CN103912378A - Pairwise abreast-arrangement free piston permanent-magnet linear generator - Google Patents
Pairwise abreast-arrangement free piston permanent-magnet linear generator Download PDFInfo
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- CN103912378A CN103912378A CN201410137673.1A CN201410137673A CN103912378A CN 103912378 A CN103912378 A CN 103912378A CN 201410137673 A CN201410137673 A CN 201410137673A CN 103912378 A CN103912378 A CN 103912378A
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Abstract
The invention discloses a pairwise abreast-arrangement free piston permanent-magnet linear generator, belongs to the technical field of electric vehicle engines and mainly solves the problem that system efficiency cannot be improved greatly by an existing free piston permanent-magnet linear generator. The pairwise abreast-arrangement free piston permanent-magnet linear generator is characterized by comprising permanent-magnet linear generators and internal combustion engines, wherein the permanent-magnet linear generators are arranged pairwise and symmetrically and arranged abreast; the internal combustion engines are arranged at one ends of the permanent-magnet linear generators, and upper positioning guide plates are arranged at ports. The other ends of the permanent-magnet linear generators are provided with bouncing levers, each bouncing lever comprises a straight rod, a support seat and push rods, wherein the support seat is arranged in the middle end of the straight rod, and the push rods are arranged at two ends of the straight rod. The support seats are fixed on a generator fixing bottom plate, the push rods at two ends are matched with two rotors respectively, and ends of the rotors, adjacent to the push rods, are provided with push rod magnetism isolation bars. The pairwise abreast-arrangement free piston permanent-magnet linear generator has the advantages that system efficiency is greatly improved and various fuels can be used, and is mainly used for free piston type internal-combustion linear generator units of power sources of electric vehicles.
Description
Technical field
The invention belongs to electric car generator technical field, be specifically related to a kind of free-piston permanent magnet linear generator side by side in pairs of electric drive automobile power source.
Background technique
The whole world is all in developmental research in recent years for electric vehicle, and China is no exception.But the effect obtaining is unsatisfactory, still can not extensively be promoted, it is unresolved that its Main Bottleneck is exactly power source storage battery.Use mixed power, but energy-conservation also can only be in 25% left and right, and cost is high, it is difficult to promote.
At present, in the middle of the auxiliary power unit of serial type hybrid automobile, common motor and rotary generator are replaced by the combination of free piston type generator and linear electric generator, omit connecting rod, make that mass of system alleviates, compact structure, and energy loss is few, stability improves, and has improved the efficiency of system.Existing free piston IC linear generating unit is made up of two large divisions: the one, and the internal-combustion engine being formed by left and right two ends cylinder and piston, intake duct, outlet valve, relief opening etc., being responsible for is reciprocating kinetic energy by the transformation of energy of burning; The 2nd, the permanent magnet linear generator being formed by permanent magnet, coil and iron core etc.Thereby left and right cylinder is lighted a fire in turn and promoted mover to-and-fro motion, and owing to there being permanent magnet on mover, permanent magnet moves in the iron core around coil, produce electric energy and move for motor.
Because two cylinders of existing free piston IC linear generating unit are divided into the two ends of permanent magnet linear generator, be subject to spatial constraints, the stroke of mover falls short of, thereby can not greatly improve the efficiency of system.In addition, existing free piston IC linear generating unit can't be widely used pluralities of fuel, comprises hydrogen.
Summary of the invention
The present invention is directed to the difficult problem existing in above-mentioned prior art, a kind of generator of electric drive automobile power source is provided.Full name is " in pairs side by side free-piston permanent magnet linear generator ".Can greatly improve the efficiency of system and use pluralities of fuel, comprising hydrogen.
Technical solution of the present invention is: one free-piston permanent magnet linear generator side by side in pairs, comprise the permanent magnet linear generator that contains mover, stator, the internal-combustion engine that contains cylinder, piston, igniting and oil spout system, inlet and exhaust valve, mover connects by piston push rod connector with piston, it is characterized in that: described permanent magnet linear generator is to arrange in pairs, and two paired adjacent permanent magnet linear generators are symmetrical arranged side by side; One end of the permanent magnet linear generator of described paired setting is respectively equipped with internal-combustion engine, and port is equipped with positioning guide plate; The other end of the permanent magnet linear generator of described paired setting is provided with spring lever, this spring lever comprises the bearing of straight-bar, the setting of straight-bar middle-end, the push rod that straight-bar two ends arrange, bearing is fixed on generator fixing bottom-plate, the push rod at two ends matches with two movers respectively, and the end that mover and push rod are adjacent is provided with push rod every bar magnet.
