CN111852649A - Two-stroke Atkinson cycle free piston internal combustion generator - Google Patents
Two-stroke Atkinson cycle free piston internal combustion generator Download PDFInfo
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- CN111852649A CN111852649A CN202010749975.XA CN202010749975A CN111852649A CN 111852649 A CN111852649 A CN 111852649A CN 202010749975 A CN202010749975 A CN 202010749975A CN 111852649 A CN111852649 A CN 111852649A
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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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/24—Pistons having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
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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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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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 relates to a two-stroke Atkinson cycle free piston internal combustion generator, and belongs to the field of energy power. The method mainly comprises the following steps: free piston engine, linear generator, connecting rod. The piston is provided with a plurality of air inlet channels, each air inlet channel is provided with an air inlet valve, and an air inlet valve spring and air inlet valve damping are arranged between the air inlet valve and the piston. The opening and closing time of the intake valve is optimized by adjusting the spring elasticity of the intake valve and the damping coefficient of the intake valve, the Atkinson cycle is realized on a two-stroke free piston engine, and the thermal efficiency is improved.
Description
Technical Field
The invention relates to an energy power engineering mechanical device, in particular to a two-stroke Atkinson cycle free piston internal combustion generator, and belongs to the field of energy power.
Background
In recent years, efforts have been made to find a high energy conversion efficiency internal combustion power generation device, in which a free piston internal combustion generator is a new energy conversion device formed by coupling a free piston engine and a linear generator, and the free piston is directly and fixedly connected with a secondary stage of the linear generator to form a unique moving component, namely a piston assembly. When the system operates, the gas in the cylinder is combusted and expanded to do work, the piston is pushed and the rotor is driven to move, electric energy is generated, and finally the chemical energy of the fuel is directly converted into the electric energy through a short transmission path. The novel energy-saving device has a plurality of potential performance advantages, such as less mechanical friction loss, compact structure, small volume, short energy transmission path and the like. The existing free piston generator generally adopts a two-stroke internal combustion engine, air intake and exhaust adopt a scavenging port air exchange mode similar to two strokes, and the air exchange effect is poor. In addition, because the acceleration of the piston of the free piston engine is high at the top dead center, the isochoricity in the combustion heat release process is low, the after-combustion is serious, and the indicated thermal efficiency is lower than that of a crankshaft engine.
The Atkinson cycle delays the compression starting moment through late closing of the inlet valve, so that the expansion stroke is larger than the compression stroke, and the long expansion stroke can fully utilize the expansion work of combustion gas, reduce the energy taken away by waste gas and further obtain higher thermal efficiency. If the Atkinson cycle is introduced into the free piston engine, the characteristic of high thermal efficiency is fully exerted, and a very good oil saving effect can be achieved. Free piston engines typically employ a two-stroke working cycle. For a traditional two-stroke engine, the position of a scavenging port is fixed, and an Atkinson cycle cannot be realized. If the intake and exhaust valves are arranged on the cylinder cover of the two-stroke engine at the same time, effective air exchange cannot be guaranteed, and an intake supercharging device needs to be arranged independently.
The invention realizes Atkinson working circulation on a two-stroke free piston engine by utilizing the structural characteristics of the free piston engine without a crank case and combining the special motion rule of the free piston, and has important significance for further improving the circulating thermal efficiency of the free piston engine.
Disclosure of Invention
The invention aims to further improve the cycle thermal efficiency of a two-stroke free piston engine, and provides a two-stroke Atkinson cycle free piston internal combustion engine generator.
The purpose of the invention is realized by the following technical scheme.
The invention relates to a two-stroke Atkinson cycle free piston internal combustion generator, which mainly comprises: free piston engine, linear generator, connecting rod.
The free piston engine includes: the system comprises an exhaust valve controller, an oil sprayer, an exhaust valve, an intake valve, a cylinder, a piston, a one-way intake valve, an intake valve spring and an intake valve damper;
the linear generator includes: a generator secondary, a generator primary;
the piston is provided with a plurality of air inlet channels.
