engine, comprising:
Cylinder;
Be arranged at the crankcase of described cylinder foot;
Be opened in the suction port of described casing outer wall;
Be opened in the relief opening of described cylinder inner wall, the position of described relief opening is higher than described suction port;
Be opened in the scavenging port of described cylinder inner wall, the position of described scavenging port lower than described relief opening, and higher than described suction port;
Inside be located at described cylinder, and one end is communicated with described scavenging port, the other end is communicated with the scavenge trunk of described crankcase inside;
Be opened in described casing outer wall, and one end is communicated with described relief opening, the other end is communicated with the exhaust passage of the outside baffler of described cylinder;
It is characterized in that, described suction port comprises the mixed oil and gas suction port and air inlet that are opened in described cylinder inner wall, and it is inner that described mixed oil and gas suction port is communicated in described crankcase, and described air inlet is communicated in the top of described scavenge trunk; Described air inlet is provided with the one-way leaf valve to the side conducting of described scavenge trunk; Described scavenging port communicates with the top of described scavenge trunk; The inwall of described cylinder offers exhaust gas recirculation passage, one end of described exhaust gas recirculation passage communicates with described exhaust passage, the other end communicates with the top of described scavenge trunk, is provided with the one-way valve to the side conducting of described scavenge trunk in described exhaust gas recirculation passage.
Preferably, the fresh air making-up air device being external in described air inlet is also comprised.
Preferably, described fresh air making-up air device comprises the air filter being connected to described one-way leaf valve.
Preferably, described fresh air making-up air device also comprises:
Connect the valve body of described air filter and described cylinder;
Be arranged at the sealing gasket between described valve body and described cylinder;
Be coated at the housing of described air filter, described housing has reticular structure.
Preferably, the concrete quantity of described air inlet is two, and symmetry is opened in the both sides of described cylinder, is respectively the first air inlet and the second air inlet; Corresponding, the concrete quantity of described one-way leaf valve is two, is separately positioned on described first air inlet and described second air inlet; The concrete quantity of described fresh air making-up air device is two, is external in described first air inlet and described second air inlet respectively.
Preferably, the concrete quantity in described scavenge trunk is two, is respectively the first scavenge trunk and the second scavenge trunk, wherein, one end of described first scavenge trunk is communicated with described first air inlet, and one end of described second scavenge trunk is communicated with described second air inlet.
Preferably, the concrete quantity of described scavenging port is two, be respectively the first scavenging port and the second scavenging port, wherein, the inwall of described cylinder is offered what communicate with the top of described first scavenge trunk is the first scavenging port, the inwall of described cylinder is offered what communicate with the top of described second scavenge trunk is the second scavenging port.
Preferably, the concrete quantity of described exhaust gas recirculation passage is two, be respectively the first exhaust gas recirculation passage and the second exhaust gas recirculation passage, wherein, one end of described first exhaust gas recirculation passage is communicated with the top of described first scavenge trunk, and one end of described second exhaust gas recirculation passage is communicated with the top of described second scavenge trunk.
Preferably, the concrete quantity of described one-way valve is two, be respectively the first one-way valve and the second one-way valve, wherein, inside being located at described first exhaust gas recirculation passage is the first one-way valve to described first side, scavenge trunk conducting, and being inside located at described second exhaust gas recirculation passage is the second one-way valve to described second side, scavenge trunk conducting.
As can be seen from above-mentioned technological scheme, Multilayer scavenging engine provided by the invention, in the first stroke, utilizes the negative pressure in crankcase to open the one-way leaf valve of air inlet, for adding one deck fresh air above mixed oil and gas in scavenge trunk; At the second stroke initial stage, pressure is utilized to close the one-way leaf valve of air inlet, waste gas after part burning enters top, scavenge trunk by self the pressure one-way valve opened in exhaust gas recirculation passage, is divided into by scavenging gas on two-layer (upper strata be waste gas after burning, lower floor be fresh air); Scavenging port is opened afterwards, the waste gas at top, scavenge trunk is subject to crankcase pressure as scavenging medium, first cylinder is entered, acceleration is forced to scan out relief opening residual gas original in cylinder, the fresh air of scavenge trunk mesonexine enters cylinder and sweeps to relief opening by the scavenging waste gas on upper strata subsequently, and form one deck separation layer entering thereafter between the mixed oil and gas to be combusted in cylinder, the unburned mixed oil and gas of effective prevention is discharged with waste gas, thus reduce the loss ratio of fuel oil, decrease the discharge of its exhaust pollutant.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The front cross-sectional structural representation of the Multilayer scavenging engine that Fig. 1 provides for the embodiment of the present invention;
The part section enlarged diagram of the Multilayer scavenging engine that Fig. 2 provides for the embodiment of the present invention;
The side profile structural representation of the Multilayer scavenging engine that Fig. 3 provides for the embodiment of the present invention.
