CN103470327A - Energy-saving engine and exhaust control method for same - Google Patents
Energy-saving engine and exhaust control method for same Download PDFInfo
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- CN103470327A CN103470327A CN2013104258323A CN201310425832A CN103470327A CN 103470327 A CN103470327 A CN 103470327A CN 2013104258323 A CN2013104258323 A CN 2013104258323A CN 201310425832 A CN201310425832 A CN 201310425832A CN 103470327 A CN103470327 A CN 103470327A
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Abstract
The invention discloses an energy-saving engine and an exhaust control method for the same. The engine comprises a cylinder body and a cylinder cover, wherein the cylinder cover is arranged on the cylinder body; a main valve corresponding to the cylinder body is arranged on the cylinder cover; an intake passage and an exhaust passage are communicated at the main valve in the cylinder cover; an intake valve is arranged in the intake passage; an exhaust valve is arranged in the exhaust passage; an auxiliary exhaust valve is arranged in the main valve; an air vent corresponding to the auxiliary exhaust valve is formed in the main valve, and is communicated with the exhaust passage. According to the engine and the method, the area of the exhaust valves is enlarged, the exhaust valves are sequentially opened, and the auxiliary exhaust valve is opened first to reduce pressure, so that the opening energy consumption and the exhaust resistance of the main valve are reduced, the heat power conversion rate of the engine is increased, and a fuel is saved.
Description
Technical field
The present invention relates to technical field of engines, especially relate to a kind of energy-saving engine and method of controlling exhaust gas thereof.
Background technique
At present, motor mostly is reciprocating-piston engine, and the work of reciprocating-piston engine is divided into four strokes: expansion stroke, exhaust stroke, aspirating stroke, compression stroke.
In engine exhaust strokes, be divided into two stages of free exhaust and forced exhaust, the free exhaust stage: in order in time waste gas to be discharged, adopted exhaust in advance, when piston does not also arrive lower dead center, just open exhaust valve, utilize the pressure Natural excrement part of gas self; The forced exhaust stage: carry out forced exhaust during piston stroking upward, remaining gas is discharged to cylinder.
Existing exhaust stroke has the following disadvantages:
1, motor is for the timely combustion gas of energy, shift to an earlier date exhaust, just open exhaust valve when 30 ° before bottom dead center～80 ° of crank angles of piston arrives, this arrives 30 °～80 ° crank angles before bottom dead center and is called exhaust advance angle, and exhaust in advance must cause working medium to also have partial heat energy not to be converted into mechanical energy; Exhaust advance angle is larger, crosses exhaust early, and the thermal waste caused is just more, and heat conversion is just lower.
2, during forced exhaust, because the gross area of exhaust valve is very little, the sectional area of exhaust passage is very little, only have piston cross-section long-pending 25%～30%, when piston stroking upward, must have exhaust not smooth, situation about can not discharge in time occurs, cause pressure in cylinder constantly to rise, exhaust resistance constantly increases, and will consume more mechanical energy; Obviously, engine speed is higher, and it is also higher that this pressure rises, and exhaust resistance is larger, and the mechanical energy of consumption is more.Due to what discharge, be to also have higher temperature waste gas, itself just has larger pressure this waste gas, and in the exhaust process constantly raise at a kind of like this pressure, the mechanical energy of consumption is larger; Relatively can find: the energy that whole energy specific consumptions of forced exhaust suck the completely gas consumption of cylinder is large, and therefore, in present motor or turbosupercharged engine, it is unscientific that the intake valve gross area is greater than the exhaust valve gross area.And when engine operation, after burning, the total amount of substance of mixed gas is front larger than burning, take the octane burning as example: 2C8H18 (g)+25O2 (g)===16CO2 (g)+18H2O (g), the value that after burning, the total amount of substance of mixed gas increases=(16+18)-(2+25)=7 (mol), be every burning 228 gram octanes, the amount of the gaseous matter increased is 7 moles, so air displacement is larger than air inflow.
3, two exhaust valves of corresponding each cylinder of available engine are opened when exhaust simultaneously, and when opening, in cylinder, pressure is very large, can cause the energy of opening exhaust valve consumption larger.
