CN103573375B - A kind of free-piston internal combustion engine generator vibration drive-type piston looling system - Google Patents
A kind of free-piston internal combustion engine generator vibration drive-type piston looling system Download PDFInfo
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- CN103573375B CN103573375B CN201310516286.4A CN201310516286A CN103573375B CN 103573375 B CN103573375 B CN 103573375B CN 201310516286 A CN201310516286 A CN 201310516286A CN 103573375 B CN103573375 B CN 103573375B
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Abstract
The present invention relates to a kind of free-piston internal combustion engine generator vibration drive-type piston looling system, belong to field of energy source power.Mainly comprise: piston, connecting rod, one-way valve, radiator.The piston of both sides is rigidly connected with connecting rod respectively, forms a piston assembly.Oil duct is offered in piston assembly inside; On oil duct, arbitrary position is provided with oil pocket; One-way valve moves left and right in oil pocket; Radiator is fixed between cylinder and generator; Through hole is had, passing through for connecting rod in the middle part of radiator; Spreader surface has radiating fin; Radiator inner hollow, for storing cold oil; In connecting rod and radiator, cold oil contact segment has filler opening and oil outlet; This system, the inertia by one-way valve self carries out pump oil, does not need extra drive unit.Namely achieved the circulation of cold oil by the oil duct of piston assembly inside, reduce the heat load of whole piston connecting rod unit and linear electric generator.
Description
Technical field
The present invention relates to a kind of free-piston internal combustion engine generator vibration drive-type piston looling system, belong to field of energy source power.
Background technique
Existing internal combustion engine generator general structure is that reciprocating internal combustion engine is connected with electric rotating machine by connecting rod, comprise two-stroke and four-stroke two class thermodynamic cycle mode, its shortcoming is that complex structure, volume are comparatively large, the thermal efficiency is low, and tail gas discharging pollutant is more.Free-piston internal combustion engine generator is a kind of novel power device of rising in recent years, formed by free piston IC engine and linear electric generator direct-coupling, free-piston and linear motor rotor are directly connected by it, form unique moving element---piston assembly.During system cloud gray model, the work done of gas in the jar burning expansion, promotes piston and the motion of drive electrical generators mover, then produces electric energy, eventually through shorter bang path, fuel chemical energy is directly converted to electric energy.It has numerous Potential performance advantage, and as mechanical friction loss is few, compact structure volume is little, and energy transferring path is short, and burning and exhausting quality is good.
Piston is the core component of free-piston internal combustion engine generator, be in operation and bear quite high mechanical load and heat load, it is directly connected with linear motor rotor by connecting rod, its heat load is directly delivered on linear motor rotor, have impact on the performance of linear electric motor, make whole power system cannot stable operation.Therefore, very necessary to the cooling of free-piston internal combustion engine generator piston.If cooled with the piston of the type of cooling to free-piston generator of transmission internal combustion engine piston, owing to not having bent axle and oil sump, cooling oil cannot complete circulation by the mode of splashing.In addition, as oil pumping device and the external pipeline of additional drive, so not only part is many, and cost is high, and reduces system works reliability.
Summary of the invention
The object of the invention is the problem in order to solve existing free-piston internal combustion engine generator piston cooling difficulty, a kind of free-piston internal combustion engine generator vibration drive-type piston looling system is provided.
The object of the invention is to be achieved through the following technical solutions.
A kind of free-piston internal combustion engine generator vibration drive-type piston looling system of the present invention, mainly comprises: piston, connecting rod, one-way valve, radiator.
Described piston is the piston that inside is provided with oil pocket and oil duct;
Described connecting rod is that vittate connecting rod is established in inside
Annexation is: the piston of both sides is rigidly connected with connecting rod respectively, forms a piston assembly.Oil duct is offered in piston assembly inside; On oil duct, arbitrary position is provided with oil pocket; One-way valve moves left and right in oil pocket; Radiator is fixed between cylinder and generator; Through hole is had, passing through for connecting rod in the middle part of radiator; Spreader surface has radiating fin; Radiator inner hollow, for storing cold oil; Filler opening and oil outlet is had in the shaft portion contacted with cold oil in radiator; Connecting rod, relative to radiator to-and-fro motion, need ensure that filler opening and oil outlet contact with radiator internal cooling oil always; Because engine design stroke is known, then need to ensure that the length of radiator is greater than the design runlength of motor;
The quality of described one-way valve is larger, then the flow velocity of cold oil is higher, and the operating temperature range that can require according to piston chooses suitable one-way valve mass parameter.
