CN101684744B - Four-stroke internal combustion engine bidirectional air inlet method and device thereof - Google Patents
Four-stroke internal combustion engine bidirectional air inlet method and device thereof Download PDFInfo
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- CN101684744B CN101684744B CN2008101698250A CN200810169825A CN101684744B CN 101684744 B CN101684744 B CN 101684744B CN 2008101698250 A CN2008101698250 A CN 2008101698250A CN 200810169825 A CN200810169825 A CN 200810169825A CN 101684744 B CN101684744 B CN 101684744B
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Abstract
The invention discloses a four-stroke internal combustion engine bidirectional air inlet method and a device. The device comprises a cylinder provided with a cylinder chamber which leads gas in to carry out combustion and explosion; the cylinder is provided with an air inlet valve and an exhaust valve which are respectively connected with the cylinder chamber; a crank shaft chamber is communicated with the cylinder chamber and is provided with a crank shaft and a connecting rod which are connected with each other; the connecting rod is connected with a piston which moves in the cylinder chamber; the crank shaft chamber is provided with an air inlet port of the cylinder adjacent to the cylinder chamber; a first air inlet manifold is communicated with the air inlet valve; an exhaust manifold is communicated with the exhaust valve; a second air inlet manifold is connected with the crank shaft chamber; so that the four-stroke internal combustion engine can implement air inlet stroke, secondary air inlet, compression stroke, power stroke, exhaustion and blow down and exhaustion stroke in a circulating manner so as to overcome the defects that waste gas exists in the exhaustion stroke of the traditional four-stroke internal combustion engine and the air inlet stroke can not reach 100% of volume efficiency, thereby efficiently improving power and performance of the four-stroke internal combustion engine, reducing pollution emission, and achieving desired operation effect.
Description
Technical field
The present invention is relating to a kind of structure of quartastroke engine, relate in particular to a kind of aspirating stroke and exhaust stroke by brand-new design, effectively improve the power and the performance of quartastroke engine, make quartastroke engine behind power stroke, can quicken the method and the device thereof of discharging cylinder chamber internal waste gas.
Background technique
Because the preciousness and the shortage phenomenon of the energy are existing in the world to the high efficiency utilization of the energy and the research that how to produce more high-power internal-combustion engine (engine) performance, are the important topics that constant all the time research and development break through.The basic structure of existing quartastroke engine (engine) as shown in figure 12, it comprises a cylinder 80, this cylinder 80 has a cylinder chamber 81 and links a crankshaft room 82, is provided with a piston 84 in this cylinder chamber 81, and this piston 84 is by 83 interlocks of connecting rod that are located in the crankshaft room 82.This cylinder 80 also is provided with a spark plug 85 and intake valve 86, exhaust valve 87, this intake valve 86 is communicated with an inlet manifold 88, this exhaust valve 87 is communicated with a discharge manifold 89, and this inlet manifold 88 is provided with a Carburetor 90, makes the air that is entered by inlet manifold 88 attract to sneak into fuel oil and forms mixed gas.The operation of quartastroke engine (engine) promptly from sucking fuel and Air mixing gas, is compressed this mixed gas, produces gas to burning and expands to promote piston motion, discharges the waste gas that burnt at last, and this process is divided into four steps:
(1) aspirating stroke: piston down and intake valve open, the mixed gas of air and fuel (gasoline etc.) is sucked in the cylinder.
(2) compression stroke: IC Intake Valve Closes and piston up compress this mixed gas and make its smaller volume.
(3) explosion stroke: in the mixed gas of compression, light a fire, the gaseous combustion outburst is expanded, promote piston down (work done of exerting oneself).
(4) exhaust stroke: this moment exhaust valve open and piston once again up, waste gas after burning is discharged cylinder.
Conventional, four-stroke internal-combustion engine (engine) does not have much changes so far, though engine performance makes progress and improves raising for many years, can't thoroughly improve or eliminate all the time in inborn two the action stroke defectives of quartastroke engine (engine), that is:
(1) quartastroke engine (engine) is at explosion stroke and after carrying out exhaust stroke, and effectively evacuating exhaust gas is residual, disturbs next circulating combustion, thereby reduces due admission space efficient, reduces the thermal efficiency.
