CN103821612A - Magnetic drive engine energy transmission system - Google Patents

Abstract

The invention discloses a magnetic transmission engine energy transfer system, relates to an engine energy transfer system, and belongs to the field of energy and power. The invention includes an engine and crankshaft flywheel assembly. The engine includes: fuel injector, cylinder head, heat sink, scavenging air port, air intake port, exhaust port and piston; crankshaft flywheel assembly includes crankshaft, flywheel, flywheel ring gear, flywheel permanent magnet group. Through the interaction between the permanent magnet of the piston in the engine cylinder and the permanent magnet of the flywheel, the reciprocating motion of the piston is converted into the rotational motion of the crankshaft during the work and exhaust strokes, and the force on the piston is converted into the output torque of the crankshaft. To drive the wheels of the car to rotate; in the compression and intake strokes, the rotary motion of the crankshaft is converted into the reciprocating linear motion of the piston. The invention can reduce the structural complexity of the engine energy transmission chain, reduce the volume of the engine, and improve the energy transmission efficiency of the complete engine system.

Description

A magnetic drive motor energy transfer system

technical field

The invention relates to an engine energy transmission system, in particular to an engine energy transmission system based on magnetic drive, and belongs to the field of energy and power.

Background technique

Traditional engines include two types of thermal cycles, two-stroke and four-stroke. Since the linear motion of the piston cannot directly realize the rotational power output, it is necessary to rely on the crank-link mechanism to complete energy conversion, transmit force and change the motion mode. When the four-stroke engine is working, the crank-link mechanism converts the reciprocating motion of the piston into the rotational motion of the crankshaft during the working stroke, and at the same time converts the force on the piston into the torque output by the crankshaft to drive the wheels of the car to rotate. In the other three strokes, namely the intake, compression, and exhaust strokes, the rotational motion of the crankshaft is converted into the reciprocating linear motion of the piston. The crank connecting rod mechanism is composed of parts of piston group, connecting rod group and crankshaft flywheel group.

When the engine is working, the crank connecting rod mechanism is directly in contact with high temperature and high pressure gas, the rotation speed of the crankshaft is very high, the linear velocity of the reciprocating motion of the piston is quite large, and at the same time it is in contact with combustible mixture and combustion exhaust gas, the crank connecting rod mechanism is also subject to chemical corrosion effect, and lubrication is difficult. It can be seen that the working conditions of the crank connecting rod mechanism are quite harsh, and it has to withstand high temperature, high pressure, high speed and chemical corrosion. The traditional crankshaft is mainly composed of crank, crank throw and crank pin. Its main feature is the stepped shaft section. During the working process, the reciprocating inertial force and moment of inertia caused by the reciprocating motion of the piston group cannot be completely balanced, and the resulting vibration The problem with noise is becoming more and more prominent. At the same time, the piston slides along the cylinder wall at high speed under the action of side pressure. Due to poor lubrication conditions, the friction loss is large and the wear is serious.

From the perspective of energy efficiency, the energy of a traditional engine is transferred from the chemical energy of the fuel to the rotational mechanical energy of the crankshaft of the engine, and then transferred to the wheels by the transmission. As the global energy crisis becomes increasingly prominent, the requirements for engine energy saving are constantly increasing. On the one hand, people are committed to the improvement and perfection of traditional engines, and on the other hand, they are constantly looking for new power transmission devices.

Contents of the invention

The technical problem to be solved by the invention is to reduce the structural complexity of the engine energy transmission chain, reduce the volume of the engine, and improve the energy transmission efficiency of the complete engine system. The invention discloses a magnetic drive engine energy transmission system.

The purpose of the present invention is achieved through the following technical solutions.

The energy transfer system of a magnetic drive engine of the present invention converts the reciprocating motion of the piston into the rotational motion of the crankshaft during the work and exhaust strokes through the magnetic interaction between the permanent magnet of the piston in the cylinder of the engine and the permanent magnet of the flywheel. The force is converted into the torque output by the crankshaft to drive the wheels of the car to rotate; in the compression and intake strokes, the rotational motion of the crankshaft is converted into the reciprocating linear motion of the piston.

