CN101865025A - Generator with continuous variable volume compression ratio - Google Patents
Generator with continuous variable volume compression ratio Download PDFInfo
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- CN101865025A CN101865025A CN 201010200591 CN201010200591A CN101865025A CN 101865025 A CN101865025 A CN 101865025A CN 201010200591 CN201010200591 CN 201010200591 CN 201010200591 A CN201010200591 A CN 201010200591A CN 101865025 A CN101865025 A CN 101865025A
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Abstract
The invention discloses a generator with continuous variable volume compression ratio, comprising a sensor, a box body, a bent axle, at least one connecting rod and a piston, wherein one end of the connecting rod is rotatablely connected with an outer shaft cervical collar installed on a shaft neck; the shaft neck of the bent axle is provided with a continuous variable volume compression ratio mechanism which is controlled by a circular ring orbit installed in the box body; a fixed mechanism which is arranged on the box body is provided with the control mechanism of the generator with the continuous variable volume compression ratio; the control mechanism controls the circular ring orbit to control different positions for the outer shaft cervical collar to be sheathed on an upper dead center and a lower dead center to realize different compressed heights and compression ratio so as to improve fuel economy and dynamic property.
Description
Technical field
The present invention relates to the variable of motor and contract, can allow to realize different compression ratios by the different compression heights of control piston when the top dead center than technology.
Background technique
Along with the increasingly stringent of Abgasgesetz and the client requirement to the motor Economy, emission performance and the fuel-economy performance of improving motor have been the greatest difficulty that traditional combustion engine faced.Motor changes the main three-way catalyst that adopts of discharging now, improves the fuel-economy performance and mainly adopts in-cylinder direct injection and changeable air valve technology.In order further to reduce discharging, multiple new combustion mode has appearred now.These new combustion modes mainly are to pursue the formation of low-temperature burning and homogeneous charge, promptly require low charge temperature and uniform mixed gas, also have lower compression ratio, to reduce NOX and PM discharging.For the low-temperature burning technology is realized in the full load mode scope, the application of changeable compression ratio technique is necessary.In order to improve the fuel-economy performance and smooth-going power output under various rotating speed load conditions, the application of changeable compression ratio technique also is necessary on the other hand.
The compression ratio of present most of motor is fixed, and the air inlet charge is few when the slow-speed of revolution, and actual compression ratio is lower than the compression ratio of design, can not make atomizing fuel oil and burning.When high rotating speed or turbosupercharger intervention, aeration quantity is greater than the cylinder internal volume in the cylinder, and actual compression ratio is higher than the compression ratio of design, at this moment is easy to generate pinking and burning in advance, has reduced power output and the increasing infringement to motor greatly.Changeable compression ratio technique can change compression ratio according to the change of air inlet charge, fuel oil energy is fully burnt and avoids pinking.Suitable reduction compression ratio when low-load can effectively reduce discharging.
At present commonplace abroad to the research of variable compression ratio engine, but can realize that the achievement of variable compression ratio function is fewer, and complex structure, be difficult for volume production.
Summary of the invention
Technical problem to be solved by this invention provides a kind of variable compression ratio that continuously changes piston compression height.
The technical solution adopted for the present invention to solve the technical problems is: generator with continuous variable volume compression ratio of the present invention comprises that sensor, casing, bent axle and an end and the outer neck bush that is installed on the axle journal form at least one connecting rod and the piston composition that is rotatably connected; The axle journal of bent axle is provided with continuous variable volume compression ratio mechanism; Variable compression ratio is to control by the ring ring body that is installed in the casing; Casing is provided with fixed mechanism, and fixed mechanism is provided with the operating-controlling mechanism of generator with continuous variable volume compression ratio, controls the ring ring body by operating-controlling mechanism; Be provided with the mechanism that reduces friction with dispersive stress between circular chute and the round boss.
Variable volume compression ratio mechanism is made up of outer neck bush and bent axle, and outer neck bush can slide up and down along the line of centres of bent axle and axle journal; Outer neck bush is installed on axle journal and the crank, and the round boss at two ends is installed in the guiding slip trepanning, and the guiding flip sleeve is installed in the circular chute; The ring ring body is installed in the ring ring body chute; In the annular groove of main journal on the ring ring body.