(2) combustion gas of aspirating stroke can't reach the volumetric efficiency 100% of air inlet.
Therefore, how in response to the arriving in high price crude oil epoch and seek to use the quartastroke engine that has more efficient, be the important directions that industry or knowledgeable people should actively be improved, break through really.
Therefore, the inventor goes up the not high enough defect problem of efficient because the aforementioned conventional quartastroke engine uses, and do not attain the desirable fact on the architecture design, this case inventor promptly sets about its solution of research and development design, hope can be developed a kind of bidirectional air inlet method and device thereof that has more the quartastroke engine of efficient activity, performanceization, popular and the promotion industry development with service society is so produced technological scheme of the present invention through long design.
Summary of the invention
Technical problem to be solved by this invention is: existing quartastroke engine is at explosion stroke and after carrying out exhaust stroke, and effectively evacuating exhaust gas is residual, disturbs next circulating combustion, thereby reduces due admission space efficient, reduces the thermal efficiency; The combustion gas of aspirating stroke can't reach the volumetric efficiency 100% of air inlet.
Purpose of the present invention is providing a kind of four-stroke internal combustion engine bidirectional air inlet method and device thereof, it is by good, brand-new aspirating stroke and exhaust stroke design, to eliminate the defective that quartastroke engine is theoretical and in fact caused, effectively improve the power and the performance of quartastroke engine, and can lower disposal of pollutants, and then reach desirable four-stroke engine running state.
The present invention reaches effect in order to achieve the above object, a kind of four-stroke internal combustion engine bidirectional air inlet device is provided, include: a cylinder, have one and import the cylinder chamber that gas burns and breaks out, this cylinder is provided with an intake valve and an exhaust valve that is connected to cylinder chamber; One crankshaft room is communicated with this cylinder chamber, and this crankshaft room is provided with bent axle and the connecting rod that is connected, and this connecting rod links a piston, and this piston motion and is provided with the cylinder suction port at contiguous this cylinder chamber place in this crankshaft room in this cylinder chamber; One first inlet manifold is communicated with this intake valve; One discharge manifold is communicated with this exhaust valve; One second inlet manifold is linked to this crankshaft room.
The present invention reaches effect in order to achieve the above object, and a kind of four-stroke internal combustion engine bidirectional air inlet method also is provided, and it comprises: (1) aspirating stroke: gas is entered in the cylinder chamber by first inlet manifold and intake valve; (2) secondary air inlet: air is entered in the cylinder chamber through crankshaft room and cylinder suction port; (3) compression stroke: compress the gas in this cylinder chamber, and air is entered in the crankshaft room by second inlet manifold; (4) power stroke: the gaseous combustion outburst of ordering about in the cylinder chamber produces power; (5) exhaust is dashed and put: cylinder chamber is via exhaust valve exclusive segment waste gas, and continuing makes the air in the crankshaft room enter in the cylinder chamber again; (6) exhaust stroke: the waste gas of remainder is got rid of by cylinder chamber, and keeps the air that is entered by this crankshaft room, and air is entered in the crankshaft room by second inlet manifold again.
By said structure and method, the present invention can be achieved as follows beneficial technical effects: overcome conventional, four-stroke internal combustion engine theory and the defective that is in fact caused, effectively improve the power and the performance of quartastroke engine, and can lower disposal of pollutants, and then reach desirable four-stroke engine running state.
Description of drawings
Fig. 1 is the first embodiment of the invention structural representation;
Fig. 2 is the aspirating stroke schematic representation of the inventive method;
Fig. 3 is the secondary air inlet schematic representation of the inventive method;
Fig. 4 is the compression stroke schematic representation of the inventive method;
Fig. 5 is the power stroke schematic representation of the inventive method;
Fig. 6 dashes for the exhaust of the inventive method puts stroke (I) schematic representation;
Fig. 7 dashes for the exhaust of the inventive method puts stroke (II) schematic representation;
Fig. 8 is the exhaust stroke schematic representation of the inventive method;
Fig. 9 is that the exhaust of the inventive method stops the stroke schematic representation;
Figure 10 is the second embodiment of the invention structural representation;
Figure 11 is the third embodiment of the invention structural representation;
Figure 12 is existing engine structure schematic representation.