Connection relation:
the fuel injector is arranged at the center of the top of the cylinder, a plurality of exhaust passages are formed around the fuel injector, the exhaust valve is installed on the exhaust passages, the piston is installed inside the cylinder, and the piston is guaranteed to be always inside the cylinder during working. The piston lateral surface forms a sealing engagement with the cylinder inner side surface by means of a piston ring. The space enclosed by the inner side surface of the cylinder and the top surface of the piston is a combustion chamber.
The space enclosed by the inner side surface of the cylinder and the back surface of the piston is a pressure air chamber; the air inlet has been seted up to the cylinder, installs one-way admission valve in the air inlet, and the air inlet exposes in the plenum chamber all the time in the stroke range. A through hole is formed in the center of the bottom of the air cylinder, and the connecting rod penetrates through the through hole and is coaxial with the air cylinder.
A generator secondary is arranged in the generator primary, and the generator primary and the generator secondary can move relatively in the axial direction; the pistons at two sides are rigidly connected with the secondary stage of the generator through a connecting rod to form a piston assembly which can axially reciprocate; the primary of the generator is fixed relative to the cylinder.
The piston is provided with a plurality of air inlet channels, each air inlet channel is provided with an air inlet valve, and an air inlet valve spring and air inlet valve damping are arranged between the air inlet valve and the piston. The opening and closing of the intake valve are controlled by the combustion chamber pressure, the pressure of the pressure chamber, the intake valve spring force, and the intake valve damping force.
The opening time of the intake valve can be changed by adjusting the spring elasticity of the intake valve, and the larger the spring elasticity of the intake valve is, the later the opening time of the intake valve is. The closing time of the intake valve can be changed by adjusting the damping coefficient of the intake valve, the larger the damping coefficient of the intake valve is, the larger the damping force which needs to be overcome when the spring of the intake valve drives the intake valve to close is, and the later the closing time of the intake valve is.
The working process is as follows:
for the left free piston engine part, when the piston assembly moves from left to right, the piston of the left free piston engine moves from top dead center to bottom dead center (as the free piston engine has no determined dead center, the dead center refers to a theoretical dead center, and the dead centers referred to below refer to theoretical dead center positions), the fuel injector injects high-pressure fuel into the combustion chamber near the top dead center, the explosion pressure generated by the combustion of the mixed gas in the combustion chamber pushes the piston to move rightwards, the volume of the combustion chamber in the cylinder is continuously increased, the volume of the air compression chamber is continuously reduced, at the moment, the one-way air inlet valve is in a closed state, the gas in the air compression chamber is compressed, and the pressure is. After work is done, the exhaust valve controller controls the exhaust valve to open, the waste gas in the combustion chamber is discharged, and the pressure in the cylinder is rapidly reduced. At the moment, the air inlet valve keeps a closed state under the action of the elastic force of the air inlet valve spring, the air inlet valve and the piston do not move relatively, and the air inlet valve damping force is 0. After that, the piston continues to move rightwards under the action of the inertia force of the piston assembly, and when the gas pressure in the gas compressing chamber subtracts the gas pressure in the combustion chamber and can overcome the elastic force of the spring of the inlet valve, the inlet valve is opened. The high-pressure gas in the gas compression chamber rushes into the combustion chamber to start gas exchange. The opening time of the intake valve can be changed by adjusting the spring elasticity of the intake valve, and the larger the spring elasticity of the intake valve is, the later the opening time of the intake valve is.