Embodiment
The invention discloses a kind of Multilayer scavenging engine, to reduce the loss ratio of fuel oil, reduce the discharge of its exhaust pollutant.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to the front cross-sectional structural representation of the Multilayer scavenging engine that Fig. 1 and Fig. 2 and Fig. 3, Fig. 1 provide for the embodiment of the present invention; The part section enlarged diagram of the Multilayer scavenging engine that Fig. 2 provides for the embodiment of the present invention; The side profile structural representation of the Multilayer scavenging engine that Fig. 3 provides for the embodiment of the present invention.
The Multilayer scavenging engine that the embodiment of the present invention provides, comprising:
Cylinder 1, it is in-engine cylindrical shape room, for supporting its inner structure part, as piston 2, being also the place that mixed oil and gas burns, externally does work, being inside provided with firing chamber;
Be arranged at the crankcase 4 bottom cylinder 1, it is used for placing bent axle 3 and providing rotation space for it, and crankcase 4 internal capacity room treats combustion mixed oil and gas and mixed oil and gas precompressed for storing;
Be opened in the suction port of cylinder 1 outer wall, be used for allowing gas enter cylinder 1 inner;
Be opened in the relief opening 6 of cylinder 1 inwall, the discharge be used for for exhaust gases after combustion, the position of relief opening 6 is higher than described suction port, and the position of relief opening, higher than suction port, ensures its priority time sequencing opened and closed;
Be opened in the scavenging port 8 of cylinder 1 inwall, the position of scavenging port 8 lower than relief opening 6, and higher than suction port, ensures its priority time sequencing opened and closed;
Inside be located at cylinder 1, and one end is communicated with scavenging port 8, the other end is communicated with the scavenge trunk 7 of crankcase 4 inside, is used for supplied gas circulation and temporarily deposit gas;
Be opened in cylinder 1 outer wall, and one end is communicated with relief opening 6, the other end is communicated with the exhaust passage of the outside baffler of cylinder 1, and the waste gas after burning is discharged through exhaust passage;
Suction port comprises the mixed oil and gas suction port 11 and air inlet 5 that are opened in cylinder 1 inwall, one end of mixed oil and gas suction port 11 is communicated in crankcase 4 inside, the other end connects Carburetor, it is inner that mixed oil and gas enters crankcase 4 by oil gas suction port 11, air inlet 5 is communicated in the top of scavenge trunk 7, and air enters the top of scavenge trunk 7 by air inlet 5; Air inlet 5 is provided with the one-way leaf valve 10 to scavenge trunk 7 side conducting, ensure air can only enter in cylinder 1 by air inlet 5 from cylinder 1, prevention Air Reverse to flowing; Scavenging port 8 communicates with the top of scavenge trunk 7, and scavenging is carried out in the inside making the gas at top, scavenge trunk 7 can enter firing chamber; The inwall of cylinder 1 offers exhaust gas recirculation passage 13, one end of exhaust gas recirculation passage 13 communicates with exhaust passage, the other end communicates with the top of scavenge trunk 7, the one-way valve 12 to scavenge trunk 7 side conducting is provided with in exhaust gas recirculation passage 13, ensure that waste gas can only enter in scavenge trunk 7 by exhaust gas recirculation passage 13 from exhaust passage, stop the flowing that gas is reverse.
The Multilayer scavenging engine that the embodiment of the present invention provides, in first stroke, when piston 2 up in firing chamber mixed oil and gas compression time, crankcase 4 volume increases generation negative pressure, air inlet 5 opens one-way leaf valve 10 by the suction function in crankcase 4, fresh air enters scavenge trunk 7, and mixed oil and gas suction port 11 starts the to be combusted mixed oil and gas of suction through Carburetor process in crankcase 4 simultaneously; Constantly to increase due to internal pressure of combustion chamber and the scavenging port 8 of cylinder 1 inwall is closed in the skirt section of piston 2, the fresh air entering scavenge trunk 7 can not enter combustion chamber, the mixed oil and gas in scavenge trunk 7 can only be pressed to crankcase 4 and constantly fill scavenge trunk 7 with stored in more fresh airs.