[primary component symbol description]
14 crankshaft room of 10 cylinders, 12 cylinder chamber
16 bent axles, 18 connecting rods
20 pistons, 22 cylinder suction ports, 24 spark plugs
26 intake valves, 28 exhaust valves
30 first inlet manifolds, 32 discharge manifolds, 34 Carburetors
35 chock plates 36,36A, 36B second inlet manifold
38 one-way cocks
40 air compressors, 42 driving components
Embodiment
Further understand and understanding for technology of the present invention, feature and the effect that reached are had, now be described in detail as follows in conjunction with preferred embodiment figure and cooperation:
See also Fig. 1, it is four-stroke internal combustion engine bidirectional air inlet device first embodiment of the present invention, it includes a cylinder 10, this cylinder 10 has a cylinder chamber 12 and links a crankshaft room 14, this crankshaft room 14 is provided with the connecting rod 18 that a bent axle 16 and is articulated in these bent axle 16 ends, the other end of this connecting rod 18 links a piston 20, and this piston 20 moves in this cylinder chamber 12, and is provided with a cylinder suction port 22 at contiguous these cylinder chamber 12 places in this crankshaft room 14; The other end of these cylinder 10 relative these crankshaft room 14 is provided with a spark plug 24 and intake valve 26, exhaust valve 28, this intake valve 26 is communicated with one first inlet manifold 30, this exhaust valve 28 is communicated with a discharge manifold 32, wherein, this first inlet manifold 30 in position is provided with a Carburetor 34 and a chock plate 35, attract to sneak into fuel oil (as gasoline) in order to the air that enters by first inlet manifold 30, and become combustion gas and gas (fuel mix gas).Moreover, one second inlet manifold 36 is attached at 14 of this first inlet manifold 30 and crankshaft room, promptly these second inlet manifold, 36 1 ends are communicated in this first inlet manifold 30, and end is communicated in this crankshaft room 14 in addition, these second inlet manifold, 36 contiguous these crankshaft room 14 places are provided with an one-way cock 38, certainly this one-way cock 38 is in order to control whether being communicated with of this second inlet manifold 36 and crankshaft room 14, promptly this one-way cock 38 is located on the path of second inlet manifold 36 and crankshaft room 14, so no matter this one-way cock 38 is located at this second inlet manifold 36 or the required suitable enforcement of carrying out all can be complied with by crankshaft room 14.
Four-stroke internal combustion engine bidirectional air inlet method of the present invention describes as follows based on said structure:
See also Fig. 2, (one) of the present invention in order to illustrate aspirating stroke:
At first, this intake valve 26 is opened; And piston 20 is when upper dead center moves downward, simultaneously from this first inlet manifold 30 and Carburetor 34 sucks combustion gas and gas (fuel mix gas) enters in the cylinder chamber 12; The one-way cock 38 of second inlet manifold 36 of continuing is closed automatically, and makes crankshaft room 14 produce pressure.
See also Fig. 3, (two) of the present invention in order to illustrate secondary air inlet:
When piston 20 moved downward to before about 30 degree of lower dead centre (as 25～35 degree), the cylinder suction port 22 of cylinder 10 exposed (opening), and the air that makes this crankshaft room 14 be under pressure is entered in the cylinder chamber 12 by this cylinder suction port 22.
See also Fig. 4, (three) of the present invention in order to illustrate compression stroke.
This piston 20 walks to when after bottom dead center revolution makes progress, and begin to compress combustion gas and gas in this cylinder chamber 12, and this intake valve 26 is closed; This moment, this one-way cock 38 was opened automatically, and air enters crankshaft room 14 by this second inlet manifold 36 by one-way cock 38.
See also Fig. 5, (four) of the present invention in order to illustrate power stroke:
When piston 20 walks near upper dead center, these spark plug 24 igniting, combustion gas and gaseous detonation, and promote this piston 20 generation power downwards; And piston 20 is when moving downward, and this one-way cock 38 is closed automatically.
See also Fig. 6, (five) of the present invention in order to illustrate exhaust is dashed and is put (I):
When piston 20 comes downwards to before the lower dead centre about 35～45 when spending, this exhaust valve 28 is opened, and part waste gas are discharged by this discharge manifold 32 through exhaust valve 28.
