CN102418600B - Hydraulic high-speed free piston linear generator - Google Patents
Hydraulic high-speed free piston linear generator Download PDFInfo
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- CN102418600B CN102418600B CN 201110427533 CN201110427533A CN102418600B CN 102418600 B CN102418600 B CN 102418600B CN 201110427533 CN201110427533 CN 201110427533 CN 201110427533 A CN201110427533 A CN 201110427533A CN 102418600 B CN102418600 B CN 102418600B
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Abstract
The invention relates to a hydraulic high-speed free piston linear generator and belongs to the field of energy power. The hydraulic high-speed free piston linear generator mainly comprises a free piston internal combustion engine, a hydraulic transmission mechanism and a linear generator, wherein the hydraulic transmission mechanism comprises a first hydraulic piston, a first hydraulic cavity, a first hydraulic pump, a high-pressure oil pipe, a second hydraulic cavity, a second hydraulic piston and a second hydraulic pump; the connection relation in the hydraulic transmission mechanism is that: the first hydraulic piston is arranged in the first hydraulic pump, the second hydraulic piston is arranged in the second hydraulic pump, and the first hydraulic pump is communicated with the second hydraulic pump through the high-pressure oil pipe, so that the hydraulic transmission mechanism is formed; two free pistons of the internal combustion engine and the first hydraulic piston form a piston component through connecting rods; and an active cell of the linear generator is connected with the second hydraulic piston through another connecting rod. By adopting the hydraulic transmission mechanism, the cutting speed of a motor active cell is increased and the working efficiency is improved; and the speed of the motor active cell is n times higher than the motion speed of the piston.
Description
Technical field
The present invention relates to a kind of hydraulic type high speed free piston linear generator, belong to the energy source and power field.
Background technique
The general structure of existing internal combustion engine generator is that reciprocating internal combustion engine links to each other with electric rotating machine by connecting rod, comprise two-stroke and four-stroke two class thermodynamic cycle modes, its shortcoming is that complex structure, volume are big, the thermal efficiency is low, and tail gas discharging pollutant is more.Particularly because the straight line motion of piston can't directly be realized rotating power output, so change by connecting rod, traditional bent axle mainly is made up of crank, crank throw and crank pin, its main feature is the ladder shaft part, the piston group can not obtain balance completely because of reciprocal inertia force and the moment of inertia that to-and-fro motion causes in the working procedure, the vibration and noise problem of Yin Faing becomes increasingly conspicuous thus, has had a strong impact on the development of internal combustion engine generator.
In recent years, people are being devoted to seek a kind of energy conversion efficiency height always, and vibration noise small piston formula internal combustion engine generator in the hope of solving variety of issue above-mentioned, has been done number of research projects for this reason.Wherein, the free piston IC linear generating set is a kind of novel energy conversion equipment that free piston IC engine and linear electric generator coupling form afterwards, invented at present, and some research institutions have launched research to it, Li Qingfeng, Xiao advances, Huang Zhen. free piston IC generator simulation study [J]. Chinese mechanical engineering, 2009,20 (8): 911-916. is owing to be subjected to the restriction of internal-combustion engine technology, the movement velocity of internal combustion engine is lower at present, caused linear electric generator mover speed also lower, mean velocity is no more than 15m/s usually, and energy conversion efficiency is also not too high, therefore can not satisfy the requirement of high-speed straight-line generator, reduce the using scope of internal combustion engine generator virtually.In addition, because space rate is lower, under the prerequisite of equal-wattage, linear electric generator needs bigger volume could satisfy the requirement of power, therefore owing to the restriction of speed, has reduced the specific volume power of internal combustion engine generator.
Summary of the invention
The objective of the invention is in order to solve the lower problem of generator mover speed in the prior art, thereby proposed a kind of hydraulic type high speed free piston linear generator.
The objective of the invention is to be achieved through the following technical solutions.
A kind of hydraulic type high speed free-piston internal-combustion linear generator of the present invention, it mainly comprises free piston internal combustion engine, fluid drive mechanism and linear electric generator.Free piston internal combustion engine comprises: cylinder, piston, intake valve, exhaust valve, oil sprayer, air-exhausting air-entering controller; Fluid drive mechanism comprises: first hydraulic piston, first hydraulic pressure cavity, first oil hydraulic pump, high-pressure oil pipe, second hydraulic pressure cavity, second hydraulic piston, second oil hydraulic pump; Linear electric generator comprises: electric mover, motor stator;
Its annexation is: first hydraulic piston places within first oil hydraulic pump; Second hydraulic piston places within second oil hydraulic pump; First oil hydraulic pump is communicated with the formation fluid drive mechanism by high-pressure oil pipe with second oil hydraulic pump; Two free-pistons of internal-combustion engine form a piston assembly by connecting rod and first hydraulic piston, and the mover of linear electric generator is connected with second hydraulic piston by another connecting rod.