An energy transmission system of a magnetic drive engine of the present invention comprises an engine and a crankshaft flywheel assembly. The engine includes: fuel injector, cylinder head, cooling fin, scavenging air port, air intake port, exhaust port and piston; crankshaft flywheel assembly includes crankshaft, flywheel, flywheel ring gear, flywheel permanent magnet group, described flywheel permanent magnet group Including N-pole flywheel permanent magnets and S-pole flywheel permanent magnets, the total number of flywheel permanent magnets contained in the flywheel permanent magnet group must be an even number, and the polarities of adjacent flywheel permanent magnets are opposite.

Described fuel injector, cylinder head, cooling fin, piston, scavenging air port, air intake port and exhaust port are the same as the fuel injector, cylinder head, cooling fin, piston, scavenging air port, air intake port of engine in the prior art Same structure as the exhaust port. The engine cylinder is cast from non-ferromagnetic material, one end of the engine cylinder is sealed, the other end is fixedly connected with the cylinder head, the outer surface of the engine cylinder is arranged with cooling fins, and the side of the cylinder is provided with an air inlet, Exhaust port and scavenging port; the top of the cylinder head has a through hole for installing the fuel injector, and the end of the fuel injector communicates with the inner cavity of the cylinder through the through hole on the top of the cylinder head; the controller is connected with the fuel injector, It is used to control the fuel injector to inject high-pressure fuel into the cylinder of the engine.

The piston is cast from non-ferromagnetic material, and the head is provided with a ring groove for installing the piston ring. The piston skirt is embedded with a permanent magnet of the piston. It is N pole.

The crankshaft flywheel assembly is located outside the cylinder block in the direction opposite to the fuel injector. The end of the crankshaft is connected to the flywheel, and the outer edge of the flywheel is embedded near the end of the crankshaft into a flywheel permanent magnet group. The flywheel permanent magnet group includes an N pole flywheel permanent magnet and an S pole flywheel permanent magnet, and the total number of flywheel permanent magnets included in the flywheel permanent magnet group must be an even number, and the polarities of the permanent magnets of adjacent flywheels are opposite. The conversion between the reciprocating linear motion of the piston and the rotary motion of the crankshaft is realized through the magnetic interaction between the permanent magnet of the piston and the permanent magnet of the flywheel. The other end of the outer edge of the flywheel is pressed with a flywheel ring gear, and the flywheel ring gear is used for meshing with the drive gear of the starter for starting the engine.

The energy transfer system of a magnetic drive engine of the present invention can be used as a single-cylinder engine, or can operate with multiple cylinders and multiple modules.

In the present invention, the engine part can be designed as a free-piston two-stroke engine, and the engine can be changed into a free-piston four-stroke engine by changing the number of flywheel permanent magnets included in the flywheel permanent magnet group on the flywheel or changing the number of cylinders; The piston engine has a variable compression ratio, so the engine in the present invention can use gasoline as fuel, and can also use various fuel oils such as diesel or combustible gases as fuel;

In the present invention, the running speed of the crankshaft can be changed directly by changing the number of flywheel permanent magnets contained in the flywheel permanent magnet group. In order to reduce the influence of the magnetic force between different magnetic permanent magnets on the piston skirt permanent magnet, the optimal number of flywheel permanent magnets arranged in the flywheel permanent magnet group is two, that is, one N pole flywheel permanent magnet and one S pole Flywheel permanent magnet.

In the energy transfer system of a magnetic drive engine of the present invention, when the system is at rest, the piston is located at the bottom dead center, and the starting end of the flywheel permanent magnet with N poles on the outer edge of the flywheel is located at the top of the flywheel. Its working process includes cold machine start process, stable operation process and misfire restart process. Taking a two-stroke engine as an example, its working process is as follows:

