CN112879154A - Single-acting hydraulic type internal combustion engine linear power generation device - Google Patents
Single-acting hydraulic type internal combustion engine linear power generation device Download PDFInfo
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- CN112879154A CN112879154A CN202110038688.2A CN202110038688A CN112879154A CN 112879154 A CN112879154 A CN 112879154A CN 202110038688 A CN202110038688 A CN 202110038688A CN 112879154 A CN112879154 A CN 112879154A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B71/00—Free-piston engines; Engines without rotary main shaft
- F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
- F02B71/045—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby with hydrostatic transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/041—Linear electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1869—Linear generators; sectional generators
- H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
- H02K7/1884—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts structurally associated with free piston engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention belongs to the technical field of energy power, and discloses a single-action hydraulic internal combustion engine linear power generation device which comprises an air inlet pipe, a gas pressurization mechanism, a spark plug, an exhaust pipe, an internal combustion engine, a counterweight mechanism, a linear generator, a hydraulic plunger cylinder, a one-way valve, an electromagnetic valve, an energy accumulator, a manual pump, a pilot operated overflow valve and an oil cylinder, wherein the internal combustion engine comprises an internal combustion engine cylinder and a free piston; the invention solves the problems of low conversion efficiency and narrow working condition application range of the crankshaft internal combustion engine power generation device in the prior art, and is suitable for outputting electric energy by fuel gas.
Description
Technical Field
The invention relates to the technical field of energy power, in particular to a single-action hydraulic type internal combustion engine linear power generation device.
Background
The internal combustion engine is a power machine which combines various mechanical components to convert chemical energy of fuel into mechanical energy, and has the advantages of high thermal efficiency, wide power range and the like compared with other heat engines, the efficiency of the heat engine in a laboratory at present reaches 48%, the rated power range also ranges from zero to thousands of watt hours, and the internal combustion engine is widely applied to various machines such as automobiles, ships, cranes and the like; however, because the mechanical components combined with the internal combustion engine are generally crankshafts, turntables, cams and the like, the problems of complex device layout, numerous parts, large vibration, high fuel requirement, large emission pollution and the like are caused, and the conversion efficiency is low due to the influence of the mechanical power characteristics of the internal combustion engine; in recent years, many researches and experiments have been conducted on how to improve power generation efficiency and how to design a more efficient internal combustion engine, and the main research on the internal combustion engine is to reduce the weight thereof, and to demand simplification of the structure, reduction of emissions, improvement of high dependence on fuel quality, and the like.
Compared with the existing commonly used crankshaft internal combustion engine power generation device, the hydraulic internal combustion engine linear power generation device has the advantages of simple structure, variable dead point position, no crankshaft, no lateral force, low lubricating requirement, few parts, low manufacturing cost, light weight, low energy loss, wide working condition adaptation range and the like, and the main motions of the hydraulic internal combustion engine-linear power generation device are linear motions, so that the number of parts is greatly reduced, the friction loss caused by the rotation process is eliminated, and the energy loss of the device is reduced; the existing experiment proves that the mechanical energy transmitted by the internal combustion engine is stored and transmitted to the linear generator through the hydraulic system, the coupling efficiency can reach 60 percent at most, which is far higher than the efficiency of generating power by transmitting energy through mechanical components, and the research of the existing energy conversion machinery is mainly aimed at the direction of high power, so that the existing energy conversion machinery is generally heavy in structure, large in mechanical loss, low in efficiency, insufficient in energy utilization, narrow in application working condition range and the like, the development of the high-efficiency direction energy conversion machinery is neglected, and the reasonable use of limited resources is not facilitated.
Disclosure of Invention
The invention aims to provide a single-action hydraulic type internal combustion engine linear power generation device, and solves the problems that the crankshaft internal combustion engine power generation device in the prior art is low in conversion efficiency and narrow in application working condition range.