After taking technique scheme, control circular chute by operating-controlling mechanism and control outer axle journal and be enclosed within position when ending with lower dead center.Thereby change the different compression heights of piston when top dead center and realize different compression ratios.When reducing compression ratio, height when circular chute has reduced outer axle journal and is enclosed within top dead center and lower dead center, because outer neck bush encloses circular chute and rotates, do not rotate with crankshaft center, bent axle from top dead center toward lower dead center during motion main journal and outer neck bush apart from increase gradually.Because the special construction of this variable volume compression ratio engine, when reducing compression ratio expansion acting, the pressure that effectively does work reduces gradually, and the acting radius increases gradually, so just make and can effectively reduce engine torsion equilibrium when top dead center arrives lower dead center engine vibration and improve rotatory inertia.Because the outer neck bush that piston rod drives is to rotate along circular chute, when piston top dead center reduced, stroke of piston did not change, and has so just improved the engine cylinder internal volume.
The invention has the beneficial effects as follows: motor down and according to different control of the required compression ratio of various fuel, makes the compression ratio of motor meet present case most according to air inlet charge and various load conditions in the course of the work.Reach the optimum efficiency of fuel economy, power character and discharging.And can make a motor more extensive to the selectivity of fuel.The present invention can realize that miller cycle further improves fuel economy and power character under full operating mode.The special entity of this variable volume compression ratio engine when reducing compression ratio, can effectively reduce engine vibration and improve rotatory inertia, and improve the engine cylinder internal volume.As cooperate turbosupercharger, and will improve the air inlet charge greatly so, it is high-power to become engine design little discharge capacity to realize.Effectively reduce the motor volume, improve power and weight ratio.Reduce engine weight and volume, reduce complete vehicle quality simultaneously, further save fuel oil.
Description of drawings
This specification comprises following ten width of cloth accompanying drawings:
Fig. 1 is the structural representation of generator with continuous variable volume compression ratio of the present invention;
Fig. 2 is the working principle schematic representation of generator with continuous variable volume compression ratio of the present invention;
Fig. 3 is the side view of generator with continuous variable volume compression ratio bent axle of the present invention;
Fig. 4 is the plan view of the outer neck bush of generator with continuous variable volume compression ratio of the present invention;
Fig. 5 is the right elevation of the outer neck bush of generator with continuous variable volume compression ratio of the present invention;
Fig. 6 is the plan view of generator with continuous variable volume compression ratio guiding flip sleeve of the present invention;
Fig. 7 is the plan view of generator with continuous variable volume compression ratio ring ring body of the present invention;
Fig. 8 is the plan view of invention generator with continuous variable volume compression ratio lift device of the present invention;
Fig. 9 is the plan view of generator with continuous variable volume compression ratio helical turbine group of the present invention;
Figure 10 is the plan view of generator with continuous variable volume compression ratio main journal fixing frame of the present invention;
Figure 11 is the plan view of generator with continuous variable volume compression ratio overall fixed frame of the present invention;
Figure 12 is the sectional view of generator with continuous variable volume compression ratio casing of the present invention;
Component among the figure, toponym and pairing mark: connecting rod 2, piston 5, worm screw 8, actuating motor 9, casing 10, main journal fixed hole 11, ring ring body chute 12, cylinder body 13, compression ratio measuring appliance 14, air inlet charge sensor 15, in-cylinder pressure and combustion temperature sensor 16, turbosupercharger 17, ECU18, bent axle 20, main journal 21, crank 22, axle journal 23, guiding flip sleeve 25, guiding slip trepanning 26, roller 27, outer neck bush 30, round boss 31, ring ring body 40, annular groove 41, circular chute 42, lift device 43, spiral chute 44, helical turbine group 45, spiral boss 46A, spiral boss 46B, turbo tooth 47, main journal fixing frame 50, main journal hole 51, worm screw fixed hole 52A, worm screw fixed hole 52B, overall fixed frame 53
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1, generator with continuous variable volume compression ratio of the present invention comprises that sensor, casing 10, bent axle 20 and an end and the outer neck bush 30 that is installed on the axle journal 23 form at least one connecting rod 2 and piston 5 compositions that are rotatably connected; The axle journal 23 of bent axle 20 is provided with continuous variable volume compression ratio mechanism; Variable compression ratio is to control by the ring ring body 40 that is installed in the casing 10; Casing 10 is provided with fixed mechanism, fixed mechanism is provided with the operating-controlling mechanism of generator with continuous variable volume compression ratio, control ring ring body 40 by operating-controlling mechanism and control the position of outer neck bush 30 when the top dead center, thereby change piston position when top dead center, finally reach the purpose that changes compression ratio.