1) The cold machine start process. The drive gear of the external starter of the system drives the flywheel to rotate clockwise. When the starting end of the N-pole permanent magnet on the outer edge of the flywheel passes the top of the flywheel, the piston begins to receive the upward force of the flywheel permanent magnet on the flywheel, and moves upward under the action of this force; When the starting end of the flywheel permanent magnet with the S pole on the outer edge of the flywheel passes the top of the flywheel, the piston moves to the top dead center, and the air in the cylinder is compressed during the movement of the piston from the bottom dead center to the top dead center; after that, the piston begins to be affected by the flywheel permanent magnet on the flywheel downward force, and move downward under the action of this force until the starting end of the N-pole flywheel permanent magnet on the outer edge of the flywheel passes the top of the flywheel, and the piston moves to the bottom dead center at this time; the piston in the engine cylinder is under the magnetic force of the flywheel permanent magnet Under the action of the engine, the above reciprocating motion is repeated until the combustion and explosion conditions in the engine are reached and the piston is at the top dead center, the fuel injector installed on the cylinder head sprays out high-pressure fuel, and the combustion produces high-pressure gas, which pushes the piston to move down to the dead center and starts Work is done externally, and the cold machine start-up process is completed.

2) Stable operation process. At the beginning of the stable operation process, the piston is at the top dead center, and the starting end of the flywheel permanent magnet with the S pole on the outer edge of the flywheel passes through the top of the flywheel. After the fuel injected into the cylinder burns, the gas pressure generated pushes the piston to move downward, doing work externally, and the flywheel is The force of the piston permanent magnet in the clockwise direction continues to rotate clockwise; when the exhaust port is opened, it starts to exhaust freely, and after the scavenging port is opened, the scavenging stroke starts; when the piston moves down to the bottom dead center, the flywheel The starting end of the N-pole permanent magnet on the outer edge of the flywheel passes through the top of the flywheel. After that, the piston begins to receive the upward force of the flywheel permanent magnet on the flywheel, and moves upward under the action of this force to complete the compression and intake strokes. When the S pole on the outer edge of the flywheel When the starting end of the permanent magnet of the flywheel passes the top of the flywheel, the piston moves to the top dead center, the fuel injected into the cylinder burns, and the above-mentioned reciprocating motion is repeated;

The piston in the engine cylinder interacts with the permanent magnet of the flywheel to convert the reciprocating motion of the piston into the rotational motion of the crankshaft during the work and exhaust strokes, and convert the force on the piston into the torque output by the crankshaft to drive the car. The wheel rotates; the rotary motion of the crankshaft is converted into the reciprocating linear motion of the piston during the compression and intake strokes.

3) Misfire restart process. When there is a fire in the cylinder due to combustion fluctuations, etc., the piston moves downward under the magnetic force of the flywheel permanent magnet on the flywheel until the starting end of the N-pole flywheel permanent magnet on the outer edge of the flywheel passes the top of the flywheel, and the piston moves to the bottom dead center at this time; Afterwards, the piston begins to receive the upward force of the flywheel permanent magnet on the flywheel, and moves upward under the action of this force; when the starting end of the S-pole flywheel permanent magnet on the outer edge of the flywheel passes the top of the flywheel, the piston moves to the top dead center; The air is compressed, and the fuel injector on the cylinder head injects high-pressure fuel, which burns to generate high-pressure gas, which pushes the piston to move down to the dead center, starts to do work, and the engine enters the stable operation stage again.

Beneficial effect:

1. In the energy transfer system of a magnetic drive engine of the present invention, the conversion between the reciprocating linear motion of the piston and the rotational motion of the crankshaft is realized through the magnetic interaction between the permanent magnet of the piston and the permanent magnet of the flywheel, eliminating the need for a connecting rod assembly and solving the problem of In the prior art, the structure of the engine transmission chain is complicated, the volume is large, the wear is serious, and the energy transmission efficiency of the whole machine system is low.

2. The energy transfer system of a magnetic drive engine of the present invention has variable compression ratio characteristics, multi-fuel adaptability, module versatility and speed variability.

