CN111336009B - A compression explosion internal combustion high-pair transmission power generation mechanism - Google Patents

Abstract

The present invention relates to a compression explosion internal combustion high-pair transmission power generation mechanism, including a cylinder body, a piston body and an output shaft, wherein the output shaft is connected to a generator, wherein: cylinder heads are respectively arranged at both ends of the cylinder body, and cylinders are formed between the two ends of the piston body and the corresponding cylinder heads; and exhaust holes penetrating the corresponding cylinders are arranged on the cylinder bodies at both ends, and intake valves and pump-injection nozzles are arranged on the cylinder heads; a piston rack is arranged in the middle section of the piston body, and the output shaft is arranged corresponding to the piston rack, and an output gear meshing with the piston rack is arranged on the output shaft; a limiting device is arranged between the generator rotor on the generator and the cylinder body. The present invention has a simple structure, low manufacturing and maintenance costs, adopts the "compression explosion" combustion method to fully burn the mixed gas, improves fuel economy, has low exhaust pollution, and the power generation output is suitable for powering various automobiles, robots and other mechanical power supplies that require independent power sources.

Description

A compression explosion internal combustion high-pair transmission power generation mechanism

Technical Field

The invention relates to the field of internal combustion generators, in particular to a compression explosion internal combustion high-pair transmission generator mechanism.

Background Art

Most existing internal combustion engines use a crank-connecting rod mechanism to convert the gas pressure on the top of the piston, i.e. the reciprocating motion, into a rotational torque output. The crank-connecting rod mechanism has the disadvantages of complex structure and low fuel efficiency. With the development of science and technology, some of the shortcomings of the engine, such as high fuel consumption and serious exhaust pollution, are being continuously improved, while the engine's crankshaft and connecting rod mechanism restrict the engine's effective fuel utilization rate.

CN103573406A discloses a dual-cylinder opposed free-piston internal combustion generator, which simultaneously explodes in the cylinders of the two free-piston internal combustion engines on the left side, pushing the two piston assemblies to move to the right. The rack connecting rod in the piston assembly drives the reversing gear to rotate, so that the generator mover meshing with the reversing gear moves to the left, cuts the magnetic flux lines, and generates electrical energy output. Until the two piston assemblies reach the top dead center of the right cylinder, the explosion pressure is generated in the two cylinders on the right at the same time, and enters the next cycle. The generator adopts a structural form in which two groups of free-piston internal combustion engines are connected in parallel with a linear generator, and the reversing gear realizes the synchronous reverse movement of the piston assembly and the generator mover, so that the inertia force of all piston assemblies is balanced with the inertia force of the generator mover, solving the vibration problem of the system. The generator adopts dual-cylinder opposition, and the rack on the connecting rod drives the reversing wheel, and then drives the generator mover, the purpose of which is to make the piston and the generator mover in opposite directions to solve the vibration problem. The problems existing in this scheme are: the linear generator has a short working stroke and low output efficiency. The free piston cannot be controlled in the cylinder, which can easily cause the engine to shut down and start up. In addition, the generator mainly solves the axial vibration problem of the moving parts by adopting a two-piston assembly structure, so the overall structure is large and there is also the problem of exhaust pollution caused by incomplete combustion.

Summary of the invention

The purpose of the present invention is to improve and innovate the shortcomings and problems existing in the background technology and to provide a compression explosion internal combustion high-pair transmission power generation mechanism.

The technical solution of the present invention is to construct a power generation mechanism including a cylinder body, a piston body arranged in the cylinder, and an output shaft connected to the piston body and transmitting kinetic energy, wherein the output shaft is connected to a generator, wherein: cylinder heads are respectively arranged at both ends of the cylinder body, and cylinders are formed between the two ends of the piston body and the corresponding cylinder heads; and exhaust holes penetrating the corresponding cylinders are arranged on the cylinder bodies at both ends, and intake valves and pump-injection nozzles are arranged on the cylinder heads; a piston rack is arranged in the middle section of the piston body, the output shaft is arranged corresponding to the piston rack, and an output gear meshing with the piston rack is arranged on the output shaft; a limiting device is arranged between the generator rotor on the generator and the cylinder body.