Permanent magnet linear generator described in technical solution of the present invention becomes 1 pair of setting.
Permanent magnet linear generator described in technical solution of the present invention becomes 2 pairs of settings.
The main shaft of the mover described in technical solution of the present invention is perfused with high temperature resistant quakeproof rubber.
Cylinder described in technical solution of the present invention is built-in with pressurized machine, utilizes the passive air inlet of pressure difference in pressurized machine and cylinder; On described piston, be furnished with intake valve, can reduce length of piston travel.
The present invention is owing to adopting paired single cylinder free piston internal combustion engine and paired linear permanent-magnet generator to dock side by side separately, by the bottom lever drive generator that forms a whole that freely bounces, thereby alternately outburst of these two paired single cylinder combustion gas, two pistons are moved up and down under the cooperation of spring lever, thereby realize the magnetic force line cutting of linear electric generator, produce electric energy, and exported by linear induction motor system.The present invention is owing to adopting in pairs linear permanent-magnet generator, thereby more existing single linear permanent-magnet generator stroke lengthens greatly, can greatly improve the efficiency of system.The present invention is owing to having removed the inlet and outlet mouth on cylinder, reduce the friction between piston ring and cylinder sleeve, be built-in with pressurized machine at cylinder, utilize the passive air inlet of pressure difference in pressurized machine and cylinder, on piston, be furnished with intake valve, can reduce length of piston travel, adopt the switching of electric control valve control exhaust valve, the pluralities of fuel that can burn, as diesel oil, alcohol and hydrogen.Thermal efficiency ratio traditional combustion engine of the present invention improves 20%, and generator efficiency is greater than 97%.
The present invention has the efficiency that can greatly improve system and the feature that uses pluralities of fuel.The present invention is mainly used in the free piston IC linear generating unit of electric drive automobile power source.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
In figure: igniting and oil spout are 1, inlet and outlet door 2, cylinder body 3, piston 4, piston push rod connector 5, mover 6, stator 7, Engine Push Rod positioning plate 8, upper positioning guide plate 9, push rod be every bar magnet 10, lower positioning guide plate 11, spring lever 12, generator fixing bottom-plate 13.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described further.
Embodiment 1 as shown in Figure 1.Embodiment 1 comprises two permanent magnet linear generators that contain mover 6, stator 7, contain two single cylinders 3, piston 4, igniting and oil spouts and be 1, the internal-combustion engine of inlet and exhaust valve 2, comprise the spring lever 12 being formed by the bearing of straight-bar, the setting of straight-bar middle-end, push rod that straight-bar two ends arrange.Igniting and oil spout are 1 to be arranged on the crown center of cylinder 3, enter, apex igniting and oil spout that exhaust valve 2 is arranged on cylinder are 1 both sides, cylinder 3 is connected with stator 7, piston push rod connector 5 docks with the main shaft of mover 6, mover 6 is fixed in linear motor stator electric 7 with lower positioning guide plate 11 by upper positioning guide plate 9, Engine Push Rod positioning plate 8 is fixed on cylinder 3 cylinder bodies, upper positioning guide plate 9 is arranged on the upper end of stator 7, push rod is arranged on the lower shaft on mover 6 every bar magnet 10, lower positioning guide plate 11 is arranged on stator 7 lower ends, stator 7 is fixed on generator fixing bottom-plate 13, piston 4 is on cylinder 3 is interior, lower motion.Two permanent magnet linear generators be adjacent, be symmetrical arranged side by side, bearing is fixed on generator fixing bottom-plate 13, the push rod at two ends matches with two movers 6 respectively.Two single cylinder free piston internal combustion engines and two linear permanent-magnet generators dock separately side by side, by the bottom lever drive generator that forms a whole that freely bounces.Left and right combustion gas are outburst alternately, piston assembly (comprise left and right piston and both connecting rod of being rigidly connected, connecting rod is double does the secondary of linear electric generator) is moved up and down, thereby realize the magnetic force line cutting of linear electric generator, produce electric energy, and exported by linear induction motor system.
