CN110761894A - Two-stroke IC engine - Google Patents
Two-stroke IC engine Download PDFInfo
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- CN110761894A CN110761894A CN201911229381.XA CN201911229381A CN110761894A CN 110761894 A CN110761894 A CN 110761894A CN 201911229381 A CN201911229381 A CN 201911229381A CN 110761894 A CN110761894 A CN 110761894A
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- piston
- air inlet
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- air
- cavity
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 26
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000002000 scavenging effect Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Classifications
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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
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
- F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
-
- 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
-
- 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
-
- 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
- F02F2003/0007—Monolithic pistons; One piece constructions; Casting of pistons
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of internal combustion engines, and discloses a novel two-stroke internal combustion engine. The piston is movably connected with one end of the connecting rod, the other end of the connecting rod is movably connected with a shaft neck of the crankshaft, a piston cavity is arranged in the cylinder, the piston cavity is of a square structure, and the piston is of a cuboid structure which is connected in the piston cavity in a sliding mode; the included angle between the axial center line of the cylinder and the vertical surface is 20-45 degrees; the middle part of cylinder is seted up the air inlet duct and the exhaust duct of coaxial setting, and the gas outlet of air inlet duct all communicates the piston chamber with the air inlet of exhaust duct, and the gas outlet of air inlet duct is less than the air inlet of exhaust duct on horizontal position. When the crank shaft is used for doing work, the crank shaft can rotate about 200 degrees on the circumference, and the working stroke is far larger than that the crank shaft cannot be pushed by 180 degrees in a half-circumference in the prior art, so that the working efficiency is improved, the cost is saved, and the crank shaft is suitable for recommendation.
Description
Technical Field
The invention belongs to the technical field of internal combustion engines, and particularly relates to a novel two-stroke internal combustion engine.
Background
A two-stroke internal combustion engine is one of the internal combustion engines, and refers to an internal combustion engine that completes one working cycle in two strokes. Its working cycle includes intake, compression, combustion expansion and exhaust. The intake air of a two-stroke internal combustion engine is supplied to the cylinder through scavenging ports arranged along the circumference of the cylinder, and the opening and closing of the scavenging ports is controlled by a piston. The working cycle of a two-stroke internal combustion engine is as follows: when the piston moves upwards from the lower dead point, the scavenging port and the exhaust port are both opened, and after the pressure of a fresh charge (air or combustible mixed gas) is increased by the scavenging pump, the fresh charge is pressed into the cylinder by the scavenging port. On one hand, the exhaust gas in the cylinder is cleaned and exhausted from the exhaust port; on the one hand, the cylinder is again filled with a fresh charge. This is the scavenging process. Then, the piston continues to move upwards, the scavenging port is covered firstly, then the exhaust port is closed, and the scavenging process is finished. The piston continues to move upwards again, and the compression process is finished when the mixed gas of the fresh charge and a small amount of non-exhausted waste gas enclosed in the cylinder is compressed to the top dead center. At this time, the internal combustion engine does work externally, and the connecting rod pushes the crankshaft to rotate, so that mechanical work is output. When the piston continues to move downwards to open the exhaust port, the exhaust gas escapes from the exhaust port automatically due to higher pressure, the pressure in the cylinder drops immediately, fresh charge is supplied to clean the exhaust gas when the scavenging port is opened by the piston, and the working cycle is completed when the piston moves to the bottom dead center. The existing two-stroke internal combustion engine has low working efficiency, and the working stroke of the crankshaft on the circumferential surface is difficult to push 180 degrees of a half cycle, so that the efficiency is limited to a great extent.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention aims to provide a novel two-stroke internal combustion engine.
The technical scheme adopted by the invention is as follows:
a novel two-stroke internal combustion engine comprises a crankshaft, a connecting rod and a cylinder, wherein a piston is arranged in the cylinder, the piston is movably connected with one end of the connecting rod, the other end of the connecting rod is movably connected with a shaft neck of the crankshaft, a piston cavity is arranged in the cylinder, the piston cavity is of a square structure, and the piston is of a cuboid structure which is connected in the piston cavity in a sliding mode; the included angle between the axial center line of the cylinder and the vertical surface is 20-45 degrees; the air cylinder is characterized in that an air inlet pipeline and an air outlet pipeline which are coaxially arranged are arranged in the middle of the air cylinder, an air outlet of the air inlet pipeline and an air inlet of the air outlet pipeline are both communicated with the piston cavity, and an air outlet of the air inlet pipeline is lower than an air inlet of the air outlet pipeline in the horizontal position.