A kind of hydraulic type high speed free piston linear generator of the present invention, its working procedure comprises cold machine start-up course and running; In cold machine start-up course, linear electric motor are operated under the electric motor mode; In running, linear electric motor are operated under the generator mode, and piston assembly is to-and-fro motion in cylinder of internal-combustion engine, drive the electric mover cutting magnetic induction line by the liquid driving mechanism, produce electric energy output; Its detailed operation process is respectively:
1) cold machine start-up course.This device is by means of the external force of motor, electric mover drives second hydraulic piston and carries out straight line motion, because fluid drive mechanism links to each other with electric mover, first hydraulic piston also can be along with connecting rod is done straight line motion, this moment, internal-combustion engine wherein was in compression stroke in the cylinder, air in the compression cylinder is to top dead center, when piston moves to top dead center, the oil sprayer that is installed in cylinder head ejects high pressure fuel, and compressed burning, produce high-pressure gas, promote piston and move to lower dead center, begin external work done, cold machine start-up course is finished;
2) running.Two cylinder interior of free piston internal combustion engine are explosive combustion in turn respectively, promotes piston assembly and carries out straight line motion.Piston is when top dead center, and the combustion gas pressure of explosion that the high pressure fuel burning produces promotes piston and moves to lower dead center, does work, and by fluid drive mechanism, makes the electric mover cutting magnetic induction line, produces electric energy output.The speed of electric mover improves n doubly (diameter of the diameter of n=first hydraulic piston/second hydraulic piston) than piston movement speed.
Beneficial effect
1, a kind of hydraulic type high speed free piston linear generator of the present invention, adopted fluid drive mechanism, thereby improved electric mover cutting speed, increased working efficiency, the speed of electric mover improves n doubly (diameter of the diameter of n=first hydraulic piston/second hydraulic piston) than piston movement speed.
2, as the driving mechanism of critical component, mainly being made up of mekydro and hydraulic pressure cavity, is mature technology, and the reliability height is made easy to processly, and cost is low, and is convenient to realize standardization and commercialization.
Description of drawings
Fig. 1 is embodiment's structural representation;
Among the figure, 1-cylinder, 2-piston, 3-intake valve, 4-exhaust valve, 5-oil sprayer, 6-air-exhausting air-entering controller, 7-first hydraulic piston, 8-first hydraulic pressure cavity, 9-first oil hydraulic pump, 10-high-pressure oil pipe, 11-second hydraulic pressure cavity, 12-second hydraulic piston, 13-second oil hydraulic pump, 14-electric mover, 15-motor stator;
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Embodiment 1
A kind of hydraulic type high speed free-piston internal-combustion linear generator of the present invention, it mainly comprises free piston internal combustion engine, fluid drive mechanism and linear electric generator.Free piston internal combustion engine comprises: cylinder 1, piston 2, intake valve 3, exhaust valve 4, oil sprayer 5, air-exhausting air-entering controller 6; Fluid drive mechanism comprises: first hydraulic piston 7, first hydraulic pressure cavity 8, first oil hydraulic pump 9, high-pressure oil pipe 10, second hydraulic pressure cavity 11, second hydraulic piston 12, second oil hydraulic pump 13; Linear electric generator comprises: electric mover 14, motor stator 15;
First hydraulic piston 7 places within first oil hydraulic pump 9; Second hydraulic piston 12 places within second oil hydraulic pump 13; First oil hydraulic pump 9 is communicated with the formation fluid drive mechanism by high-pressure oil pipe 10 with second oil hydraulic pump 13; Two free-pistons of internal-combustion engine form a piston assembly by connecting rod and first hydraulic piston 7, and the mover 14 of linear electric generator is connected with second hydraulic piston 12 by another connecting rod.The diameter ratio of the diameter of first hydraulic piston 7 and second hydraulic piston 12 is 3.
1) cold machine start-up course.This device is by means of the external force of motor, electric mover 14 drives second hydraulic piston 12 and carries out straight line motion, because fluid drive mechanism links to each other with electric mover 14, first hydraulic piston 7 also can be along with connecting rod is done straight line motion, be in compression stroke in this moment cylinder of internal-combustion engine 1, air in the compression cylinder is to top dead center, when piston 2 moves to top dead center, the oil sprayer 5 that is installed in cylinder head ejects high pressure fuel, and compressed burning, produce high-pressure gas, promote piston 2 and move to lower dead center, begin external work done, cold machine start-up course is finished;
2) running.Two cylinder interior of free piston internal combustion engine are explosive combustion in turn respectively, promotes piston assembly and carries out straight line motion.Piston is when top dead center, and the combustion gas pressure of explosion that the high pressure fuel burning produces promotes piston and moves to lower dead center, does work, and by fluid drive mechanism, makes electric mover 14 cutting magnetic induction lines, produces electric energy output.The speed of electric mover improves 3 times than piston movement speed.