Available engine also has the following disadvantages, when motor carries out compression stroke, the mixed gas that also sucks full cylinder when idling and little load is compressed, and the air in fact needed during with little load in idling is relative less, non-acting gas compression to unnecessary, must cause unnecessary energy dissipation.
Summary of the invention
For the prior art deficiency, technical problem to be solved by this invention is to provide a kind of energy-saving engine and method of controlling exhaust gas thereof, to reach the resistance that reduces forced exhaust, reduces the energy consumption of forced exhaust, improves the purpose of the hot merit conversion ratio of motor.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of energy-saving engine, comprise cylinder block and head, described cylinder head is arranged on cylinder block, on described cylinder head, corresponding cylinder block is provided with a throttle, gas-entered passageway and exhaust passage throttle place in cylinder head is connected, be provided with air intake valve in described gas-entered passageway, in described exhaust passage, be provided with drain tap.
Be provided with the auxiliary exhaust door in described throttle, on throttle, corresponding auxiliary exhaust door is provided with vent, and vent is connected with exhaust passage.
Also comprise fluid drive, between the housing of described fluid drive and gas pedal, by hydraulic tubing, with oil hydraulic cylinder, be connected, be provided with pressure spring between the housing of described fluid drive and cylinder head, described fluid drive is provided with the slide block I corresponding with cam, also be provided with the slide block II corresponding with pole on valve actuating push rod on fluid drive, be provided with the return spring for slide block I return in the fluid drive inner cylinder.
Be respectively equipped with rocking arm on described air intake valve and drain tap, the unlatching of rocking arm control air intake valve corresponding with the cam of camshaft and drain tap two valves or close.
The method of controlling exhaust gas of energy-saving engine described above comprises the following steps:
1) when motor enters exhaust stroke, the air intake valve in gas-entered passageway is closed, and the drain tap in exhaust passage is opened;
2) the auxiliary exhaust door is opened, and the waste gas in cylinder is discharged in exhaust passage by the throttle upper vent hole;
3) throttle is opened, and the clearance channel that the waste gas in cylinder is opened by throttle is discharged in exhaust passage;
4) will arrive budc when the piston exhaust that moves upward, air intake valve is opened air inlet, sweeps off the residual gas in passage and cylinder;
5) when the piston arrives top dead center, scavenging finishes, and drain tap is closed.
The present invention compared with prior art, has the following advantages:
1, take throttle and auxiliary exhaust door to cooperatively interact, can make exhaust and gas-entered passageway sectional area reach 40%～45% of cylinder cross section, exhaust and gas-entered passageway sectional area have been improved to greatest extent, make the resistance of exhaust and air inlet all reach minimum, fully reduced the energy consumption of air inlet and exhaust;
2, the exhaust valve area increases, and reduces exhaust crank angle in advance, makes the heat energy mechanical energy that is converted into as much as possible of working medium, reduces the resistance of forced exhaust, reduces the energy consumption of forced exhaust, improves the hot merit conversion ratio of motor, saves fuel oil;
3, this motor can be realized the late release valve, discharges unnecessary non-acting gas when idling and little load, reduces the energy consumption of pressurized gas, and can meet under different operating modes, enters the air quantity of requirement in cylinder;
4, exhaust valve is successively opened successively, and the auxiliary exhaust door is first opened decompression, reduces the energy consumption that throttle is opened.
The accompanying drawing explanation
Below to each width accompanying drawing of this specification, expressed content and the mark in figure are briefly described:
Fig. 1 is the cylinder configuration schematic diagram that the present invention has throttle and auxiliary exhaust door.
Fig. 2 is Fig. 1 cylinder operation control structure schematic diagram.
The cylinder configuration schematic diagram that Fig. 3 is late release valve of the present invention.