Working procedure:
Two cylinders alternately outburst about free-piston internal combustion engine generator, pressure of explosion promotes whole piston assembly to-and-fro motion, due to the effect of inertial force, one-way valve in internal piston oil pocket vibrates in oil pocket, cold oil in oil pocket can only flow to a direction thus play the effect of pump oil, and is pumped from radiator by low temperature refrigeration oil by oil input channel.Low temperature refrigeration oil flows in the oil duct of internal piston, and after carrying out heat exchange with piston, temperature raises, and flows back to radiator by back oil road.There is radiating fin on the surface of radiator, and the heat of its internal cooling oil is delivered in the middle of air by radiating fin, completes circulation.One-way valve quality is larger, then the flow velocity of cold oil is higher, and the operating temperature range that can require according to piston chooses suitable one-way valve mass parameter.
Beneficial effect
1, a kind of free-piston internal combustion engine generator vibration drive-type piston looling system of the present invention, the inertia by one-way valve self carries out pump oil, does not need extra drive unit.Namely achieved the circulation of cold oil by the oil duct of piston assembly inside, reduce the heat load of whole piston connecting rod unit and linear electric generator.
2, a kind of free-piston internal combustion engine generator vibration drive-type piston looling system of the present invention, whole system component are few, compact structure, manufacture easy to process, technology maturation.Without the need to other pipeline and joint, there is higher reliability.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of free-piston internal combustion engine generator vibration drive-type piston looling system;
Wherein, 1-cylinder, 2-piston, 3-connecting rod, 4-oil pocket, 5-one-way valve, 6-oil input channel, 7-back oil road, 8-radiator, 9-electricity generator stator coil, 10-generator rotor.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention will be further described.
Embodiment 1
A kind of free-piston internal combustion engine generator vibration drive-type piston looling system, mainly comprises: piston 2, connecting rod 3, one-way valve 5, radiator 8.
Described piston 2 is the inner piston 2 being provided with oil pocket 4 and oil duct;
Described connecting rod 3 is for establishing vittate connecting rod 3 in inside
Annexation is: the piston 2 of both sides is rigidly connected with connecting rod 3 respectively, forms piston 2 assembly.Oil duct is offered in piston 2 component internal; On oil duct, arbitrary position is provided with oil pocket 4; One-way valve 5 moves left and right in oil pocket 4; Radiator 8 is fixed between cylinder 1 and generator; Through hole is had, for passing through of connecting rod 3 in the middle part of radiator 8; There is radiating fin on radiator 8 surface; Radiator 8 inner hollow, for storing cold oil; In connecting rod 3 with radiator 8, cold oil contact segment has filler opening and oil outlet; Connecting rod 3 is moving reciprocatingly relative to radiator 8, need ensure that filler opening and oil outlet contact with radiator 8 internal cooling oil always; Because engine design stroke is known, then need to ensure that the width of radiator 8 is greater than the design runlength of motor;
The quality of described one-way valve 5 is larger, then the flow velocity of cold oil is higher, and the operating temperature range that can require according to piston 2 chooses suitable one-way valve 5 mass parameter.
Working procedure:
Two cylinders 1 alternately outburst about free-piston 2 internal combustion engine generator, pressure of explosion promotes the to-and-fro motion of whole piston 2 assembly, due to the effect of inertial force, one-way valve 5 in the inner oil pocket 4 of piston 2 vibrates in oil pocket 4, cold oil in oil pocket 4 can only flow to a direction thus play the effect of pump oil, and is pumped from radiator 8 by low temperature refrigeration oil by oil input channel 6.Low temperature refrigeration oil flows in the oil duct of piston 2 inside, and after carrying out heat exchange with piston 2, temperature raises, and flows back to radiator 8 by back oil road 7.There is radiating fin on the surface of radiator 8, and the heat of its internal cooling oil is delivered in the middle of air by radiating fin, completes circulation.One-way valve 5 quality is larger, then the flow velocity of cold oil is higher, and the operating temperature range that can require according to piston 2 chooses suitable one-way valve 5 mass parameter.