With reference to Fig. 2, described variable volume compression ratio mechanism: control the position of outer neck bush 30 when top dead center and the lower dead center by circular chute 42.Thereby change the different compression heights of piston 5 when top dead center and realize different compression ratios.
With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, described variable volume compression ratio mechanism comprises that at least one outer neck bush 30 and two ring ring bodies 40 form; Outer neck bush 30 is installed on crank 22 and the axle journal 23 and can slides up and down; Round boss 31 on outer neck bush 30 two ends is installed in the guiding slip trepanning 26, and guiding flip sleeve 25 is installed in the circular chute 42, in the annular groove 41 of main journal 21 on ring ring body 40.
With reference to Fig. 1, Fig. 7, Fig. 8 and Fig. 9, described variable volume compression ratio operating-controlling mechanism is made up of lift device 43 and helical turbine group 45, two spiral boss 46A, 46B on the helical turbine group 45 be installed in respectively the symmetry two lift devices 43 on spiral chute 44 in; Drive by actuating motor 9 and worm screw 8, turbo tooth 47 is connected with scroll bar 8, and lift device 43 is fixedlyed connected with ring ring body 40.
With reference to Figure 10, Figure 11 and Figure 12. described variable volume compression ratio fixed mechanism is made up of main journal fixing frame 50, overall fixed frame 53 and casing 10.Common fixed main shaft neck 21 and helical turbine group 45 and worm screw 8.
Generator with continuous variable volume compression ratio of the present invention is described further the technical program in conjunction with top fundamental diagram:
Motor is in the high compression ratio state before startup and during the slow-speed of revolution, and piston 5 is in the highest top dead center position work, and lift device 43 and ring ring body 40 are in the extreme higher position.When engine running, increase according to the air inlet charge, give ECU18 by intake flow sensor 15 transmission information, by carrying the information to actuating motor 9 after the ECU18 processing, make actuating motor 9 rotations drive worm screw 8, drive in the past direction rotation in 180 degree of the turbo tooth 47 on main journal fixing frame 50 and the overall fixed frame 53.By spiral boss 46A on the helical turbine group 45 and spiral boss 46B, drive symmetrical lift device 43 and move down synchronously.Because lift device 43 is fixedlyed connected with ring ring body 40, and ring ring body 40 is also moved down synchronously.Simultaneously, because the round boss 31 at outer neck bush 30 two ends is installed in the guiding slip trepanning 26, the flip sleeve 25 that leads is installed in the circular chute 42 on the ring ring body 40, and outer neck bush 30 is also moved down synchronously.Because outer neck bush 30 rotates in circular chute 42, an end of connecting rod 2 and outer neck bush 30 are rotationally connected, and the other end of connecting rod 2 is connected with piston 5, thus piston 5 when top dead center, outer neck bush 30 highly reduces when top dead center and lower dead center.So just reduced the compression height of piston, thereby reduced compression ratio at top dead center.
When motor during at low load operation, by ECU18 in-cylinder pressure and combustion temperature sensor 16 information are handled, by above-mentioned working principle, suitably reduce compression ratio and under full operating mode, be achieved by the low-temperature burning technology, dischargings such as NOX and PM are reduced.
When motor when reducing air inlet charge or high loaded process, by ECU18 the information of intake flow sensor 15 and in-cylinder pressure and combustion temperature sensor 16 is handled, carry the information to actuating motor 9, make actuating motor 9 rotations drive worm screw 8, drive in past another direction rotation in 180 degree of the turbo tooth 47 on main journal fixing frame 50 and the overall fixed frame 53.By spiral boss 46A on the helical turbine group 45 and spiral boss 46B, drive symmetrical lift device 43 and ring ring body 40 and move up synchronously.The outer neck bush 30 that is installed in the circular chute 42 is highly raise when top dead center and lower dead center.So just improved the compression height of piston, thereby improved compression ratio at top dead center.Do not producing in the knock range, improving compression ratio as far as possible, can reach Lean Burning Technique and improve fuel economy and power character.