In Fig. 1 to Fig. 3: 12. throttles, 13. auxiliary exhaust door, 14. air intake valve, 15. drain tap, 16. gas-entered passageway, 17. exhaust passage, 18. rocking arm I, 19. rocking arm II, 20. valve actuating push rod I, 21. valve actuating push rod II, 22. vent, 23. spark plug, 24. cam I, 25. cam II, 26. cam III, 27. cam IV, 28. the control spring of air intake valve, 29. the control spring of drain tap, 30. the control spring of auxiliary exhaust door, 31. piston, 32. the control spring of throttle, 33. oil hydraulic cylinder I, 34. oil hydraulic cylinder II, 35. control link, 36. fluid drive, 37. slide block I, 38. slide block II, 39. return spring, 40. pole, 41. gas pedal, 42. pressure spring.
Embodiment
Below contrast accompanying drawing, the description by embodiment, be described in further detail the specific embodiment of the present invention.
As depicted in figs. 1 and 2, this energy-saving engine, comprise cylinder block and head, cylinder head is arranged on cylinder block, on cylinder head, corresponding cylinder block is provided with a throttle, gas-entered passageway and exhaust passage throttle place in cylinder head is connected, and is provided with air intake valve 14 in gas-entered passageway 16, is provided with drain tap 15 in exhaust passage 17.Be provided with auxiliary exhaust door 13 in throttle 12, on throttle 12, corresponding auxiliary exhaust door is provided with vent 22, and vent is connected with exhaust passage.
In the motor that throttle and auxiliary exhaust door combine, throttle 12 areas reach 55% of cylinder cross section, and the air outlet flue sectional area formed while opening fully can reach 40%～45% of cylinder cross section; Auxiliary exhaust door 13 is embedded in throttle 12; During in closed condition, can close the vent 22 of throttle 12 when auxiliary exhaust door 13, when auxiliary exhaust door 13 is opened, the gas in cylinder can flow to exhaust passage 17 discharges to vent 22 again by the Clearance Flow of opening.
This energy-saving engine working principle and method of controlling exhaust gas are:
When motor carries out expansion stroke, control spring 28 by air intake valve is controlled air intake valve 14 in gas-entered passageways in closed condition, when piston 31 motions arrive before bottom dead center, cam III 26 is jack-up rocking arm II 19 upwards, open the drain tap 15 in exhaust passage, meanwhile, cam I 24 is applied to valve actuating push rod II 21 downwards first opens auxiliary exhaust door 13, gas in cylinder flow to exhaust passage 17 by the Clearance Flow of opening to vent 22 again and discharges, after cylinder pressure descends, cam I 24 continues the downward top gas door push rod I 20 of motion clockwise, open throttle 12, Clearance Flow that the gas of cylinder opens by throttle 17 is discharged to exhaust passage.
When throttle 12 is opened, the exhaust passage sectional area of formation can reach 40%～45% of cylinder cross section, so exhaust is very unobstructed, and exhaust resistance is very little, and it is minimum that exhaust energy consumption reaches.
When piston 31 exhaust that moves upward will arrive budc, cam IV 27 is rotated upwards jack-up rocking arm I 18, air intake valve 14 in gas-entered passageway is opened, turbosupercharging is by the gas-entered passageway air inlet and carry out scavenging, sweep off passage and the interior residual gas of cylinder between two valves, after scavenging finishes, the projection of cam III 26 has clockwise rotated below, the control spring 29 of drain tap makes the descending exhaust passage 17 of closing of drain tap 15, air starts to enter cylinder, at this moment, cam II 25 is taken over cam I 24 and is continued to act on valve actuating push rod I 20, make throttle still stay open state, aspirating stroke starts to carry out, after aspirating stroke completes, the control spring 32 of throttle pops up, and throttle 12 is closed, and meanwhile the control spring 30 of auxiliary exhaust door also pops up, and auxiliary exhaust door 13 is closed, motor starts compression stroke, and after compression stroke completes, in this cylinder, by spark plug 23 igniting, fuel oil can take in-cylinder direct injection to supply with.
In exhaust process, the throttle classification of auxiliary exhaust door and exhaust is successively opened successively, and the auxiliary exhaust door is first opened decompression, reduces the energy consumption that throttle is opened.