In second stroke, when mixed oil and gas detonation in firing chamber promotes piston 2 from the process that top dead center runs downwards, crankcase 4 volume reduces gradually, internal pressure constantly increases, the mixed oil and gas to be combusted fresh air that promotion has been deposited in scavenge trunk 7 moves to top, scavenge trunk 7, because the pressure in now scavenge trunk 7 is greater than external air pressure, one-way leaf valve 10 is closed automatically; Piston 2 continues to come downwards to relief opening 6 when opening, high temperature after burning, the high pressure exhaust gas overwhelming majority is discharged from relief opening 6, the one-way valve 12 of the exhaust gas recirculation passage 13 that the waste gas after part burning leans on the pressure of self to open in cylinder 1 inwall exhaust passage enters top, scavenge trunk 7, because exhaust pressure is now greater than the internal pressure of crankcase 4, the fresh air on upper strata in scavenge trunk 7 and lower floor treated that combustion mixed oil and gas presses to crankcase 4 again, prevents mixed oil and gas to be combusted to enter firing chamber and discharge with the waste gas after burning and affect exhaust emissions.Along with relief opening 6 is all opened, the reduction of exhaust pressure, the one-way valve 12 of the exhaust gas recirculation passage 13 in exhaust passage starts to close, now piston 2 approaches bottom dead centre, and the pressure in crankcase 4 increases gradually, and the gas in scavenge trunk 7 starts reverse movement; When the scavenging port 8 of cylinder 1 inwall is opened, in scavenge trunk 7, first upper strata waste gas enter firing chamber and original for firing chamber residual gas scanned out relief opening 6, subsequently scavenge trunk 7 mesonexine fresh air by the effect of crankcase 4 pressure enter firing chamber by the scavenging waste gas on upper strata continue sweep to relief opening 6 fast, and one deck separation layer is formed between residual gas and the mixed oil and gas to be combusted entering in firing chamber subsequently, effectively stop unburned mixed oil and gas to be discharged with waste gas; This Multilayer scavenging engine can realize waiting that firing mixed oil and gas 100% can not escape with waste gas and can realize the thorough removing of gas of combustion.
Enter scavenge trunk at high pressure exhaust gas to fill up the spatial channel that negative pressure causes and realize waste gas scavenging, scavenging gas is divided into two-layer (one deck be burning after recirculating exhaust gas, one deck is fresh air, and the tendency of mixing is had in two-layer gas critical part), because under crankcase 4 negative pressure, fresh air is first advanced into scavenge trunk 7, negative pressure in crankcase 4 is caused to reduce, so only have a small amount of recirculating exhaust gas to enter in scavenge trunk 7, therefore, catching fire and affecting power performance of mixed oil and gas can not be affected because too much waste gas participates in recirculation in the process of carrying out multilayer scavenging, on the other hand because temperature and pressure when exhaust gases after combustion enters scavenge trunk 7 via the exhaust gas recirculation passage 13 of cylinder 1 inwall reduces, when contacting with fresh air in scavenge trunk 7, the waste gas of the firing chamber and High Temperature High Pressure that as traditional batch scavenging engine, cool air can not directly be introduced high temperature collides and generates CH and CO, thus the generation of CH and CO will be suppressed, reduce burning pollutant bad in toxic emission.
Conveniently supplement air, the Multilayer scavenging engine that the embodiment of the present invention provides also comprises the fresh air making-up air device 9 being external in air inlet 5.
Further, fresh air making-up air device 9 comprises the air filter 92 being connected to one-way leaf valve 10, is used for filtering the air that will enter scavenge trunk 7, eliminates impurity wherein, keeps the pure of the air supplemented, avoids bringing extra pollution.