This variable volume compression ratio technique scheme can be regulated compression ratio according to the air inlet charge, makes under the various operating modes, and fuel oil can both fully atomize and burn, and improves power output and fuel-economy performance under the various operating modes.
Generator with continuous variable volume compression ratio of the present invention is not subjected to the restriction of engine cylinder number, can be used on the multicylinder engine, and its working principle is the same.
Claims (8)
1. generator with continuous variable volume compression ratio comprises that sensor, casing (10), bent axle (20) and an end and the outer neck bush (30) that is installed on the axle journal (23) form at least one connecting rod (2) and piston (5) composition that is rotatably connected; It is characterized in that: the axle journal (23) of bent axle (20) is provided with continuous variable volume compression ratio mechanism; Variable compression ratio is to control by the ring ring body (40) that is installed in the casing (10); Casing (10) is provided with fixed mechanism, and fixed mechanism is provided with the operating-controlling mechanism of generator with continuous variable volume compression ratio, controls ring ring body (40) by operating-controlling mechanism; Be provided with the mechanism that reduces friction with dispersive stress between circular chute (42) and the round boss (31).
2. generator with continuous variable volume compression ratio as claimed in claim 1 is characterized in that: described variable volume compression ratio mechanism is made up of outer neck bush (30) and bent axle (20), and outer neck bush can slide up and down along the line of centres of bent axle (20) and axle journal (23); Outer neck bush (30) is installed on axle journal (23) and the crank (22), and the round boss at two ends (31) is installed in the guiding slip trepanning (26), and guiding flip sleeve (25) is installed in the circular chute (42); Ring ring body (40) is installed in the ring ring body chute (12); In the annular groove (41) of main journal (21) on ring ring body (40).
3. generator with continuous variable volume compression ratio as claimed in claim 1 is characterized in that: described fixed mechanism comprises: main journal fixing frame (50) and overall fixed frame (53), fixedly connected with casing (10) by screw mandrel.
4. generator with continuous variable volume compression ratio as claimed in claim 1 is characterized in that: described operating-controlling mechanism comprises ECU (18) and sensor and motor (9), worm screw (8), helical turbine group (45), lift device (43); Motor (9) is connected with worm screw (8), and worm screw (8) is installed in the worm screw fixed hole (52A, 52B) on main journal fixing frame (50) and the overall fixed frame (53); Worm screw (8) is connected with turbo tooth (47), and the spiral boss on the helical turbine group (45) (46A, 46B) is installed in the spiral chute (44) on the lift device (43); Lift device (43) is fixedlyed connected with ring ring body (40).
5. generator with continuous variable volume compression ratio as claimed in claim 2 is characterized in that: described ring ring body chute (12) is arranged on the casing (10), and between main journal fixed hole (11) and crank (22).
6. generator with continuous variable volume compression ratio as claimed in claim 4 is characterized in that: the turbo tooth (47) on the described helical turbine group (45) is on spiral boss (46A, 46B); The spiral angle of two spiral boss (46A, 46B) is no more than 180 degree, and identical along the spiral height of center line symmetry.
7. generator with continuous variable volume compression ratio as claimed in claim 1 is characterized in that: described sensor is made up of compression ratio measuring appliance (14), air inlet charge sensor (15), in-cylinder pressure and combustion temperature sensor (16).