As shown in Figure 3, be provided with fluid drive between the support 40 of gas pedal 41 and valve actuating push rod, be respectively equipped with slide block I 37 and slide block II 38 in the oil cylinder of hydrostatic sensor, slide block I and the perpendicular layout of slide block II, the slide block I is corresponding with cam, and the slide block II is corresponding with the pole 40 on valve actuating push rod; Be provided with pressure spring 42 between the housing of hydrostatic sensor and cylinder head, be provided with the return spring 39 that slide block I return is used in oil cylinder, the housing of control link 35 1 ends and hydrostatic sensor is fixed together, the control link the other end is connected with the piston rod of oil hydraulic cylinder II 34, the oil hydraulic cylinder II is connected to oil hydraulic cylinder I 33 by hydraulic tube again, and the piston rod of oil hydraulic cylinder I is connected with gas pedal 41.
When motor during in idling, people's pin is totally released gas pedal 41, pressure spring 42 just makes fluid drive 36 move right, cam II 25 is applied to the slide block I 37 of fluid drive 36, and extruding slide block I 37 is slided it left, by hydraulic transmission, the slide block II 38 of fluid drive is pressed down, be applied on the pole 40 of valve actuating push rod, make throttle 12 late releases, piston is at this moment in up compression stroke, the air that do not do work that discharge section is unnecessary; After said process completes, the cam II 25 of rotation breaks away from slide block I 37, and return spring 39 promotes slide block I 37 and slides to the right, return to original position, meanwhile, slide block II 38 is unclamped the pole 40 of valve actuating push rod, throttle 12 is closed, and piston continues up compression residual gas.In said process, owing to having discharged the unnecessary gas that do not do work, therefore reduced the energy consumption of pressurized gas, reach energy-conservation purpose.
When motor at full capacity the time, the downward accelerator pedal 41 of people's pin, oil hydraulic cylinder I 33 is delivered to oil hydraulic cylinder II 34 by pressure, promotes control link 35 and is moved to the left, and pulls fluid drive 36 also to be moved to the left, slide block I 37 is away from cam II 25, cam II 25 just can not be applied on slide block I 37, just can late release throttle 12, and throttle 12 can be closed in time, making in cylinder has enough gas, meets the needs of operating mode at full capacity.
The people is according to the different operating modes pedal of stepping on the throttle, and oil hydraulic cylinder I 33 is transmitted pressure to oil hydraulic cylinder II 34, makes control link 35 drive fluid drives; Make fluid drive 36 keep different distance according to different operating modes and cam II 25, fluid drive 36, according to the time length of different operating conditions throttle 12 late releases, reaches the air quantity required while meeting different operating mode.
The above is exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present invention and technological scheme carry out; or without improving, design of the present invention and technological scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (5)
1. an energy-saving engine, comprise cylinder block and head, described cylinder head is arranged on cylinder block, it is characterized in that: on described cylinder head, corresponding cylinder block is provided with a throttle, gas-entered passageway and exhaust passage throttle place in cylinder head is connected, be provided with air intake valve in described gas-entered passageway, in described exhaust passage, be provided with drain tap.
2. energy-saving engine as claimed in claim 1, it is characterized in that: be provided with the auxiliary exhaust door in described throttle, on throttle, corresponding auxiliary exhaust door is provided with vent, and vent is connected with exhaust passage.
3. energy-saving engine as claimed in claim 1, it is characterized in that: also comprise fluid drive, between the housing of described fluid drive and gas pedal, by hydraulic tubing, with oil hydraulic cylinder, be connected, be provided with pressure spring between the housing of described fluid drive and cylinder head, described fluid drive is provided with the slide block I corresponding with cam, also be provided with the slide block II corresponding with pole on valve actuating push rod on fluid drive, be provided with the return spring for slide block I return in the fluid drive inner cylinder.
4. as energy-saving engine as described in claim 2 or 3, it is characterized in that: be respectively equipped with rocking arm on described air intake valve and drain tap, the unlatching of rocking arm control air intake valve corresponding with the cam of camshaft and drain tap two valves or close.