Preferably, the limiting device is an electromagnet, and one or two sets of the limiting devices are correspondingly arranged between the generator rotor and the cylinder body. The electromagnet limiting structure can adjust the magnetic force according to actual needs, thereby controlling the pause time of the piston body and prolonging the combustion time of the gas in the cylinder to achieve the required explosion force. The number of setting limit devices can be determined according to the size of the piston rack and the output gear, as well as the stroke length of the transmission piston body, so as to meet the needs of different powers and strokes.

Preferably, the exhaust hole is arranged on the cylinder body before the piston body starts to compress the gas in the cylinder, and the outer wall of the piston body is in contact and sealed with the bottom surface of the exhaust hole. The exhaust hole is arranged to complete exhaust and intake before the cylinder compresses the gas, and the piston body passing after the compression starts seals the exhaust hole so that the cylinder forms a sealed compression space.

Preferably, the cylinder body, piston body and cylinder head are arranged in one or two groups to form a two-cylinder structure or a four-cylinder structure, and the output shaft is arranged between the piston bodies in the upper and lower cylinder bodies, and is meshed with the upper and lower piston body rack gears for transmission. One group design can form a two-cylinder two-stroke engine structure, two groups design can form a two-stroke engine by controlling the work, and a four-cylinder four-stroke engine structure to meet different power generation needs.

Furthermore, the cylinder head of the four-cylinder structure is also provided with an exhaust valve, which can be converted into a power generation structure with different strokes by controlling the exhaust valve.

The present invention utilizes the inertial force of the forward and reverse rotation of the generator and the limit electromagnet in the generator to force the piston to compress the newly ignited mixed gas in the combustion chamber for a while until the expansion force of the high-temperature and high-pressure gas exceeds the electromagnetic force and is suddenly released. This kind of "explosion" force is rapidly consumed while the generator is generating a large amount of electricity. When the piston reaches the bottom dead center, the mixed gas has basically been burned, the power is increased, and the harmful gas emitted is reduced. This combustion method is called "compression explosion" technology. This working method is exactly what the original internal combustion engine is most afraid of. Once the "explosion" occurs, the piston will knock the cylinder, the power will be insufficient, the fuel consumption will be high, and the coolant temperature will be high.

Advantages and beneficial effects of the present invention:

The piston and output shaft of the present invention are shared by two cylinders, and the flywheel is replaced by the generator rotor, which has large specific power and low manufacturing and maintenance costs. The existing electronic control technology can be used to adjust the cylinder compression without any mechanical changes, such as the late closing of the intake valve, low compression ratio, injection time, oil volume, etc. The mixed gas is fully burned by adopting the "compression explosion" combustion mode, which improves fuel economy and has low exhaust pollution. The power generation output is suitable for various automobiles, robots and other mechanical power supplies that require independent power sources.

The rack on the piston body of the present invention drives the generator transmission wheel, and the purpose is to convert the left and right movement of the piston body into a rotational torque. This function replaces the crankshaft connecting rod mechanism of the existing engine; the gear replaces the crankshaft to connect the piston and the generator rotor. The work done by the piston body is transmitted to the generator rotor to rotate and generate electricity, and the piston body provides power when compression is required. The main purpose of the dual-cylinder opposition is to eliminate the piston pin of the existing engine, because the piston with the piston pin will knock the cylinder when it explodes. The structure of the present invention can complete all the functions of the existing engine. The left and right movement of the piston rack drives the generator rotor to rotate clockwise and counterclockwise through the output shaft. The rotor rotates about one circle for one piston stroke, which increases the working stroke of the generator. The generator rotor can replace the engine flywheel, transmit electricity to the generator, and can also be used as a starter, which simplifies the structure and optimizes the performance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of embodiment 1 of the present invention.