See also Fig. 7, (six) of the present invention in order to illustrate exhaust is dashed and is put (II):
Piston continues to advance downwards 20 this moments, when marching to before the lower dead centre about 25～35 when spending, pressure in this cylinder chamber 12 reduces, and cause pressure in this crankshaft room 14 greater than the pressure in this cylinder chamber 12, make air (as shown) through cylinder suction port 22 enters cylinder chamber 12 again in this crankshaft room 14, with the action that participates in scavenging.
See also Fig. 8, (seven) of the present invention in order to illustrate exhaust stroke:
When piston 20 makes progress the exhaust action through after bottom dead center preparing to turn round, the waste gas of these cylinder chamber's 12 first halves this moment for producing after burning, the unburned new air of Lower Half for entering through cylinder suction port 22 from this crankshaft room 14; This moment, this one-way cock 38 can be opened automatically, and promptly this crankshaft room 14 carries out air-breathing.
See also Fig. 9, (eight) of the present invention in order to illustrate exhaust stops:
When piston 20 when going upward to upper dead center, exhaust stroke finishes, what stayed in this cylinder chamber 12 this moment is unburned air, spent waste gas is then got rid of to cylinder 10 fully through this exhaust valve 28, unburned new air then participates in next circuit operation.
Aforementioned this Carburetor 34 is located at the appropriate location of first inlet manifold 30, be considered by second inlet manifold 36 enter crankshaft room 14 for combustion gas, air or its mixed proportion, if desire to make second inlet manifold 36 enter crankshaft room 14 for combustion gas the time, then these Carburetor 34 positions are located at before the jointing place of this second inlet manifold 36 and first inlet manifold 30.Certainly, during as shown in Figure 1 Carburetor 34 positions, then enter second inlet manifold 36 and be mainly air, this moment can be in the hope of whole preferable combustion gas ratios in the cylinder chamber 12 by the gasoline/air adjustment of this Carburetor 34.
The present invention is communicated with between this first inlet manifold 30 and crankshaft room 14 by this second inlet manifold 36 is set, and this one-way cock 38 further is set in order to the air inlet of control by these 36 pairs of crankshaft room 14 of second inlet manifold, and by the secondary air inlet mode, make have new combustion gas or new air in this crankshaft room 14 deposit function fully, so, new combustion gas in this crankshaft room 14 or new air are able to enter in the cylinder chamber 12 by this cylinder suction port 22 in good time, and the waste gas after cylinder chamber's 12 internal combustion squeezed outside the cylinder chamber 12, make and to scavenge effectively fully in each circular flow, and what stayed in this cylinder chamber 12 behind the exhaust termination stroke is new combustion gas or new air, and is participated in next circuit motion again.Therefore, the present invention can overcome traditional exhaust stroke has waste gas residual all the time, and then disturb the defective of next circulating combustion, and can solve the problem that aspirating stroke can't reach volumetric efficiency 100% again simultaneously, make the present invention effectively be improved the power and the performance of quartastroke engine (engine), and can lower disposal of pollutants, and then reach desirable quartastroke engine (engine) operational effect.
See also Figure 10, be four-stroke internal combustion engine bidirectional air inlet device second embodiment of the present invention, its difference with first embodiment is: this second inlet manifold 36A is not connected with this first inlet manifold 30, promptly the other end that is connected with this crankshaft room 14 of this second inlet manifold 36A is the open end, extraneous gas/air can enter in the crankshaft room 14 from this second inlet manifold 36A, the operation that makes countercylinder chamber 12 carry out replenishing of gas/air and participate in scavenging.And Figure 10 is at the diesel oil quartastroke engine, wherein first inlet manifold 30 and the second inlet manifold 36A all send into air, and needn't install spark plug shown in Figure 1 24, Carburetor 34 and chock plate 35 additional, by piston 20 air in the compression cylinder chamber 12 upwards, cooperate the mist of oil shape diesel oil of oil sprayer 25 ejections to enter cylinder chamber 12, the outburst of burning to contact with the high hot air of high pressure produces power.