, there is not connecting rod and distribution device in feature of the present invention: 1, mechanism is simple, piston is unique movement parts, and whole motor can have more compact structure and have higher specific power.Meanwhile, the minimizing of movement parts has also improved the reliability of system and the loss of energy; 2, owing to adopting the lever that freely bounces, make engine piston vertical motion up and down, overcome the weakness of opposed motion, increased the time of a stroke acting simultaneously, and extended linear electric motor cutting magnetic line length, the broken-proof of permanent magnet is played to direct effect; 3, frictional loss trifle energy emission reduction efficiency is high, and a large amount of friction energy loss that Liao Gai mechanism brings are fundamentally eliminated in the cancellation of connecting rod; Motor is just subject to being exerted oneself and frictional force on producing by the quality that moves up and down, gas pressure, piston ring pressure, and therefore this generator has potential more high thermal efficiency; Owing to not rotatablely moving and bearing, the frictional loss of engine is very little, can realize running dry in the future, and energy-saving and emission-reduction efficiency is high; 4, good can balance, adopt the twin-tub piston structure that moves up and down side by side, this generator system natural equilibrium.The continuation that has solved energy owing to freely bouncing is extended, and energy obtains conservation, whole system overall process is moved up and down freely, stable equilibrium; 5, variable compression ratio, incendivity pluralities of fuel, piston is not subject to the constraint of mechanical coupling, and therefore the upper and lower stroke of adjustable this generator, realizes alterable compression ratio, thereby applicable to the combustion requirements of pluralities of fuel.The advantage that variable compression ratio is more outstanding is to make this generator be suitable for adopting pluralities of fuel.But for conventional crank-axle engine, change compression ratio and mean increasing engine structure complexity, need weigh the advantages and disadvantages cautiously: and for this generator, without any structural change, therefore multifuel firing is applied and is had innate advantage in this generator; 6, can walk abreast by many these generators, the selection of power and the Installation Flexibility of unit are large.Can combine with many, increase generator total output.When this machine generator failure of separate unit, do not affect the continuous operation of whole unit.Except above-mentioned feature, the present invention also has following potential advantage: linear electric motor in the time starting as the starter motor of engine, in the time of engine parking as break, in the time of engine steady running as generator, also as the do-part of control system; Under certain determines operating mode, move, can realize high efficiency and low emission by strategy; Based on the above performance characteristics of this invention, it has good Economy, emission performance, many fuel tolerances, makes in the lump day by day to become in energy problem, environmental problem today of focus, and this invention is had place to show one's prowess; Structure is extremely compact, efficient, low emission, can increase output power by adjusting size, is very applied as the power plant of electric vehicle.The high power density that possesses, adapt to many fuel characteristics, the difficulty that also will be conducive to improve the vital capacity of military vehicle (electric armored vehicle, unmanned aerial vehicle catapult car, electric tank) and reduce logistics support.
Embodiment 2 as shown in Figure 2.Embodiment 2 as different from Example 1 permanent magnet linear generator becomes 2 pairs of settings, has four permanent magnet linear generators, and every two form 1 pair.Every pair of permanent magnet linear generator is identical with embodiment 1, forms two groups, and power is larger.The present invention also can adopt 3 pairs and 3 pairs of above combining forms.
Thermal efficiency ratio traditional combustion engine of the present invention improves 20%, is combined with permanent magnet linear generator, and generator power is because greatly improving, and generator efficiency is greater than 97%.It can be used pluralities of fuel maximum bright spot, comprises hydrogen.
Claims (5)
1. a free-piston permanent magnet linear generator side by side in pairs, comprise the permanent magnet linear generator that contains mover (6), stator (7), the internal-combustion engine that contains cylinder (3), piston (4), igniting and oil spout system (1), inlet and exhaust valve (2), mover (6) connects by piston push rod connector (5) with piston (4), it is characterized in that: described permanent magnet linear generator is to arrange in pairs, and two paired adjacent permanent magnet linear generators are symmetrical arranged side by side; One end of the permanent magnet linear generator of described paired setting is respectively equipped with internal-combustion engine, and port is equipped with positioning guide plate (9); The other end of the permanent magnet linear generator of described paired setting is provided with spring lever (12), this spring lever (12) comprises the bearing of straight-bar, the setting of straight-bar middle-end, the push rod that straight-bar two ends arrange, bearing is fixed on generator fixing bottom-plate (13), the push rod at two ends matches with two movers (6) respectively, and the end that mover (6) is adjacent with push rod is provided with push rod every bar magnet (10).