In order to achieve the above purpose, the invention provides the following technical scheme:
the basic technical scheme provided by the invention is as follows: a single-acting hydraulic internal combustion engine linear power generation device comprises an air inlet pipe, a gas supercharging mechanism, an exhaust pipe, an internal combustion engine, a counterweight mechanism, a linear power generator, a hydraulic plunger cylinder, a one-way valve, an electromagnetic valve, an energy accumulator, a manual pump, a pilot operated overflow valve and an oil cylinder, wherein the internal combustion engine comprises an internal combustion engine cylinder and a free piston, the air inlet pipe is connected with the gas supercharging mechanism and the internal combustion engine cylinder in a simultaneous pipe mode, the air inlet pipe is connected with an air inlet valve between the gas supercharging mechanism and the internal combustion engine cylinder in a pipe mode, the internal combustion engine cylinder is connected with a spark plug in a pipe mode, the internal combustion engine cylinder is further connected with an exhaust pipe in a pipe mode, the free piston moves along the axial direction of the internal combustion engine cylinder, the free end of the free piston is connected with, the linear generator is provided with a stator, the stator slides along a track of the linear generator, the hydraulic plunger cylinder is connected with the stator, the linear generator is arranged between the counterweight mechanism and the hydraulic plunger cylinder, the A end of the electromagnetic valve is connected with the output end of the one-way valve, the P end of the electromagnetic valve is connected with the input end of the one-way valve, the input end of the one-way valve is also connected with the energy accumulator and the pilot-operated overflow valve in a pipe mode, the free end of the pilot-operated overflow valve is connected with the oil cylinder in a pipe mode, and the manual pump is connected to two ends of the pilot-operated overflow valve in parallel.
The principle of the basic technical scheme is as follows: in an initial state, opening an air inlet valve and an electromagnetic valve, adjusting the pressure of a pilot type overflow valve to be zero, and releasing the pressure of the whole system; a cold machine starting stage: opening an air inlet valve, enabling air to enter an internal combustion engine cylinder from an air inlet pipe through an air pressurization mechanism, enabling a free piston to move towards one side far away from the internal combustion engine cylinder, then closing the air inlet valve and an electromagnetic valve, utilizing a manual pump to pressurize a hydraulic circuit, ensuring that the hydraulic circuit has certain initial pressure, enabling the pressure of an energy accumulator to be the same as the initial pressure of a system, opening the electromagnetic valve and an exhaust valve after adjustment is completed, pushing a plunger of a hydraulic plunger cylinder to move towards one side far away from the hydraulic plunger cylinder under the action of the initial hydraulic pressure of the system, pushing the free piston to move towards one side close to the internal combustion engine cylinder to the top dead center position by the plunger of the hydraulic plunger cylinder; an air inlet stage: the air inlet valve is opened, the exhaust valve and the electromagnetic valve are closed, hydraulic oil in a hydraulic system can only flow to an energy accumulator through a one-way valve or overflow into an oil tank through a pilot-operated overflow valve, fuel mixed gas enters an internal combustion engine cylinder after being pressurized through a gas pressurization mechanism from an air inlet pipe, the air valve is closed after a proper amount of fuel mixed gas is filled in the internal combustion engine cylinder, a spark plug ignites the fuel gas in the internal combustion engine cylinder, the fuel gas is exploded and expanded in the internal combustion engine cylinder, high-pressure gas pushes a free piston to move towards one side far away from the internal combustion engine cylinder, the free piston pushes a counterweight mechanism to move towards one side far away from the internal combustion engine cylinder, the counterweight mechanism pushes a plunger of the hydraulic plunger cylinder to move towards one side close to the bottom of the hydraulic plunger cylinder, in the process, a stator slides along a track of the linear generator, magnetic induction lines generated by the linear generator are, the hydraulic plunger cylinder converts mechanical energy into hydraulic energy to enable the pressure of a hydraulic system to rise, hydraulic oil flows into the energy accumulator through the one-way valve, partial energy is stored in the energy accumulator, the counterweight mechanism can also play a role in buffering in the process, and converts part of the energy into self kinetic energy to continuously push the plunger of the hydraulic plunger cylinder to move towards one side of the bottom of the hydraulic plunger cylinder, and the free piston is positioned at the bottom dead center position after fuel gas is fully expanded; and (3) an exhaust stage: the exhaust valve and the electromagnetic valve are opened, the hydraulic energy stored in the energy accumulator reversely pushes the plunger of the hydraulic plunger cylinder to move towards one side far away from the bottom of the hydraulic plunger cylinder, at the moment, the stator reversely slides along the track of the linear generator, the magnetic induction line generated by the linear generator is cut again to generate electricity, the plunger of the hydraulic plunger cylinder pushes the counterweight mechanism to move towards one side close to the cylinder of the internal combustion engine, the free piston is pushed to move towards one side close to the cylinder of the internal combustion engine, gas in the cylinder of the internal combustion engine is discharged from the exhaust pipe, and after the gas in the cylinder of the internal combustion engine is completely discharged, the gas inlet stage and the gas outlet stage are repeated again, so that the reciprocating is a periodic cycle.