Claims (3)
1. a free-piston internal combustion engine generator vibration drive-type piston looling system, is characterized in that: mainly comprise: piston (2), connecting rod (3), one-way valve (5), radiator (8); The piston (2) of both sides is rigidly connected with connecting rod (3) respectively, forms a piston assembly; Oil duct is offered in piston assembly inside; On oil duct, arbitrary position is provided with oil pocket (4); One-way valve (5) moves left and right in oil pocket (4); Radiator (8) is fixed between cylinder (1) and generator; Radiator (8) middle part has through hole, for passing through of connecting rod (3); There is radiating fin on radiator (8) surface; Radiator (8) inner hollow, for storing cold oil; In connecting rod (3) with radiator (8), cold oil contact segment has filler opening and oil outlet.
2. a kind of free-piston internal combustion engine generator vibration drive-type piston looling system as claimed in claim 1, it is characterized in that: described connecting rod (3) is moving reciprocatingly relative to radiator (8), need ensure that filler opening and oil outlet contact with radiator (8) internal cooling oil always; Because engine design stroke is known, then need to ensure that the width of radiator (8) is greater than the design runlength of motor.
3. a kind of free-piston internal combustion engine generator vibration drive-type piston looling system as claimed in claim 1 or 2, it is characterized in that: the quality of described one-way valve (5) is larger, then the flow velocity of cold oil is higher, and the operating temperature range that can require according to piston (2) chooses suitable one-way valve (5) mass parameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310516286.4A CN103573375B (en) | 2013-10-28 | 2013-10-28 | A kind of free-piston internal combustion engine generator vibration drive-type piston looling system |
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| CN201310516286.4A CN103573375B (en) | 2013-10-28 | 2013-10-28 | A kind of free-piston internal combustion engine generator vibration drive-type piston looling system |
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| CN103573375A CN103573375A (en) | 2014-02-12 |
| CN103573375B true CN103573375B (en) | 2015-12-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105173553A (en) * | 2015-08-28 | 2015-12-23 | 重庆市腾瀚工贸有限公司 | Intermittent transportation device for steering knuckles |
| CN108036009A (en) * | 2017-12-12 | 2018-05-15 | 无锡市盛源汽车配件厂 | Possesses the piston rod of shock absorber for vehicles of heat sinking function |
| CN107887805A (en) * | 2017-12-21 | 2018-04-06 | 重庆麦纳昇科技有限公司 | Energy-saving power distribution cabinet cooling system |
| CN111025150B (en) * | 2019-12-23 | 2021-04-06 | 北京理工大学 | Wide-temperature-range linear motor performance testing method and device |
| CN113029579B (en) * | 2021-02-04 | 2022-06-28 | 昆明理工大学 | Magnetic drive suspension oscillation heat transfer simulation test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4040611A1 (en) * | 1990-12-19 | 1992-07-02 | Man B & W Diesel Ag | Jet piston cooling for IC engines - has air accumulation chamber in piston base |
| CN1163343A (en) * | 1996-04-19 | 1997-10-29 | 金良安 | Self-pressurizing self-lburicating and self cooling internal combustion engine with fully work-producing stroke |
| CN102705101A (en) * | 2012-05-16 | 2012-10-03 | 郑凌 | Cooling system for internal-combustion engine piston |
| CN102877940A (en) * | 2012-10-15 | 2013-01-16 | 北京理工大学 | Starting system of motor type free piston internal combustion power generation device |
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2013
- 2013-10-28 CN CN201310516286.4A patent/CN103573375B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4040611A1 (en) * | 1990-12-19 | 1992-07-02 | Man B & W Diesel Ag | Jet piston cooling for IC engines - has air accumulation chamber in piston base |
| CN1163343A (en) * | 1996-04-19 | 1997-10-29 | 金良安 | Self-pressurizing self-lburicating and self cooling internal combustion engine with fully work-producing stroke |
| CN102705101A (en) * | 2012-05-16 | 2012-10-03 | 郑凌 | Cooling system for internal-combustion engine piston |
| CN102877940A (en) * | 2012-10-15 | 2013-01-16 | 北京理工大学 | Starting system of motor type free piston internal combustion power generation device |
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