Description of drawings

Fig. 1 is a structural representation of a single-cylinder two-stroke engine of the present invention;

Fig. 2 is the crankshaft flywheel assembly left side view of the present invention;

Fig. 3 is a structural representation of a twin-cylinder two-stroke engine of the present invention;

Among them: 1—fuel injector, 2—cylinder head, 3—radiating fin, 4—piston, 5—scavenging port, 6—intake port, 7—exhaust port, 8—piston permanent magnet, 10—flywheel, 11 - crankshaft, 12 - N pole flywheel permanent magnet, 13 - S pole flywheel permanent magnet, 14 - flywheel ring gear.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

The energy transmission system of a magnetic drive engine of the present invention shortens the transmission chain, and through the magnetic interaction between the permanent magnet 8 of the piston in the cylinder of the engine and the permanent magnet of the flywheel, the reciprocating motion of the piston 4 is converted into a crankshaft during the work and exhaust strokes. The rotary motion of the crankshaft 11 converts the force on the piston 4 into the external output torque of the crankshaft 11 to drive the wheels of the car to rotate; in the compression and intake stroke, the rotary motion of the crankshaft 11 is converted into the reciprocating linear motion of the piston 4 .

The novel engine energy transfer system of the present invention can be used as a single-cylinder engine, and can operate with multiple cylinders and multiple modules.

In the present invention, the engine part can be designed as a free-piston two-stroke engine, or the engine can be changed into a free-piston four-stroke engine by changing the number of flywheel permanent magnets contained in the flywheel permanent magnet group or changing the number of cylinders.

Example 1

As shown in Fig. 1 and Fig. 2, the present embodiment is a single-cylinder two-stroke engine structure, which mainly includes an engine and a crankshaft flywheel assembly. The engine includes: fuel injector 1, cylinder head 2, heat sink 3, piston 4, scavenging port 5, air intake port 6 and exhaust port 7; crankshaft flywheel assembly includes crankshaft 11, flywheel 10, flywheel ring gear 14, flywheel permanent Magnet group, the flywheel permanent magnet group includes N pole flywheel permanent magnet 12 and S pole flywheel permanent magnet 13, the total number of flywheel permanent magnets included in the flywheel permanent magnet group must be an even number, and the polarities of adjacent flywheel permanent magnets are opposite.

Described fuel injector 1, cylinder head 2, cooling fin 3, piston 4, scavenging air port 5, air inlet 6 and exhaust port 7 are the same as the fuel injector 1 of engine in the prior art, cylinder head 2, cooling fin 3. The piston 4, the scavenging port 5, the air inlet 6 and the exhaust port 7 are the same. The engine block is cast from non-ferromagnetic material, one end of the engine block is sealed, and the other end is fixedly connected with the cylinder head 2, the outer surface of the engine block is arranged with cooling fins 3, and the side of the block is provided with air intake Port 6, exhaust port 7 and scavenging port 5; the top of the cylinder head 2 has a through hole for installing the fuel injector 1, and the end of the fuel injector 1 communicates with the inner cavity of the cylinder through the through hole on the top of the cylinder head 2; The controller is connected with the fuel injector 1, and is used to control the fuel injector 1 to inject high-pressure fuel into the cylinder of the engine.

The piston 4 is cast from a non-ferromagnetic material, and the head is provided with a ring groove for installing a piston ring. The skirt of the piston 4 is embedded with a permanent magnet 8, and the polarity of the permanent magnet 8 is S at the end close to the head of the piston. pole, and the other end is N pole.

The crankshaft flywheel assembly is located outside the cylinder block in the direction opposite to the fuel injector 1 . Crankshaft 11 end links to each other with flywheel 10, and the outer edge of flywheel 10 is embedded flywheel permanent magnet group near one end of crankshaft 11, and described flywheel permanent magnet group comprises N pole flywheel permanent magnet 12 and S pole flywheel permanent magnet 13, and flywheel permanent magnet group The total number of flywheel permanent magnets included must be an even number, with adjacent flywheel permanent magnets having opposite polarities. The conversion between the reciprocating linear motion of the piston 4 and the rotational motion of the crankshaft 11 is realized through the magnetic interaction between the piston permanent magnet 8 and the flywheel permanent magnet. The other end of the outer edge of the flywheel 10 is pressed with a flywheel ring gear 14, and the flywheel ring gear 14 is used to mesh with the drive gear of the starter for starting the engine.