The beneficial effects of the basic technical scheme are as follows: the power generation amount is adjusted by matching the relationship among fuel gas in a cylinder of the internal combustion engine, the stroke of a free piston and a hydraulic system, so that different requirements of various working conditions are met; in the air inlet stage, the thrust of the free piston to the counterweight mechanism is converted into the kinetic energy of the counterweight mechanism, after the fuel gas is completely combusted, the counterweight mechanism continues to push the hydraulic plunger cylinder to continuously move towards one side close to the bottom of the hydraulic plunger cylinder under the action of the kinetic energy of the fuel gas, the stator slides along the track of the linear generator, and the magnetic induction line generated by the linear generator is cut to generate electricity; the energy accumulator releases hydraulic oil in the exhaust stage, the hydraulic energy pushes the plunger of the hydraulic plunger cylinder to move to one side far away from the bottom of the hydraulic plunger cylinder, the stator slides reversely along the track of the linear generator, and the magnetic induction line generated by the linear generator is cut again to generate electricity, namely, the magnetic induction line can be cut to generate electricity in the intake stage and the exhaust stage, and the intake stage and the exhaust stage both greatly reduce the clearance volume loss caused by incomplete discharge of residual gas in the device, improve the conversion efficiency of the whole system, and solve the problems of low conversion efficiency and narrow working condition application range of the crankshaft internal combustion engine power generation device in the prior art; in addition, compared with a crankshaft type internal combustion engine, the internal combustion engine adopts a mode of being connected with a hydraulic system in series, the hydraulic system and a hydraulic spring have similar structural characteristics, the pressure in a cylinder of the internal combustion engine can be adjusted by increasing or decreasing a counterweight mechanism and adjusting the pressure of the hydraulic system, and the stroke of a free piston is reasonably configured to enable the free piston to completely return, so that the internal combustion engine does not have strict displacement of a lower dead point, or the lower dead point is controllable, and the internal combustion engine is convenient to use; the whole device has the advantages of small volume flow, large energy density, no crankshaft, simple structure, variable dead point position, no lateral force, good economy, convenient maintenance and good universality, operability and economy in practical use.
Preferably, the counterweight mechanism is removably connected to both the free piston and the hydraulic ram cylinder.
Through the setting, in the actual working condition, according to data such as temperature, pressure and displacement that entire system sensor gathered, real-time quality that changes counter weight mechanism is in order to realize optimizing to entire system's efficiency: firstly, the pulsatility of the whole system is improved, so that the system runs more stably; the inertia of the moving part of the system is changed by changing the mass of the counterweight mechanism, and the operation parameter feedback adjustment of the inertia of the system is beneficial to obtaining larger stroke of the free piston, so that the energy conversion efficiency of the whole system is further improved.
Preferably, the linear generator is connected in parallel with a plurality of linear generators through a synchronizing device.
Through the arrangement, the whole system is circulated in a reciprocating period, a plurality of power generation devices generate power, and the power generation amount is high.
Preferably, the intake valve and the exhaust valve are both pneumatic high-speed switches.
Through the arrangement, after the high-speed switch is set, the high-speed switch is automatically opened and closed quickly, the opening and closing time is accurate, the dynamic characteristic of the device is ensured, the efficiency of the whole system is improved, the dynamic characteristic of the system is favorable for accurately adjusting the conversion rate of the energy of the internal combustion engine, the intelligent design trend is met, and the wide popularization and application are facilitated.
Preferably, the internal combustion engine cylinder is further connected with a displacement sensor, the displacement sensor is used for detecting the position of the free piston, and the displacement sensor controls starting and stopping of the intake valve and the exhaust valve.
Through the arrangement, the displacement sensor captures the position of the free piston in the cylinder of the internal combustion engine, and the start and stop of the air inlet valve and the exhaust valve are accurately controlled according to the position of the free piston, so that the dynamic characteristic of the device is further ensured, and the efficiency of the whole system is improved.