See also Figure 11, be four-stroke internal combustion engine bidirectional air inlet device the 3rd embodiment of the present invention, itself and first embodiment's difference is: 14 of this second inlet manifold 36B and this crankshaft room are provided with an air compressor 40, the power of this air compressor 40 more can further provide by this crankshaft room 14, promptly this crankshaft room 14 comes transmission to link this air compressor 40 by bent axle 16 and a driving component 42 (as driving belt or other), the gas/air that is sucked by this air compressor 40 is entered in the crankshaft room 14, the operation that makes countercylinder chamber 12 carry out replenishing of gas/air and participate in scavenging by this second inlet manifold 36B.
Comprehensive the above, the content of the above-mentioned explanation of the present invention only be preferred embodiment explanation of the present invention, allly complies with the variation that technological means of the present invention is extended, and all should fall in the scope of appending claims of the present invention.
Claims (14)
1. a four-stroke internal combustion engine bidirectional air inlet device is characterized in that, includes:
One cylinder has one and imports the cylinder chamber that gas burns and breaks out, and this cylinder is provided with an intake valve and an exhaust valve that is connected to cylinder chamber;
One crankshaft room is communicated with this cylinder chamber, and this crankshaft room is provided with bent axle and the connecting rod that is connected, and this connecting rod links a piston, and this piston motion and is provided with the cylinder suction port at contiguous this cylinder chamber place in this crankshaft room in this cylinder chamber;
One first inlet manifold is communicated with this intake valve;
One discharge manifold is communicated with this exhaust valve;
One second inlet manifold is linked to this crankshaft room;
One one-way cock, this one-way cock is located at this second inlet manifold and this crankshaft room constitutes on the path.
2. four-stroke internal combustion engine bidirectional air inlet device according to claim 1 is characterized in that, this first inlet manifold is sent into gas via a Carburetor, and this gas is mixed by air and gasoline, and this cylinder is provided with a spark plug that is connected in cylinder chamber.
3. four-stroke internal combustion engine bidirectional air inlet device according to claim 1 is characterized in that, the gas that this first inlet manifold is sent into is air, and this cylinder is provided with an oil nozzle that is connected in cylinder chamber, to spray into mist of oil shape diesel oil.
4. four-stroke internal combustion engine bidirectional air inlet device according to claim 1 is characterized in that, this second inlet manifold is attached between this crankshaft room and this first inlet manifold.
5. four-stroke internal combustion engine bidirectional air inlet device according to claim 1 is characterized in that, is provided with an air compressor between this second inlet manifold and this crankshaft room.
6. four-stroke internal combustion engine bidirectional air inlet device according to claim 5 is characterized in that, this air compressor and this bent axle be interlock mutually.
7. four-stroke internal combustion engine bidirectional air inlet device according to claim 5 is characterized in that, this second inlet manifold is connected in the cylinder suction port in this crankshaft room.
8. a four-stroke internal combustion engine bidirectional air inlet method is characterized in that, comprising:
(1) aspirating stroke: open intake valve, when upper dead center moves downward, gas is entered in the cylinder chamber at piston by first inlet manifold and intake valve, then one-way cock is closed automatically, make the path blockade between this second inlet manifold and this crankshaft room, so that crankshaft room produces pressure;
(2) secondary air inlet: air is entered in the cylinder chamber through crankshaft room and cylinder suction port;
(3) compression stroke: piston walks to when after bottom dead center revolution makes progress, and begin to compress the gas in this cylinder chamber and make this IC Intake Valve Closes, thereby the one-way cock unlatching makes air be entered in the crankshaft room by second inlet manifold;
(4) power stroke: when this piston walked to upper dead center, the gaseous combustion outburst generation power of control in the cylinder chamber promoted this piston and moves downward, and piston when moving downward this one-way cock close automatically;
(5) exhaust is dashed and put: cylinder chamber is via exhaust valve exclusive segment waste gas, and continuing makes the air in the crankshaft room enter in the cylinder chamber again;
(6) exhaust stroke: when piston makes progress the exhaust action through after bottom dead center preparing revolution, the waste gas that this cylinder chamber's first half produces for the burning back, the unburned air of Lower Half for entering through this cylinder suction port from this crankshaft room, and this moment, thereby one-way cock was opened this second inlet manifold unlatching automatically, it is air-breathing that this crankshaft room is prepared, and air is entered in the crankshaft room by second inlet manifold again, continues this piston is continued when going upward to upper dead center, the waste gas of remainder is got rid of by cylinder chamber, and exhaust stroke finishes.