FIG2 is a schematic diagram of the cross-sectional structure of FIG1I-I.

FIG. 3 is a schematic diagram of the meshing structure of the piston rack of the piston body and the output gear of the output shaft of the present invention.

FIG4 is a schematic diagram of the cross-sectional structure of FIG2II-II of the present invention.

FIG5 is a schematic diagram of the structure of Embodiment 2 of the present invention.

FIG6 is a schematic diagram of the sequence of strokes of the four-stroke engine of Embodiment 2 of the present invention.

Description of the accompanying drawings:

1. Piston body, 1-1. Piston rack, 2. Output shaft, 2-1. Output gear, 3. Cylinder body, 4. Generator, 4-1. Generator rotor, 4-2. Connecting pin, 5. Left exhaust hole, 5', right exhaust hole, 6. Left intake valve, 6', right intake valve, 7. Left pump-injector, 7', right pump-injector, 8. Left cylinder head, 8', right cylinder head, 9. Limiting device, 10. Exhaust valve.

DETAILED DESCRIPTION

In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is considered to be “disposed” or “connected” to another element, it may be directly disposed or connected to the other element or there may be an intermediate element at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification are only for describing specific implementation purposes and are not intended to limit the present invention.

Embodiment 1:

As shown in Figures 1 to 4, the compression explosion internal combustion high-pair transmission power generation mechanism includes a cylinder body 3, a piston body 1 arranged in the cylinder, and an output shaft 2 connected to the piston body and transmitting kinetic energy, and the output shaft is connected to the generator 4. Cylinder heads are respectively arranged at both ends of the cylinder body 3, and cylinders are formed between the two ends of the piston body 1 and the corresponding cylinder heads; and the cylinder bodies 3 and cylinder heads at both ends are provided with exhaust holes, intake valves and pump-injection nozzles that penetrate the corresponding cylinders. A piston rack 1-1 is provided in the middle section of the piston body 1, and the output shaft 2 is arranged corresponding to the piston rack 1-1, and an output gear 2-1 meshing with the piston rack 1-1 is arranged on the output shaft 2, see Figure 3. A limiting device 9 is arranged between the generator rotor 4-1 in the generator 4 and the cylinder body 3. In this example, the limiting device 9 is an electromagnet, and the limiting device is correspondingly arranged between a group of generator rotors 4-1 and the cylinder body 3, see Figures 2 and 4. The exhaust hole is arranged on the cylinder body before the piston body starts to compress the gas in the cylinder, and the outer wall of the piston body is in contact and sealed with the bottom surface of the exhaust hole. In addition, the piston body, the intake valve, the pump-injector, the limit device, and the generator are all connected to the control part, which is connected and controlled by the existing technology, not shown in the figure.

The main functions of the control part:

1. Input:

Piston body position, piston body speed, battery capacity (the position and speed of the piston linked to the generator can be picked up on the rotor).

2. Output:

1. Adjust the current of the excitation coil on the generator rotor to control the speed and position of the piston.

2. Control the opening and closing time of the intake valve. Open it early to achieve complete ventilation and close it late to adjust the cylinder compression ratio. Various fuels can be used.

3. Injection time and injection amount. Suitable for HCCI technology, which can accurately control the combustion point.

4. When the engine is started, current is input to the generator to replace the starter motor. When the piston body has not reached a certain speed, the input current makes the piston reach point A.

5. The generator will automatically shut down when the battery is fully charged and start when the battery is low.

6. Control the current of the limit electromagnet to ensure complete combustion of the mixture and sudden release of pressure when it reaches the maximum.