Preferably, the electromagnetic valve is a direct-acting two-position two-way high-speed electromagnetic valve.
Through the arrangement, when the solenoid valve of the direct-acting two-position two-way solenoid valve is electrified, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve is opened; when the power is cut off, the electromagnetic force disappears, the spring presses the closing part on the valve seat, and the valve is closed. The device can work normally under vacuum, negative pressure and zero pressure, and has short response time and wide application range.
Drawings
FIG. 1 is a schematic diagram of a single-acting hydraulic internal combustion engine linear power generation device according to the present invention;
the names of corresponding labels in the drawings are:
the device comprises an air pipe 1, a gas pressurization mechanism 2, an air inlet valve 3, a spark plug 4, an exhaust pipe 5, an exhaust valve 6, an internal combustion engine cylinder 7, a free piston 8, a counterweight mechanism 9, a linear generator 10, a hydraulic plunger cylinder 11, a stator 12, a one-way valve 13, an electromagnetic valve 14, an energy accumulator 15, a manual pump 16, an oil cylinder 17, a pilot operated overflow valve 18 and a displacement sensor 19.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
as shown in fig. 1, a single-acting hydraulic internal combustion engine linear power generation device comprises an air inlet pipe 1, a gas pressurization mechanism 2, an air inlet valve 3, an exhaust pipe 5, an exhaust valve 6, an internal combustion engine, a counterweight mechanism 9, a linear generator 10, a hydraulic plunger cylinder 11, a one-way valve 13, an electromagnetic valve 14, an energy accumulator 15, a manual pump 16, a pilot operated overflow valve 18, a displacement sensor 19 and an oil cylinder 17, wherein the internal combustion engine comprises an internal combustion engine cylinder 7 and a free piston 8, the air inlet pipe 1 is connected with the upper left side of the internal combustion engine cylinder 7 in a pipe mode, the air inlet pipe 1 is connected with the gas pressurization mechanism 2 and the air inlet valve 3 in a pipe mode, the air inlet valve 3 is arranged between the internal combustion engine cylinder 7 and the air inlet valve 3, the exhaust pipe 5 is connected with the lower left side of the internal combustion engine cylinder 7 in a pipe, the free piston 8 moves along the axial direction of the internal combustion engine cylinder 7, the lower side of the internal combustion engine cylinder 7 is connected with a displacement sensor 19, the displacement sensor 19 is used for detecting the position of the free piston 8, the displacement sensor 19 controls the start and stop of the air inlet valve 3 and the air outlet valve 6, the right side of the free piston 8 is sleeved with the left side of the counterweight mechanism 9, the right side of the counterweight mechanism 9 is sleeved with the left side of the hydraulic plunger cylinder 11, the linear generator 10 is provided with a stator 12, the stator 12 slides along the track of the linear generator 10, the hydraulic plunger cylinder 11 is sleeved with the stator 12, the linear generator 10 is arranged between the counterweight mechanism 9 and the hydraulic plunger cylinder 11, the right side of the hydraulic plunger cylinder 11 is connected with a one-way valve pipe, the A end of the electromagnetic valve 14 is connected with the output end of the one-way valve 13, the P end of the electromagnetic valve 14 is connected with the input end of the one-way valve 13, the, the lower side of the pilot overflow valve 18 is connected with a pipe 17, and the manual pump 16 is connected with two ends of the pilot overflow valve 18 in parallel.