After the piston of the left free piston engine reaches the bottom dead center, the piston assembly moves from the right side to the left side under the action of explosion pressure in a combustion chamber of the right free piston engine (because the free piston engine has no crank-connecting rod mechanism, the motion rule of the piston is not limited by machinery, under the action of the explosion pressure in the cylinder, the speed is higher when the piston is far away from the dead center in the early stage of each stroke, and the speed is lower when the piston is close to the dead center in the later stage of each stroke), at the moment, the speed of the piston assembly rapidly rises, the piston and the intake valve move at a relatively high speed, and because of the existence of the damping of the intake valve, under the action of. And the damping force of the inlet valve is rapidly reduced along with the reduction of the relative speed of the piston and the inlet valve, and the inlet valve is closed under the action of the inlet valve spring when the damping force is smaller than the elastic force of the inlet valve spring. The closing time of the intake valve can be changed by adjusting the damping coefficient of the intake valve, the larger the damping coefficient of the intake valve is, the larger the damping force which needs to be overcome when the spring of the intake valve drives the intake valve to close is, and the later the closing time of the intake valve is. The exhaust valve is then closed under control of the exhaust valve controller and the scavenging process is ended. The speed of the piston passing through the bottom dead center in the air exchange process of the left free piston engine is obviously higher than that before the bottom dead center, and the damping force of the damping of the intake valve after the bottom dead center is obviously larger than that before the bottom dead center, so that the closing position of the intake valve is closer to the top dead center relative to the opening position, and the Atkinson working circulation is realized.
In the process that the piston of the left free piston engine moves from the lower dead center to the upper dead center, because the volume of the air compression chamber is continuously increased, when the gas pressure of the air compression chamber is lower than the atmospheric pressure, the one-way air inlet valve is opened, and fresh air is sucked into the air compression chamber. When the piston reaches the top dead center, enough fresh air is stored in the air compression chamber. The left free piston engine ends one cycle of operation.
The right free piston engine and the left free piston engine work in the same process (the top dead center of the left free piston engine corresponds to the bottom dead center of the right free piston engine).
When the system works, the free piston engines on the left side and the right side alternately explode, the explosion pressure pushes the piston assembly to axially reciprocate, the secondary side of the generator and the primary side of the fixed generator move relatively to cut the magnetic induction lines in the linear generator, and electric energy is output.
Advantageous effects
1. According to the two-stroke Atkinson cycle free piston internal combustion engine generator, the air inlet channel is formed in the piston, so that linear air exchange is realized, air inlet is more sufficient, and the air exchange efficiency of the two-stroke free piston engine is improved.
2. According to the two-stroke Atkinson cycle free piston internal combustion engine generator, the closing position of the air inlet valve is closer to the top dead center relative to the opening position in the air exchange process, so that the Atkinson cycle is realized on the two-stroke free piston engine, and the heat efficiency is improved.
3. According to the two-stroke Atkinson cycle free piston internal combustion engine generator, the air inlet channel is arranged on the piston inside the cylinder, so that the external space of the cylinder is not occupied, the structure is more compact, and the unit volume power of the whole power device is improved.
4. The two-stroke Atkinson cycle free piston internal combustion engine generator has the advantages that key components such as the intake valve, the intake valve spring, the intake valve damping and the like are convenient to manufacture and process, the manufacturing cost is low, and the standardization and the commercialization are convenient to realize.
Drawings
FIG. 1 is a cross-sectional view of a two-stroke Atkinson cycle free piston internal combustion engine of the present invention;
the system comprises an exhaust valve controller 1, an exhaust valve controller 2, an oil injector 3, an exhaust valve 4, an intake valve 5, a cylinder 6, a piston 7, a one-way intake valve 8, a connecting rod 9, a generator secondary 10, a generator primary 11, an intake valve spring 12 and an intake valve damper 12.
Detailed Description
The invention is further described with reference to the following figures and examples.
Example 1
The invention relates to a two-stroke Atkinson cycle free piston internal combustion generator, which mainly comprises: free piston engine, linear generator, connecting rod 8.