In addition, fresh air making-up air device 9 also comprises:
Connect the valve body 91 of air filter 92 and cylinder 1, be arranged between air filter 92 and cylinder 1, it also can be used to air filter 92 to be fixedly connected on cylinder 1;
Be arranged on the sealing gasket 90 between connection set 91 and cylinder 1, seal, avoid intracavity gas to reveal, prevent the air be not filtered from entering scavenge trunk 7 simultaneously;
Be coated at the housing 93 of air filter 92, be used for protecting air filter 92, housing has reticular structure, facilitates air to pass housing 93 and enters air filter 92.
In order to increase air inflow, improving scavenging efficiency, improving scavenge effect, the concrete quantity of air inlet 5 is two, and symmetry is opened in the both sides of cylinder 1, is respectively the first air inlet and the second air inlet; Corresponding, the concrete quantity of one-way leaf valve 10 is two, is separately positioned on the first air inlet and the second air inlet; The concrete quantity of fresh air making-up air device 9 is two, is external in the first air inlet and the second air inlet respectively.
Accordingly, the concrete quantity in scavenge trunk 7 is two, and be respectively the first scavenge trunk and the second scavenge trunk, wherein, one end of the first scavenge trunk is communicated with the first air inlet, and one end of the second scavenge trunk is communicated with the second air inlet.
The concrete quantity of scavenging port 8 is two, be respectively the first scavenging port and the second scavenging port, wherein, the inwall of cylinder 1 is offered what communicate with the top of the first scavenge trunk is the first scavenging port, the inwall of cylinder 1 is offered what communicate with the top of the second scavenge trunk is the second scavenging port.
In addition, the concrete quantity of exhaust gas recirculation passage 13 is two, is respectively the first exhaust gas recirculation passage and the second exhaust gas recirculation passage, wherein, one end of first exhaust gas recirculation passage is communicated with the top of the first scavenge trunk, and one end of the second exhaust gas recirculation passage is communicated with the top of the second scavenge trunk.
The concrete quantity of one-way valve 12 is two, be respectively the first one-way valve and the second one-way valve, wherein, being inside located at the first exhaust gas recirculation passage is the first one-way valve to the first side, scavenge trunk conducting, and being inside located at the second exhaust gas recirculation passage is the second one-way valve to the second side, scavenge trunk conducting.
So, the air inflow of pure air can be increased by two air inlets, bring the efficiency that more scavenging gas also improves ventilation, make scavenging more abundant by arranging two scavenging ports, more exhaust gases after combustion is discharged cylinder, improves the effect of scavenging, further increase the efficiency of motor, reduce the loss ratio of fuel oil, decrease the discharge of exhaust pollutant.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a Multilayer scavenging engine, comprising:
Cylinder (1);
Be arranged at the crankcase (4) of described cylinder (1) bottom;
Be opened in the suction port of described cylinder (1) outer wall;
Be opened in the relief opening (6) of described cylinder (1) inwall, the position of described relief opening (6) is higher than described suction port;
Be opened in the scavenging port (8) of described cylinder (1) inwall, the position of described scavenging port (8) lower than described relief opening (6), and higher than described suction port;
Inside be located at described cylinder (1), and one end is communicated with described scavenging port (8), the other end is communicated with the inner scavenge trunk (7) of described crankcase (4);
Be opened in described cylinder (1) outer wall, and one end is communicated with described relief opening (6), the other end is communicated with the exhaust passage of described cylinder (1) outside baffler;
It is characterized in that, described suction port comprises the mixed oil and gas suction port (11) and air inlet (5) that are opened in described cylinder (1) inwall, it is inner that described mixed oil and gas suction port (11) is communicated in described crankcase (4), and described air inlet (5) is communicated in the top of described scavenge trunk (7); Described air inlet (5) is provided with the one-way leaf valve (10) to described scavenge trunk (7) side conducting; Described scavenging port (8) communicates with the top of described scavenge trunk (7); The inwall of described cylinder (1) offers exhaust gas recirculation passage (13), one end of described exhaust gas recirculation passage (13) communicates with described exhaust passage, the other end communicates with the top of described scavenge trunk (7), is provided with the one-way valve (12) to described scavenge trunk (7) side conducting in described exhaust gas recirculation passage (13);
Also comprise the fresh air making-up air device (9) being external in described air inlet (5); Described fresh air making-up air device (9) comprises the air filter (92) being connected to described one-way leaf valve (10).