In a novel engine energy transfer system of the present invention, when the system is at rest, the piston 4 is located at the bottom dead center, and the N pole flywheel permanent magnet 12 starting end of the outer edge of the flywheel 10 is located at the top of the flywheel 10. Its working process includes cold machine start process, stable operation process and misfire restart process.

1) The cold machine start process. The driving gear of the external starter of the system drives the flywheel 10 to rotate clockwise. When the N-pole permanent magnet 12 on the outer edge of the flywheel passes the top of the flywheel 10, the piston 4 begins to receive the upward force of the permanent magnet on the flywheel 10, and when this force acts Moving downwards and upwards; when the initial end of the flywheel permanent magnet 13 with the S pole on the outer edge of the flywheel passes the top of the flywheel 10, the piston 4 moves to the top dead center, and the air in the cylinder is compressed during the movement of the piston 4 from the bottom dead center to the top dead center; thereafter Piston 4 begins to receive the downward force of the permanent magnet on the flywheel 10, and moves downward under the action of this force until the starting end of the N pole flywheel permanent magnet 12 on the outer edge of the flywheel passes the top of the flywheel, and now the piston 4 moves to the bottom dead center ; The piston 4 in the engine cylinder repeats the above-mentioned reciprocating motion under the action of the piston permanent magnet 8 and the flywheel permanent magnet magnetic force until reaching the combustion explosion condition in the engine and when the piston 4 is at the top dead center, the fuel injector 1 mounted on the cylinder head High-pressure fuel is injected, and high-pressure gas is generated by combustion, and the piston 4 is driven to the bottom dead center, and starts to do work externally, and the start-up process of the cold machine is completed;

2) Stable operation process. At the beginning of the stable running process, the piston 4 is at the top dead center, and the starting end of the S pole flywheel permanent magnet 13 on the outer edge of the flywheel passes through the top of the flywheel 10. After the fuel injected into the cylinder by the fuel injector 1 burns, the gas pressure generated pushes the piston 4 directions. Downward movement, external work, the flywheel 10 is subjected to the clockwise force of the piston permanent magnet 13, and continues to rotate clockwise; when the exhaust port 7 is opened, the engine starts to exhaust freely, and after the scavenging port 5 is opened, the scavenging stroke begins When the piston 4 moves downward to the bottom dead center, the N pole flywheel permanent magnet 12 starting end of the flywheel outer edge passes through the flywheel 10 top, after this, the piston 4 begins to be subjected to the upward acting force of the N pole flywheel permanent magnet 12, and in this force Under the action, it moves upwards to complete the compression and intake strokes. When the initial end of the flywheel permanent magnet 13 with the S pole on the outer edge of the flywheel passes the top of the flywheel 10, the piston 4 moves to the top dead center, and the fuel injected by the fuel injector 1 into the cylinder burns, repeating the above-mentioned reciprocating motion;

The magnetic force interaction between the piston permanent magnet 8 and the flywheel permanent magnet in the engine cylinder converts the reciprocating motion of the piston 4 into the rotational motion of the crankshaft 11 during the engine work and exhaust stroke, and converts the active force on the piston 4 into The torque output by the crankshaft 11 to drive the wheels of the car to rotate; in the compression and intake strokes, the rotational motion of the crankshaft 11 is converted into the reciprocating linear motion of the piston 4;

3) Misfire restart process. When there is a fire in the cylinder due to combustion fluctuations, etc., the piston 4 moves downward under the magnetic force of the permanent magnet on the flywheel until the starting end of the N-pole flywheel permanent magnet 12 on the outer edge of the flywheel passes the top of the flywheel, and the piston 4 moves to the bottom. point; thereafter the piston 4 began to be subjected to the upward force of the S pole flywheel permanent magnet 13 on the flywheel, and moved upward under the action of this force; when the initial end of the S pole flywheel permanent magnet 13 on the outer edge of the flywheel passed the top of the flywheel 10, the piston 4 moved to the top dead center; during this process, the air in the cylinder is compressed, and the fuel injector 1 on the cylinder head injects high-pressure fuel, which burns to generate high-pressure gas, pushes the piston 4 to run to the bottom dead center, and starts to do work externally, and the engine enters into a stable operation again stage.