Specifically, the generator is completely transformed for the existing engine structure, the crank connecting rod mechanism, i.e., the low pair transmission, is cancelled and replaced with a gear rack transmission, i.e., the high pair transmission, only the cylinder and the piston are retained and the two cylinders are combined into one device. As shown in FIG1, it is a schematic diagram of an opposed double-cylinder two-stroke internal combustion generator. This figure only describes the improved part of the present invention, and the other mechanisms of the engine such as gas distribution, oil supply, cooling, and lubrication are still used in the original technology without description. It is different from the original two-stroke internal combustion engine in that an intake valve and a pump-injector are installed on the cylinder head, the two cylinders are opposed to each other, point A is the top dead center, point C is the bottom dead center, and point B is the exhaust and compression starting point, one cylinder works and the other cylinder is compressed. The generator structure opposes the two cylinders to each other through the cylinder body 3, and the two pistons are processed into a piston body 1 with the head facing outward. A piston rack 1-1 is processed or embedded on the piston body 1 to match the output shaft 2 gear and is connected to the generator rotor 4-1 as a whole. As shown in Figure 1, the engine structure does not have a crankshaft, connecting rod, or flywheel, which are replaced by the output shaft 2, piston body 1, and generator rotor 4-1 in the figure. One stroke of the cylinder drives the generator rotor 4-1 for about one circle, and the computer controls the speed, position, power generation, opening and closing time of the intake valve 6, and the injection time and injection amount of the pump-injector 7 to achieve the advantages of stable engine operation, high fuel consumption ratio, and low emission of harmful gases. When the left and right pistons spray oil in the cylinder, ignite and work, drive the piston rack to move left and right, and the output shaft rotates clockwise in the positive and reverse directions, and the generator works and generates electricity.

Specific structural principle of the present invention:

1. The two pistons of the piston body are assembled into one part. One piston does work in the cylinder, and the other piston exhausts air in the cylinder. The intake air is compressed to prepare for fuel injection and ignition.

2. When the cylinder is burning and doing work, the piston directly drives the piston rack to move left and right, and drives the generator rotor to rotate forward and reverse through the output shaft output gear to generate electricity.

3. The generator in the compression explosion internal combustion high-pair transmission power generation mechanism is servo-linked through computer electronic control technology to control the speed, position and pause of the piston body in the cylinder.

4. The compression explosion internal combustion high-pair transmission generator mechanism adopts the "compression explosion" technology. The inertia force of the generator rotor and the suction force of the limit electromagnet jointly force the cylinder piston to press the newly burned mixture into the combustion chamber. When the expansion force of the mixed gas exceeds the electromagnetic force, it is suddenly released.

The working principle of the present invention is shown in Figures 1 and 2:

Starting: The computer controls the control part, the battery supplies power to the generator, the generator rotor 4-1 rotates clockwise, and the output gear 2-1 on the output shaft 2 drives the piston rack 1-1 on the piston body 1 to move to the right, and the piston body 1 is pushed to the right to perform the first stroke of the right cylinder.

The first stroke of the right cylinder: The stroke starts from point C', the right exhaust hole 5' is fully opened, exhaust is completed, and the right intake valve 6' starts to blow air into the right cylinder. When the piston body 1 continues to move to the right to point B', the exhaust hole 5' is covered, the intake valve 6' is also closed, the pure air in the cylinder is compressed, and the pressure and temperature rise. When the piston approaches point A', the high-pressure fuel is sprayed into the right cylinder from the pump nozzle 7' and ignites and burns, causing the pressure in the right cylinder to rise sharply.