The specific implementation process is as follows:
before the device is used, the counterweight of the counterweight mechanism 9 is selected according to the actual working condition, the inertia of the moving part of the system is adjusted, so that the free piston 8 obtains larger stroke, the running stability of the system is ensured, and the energy conversion efficiency of the whole system is improved; then the air inlet valve 3 and the electromagnetic valve 14 are manually opened, the pressure of the pilot type overflow valve 18 is adjusted to be zero, and the pressure of the whole system is relieved; a cold machine starting stage: gas enters an internal combustion engine cylinder 7 from a gas inlet pipe 1 through a gas supercharging mechanism 2, so that a free piston 8 moves towards the right side, then an air inlet valve 3 and an electromagnetic valve 14 are closed, a manual pump 16 is used for pressurizing a hydraulic circuit, a certain initial pressure is ensured in the hydraulic circuit, the pressure of an energy accumulator 15 is the same as the initial pressure of a system, the electromagnetic valve 14 and an exhaust valve 6 are opened after adjustment is completed, a plunger of a hydraulic plunger cylinder 11 is pushed to move towards the left side under the action of the initial hydraulic pressure of the system, the plunger of the hydraulic plunger cylinder 11 pushes the free piston 8 to move towards the left side to the top dead center position, and residual gas in the internal combustion engine cylinder 7 is; setting the response time and start-stop time of the displacement sensor 19, the air inlet valve 3 and the exhaust valve 6, which are adapted to the working condition, so as to ensure the dynamic characteristic of the device and the efficiency of the whole system; an air inlet stage: the displacement sensor 19 controls the opening of the air inlet valve 3, the closing of the air outlet valve 6 and the electromagnetic valve 14 according to the position of the free piston 8, hydraulic oil in a hydraulic system can only flow to the energy accumulator 15 through the one-way valve 13 or overflow into the oil tank through the pilot-operated overflow valve 18, fuel mixed gas enters the internal combustion engine cylinder 7 after being pressurized by the gas pressurization mechanism 2 from the air inlet pipe 1, the air inlet valve 3 is closed after the internal combustion engine cylinder 7 is filled with a proper amount of fuel mixed gas, the spark plug 4 ignites the fuel gas in the internal combustion engine cylinder 7, the fuel gas is exploded and expanded in the internal combustion engine cylinder 7, the free piston 8 is pushed by high-pressure gas to move to the right side, the free piston 8 pushes the counterweight mechanism 9 to move to the right side, the counterweight mechanism 9 pushes the plunger of the hydraulic plunger cylinder 11 to move to the right side, in the process, the stator 12 slides to the right along the, the plunger of the hydraulic plunger cylinder 11 extrudes the liquid oil in the hydraulic plunger cylinder 11, the hydraulic plunger cylinder 11 converts mechanical energy into hydraulic energy to enable the pressure of a hydraulic system to rise, hydraulic oil flows into the energy accumulator 15 through the one-way valve, partial energy is stored in the energy accumulator 15, the counterweight mechanism 9 can also play a role in buffering in the process, and converts partial energy into self kinetic energy to continuously push the plunger of the hydraulic plunger cylinder 11 to move to the right side, and the free piston 8 is positioned at the bottom dead center after the fuel gas is completely expanded; and (3) an exhaust stage: the displacement sensor 19 controls the exhaust valve 6 and the electromagnetic valve 14 to be opened again according to the position of the free piston 8, the hydraulic energy stored in the energy accumulator 15 reversely pushes the plunger of the hydraulic plunger cylinder 11 to move to the left, at the moment, the stator 12 slides to the left along the track of the linear generator 10, magnetic induction lines generated by the linear generator 10 are cut again to generate electricity, the plunger of the hydraulic plunger cylinder 11 pushes the counterweight mechanism 9 to move to the left and pushes the free piston 8 to move to the left, gas in the internal combustion engine cylinder 7 is discharged from the exhaust pipe 5, after the gas in the internal combustion engine cylinder 7 is completely discharged, the gas inlet stage and the gas outlet stage are repeated again, the reciprocating is a periodic cycle, and the stator 12 slides and cuts the magnetic induction lines generated by the linear generator 10 along the track of the linear generator 10 to realize continuous electricity generation.