Example 2

As shown in Figure 3, the present embodiment is a two-cylinder two-stroke engine structure, which mainly includes an engine and a crankshaft flywheel assembly. There are two engines and one crankshaft flywheel assembly, and the two engines are symmetrically arranged on both sides of the crankshaft flywheel assembly. The engine includes: fuel injector 1, cylinder head 2, heat sink 3, piston 4, scavenging port 5, air intake port 6 and exhaust port 7; crankshaft flywheel assembly includes crankshaft 11, flywheel 10, flywheel ring gear 14, flywheel permanent Magnet group, the flywheel permanent magnet group includes N pole flywheel permanent magnet 12 and S pole flywheel permanent magnet 13, the total number of flywheel permanent magnets included in the flywheel permanent magnet group must be an even number, and the polarities of adjacent flywheel permanent magnets are opposite.

Described fuel injector 1, cylinder head 2, cooling fin 3, piston 4, scavenging air port 5, air inlet 6 and exhaust port 7 are the same as the fuel injector 1 of engine in the prior art, cylinder head 2, cooling fin 3. The piston 4, the scavenging port 5, the air inlet 6 and the exhaust port 7 are the same. The engine block is cast from non-ferromagnetic material, one end of the engine block is sealed, and the other end is fixedly connected with the cylinder head 2, the outer surface of the engine block is arranged with cooling fins 3, and the side of the block is provided with air intake Port 6, exhaust port 7 and scavenging port 5; the top of the cylinder head 2 has a through hole for installing the fuel injector 1, and the end of the fuel injector 1 communicates with the inner cavity of the cylinder through the through hole on the top of the cylinder head 2; The controller is connected with the fuel injector 1, and is used to control the fuel injector 1 to inject high-pressure fuel into the cylinder of the engine.

The piston 4 is cast from a non-ferromagnetic material, and the head is provided with a ring groove for installing a piston ring. The skirt of the piston 4 is embedded with a permanent magnet 8, and the polarity of the permanent magnet 8 is S at the end close to the head of the piston. pole, and the other end is N pole.

Described crankshaft 11 end links to each other with flywheel 10, and the outer edge of flywheel 10 is embedded flywheel permanent magnet group near one end of crankshaft 11, and described flywheel permanent magnet group comprises N pole flywheel permanent magnet 12 and S pole flywheel permanent magnet 13, flywheel permanent magnet The total number of flywheel permanent magnets contained in the magnet group must be an even number, and the polarities of adjacent flywheel permanent magnets are opposite. The conversion between the reciprocating linear motion of the piston 4 and the rotational motion of the crankshaft 11 is realized through the magnetic interaction between the piston permanent magnet 8 and the flywheel permanent magnet. The other end of the outer edge of the flywheel 10 is pressed with a flywheel ring gear 14, and the flywheel ring gear 14 is used to mesh with the drive gear of the starter for starting the engine.

The working process of this embodiment is similar to the working process of embodiment 1, and its working process includes a cold engine start process, a stable operation process and a misfire restart process.

The scope of protection of the present invention is not limited to this embodiment, which is used to explain the present invention, and all changes or modifications under the same principle and conceptual conditions as the present invention are within the scope of protection disclosed by the present invention.

Claims (8)

1. a magnetic drives engine power delivery system, mainly comprises motor and crankshaft-flywheel assembly; Motor comprises: oil sprayer (1), cylinder head (2), radiating fin (3), piston (4), scavenging port (5), suction port (6) and relief opening (7); It is characterized in that: described piston (4) is formed by Nonferromugnetic material casting, head has the annular groove for ring installation, piston (4) skirt section embeds piston permanent magnet (8), and piston permanent magnet (8) polarity is to be the S utmost point near one end of piston crown, and the other end is the N utmost point; Described crankshaft-flywheel assembly comprises bent axle (11), flywheel (10), flywheel ring gear (14), flywheel set of permanent magnets, described flywheel set of permanent magnets comprises N utmost point flywheel permanent magnet (12) and S utmost point flywheel permanent magnet (13), the flywheel permanent magnet sum that flywheel set of permanent magnets comprises must be even number, and adjacent flywheel permanent magnet polarity is contrary;