In the second stroke of the right cylinder, the high-temperature and high-pressure gas expands rapidly. At this time, the limit device 9 in the generator 4, i.e., the limit electromagnet, attracts the generator rotor 4-1, causing the piston body to pause and wait for the mixture in the combustion chamber to fully burn. When the expansion force is greater than the electromagnet suction force, it is suddenly released to produce the effect of "explosion". The piston body 1 is pushed to move rapidly from point A' to point C' (left), driving the generator rotor 4-1 to rotate counterclockwise to generate electricity and charge the battery. When the piston body is at point B', the exhaust hole 5' begins to exhaust, and the exhaust is completed when it moves to point C'. The intake valve 6' opens to blow air into the right cylinder to complete the second stroke. At this time, the left cylinder has completed the intake compression and fuel injection combustion, and is ready for the second stroke. The sequence is the same as the right cylinder and the left cylinder work. The generator rotor rotates clockwise. The left and right cylinders take turns to spray oil and ignite to work, and the generator charges the battery intermittently. The present invention outputs power by electricity.

Embodiment 2:

As shown in FIG5 , the structure of this embodiment is basically the same as that of embodiment 1, except that in this embodiment, two groups of cylinder bodies, piston bodies and cylinder heads are provided to form a four-cylinder structure, and the output shaft 2 is provided between the piston bodies in the upper and lower cylinder bodies, and is meshed with the rack and pinion gears of the upper and lower piston bodies at the same time. An exhaust valve 10 is also provided on the cylinder head of the four-cylinder structure.

In this example, the exhaust valve 10 is activated and the exhaust hole 5 is closed, which is a four-cylinder four-stroke engine, and only one cylinder does work in each stroke. The ignition injection sequence is shown in Figure 6.

The working intake and exhaust principles are the same as those of the original four-stroke engine, and the output transmission working mode is the same as that of the two-stroke engine in Example 1.

Embodiment 3:

This example has the same structure as Example 2. In this example, the exhaust valve 10 is not enabled and it is a two-stroke engine, that is, two cylinders diagonally inject fuel and work simultaneously in one stroke. The working principle is basically the same as that of Example 1.

Embodiment 4:

This example has the same structure as Example 2. In this example, the exhaust valve 10 is not enabled. The control part computer controls the opening and closing time of the intake valve 6, which is a four-stroke engine. The intake valve 6 is closed only in the compression and power strokes, and is opened in the intake and exhaust strokes to blow air into the cylinder. The exhaust hole 5 still has the main exhaust function. Each cylinder has two strokes of air blown into the cylinder to reduce the temperature in the cylinder. For high-power low-speed engines, air cooling can be used. The working principle is basically the same as that of Example 1, and the stroke ignition sequence is basically the same as that of Example 2.

The embodiments described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims (1)

1. A compression explosion internal combustion high-pair transmission power generation mechanism, comprising a cylinder body, a piston body arranged in the cylinder, and an output shaft connected to the piston body and transmitting kinetic energy, wherein the output shaft is connected to a generator, characterized in that: Cylinder heads are provided at both ends of the cylinder body, and cylinders are formed between the two ends of the piston body and the corresponding cylinder heads; and exhaust holes penetrating the corresponding cylinders are provided on the cylinder bodies at both ends, and intake valves and pump-injection nozzles are provided on the cylinder heads; The middle section of the piston body is provided with a piston rack, the output shaft is provided corresponding to the piston rack, and the output shaft is provided with an output gear meshing with the piston rack; A limiting device is provided between the generator rotor and the cylinder body on the generator; The limiting device is an electromagnet, and one or two sets of the limiting device are correspondingly arranged between the generator rotor and the cylinder body, which can absorb the generator rotor and make the piston body pause to wait for the mixture in the combustion chamber to be fully burned. The electromagnet can adjust the magnetic force to control the pause time of the piston body. The exhaust hole is arranged on the cylinder body before the starting end of the piston body starting to compress the gas in the cylinder, and the outer wall of the piston body is in contact and sealed with the bottom surface of the exhaust hole; The cylinder body, piston body and cylinder head are arranged in one group or two groups to form a two-cylinder structure or a four-cylinder structure. The output shaft is arranged between the piston bodies in the upper and lower cylinder bodies and is meshed with the rack and pinion gears of the upper and lower piston bodies for transmission. The cylinder head of the four-cylinder structure is also provided with an exhaust valve.