2. Multilayer scavenging engine according to claim 1, is characterized in that, described fresh air making-up air device (9) also comprises:
Connect the valve body (91) of described air filter (92) and described cylinder (1);
Be arranged at the sealing gasket (90) between described valve body (91) and described cylinder (1);
Be coated at the housing (93) of described air filter (92), described housing (93) has reticular structure.
3. the Multilayer scavenging engine according to claim 1-2 any one, it is characterized in that, the concrete quantity of described air inlet (5) is two, and symmetry is opened in the both sides of described cylinder (1), is respectively the first air inlet and the second air inlet; Corresponding, the concrete quantity of described one-way leaf valve (10) is two, is separately positioned on described first air inlet and described second air inlet; The concrete quantity of described fresh air making-up air device (9) is two, is external in described first air inlet and described second air inlet respectively.
4. Multilayer scavenging engine according to claim 3, it is characterized in that, the concrete quantity in described scavenge trunk (7) is two, be respectively the first scavenge trunk and the second scavenge trunk, wherein, one end of described first scavenge trunk is communicated with described first air inlet, and one end of described second scavenge trunk is communicated with described second air inlet.
5. Multilayer scavenging engine according to claim 4, it is characterized in that, the concrete quantity of described scavenging port (8) is two, be respectively the first scavenging port and the second scavenging port, wherein, the inwall of described cylinder (1) is offered what communicate with the top of described first scavenge trunk is the first scavenging port, the inwall of described cylinder (1) is offered what communicate with the top of described second scavenge trunk is the second scavenging port.
6. Multilayer scavenging engine according to claim 5, it is characterized in that, the concrete quantity of described exhaust gas recirculation passage (13) is two, be respectively the first exhaust gas recirculation passage and the second exhaust gas recirculation passage, wherein, one end of described first exhaust gas recirculation passage is communicated with the top of described first scavenge trunk, and one end of described second exhaust gas recirculation passage is communicated with the top of described second scavenge trunk.
7. Multilayer scavenging engine according to claim 6, it is characterized in that, the concrete quantity of described one-way valve (12) is two, be respectively the first one-way valve and the second one-way valve, wherein, inside being located at described first exhaust gas recirculation passage is the first one-way valve to described first side, scavenge trunk conducting, and being inside located at described second exhaust gas recirculation passage is the second one-way valve to described second side, scavenge trunk conducting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318868.2A CN103061864B (en) | 2011-10-19 | 2011-10-19 | Multilayer scavenging engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318868.2A CN103061864B (en) | 2011-10-19 | 2011-10-19 | Multilayer scavenging engine |
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| CN103061864A CN103061864A (en) | 2013-04-24 |
| CN103061864B true CN103061864B (en) | 2015-11-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929797A (en) * | 2015-07-02 | 2015-09-23 | 浙江天泰机械有限公司 | Two-stroke engine cylinder and two-stroke engine |
| CN106988861A (en) * | 2016-01-21 | 2017-07-28 | 浙江派尼尔科技股份有限公司 | A kind of multilayer layered-scavenging engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091955U (en) * | 1991-04-03 | 1992-01-01 | 周元祥 | Improved two-stroke cylinder |
| CN1115997A (en) * | 1993-01-04 | 1996-01-31 | 轨道工程有限公司 | Exhaust gas recirculation in a two stroke engine |
| CN202300630U (en) * | 2011-10-19 | 2012-07-04 | 浙江派尼尔机电有限公司 | Multilayer scavenging engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57183520A (en) * | 1981-05-06 | 1982-11-11 | Isao Oda | Device for preventing mixture from blowing through two-cycle engine |
| JPH07139358A (en) * | 1993-11-19 | 1995-05-30 | Komatsu Zenoah Co | Two cycle engine |
| JP3974957B2 (en) * | 1996-04-07 | 2007-09-12 | 日本ウォルブロー株式会社 | Two-stroke engine carburetor |
-
2011
- 2011-10-19 CN CN201110318868.2A patent/CN103061864B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091955U (en) * | 1991-04-03 | 1992-01-01 | 周元祥 | Improved two-stroke cylinder |
| CN1115997A (en) * | 1993-01-04 | 1996-01-31 | 轨道工程有限公司 | Exhaust gas recirculation in a two stroke engine |
| CN202300630U (en) * | 2011-10-19 | 2012-07-04 | 浙江派尼尔机电有限公司 | Multilayer scavenging engine |
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