2. free-piston permanent magnet linear generator side by side in pairs according to claim 1, is characterized in that: described permanent magnet linear generator becomes 1 pair of setting.
3. free-piston permanent magnet linear generator side by side in pairs according to claim 1, is characterized in that: described permanent magnet linear generator becomes 2 pairs of settings.
4. according to the free-piston permanent magnet linear generator side by side in pairs described in claim 1,2 or 3, it is characterized in that: the main shaft of described mover is perfused with high temperature resistant quakeproof rubber.
5. according to the free-piston permanent magnet linear generator side by side in pairs described in claim 1,2 or 3, it is characterized in that: described cylinder is built-in with pressurized machine; On described piston, be furnished with intake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410137673.1A CN103912378A (en) | 2014-04-08 | 2014-04-08 | Pairwise abreast-arrangement free piston permanent-magnet linear generator |
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| CN201410137673.1A CN103912378A (en) | 2014-04-08 | 2014-04-08 | Pairwise abreast-arrangement free piston permanent-magnet linear generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089779A (en) * | 2015-07-29 | 2015-11-25 | 徐荣兰 | Linear type four-stroke engine |
| CN105986890A (en) * | 2015-02-11 | 2016-10-05 | 中国科学院宁波材料技术与工程研究所 | Free piston type internal combustion linear generator |
| CN113047949A (en) * | 2021-03-12 | 2021-06-29 | 哈尔滨工程大学 | Split-cylinder free piston generator based on PID closed-loop control |
| CN113756874A (en) * | 2020-06-02 | 2021-12-07 | 机械科学研究院浙江分院有限公司 | Steam piston driven linear generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1077318A1 (en) * | 1999-08-19 | 2001-02-21 | Richard Frederick Dawson | Power generator |
| CN101229776A (en) * | 2007-01-22 | 2008-07-30 | 南京理工大学 | Internal combustion-linear generating integrated power system |
| CN101883912A (en) * | 2007-10-04 | 2010-11-10 | 希尔莱特有限责任公司 | Electromagnetic engine |
| CN102425499A (en) * | 2011-12-19 | 2012-04-25 | 北京理工大学 | Dead point controlled free piston internal combustion linear generator |
| CN203809118U (en) * | 2014-04-08 | 2014-09-03 | 姚远 | Pairwiseside-by-sidefree-pistonpermanent-magnet linear generator |
-
2014
- 2014-04-08 CN CN201410137673.1A patent/CN103912378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077318A1 (en) * | 1999-08-19 | 2001-02-21 | Richard Frederick Dawson | Power generator |
| CN101229776A (en) * | 2007-01-22 | 2008-07-30 | 南京理工大学 | Internal combustion-linear generating integrated power system |
| CN101883912A (en) * | 2007-10-04 | 2010-11-10 | 希尔莱特有限责任公司 | Electromagnetic engine |
| CN102425499A (en) * | 2011-12-19 | 2012-04-25 | 北京理工大学 | Dead point controlled free piston internal combustion linear generator |
| CN203809118U (en) * | 2014-04-08 | 2014-09-03 | 姚远 | Pairwiseside-by-sidefree-pistonpermanent-magnet linear generator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986890A (en) * | 2015-02-11 | 2016-10-05 | 中国科学院宁波材料技术与工程研究所 | Free piston type internal combustion linear generator |
| CN105986890B (en) * | 2015-02-11 | 2019-03-15 | 中国科学院宁波材料技术与工程研究所 | Free piston IC linear electric generator |
| CN105089779A (en) * | 2015-07-29 | 2015-11-25 | 徐荣兰 | Linear type four-stroke engine |
| CN113756874A (en) * | 2020-06-02 | 2021-12-07 | 机械科学研究院浙江分院有限公司 | Steam piston driven linear generator |
| CN113047949A (en) * | 2021-03-12 | 2021-06-29 | 哈尔滨工程大学 | Split-cylinder free piston generator based on PID closed-loop control |
| CN113047949B (en) * | 2021-03-12 | 2021-09-21 | 哈尔滨工程大学 | Split-cylinder free piston generator based on PID closed-loop control |
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Application publication date: 20140709 |