The free piston engine includes: the device comprises an exhaust valve controller 1, an oil injector 2, an exhaust valve 3, an intake valve 4, a cylinder 5, a piston 6, a one-way intake valve 7, an intake valve spring 11 and an intake valve damper 12;
the linear generator includes: a generator secondary 9, a generator primary 10;
the piston 6 is provided with a plurality of air inlet channels;
connection relation:
the fuel injector 2 is arranged in the center of the top of the cylinder 5, a plurality of exhaust passages are formed in the periphery of the fuel injector, the exhaust valve 3 is installed on the exhaust passages, the piston 6 is installed inside the cylinder 5, and the piston 6 is guaranteed to be always located inside the cylinder 5 during working. The lateral surface of the piston 6 forms a sealing engagement with the inner side surface of the cylinder 5 by means of piston rings. The space enclosed by the inner side surface of the cylinder 5 and the top surface of the piston 6 is a combustion chamber.
The space enclosed by the inner side surface of the cylinder 5 and the back surface of the piston 6 is a pressure air chamber; the air cylinder 4 is provided with an air inlet, a one-way air inlet valve 7 is installed in the air inlet, and the air inlet is always exposed in the air compression chamber within the stroke range. A through hole is formed in the center of the bottom of the air cylinder 5, and the connecting rod 8 penetrates through the through hole and is coaxial with the air cylinder.
A generator secondary 9 is arranged in the generator primary 10, and the generator primary 10 and the generator secondary 9 can move relatively in the axial direction; the pistons 6 on the two sides and the secondary 9 of the generator are rigidly connected together through a connecting rod 8 to form a piston assembly which can axially reciprocate; the generator primary 10 is fixed relative to the cylinder 5.
The piston 6 is provided with a plurality of air inlet channels, each air inlet channel is provided with an air inlet valve 4, and an air inlet valve spring 11 and an air inlet valve damper 12 are arranged between the air inlet valve 4 and the piston 6. The opening and closing of the intake valve 4 is controlled by the combustion chamber pressure, the pressure of the surge tank, the intake valve spring 11 elastic force, and the intake valve damper 12 damping force.
The opening timing of the intake valve 4 can be changed by adjusting the elastic force of the intake valve spring 12, and the larger the elastic force of the intake valve spring 12, the later the opening timing of the intake valve 4. The closing time of the air inlet valve 4 can be changed by adjusting the damping coefficient of the air inlet valve damping 12, the larger the damping coefficient of the air inlet valve damping 12 is, the larger the damping force which needs to be overcome when the air inlet valve spring 11 drives the air inlet valve 4 to close is, and the later the closing time of the air inlet valve 4 is.
The working process is as follows:
for the left free piston engine part, when the piston assembly moves from left to right, the piston 6 of the left free piston engine moves from top dead center to bottom dead center (as the free piston engine has no determined dead center, the dead center refers to a theoretical dead center, and the dead centers referred to below refer to theoretical dead center positions), the fuel injector 2 injects high-pressure fuel into the combustion chamber near the top dead center, the explosion pressure generated by the combustion of the mixed gas in the combustion chamber pushes the piston 6 to move rightwards, the volume of the combustion chamber in the cylinder continuously increases, the volume of the air compression chamber continuously decreases, at the moment, the one-way air inlet valve 7 is in a closed state, the gas in the air compression chamber is compressed, and the pressure increases. After the work is done, the exhaust valve controller 1 controls the exhaust valve 3 to open, the waste gas in the combustion chamber is discharged, and the pressure in the cylinder is rapidly reduced. At this time, the intake valve is kept in a closed state by the elastic force of the intake valve spring 11, the intake valve 4 and the piston 6 do not move relatively, and the intake valve damping force 12 is 0. Thereafter, the piston 6 continues to move rightward by the inertial force of the piston assembly, and the intake valve 4 opens when the gas pressure in the puffer chamber minus the gas pressure in the combustion chamber can overcome the elastic force of the intake valve spring 11. The high-pressure gas in the gas compression chamber rushes into the combustion chamber to start gas exchange. The opening timing of the intake valve 4 can be changed by adjusting the elastic force of the intake valve spring 11, and the larger the elastic force of the intake valve spring 11, the later the opening timing of the intake valve 4.