9. four-stroke internal combustion engine bidirectional air inlet method according to claim 8, wherein the described gas of this step (1) is the combustion gas that becomes with air mixing with gasoline, this step (4) is for making the fuel gas buring outburst with plug ignition.
10. four-stroke internal combustion engine bidirectional air inlet method according to claim 8, wherein the described gas of this step (1) is air, this step (4) produces the burning outburst for to spray into mist of oil shape diesel oil with oil nozzle in cylinder chamber with contact high pressure hot gas.
11. four-stroke internal combustion engine bidirectional air inlet method according to claim 8, when wherein this step (2) moves downward to lower dead centre for piston, cylinder air inlet open between this cylinder chamber and this crankshaft room makes the air that is under pressure in this crankshaft room be entered in the cylinder chamber by this cylinder suction port.
12. four-stroke internal combustion engine bidirectional air inlet method according to claim 8, when wherein this step (5) was this descent of piston to lower dead centre, this exhaust valve was opened, and this cylinder indoor section waste gas is discharged through this exhaust valve.
13. four-stroke internal combustion engine bidirectional air inlet method according to claim 12, after wherein this exhaust valve is opened, this piston continues to advance downwards, form pressure in this crankshaft room greater than the pressure in this cylinder chamber, so that the air in this crankshaft room enters in the cylinder chamber through this cylinder suction port, with the action that participates in scavenging.
14. four-stroke internal combustion engine bidirectional air inlet method according to claim 8, wherein each step enters air in the crankshaft room and is pre-mixed gasoline and becomes combustion gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101698250A CN101684744B (en) | 2008-09-28 | 2008-09-28 | Four-stroke internal combustion engine bidirectional air inlet method and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101698250A CN101684744B (en) | 2008-09-28 | 2008-09-28 | Four-stroke internal combustion engine bidirectional air inlet method and device thereof |
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| CN101684744A CN101684744A (en) | 2010-03-31 |
| CN101684744B true CN101684744B (en) | 2011-10-05 |
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| CN2008101698250A Expired - Fee Related CN101684744B (en) | 2008-09-28 | 2008-09-28 | Four-stroke internal combustion engine bidirectional air inlet method and device thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103256112A (en) * | 2012-02-15 | 2013-08-21 | 蔡兴民 | Two-stroke engine overhead air valve scavenging structure |
| CN110159423B (en) * | 2019-05-10 | 2020-06-19 | 山东舜阳机械有限公司 | Four-stroke internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993372A (en) * | 1989-10-19 | 1991-02-19 | Constantin Mott | Two stroke internal combustion engine with decompression valve |
| DE4220200A1 (en) * | 1991-06-20 | 1993-01-21 | Mitsubishi Heavy Ind Ltd | FOUR-STOCK COMBUSTION ENGINE |
| DE19649202A1 (en) * | 1996-11-27 | 1997-07-03 | Thomas Fackler | Four=stroke piston engine |
| WO2004083614A1 (en) * | 2003-03-17 | 2004-09-30 | Aktiebolaget Electrolux | A four-stroke engine |
-
2008
- 2008-09-28 CN CN2008101698250A patent/CN101684744B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4993372A (en) * | 1989-10-19 | 1991-02-19 | Constantin Mott | Two stroke internal combustion engine with decompression valve |
| DE4220200A1 (en) * | 1991-06-20 | 1993-01-21 | Mitsubishi Heavy Ind Ltd | FOUR-STOCK COMBUSTION ENGINE |
| DE19649202A1 (en) * | 1996-11-27 | 1997-07-03 | Thomas Fackler | Four=stroke piston engine |
| WO2004083614A1 (en) * | 2003-03-17 | 2004-09-30 | Aktiebolaget Electrolux | A four-stroke engine |
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| CN101684744A (en) | 2010-03-31 |
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Granted publication date: 20111005 Termination date: 20180928 |