By piston permanent magnet (8) and flywheel magnetic mutual action of permanent magnet in cylinder, in acting and exhaust stroke, the to-and-fro motion of piston (4) is transformed into rotatablely moving of bent axle (11), change the active force on piston (4) into bent axle (11) the externally torque of output, to drive automotive wheel to rotate; In compression and intake stroke, again rotatablely moving of bent axle (11) is transformed into the linear reciprocating motion of piston (4).

2. a kind of magnetic drives engine power delivery system according to claim 1, is characterized in that: described crankshaft-flywheel assembly is positioned at and the rightabout cylinder block of oil sprayer (1) outside; Bent axle (11) end is connected with flywheel (10), the outer rim of flywheel (10) embeds flywheel set of permanent magnets near one end of bent axle (11), described flywheel set of permanent magnets comprises N utmost point flywheel permanent magnet (12) and S utmost point flywheel permanent magnet (13), the flywheel permanent magnet sum that flywheel set of permanent magnets comprises must be even number, and adjacent flywheel permanent magnet polarity is contrary; By piston permanent magnet (8) and flywheel magnetic mutual action of permanent magnet, realize the conversion between rotatablely moving of the linear reciprocating motion of piston (4) and bent axle (11); Flywheel (10) the outer rim the other end is pressed with flywheel ring gear (14), and flywheel ring gear (14) is for engaging with the actuation gear of starter motor, for piloting engine.

3. a kind of magnetic drives engine power delivery system according to claim 1 and 2, is characterized in that: described oil sprayer (1), cylinder head (2), radiating fin (3), piston (4), scavenging port (5), suction port (6) and relief opening (7) is identical with relief opening (7) with oil sprayer (1), cylinder head (2), radiating fin (3), piston (4), scavenging port (5), the suction port (6) of motor in prior art; Described engine cylinder-body is formed by Nonferromugnetic material casting, the sealing of described engine cylinder-body one end, the other end is fixedly connected with cylinder head (2), and engine cylinder-body outer surface cloth is equipped with radiating fin (3), and cylinder body sidepiece has suction port (6), relief opening (7) and scavenging port (5); Cylinder head (2) top has the through hole for oil sprayer (1) is installed, and the end of oil sprayer (1) is communicated with the inner chamber of cylinder by the through hole at cylinder head (2) top; Described controller is connected with oil sprayer (1), for controlling oil sprayer (1) to inject high pressure fuel oil in described cylinder.

4. a kind of magnetic drives engine power delivery system according to claim 3, is characterized in that: when system quiescence, piston (4) is positioned at lower dead center place, flywheel (10) outer rim N utmost point flywheel permanent magnet (12) starting point is positioned at flywheel (10) top; Working procedure comprises cold machine start-up course, stable operation process and the restart procedure that catches fire;

1) cold machine start-up course; The actuation gear flywheel driven (10) of the outside starter motor of system clockwise rotates, flywheel outer rim N utmost point flywheel permanent magnet (12) starting point is through flywheel 10) when top, piston (4) starts to be subject to the upper permanent magnet of flywheel (10) active force upwards, and moves upward under this power effect; When flywheel outer rim S utmost point flywheel permanent magnet (13) starting point is when flywheel (10) top, piston (4) moves to top dead center, and piston (4) is moved in the process of top dead center in cylinder air by lower dead center compressed; This back piston (4) starts to be subject to the downward active force of permanent magnet on flywheel (10), and under the effect of this power, moves downward until flywheel outer rim N utmost point flywheel permanent magnet (12) starting point passes through flywheel top, and now piston (4) moves to lower dead center; Piston (4) in cylinder repeats above-mentioned to-and-fro motion until reach motor internal combustion decrepitate clockwork spring part and when piston (4) is positioned at top dead center under the effect of piston permanent magnet (8) and flywheel permanent magnet magnetic force, the oil sprayer (1) being contained on cylinder cap ejects high pressure fuel, burning produces high-pressure gas, promoting piston (4) moves to lower dead center, start externally acting, cold machine start-up course completes;