After the piston 6 of the left free piston engine reaches the bottom dead center, the piston assembly moves from the right side to the left side under the action of explosion pressure in a combustion chamber of the right free piston engine (because the free piston engine eliminates a crank-link mechanism, the motion rule of the piston is not limited by machinery, under the action of the explosion pressure in the cylinder, the speed is higher when the piston is far away from the dead center in the early stage of each stroke, and the speed is lower when the piston is close to the dead center in the later stage of each stroke), at the moment, the speed of the piston assembly rapidly rises, the piston 6 and the intake valve 4 relatively move at high speed, and because of the existence of the intake valve damping 12, under the action of large damping force caused by. When the damping force of the intake valve damper 12 rapidly decreases to be smaller than the elastic force of the intake valve spring 11 as the relative speed of the piston 6 and the intake valve 4 decreases, the intake valve 4 is closed by the intake valve spring 11. The closing time of the air inlet valve 4 can be changed by adjusting the damping coefficient of the air inlet valve damping 12, the larger the damping coefficient of the air inlet valve damping 12 is, the larger the damping force which needs to be overcome when the air inlet valve spring 11 drives the air inlet valve 4 to close is, and the later the closing time of the air inlet valve 4 is. The exhaust valve 3 is then closed under the control of the exhaust valve controller 1 and the scavenging process is ended. The speed of the piston passing through the bottom dead center in the air exchange process of the left free piston engine is obviously higher than that before the bottom dead center, and the damping force of the inlet valve damping 12 after the bottom dead center is obviously larger than that before the bottom dead center, so that the closing position of the inlet valve 4 is closer to the top dead center relative to the opening position, and the Atkinson working circulation is realized.
In the process that the piston 6 of the left free piston engine moves from the lower dead center to the upper dead center, because the volume of the air compression chamber is continuously increased, when the air pressure of the air compression chamber is lower than the atmospheric pressure, the one-way air inlet valve 7 is opened, and fresh air is sucked into the air compression chamber. When the piston 6 reaches the upper dead point, sufficient fresh air is already stored in the pneumatic chamber. The left free piston engine ends one cycle of operation.
The right free piston engine and the left free piston engine work in the same process (the top dead center of the left free piston engine corresponds to the bottom dead center of the right free piston engine).
When the system works, the free piston engines on the left side and the right side alternately explode, the explosion pressure pushes the piston assembly to axially reciprocate, the secondary 9 of the generator and the primary 10 of the fixed generator move relatively to cut the magnetic induction lines in the linear generator, and electric energy is output.
Claims (3)
1. A two-stroke Atkinson cycle free piston internal combustion engine generator, mainly comprising: a free piston engine, a linear generator, a connecting rod (8);
the free piston engine includes: the device comprises an exhaust valve controller (1), an oil injector (2), an exhaust valve (3), an intake valve (4), a cylinder (5), a piston (6), a one-way intake valve (7), an intake valve spring (11) and an intake valve damper (12);
the linear generator includes: a generator secondary (9), a generator primary (10);
the piston (6) is provided with a plurality of air inlet channels;
the fuel injector (2) is arranged at the center of the top of the cylinder (5), a plurality of exhaust passages are formed around the fuel injector, the exhaust valve (3) is installed on the exhaust passages, the piston (6) is installed inside the cylinder (5), and the piston (6) is guaranteed to be always inside the cylinder (5) during operation. The lateral surface of the piston (6) and the inner side surface of the cylinder (5) form a sealing fit through a piston ring. The space enclosed by the inner side surface of the cylinder (5) and the top surface of the piston (6) is a combustion chamber.