8. generator with continuous variable volume compression ratio as claimed in claim 1 is characterized in that: described reduce friction and dispersive stress mechanism is made up of guiding flip sleeve (25) and roller (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010200591 CN101865025A (en) | 2009-06-04 | 2010-06-02 | Generator with continuous variable volume compression ratio |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910059503 | 2009-06-04 | ||
| CN200910059503.5 | 2009-06-04 | ||
| CN 201010200591 CN101865025A (en) | 2009-06-04 | 2010-06-02 | Generator with continuous variable volume compression ratio |
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| CN101865025A true CN101865025A (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010200591 Pending CN101865025A (en) | 2009-06-04 | 2010-06-02 | Generator with continuous variable volume compression ratio |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653290A (en) * | 2015-01-20 | 2015-05-27 | 西南交通大学 | Parameter-adjustable intelligent high performance engine main framework |
| CN106014625A (en) * | 2016-07-12 | 2016-10-12 | 魏伯卿 | Worm gear supercharging adjusting device for radial movement cylinder-change engine |
| CN106014628A (en) * | 2016-07-12 | 2016-10-12 | 魏伯卿 | Gear control telescopic worm wheel boost adjusting device of radial movement variable-cylinder engine |
| CN109715923A (en) * | 2016-08-10 | 2019-05-03 | 世倍特集团有限责任公司 | Method for verifying the compression of acquired internal combustion engine |
| CN110799739A (en) * | 2017-04-10 | 2020-02-14 | 伊威斯发动机系统有限责任两合公司 | Length-adjustable connecting rod having a cylinder-piston unit with an anti-rotation part |
| CN111622836A (en) * | 2020-06-05 | 2020-09-04 | 张家陶 | Engine crankshaft with adjustable radius |
| CN111927872A (en) * | 2020-09-15 | 2020-11-13 | 重庆科技学院 | Crankshaft system of internal combustion engine with variable compression ratio, internal combustion engine and control method thereof |
| CN115142901A (en) * | 2022-07-07 | 2022-10-04 | 重庆科技学院 | Piston type gas expansion engine |
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| JPH03213629A (en) * | 1990-01-17 | 1991-09-19 | Mitsubishi Motors Corp | Variable compression ratio device of internal combustion engine |
| JP3808266B2 (en) * | 2000-01-28 | 2006-08-09 | 株式会社日本自動車部品総合研究所 | Variable compression ratio engine |
| CN101403342A (en) * | 2008-05-13 | 2009-04-08 | 奇瑞汽车股份有限公司 | Engine with variable compression ratio |
| KR20090104498A (en) * | 2008-03-31 | 2009-10-06 | 현대자동차주식회사 | Variable compression ratio apparatus |
| CN201588694U (en) * | 2009-06-04 | 2010-09-22 | 高伟 | Continuous variable volume compression ratio engine |
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2010
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Patent Citations (5)
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| JPH03213629A (en) * | 1990-01-17 | 1991-09-19 | Mitsubishi Motors Corp | Variable compression ratio device of internal combustion engine |
| JP3808266B2 (en) * | 2000-01-28 | 2006-08-09 | 株式会社日本自動車部品総合研究所 | Variable compression ratio engine |
| KR20090104498A (en) * | 2008-03-31 | 2009-10-06 | 현대자동차주식회사 | Variable compression ratio apparatus |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653290A (en) * | 2015-01-20 | 2015-05-27 | 西南交通大学 | Parameter-adjustable intelligent high performance engine main framework |
| CN106014625A (en) * | 2016-07-12 | 2016-10-12 | 魏伯卿 | Worm gear supercharging adjusting device for radial movement cylinder-change engine |
| CN106014628A (en) * | 2016-07-12 | 2016-10-12 | 魏伯卿 | Gear control telescopic worm wheel boost adjusting device of radial movement variable-cylinder engine |
| CN109715923A (en) * | 2016-08-10 | 2019-05-03 | 世倍特集团有限责任公司 | Method for verifying the compression of acquired internal combustion engine |
| CN109715923B (en) * | 2016-08-10 | 2022-01-14 | 世倍特集团有限责任公司 | Method for verifying the compression of an internal combustion engine |
| CN110799739A (en) * | 2017-04-10 | 2020-02-14 | 伊威斯发动机系统有限责任两合公司 | Length-adjustable connecting rod having a cylinder-piston unit with an anti-rotation part |
| CN110799739B (en) * | 2017-04-10 | 2021-08-31 | 伊威斯发动机系统有限责任两合公司 | Length-adjustable connecting rod having a cylinder-piston unit with an anti-rotation part |
| CN111622836A (en) * | 2020-06-05 | 2020-09-04 | 张家陶 | Engine crankshaft with adjustable radius |
| CN111622836B (en) * | 2020-06-05 | 2021-11-19 | 张家陶 | Engine crankshaft with adjustable radius |
| CN111927872A (en) * | 2020-09-15 | 2020-11-13 | 重庆科技学院 | Crankshaft system of internal combustion engine with variable compression ratio, internal combustion engine and control method thereof |
| CN111927872B (en) * | 2020-09-15 | 2021-08-03 | 重庆科技学院 | Crankshaft system of internal combustion engine with variable compression ratio, internal combustion engine and control method thereof |
| CN115142901A (en) * | 2022-07-07 | 2022-10-04 | 重庆科技学院 | Piston type gas expansion engine |
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Open date: 20101020 |