Claims (1)
1. a hydraulic type high speed free-piston internal-combustion linear generator mainly comprises free piston internal combustion engine, linear electric generator, fluid drive mechanism; Free piston internal combustion engine comprises: cylinder (1), piston (2), intake valve (3), exhaust valve (4), oil sprayer (5), air-exhausting air-entering controller (6); Fluid drive mechanism comprises: first hydraulic piston (7), first hydraulic pressure cavity (8), first oil hydraulic pump (9), high-pressure oil pipe (10), second hydraulic pressure cavity (11), second hydraulic piston (12), second oil hydraulic pump (13); Linear electric generator comprises: electric mover (14), motor stator (15); It is characterized in that its annexation is: first hydraulic piston (7) places within first oil hydraulic pump (9); Second hydraulic piston (12) places within second oil hydraulic pump (13); First oil hydraulic pump (9) is communicated with the formation fluid drive mechanism by high-pressure oil pipe (10) with second oil hydraulic pump (13); Two free-pistons of internal-combustion engine form a piston assembly by connecting rod and first hydraulic piston (7), and the mover of linear electric generator (14) is connected with second hydraulic piston (12) by another connecting rod; Adopted fluid drive mechanism, the diameter ratio of the diameter of first hydraulic piston (7) and second hydraulic piston (12) is for being set at 3, and the speed of linear electric generator mover (14) is improved 3 times;
Its working procedure is:
1) cold machine start-up course: electric mover (14) drives second hydraulic piston (12) and carries out straight line motion, because fluid drive mechanism links to each other with electric mover (14), first hydraulic piston (7) also can be along with connecting rod is done straight line motion, be in compression stroke in this moment cylinder of internal-combustion engine (1), air in the compression cylinder is to top dead center, when piston (2) when moving to top dead center, the oil sprayer (5) that is installed in cylinder head ejects high pressure fuel, and compressed burning, produce high-pressure gas, promote piston (2) to the lower dead center operation, begin external work done, cold machine start-up course is finished;
2) running: two cylinder interior of free piston internal combustion engine are explosive combustion in turn respectively, promotes piston assembly and carries out straight line motion; Piston is when top dead center, and the combustion gas pressure of explosion that the high pressure fuel burning produces promotes piston and moves to lower dead center, does work, and by fluid drive mechanism, makes electric mover (14) cutting magnetic induction line, produces electric energy output.
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| CN 201110427533 CN102418600B (en) | 2011-12-19 | 2011-12-19 | Hydraulic high-speed free piston linear generator |
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| CN 201110427533 CN102418600B (en) | 2011-12-19 | 2011-12-19 | Hydraulic high-speed free piston linear generator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051059A (en) * | 2006-08-28 | 2008-03-06 | Mazda Motor Corp | Free-piston engine |
| CN101240744A (en) * | 2008-03-18 | 2008-08-13 | 陈鲁健 | Hydraulic type dynamic machinery |
| JP2008223657A (en) * | 2007-03-14 | 2008-09-25 | Mazda Motor Corp | Free-piston engine |
| DE102008004879A1 (en) * | 2008-01-17 | 2009-07-23 | Robert Bosch Gmbh | Free piston engine for e.g. excavator, has heat engine with free pistons, linear generator driven by heat engine for generating electrical energy, and pump assembly driven by heat engine for generating hydraulic and/or pneumatic energy |
-
2011
- 2011-12-19 CN CN 201110427533 patent/CN102418600B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051059A (en) * | 2006-08-28 | 2008-03-06 | Mazda Motor Corp | Free-piston engine |
| JP2008223657A (en) * | 2007-03-14 | 2008-09-25 | Mazda Motor Corp | Free-piston engine |
| DE102008004879A1 (en) * | 2008-01-17 | 2009-07-23 | Robert Bosch Gmbh | Free piston engine for e.g. excavator, has heat engine with free pistons, linear generator driven by heat engine for generating electrical energy, and pump assembly driven by heat engine for generating hydraulic and/or pneumatic energy |
| CN101240744A (en) * | 2008-03-18 | 2008-08-13 | 陈鲁健 | Hydraulic type dynamic machinery |
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