The space enclosed by the inner side surface of the cylinder (5) and the back surface of the piston (6) is a pressure air chamber; an air inlet is formed in the air cylinder (4), a one-way air inlet valve (7) is installed in the air inlet, and the air inlet is always exposed in the air compression chamber within the stroke range. A through hole is formed in the center of the bottom of the air cylinder (5), and the connecting rod (8) penetrates through the through hole and is coaxial with the air cylinder.
A generator secondary (9) is arranged in the generator primary (10), and the generator primary (10) and the generator secondary (9) can move relatively in the axial direction; the pistons (6) at the two sides and the secondary stage (9) of the generator are rigidly connected together through a connecting rod (8) to form a piston assembly which can axially reciprocate; the primary (10) of the generator is fixed relative to the cylinder (5).
2. A two-stroke atkinson cycle free piston internal combustion engine generator as claimed in claim 1 wherein: a plurality of air inlet channels are formed in the piston (6), an air inlet valve (4) is installed on each air inlet channel, and an air inlet valve spring (11) and an air inlet valve damper (12) are installed between each air inlet valve (4) and the piston (6). The opening and closing of the intake valve (4) is controlled by the combustion chamber pressure, the pressure of the surge tank, the intake valve spring (11) spring force, and the intake valve damper (12) damper force.
3. A two-stroke atkinson cycle free piston internal combustion engine generator as claimed in claim 1 or 2, wherein the opening timing of the intake valve (4) is varied by adjusting the spring force of the intake valve spring (11), the greater the spring force of the intake valve spring (11), the later the opening timing of the intake valve (4). The closing time of the intake valve (4) can be changed by adjusting the damping coefficient of the intake valve damping (12), the larger the damping coefficient of the intake valve damping (12) is, the larger the damping force which needs to be overcome when the intake valve spring (11) drives the intake valve (4) to close is, and the later the closing time of the intake valve (4) is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749975.XA CN111852649A (en) | 2020-07-30 | 2020-07-30 | Two-stroke Atkinson cycle free piston internal combustion generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010749975.XA CN111852649A (en) | 2020-07-30 | 2020-07-30 | Two-stroke Atkinson cycle free piston internal combustion generator |
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| CN111852649A true CN111852649A (en) | 2020-10-30 |
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| CN202010749975.XA Pending CN111852649A (en) | 2020-07-30 | 2020-07-30 | Two-stroke Atkinson cycle free piston internal combustion generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN102052149A (en) * | 2011-01-11 | 2011-05-11 | 北京理工大学 | Passive air-inlet mode diesel linear electromagnetic energy conversion device |
| CN103758637A (en) * | 2013-12-21 | 2014-04-30 | 北京理工大学 | Self-balancing high-speed free piston generator |
| CN111365121A (en) * | 2019-12-31 | 2020-07-03 | 钱裕智 | Linear range-extending generator driven by pre-supercharging exhaust-gas-changing free piston engine |
| CN111379644A (en) * | 2020-03-25 | 2020-07-07 | 王芳华 | Novel piston assembly for engine and novel engine |
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2020
- 2020-07-30 CN CN202010749975.XA patent/CN111852649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090308345A1 (en) * | 2006-04-27 | 2009-12-17 | Stichting Administratiekantoor Brinks Westmaas | Energy Converter Having Pistons with Internal Gas Passages |
| CN102052149A (en) * | 2011-01-11 | 2011-05-11 | 北京理工大学 | Passive air-inlet mode diesel linear electromagnetic energy conversion device |
| CN103758637A (en) * | 2013-12-21 | 2014-04-30 | 北京理工大学 | Self-balancing high-speed free piston generator |
| CN111365121A (en) * | 2019-12-31 | 2020-07-03 | 钱裕智 | Linear range-extending generator driven by pre-supercharging exhaust-gas-changing free piston engine |
| CN111379644A (en) * | 2020-03-25 | 2020-07-07 | 王芳华 | Novel piston assembly for engine and novel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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: 20201030 |