5. the method for controlling exhaust gas of energy-saving engine as claimed in claim 4, it is characterized in that: described method of controlling exhaust gas comprises the following steps:
1) when motor enters exhaust stroke, the air intake valve in gas-entered passageway is closed, and the drain tap in exhaust passage is opened;
2) the auxiliary exhaust door is opened, and the waste gas in cylinder is discharged in exhaust passage by the throttle upper vent hole;
3) throttle is opened, and the clearance channel that the waste gas in cylinder is opened by throttle is discharged in exhaust passage;
4) will arrive budc when the piston exhaust that moves upward, air intake valve is opened air inlet, sweeps off the residual gas in passage and cylinder;
5) when the piston arrives top dead center, scavenging finishes, and drain tap is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425832.3A CN103470327B (en) | 2013-09-17 | 2013-09-17 | Energy-saving engine and exhaust control method for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425832.3A CN103470327B (en) | 2013-09-17 | 2013-09-17 | Energy-saving engine and exhaust control method for same |
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| Publication Number | Publication Date |
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| CN103470327A true CN103470327A (en) | 2013-12-25 |
| CN103470327B CN103470327B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310425832.3A Expired - Fee Related CN103470327B (en) | 2013-09-17 | 2013-09-17 | Energy-saving engine and exhaust control method for same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023340A (en) * | 2017-05-23 | 2017-08-08 | 湖北科技学院 | A kind of automobile engine |
| CN110043388A (en) * | 2019-05-18 | 2019-07-23 | 崔宝才 | Internal combustion engine air-exhausting air-entering air interchanger |
| CN115288823A (en) * | 2022-08-05 | 2022-11-04 | 山东赛马力发电设备有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
| WO2023051604A1 (en) * | 2021-09-29 | 2023-04-06 | 李健 | Universal gas valve for gas intake and exhaust of engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002103174A1 (en) * | 2001-06-14 | 2002-12-27 | Spyridon Pappas | Variable displacement and variable compression ratio internal combustion engine, powered by alternative fuel |
| US6817326B1 (en) * | 2003-09-22 | 2004-11-16 | Kevin J. Anibas | Valve system for internal combustion engines |
| CN101349174A (en) * | 2008-08-07 | 2009-01-21 | 靳宇男 | Combined valve body external opening distribution engine |
| CN202007717U (en) * | 2010-07-24 | 2011-10-12 | 钱勇胜 | Big-valve four-stroke diesel engine |
| CN203452863U (en) * | 2013-09-17 | 2014-02-26 | 汪辉 | Energy-saving engine |
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2013
- 2013-09-17 CN CN201310425832.3A patent/CN103470327B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002103174A1 (en) * | 2001-06-14 | 2002-12-27 | Spyridon Pappas | Variable displacement and variable compression ratio internal combustion engine, powered by alternative fuel |
| US6817326B1 (en) * | 2003-09-22 | 2004-11-16 | Kevin J. Anibas | Valve system for internal combustion engines |
| CN101349174A (en) * | 2008-08-07 | 2009-01-21 | 靳宇男 | Combined valve body external opening distribution engine |
| CN202007717U (en) * | 2010-07-24 | 2011-10-12 | 钱勇胜 | Big-valve four-stroke diesel engine |
| CN203452863U (en) * | 2013-09-17 | 2014-02-26 | 汪辉 | Energy-saving engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023340A (en) * | 2017-05-23 | 2017-08-08 | 湖北科技学院 | A kind of automobile engine |
| CN107023340B (en) * | 2017-05-23 | 2023-02-28 | 湖北科技学院 | Automobile engine |
| CN110043388A (en) * | 2019-05-18 | 2019-07-23 | 崔宝才 | Internal combustion engine air-exhausting air-entering air interchanger |
| WO2023051604A1 (en) * | 2021-09-29 | 2023-04-06 | 李健 | Universal gas valve for gas intake and exhaust of engine |
| CN115288823A (en) * | 2022-08-05 | 2022-11-04 | 山东赛马力发电设备有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
| CN115288823B (en) * | 2022-08-05 | 2024-07-19 | 江西维德机械制造有限公司 | Pressure relief type engine exhaust valve for side wall air outlet |
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| CN103470327B (en) | 2015-07-08 |
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