The above description is only an example of the present invention, and the common general knowledge of the technical solutions or characteristics known in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A single-acting hydraulic internal combustion engine linear power generation device is characterized in that: including intake pipe (1), gaseous booster mechanism (2), blast pipe (5), internal-combustion engine, counter weight mechanism (9), linear generator (10), hydraulic pressure plunger cylinder (11), check valve (13), solenoid valve (14), energy storage ware (15), manual pump (16), guide's formula overflow valve (18) and hydro-cylinder (17), the internal-combustion engine includes internal-combustion engine cylinder (7) and free piston (8), intake pipe (1) simultaneously with gaseous booster mechanism (2) with internal-combustion engine cylinder (7) pipe connector, intake pipe (1) be in gaseous booster mechanism (2) with pipe connector has admission valve (3) between internal-combustion engine cylinder (7), internal-combustion engine cylinder (7) are connected with spark plug (4), internal-combustion engine cylinder (7) still pipe connector has blast pipe (5), blast pipe (5) pipe connector has discharge valve (6), the free piston (8) moves along the axial direction of the internal combustion engine cylinder (7), the free end of the free piston (8) is connected with one end of the counterweight mechanism (9), the other end of the counterweight mechanism (9) is connected with the hydraulic plunger cylinder (11), the linear generator (10) is provided with a stator (12), the stator (12) slides along the track of the linear generator (10), the hydraulic plunger cylinder (11) is connected with the stator (12), the linear generator (10) is arranged between the counterweight mechanism (9) and the hydraulic plunger cylinder (11), the A end of the electromagnetic valve (14) is connected with the output end of the one-way valve (13), the P end of the electromagnetic valve (14) is connected with the input end of the one-way valve (13), and the input end of the one-way valve (13) is simultaneously connected with the energy accumulator (15) and the pilot operated overflow valve (18), the free end of the pilot overflow valve (18) is connected with the oil cylinder (17) in a pipe mode, and the manual pump (16) is connected to the two ends of the pilot overflow valve (18) in parallel.
2. A single-acting hydraulic internal combustion engine linear power plant according to claim 1, characterized in that: the counterweight mechanism (9) is detachably connected with the free piston (8) and the hydraulic plunger cylinder (11).
3. A single-acting hydraulic internal combustion engine linear power plant according to claim 1, characterized in that: the linear generator (10) is connected with a plurality of linear generators (10) in parallel through a synchronous device.
4. A single-acting hydraulic internal combustion engine linear power plant according to claim 1, characterized in that: and the air inlet valve (3) and the exhaust valve (6) are both pneumatic high-speed switches.
5. The single-acting hydraulic internal combustion engine linear power generation device according to claim 4, wherein: the internal combustion engine cylinder (7) is further connected with a displacement sensor (19), the displacement sensor (19) is used for detecting the position of the free piston (8), and the displacement sensor (19) controls the starting and stopping of the air inlet valve (3) and the exhaust valve (3).
6. A single-acting hydraulic internal combustion engine linear power plant according to claim 1, characterized in that: the electromagnetic valve (14) is a direct-acting two-position two-way high-speed electromagnetic valve.
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| CN202110038688.2A CN112879154B (en) | 2021-01-12 | 2021-01-12 | Single-acting hydraulic type internal combustion engine linear power generation device |
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| KR20130002387A (en) * | 2011-06-29 | 2013-01-08 | 이형국 | Small and light linear generator system having two cycle free-piston engine |
| CN104912660A (en) * | 2015-04-17 | 2015-09-16 | 华侨大学 | Two-cylinder four-stroke hydraulic free piston engine based on electric control compression stroke |
| US20160056689A1 (en) * | 2013-01-23 | 2016-02-25 | Hyeon Cheol Moon | Electric power generator using vehicle |
| CN109653869A (en) * | 2019-01-25 | 2019-04-19 | 南京理工大学 | A kind of two-stroke free-piston electricity generation system and its electricity-generating method |
| CN109779747A (en) * | 2019-01-17 | 2019-05-21 | 上海交通大学 | Free piston IC power generator |
| CN212202242U (en) * | 2020-03-06 | 2020-12-22 | 山西成功汽车制造有限公司 | Free piston type linear power generation device |
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2021
- 2021-01-12 CN CN202110038688.2A patent/CN112879154B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130002387A (en) * | 2011-06-29 | 2013-01-08 | 이형국 | Small and light linear generator system having two cycle free-piston engine |
| US20160056689A1 (en) * | 2013-01-23 | 2016-02-25 | Hyeon Cheol Moon | Electric power generator using vehicle |
| CN104912660A (en) * | 2015-04-17 | 2015-09-16 | 华侨大学 | Two-cylinder four-stroke hydraulic free piston engine based on electric control compression stroke |
| CN109779747A (en) * | 2019-01-17 | 2019-05-21 | 上海交通大学 | Free piston IC power generator |
| CN109653869A (en) * | 2019-01-25 | 2019-04-19 | 南京理工大学 | A kind of two-stroke free-piston electricity generation system and its electricity-generating method |
| CN212202242U (en) * | 2020-03-06 | 2020-12-22 | 山西成功汽车制造有限公司 | Free piston type linear power generation device |
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| CN112879154B (en) | 2022-05-17 |
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