2) stable operation process; When stable operation process starts, piston (4) is positioned at top dead center, flywheel outer rim S utmost point flywheel permanent magnet (13) starting point is through flywheel (10) top, oil sprayer (1) sprays into after the oil inflame of cylinder interior, the gas pressure producing promotes piston (4) and moves downward, externally acting, flywheel (10) is subject to piston permanent magnet (13) active force along clockwise direction, continues to turn clockwise; In the time that relief opening (7) is opened, motor starts free exhaust, after scavenging port (5) is opened, starts scavenging stroke; When piston 4) while moving to lower dead center downwards, flywheel outer rim N utmost point flywheel permanent magnet (12) starting point is through flywheel (10) top, after this, piston (4) starts to be subject to N utmost point flywheel permanent magnet (12) active force upwards, and move upward under this power effect, complete compression and intake stroke, in the time of flywheel outer rim S utmost point flywheel permanent magnet (13) starting point process flywheel (10) top, piston (4) moves to top dead center, oil sprayer (1) sprays into the oil inflame of cylinder interior, repeats above-mentioned to-and-fro motion;

Magnetic interaction between piston permanent magnet (8) and flywheel permanent magnet in cylinder, in motor acting and exhaust stroke, the to-and-fro motion of piston (4) is transformed into rotatablely moving of bent axle (11), change the active force on piston (4) into bent axle (11) the externally torque of output, to drive automotive wheel to rotate; In compression and intake stroke, again rotatablely moving of bent axle (11) is transformed into the linear reciprocating motion of piston (4);

3) restart procedure that catches fire; While making to catch fire in cylinder due to reasons such as combustion fluctuations, under the effect of piston (4) permanent magnet magnetic force on flywheel, move downward, until flywheel (10) outer rim N utmost point flywheel permanent magnet (12) starting point process flywheel top, now piston (4) moves to lower dead center; This back piston (4) starts to be subject to S utmost point flywheel permanent magnet (13) active force upwards on flywheel, under this power effect, moves upward; In the time that the starting point of flywheel outer rim S utmost point flywheel permanent magnet (13) passes through flywheel (10) top, piston (4) moves to top dead center; In this process, in cylinder, air is compressed, and the oil sprayer (1) on cylinder cap ejects high pressure fuel, and burning produces high-pressure gas, promotes piston (4) to lower dead center operation, starts externally acting, and motor enters stable operation stage again.

5. a kind of magnetic drives engine power delivery system according to claim 1 and 2, is characterized in that: the flywheel permanent magnet quantity comprising by the flywheel set of permanent magnets changing on flywheel (10) or change number of cylinders change motor into free-piston (4) four stroke engine; Meanwhile, because free-piston (4) motor has alterable compression ratio characteristic, therefore described motor both can be using gasoline as fuel, also can be using the multiple fuels such as diesel oil or inflammable gas as fuel.

6. a kind of magnetic drives engine power delivery system according to claim 1 and 2, is characterized in that: described motor is selected two-stroke engine with double cylinders structure, mainly comprises motor and crankshaft-flywheel assembly; Described motor quantity is two, and crankshaft-flywheel component count is one, and two motors are arranged symmetrically in crankshaft-flywheel assembly both sides; Meanwhile, because free-piston (4) motor has alterable compression ratio characteristic, therefore described motor both can be using gasoline as fuel, also can be using the multiple fuels such as diesel oil or inflammable gas as fuel.

7. a kind of magnetic drives engine power delivery system according to claim 1 and 2, is characterized in that: described a kind of magnetic drives engine power delivery system can be moved as single cylinder engine, or moves as multi cylinder multimode.

8. a kind of magnetic drives engine power delivery system according to claim 3, is characterized in that: described a kind of magnetic drives engine power delivery system can be moved as single cylinder engine, or moves as multi cylinder multimode.

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