It is further preferred that a vertical distance between the air outlet of the air inlet pipe and the inner bottom surface of the piston cavity is smaller than the thickness of the piston, and a vertical distance between the air inlet of the air outlet pipe and the inner bottom surface of the piston cavity is smaller than the thickness of the piston. The piston can be guaranteed to be capable of completely communicating the air inlet pipeline and the exhaust pipeline when moving towards the bottom of the air cylinder, and smooth air inlet and exhaust are guaranteed.
It is further preferred that the vertical distance between the air outlet of the air inlet duct and the outlet of the piston chamber is less than the thickness of the piston, and the vertical distance between the air inlet of the air outlet duct and the outlet of the piston chamber is less than the thickness of the piston. The piston can be ensured to be capable of completely communicating the air inlet pipeline and the exhaust pipeline when moving towards the outlet of the cylinder, and smooth air inlet and exhaust are ensured.
More preferably, the inside of the cylinder around the piston cavity is also provided with a cooling cavity, and the cylinder is provided with a liquid feeding channel and a liquid outlet channel which are communicated with the outside and the cooling cavity; and the air inlet pipeline and the exhaust pipeline both penetrate through the cooling cavity. The liquid feeding channel can be used for feeding cooling liquid for rapid cooling, and the liquid outlet channel can be used for discharging the cooling liquid, so that the integral rapid cooling is realized, the integral safety is improved, and the service life is prolonged; and the air inlet pipeline and the exhaust pipeline both penetrate through the cooling cavity.
More preferably, the number of the cooling cavities is four, the four cooling cavities and the piston cavities are arranged in a one-to-one correspondence mode, and each cooling cavity is communicated with a liquid feeding channel and a liquid outlet channel. The shape of the piston cavity is considered, the volume requirement of the cylinder can be reduced, the cost is saved, and each cooling cavity is communicated with a liquid feeding channel and a liquid outlet channel.
It is further preferred that the axis of the intake duct and the axis of the exhaust duct are both perpendicular to the axial centre line of the cylinder. Therefore, the axial lead of the air inlet pipeline and the axial lead of the exhaust pipeline are also vertical to the piston at the same time, and the air inlet and the exhaust are ensured to be carried out and disconnected at the same time.
It is further preferred that the angle between the axial centre line of the cylinder and the vertical is 20 °.
It is still further preferable that a spark plug is provided at the bottom of the cylinder.
The invention has the beneficial effects that:
the invention has simple structure, the working cycle mode is the same as that of the existing two-stroke internal combustion engine, the operation is convenient, the piston with the cuboid structure can better serve the work of the inclined cylinder and always serves the pushing stroke with farther work stroke on the circumference; in addition, an air inlet valve and an air outlet valve are not designed, a crankcase where a crankshaft is located serves as an air compression chamber, a piston presses air downwards, and an air outlet of an air inlet pipeline is lower than an air inlet of an air exhaust pipeline in the horizontal position, so that when air enters the air inlet pipeline, the air exhaust action is past, new air enters the air inlet pipeline directly to drive waste gas, the piston is also a sliding block and is also an air inlet and exhaust valve, the air can be automatically fed and exhausted, and a mature automatic air inlet and exhaust structure is formed; the included angle between the axial center line of the combined cylinder and the vertical surface is 20-45 degrees, meanwhile, the crankshaft can rotate about 200 degrees on the circumference when a worker works, and the included angle is far larger than that the worker stroke of 180 degrees of a half-cycle can not be pushed in the prior art, so that the worker working efficiency is improved, the cost is saved, and the combined cylinder is suitable for recommendation.
Drawings
FIG. 1 is a schematic view of the present invention in the configuration when air is admitted;
FIG. 2 is a schematic view of the piston of the present invention moving to the bottom of the piston chamber;
FIG. 3 is a schematic view of the present invention in its construction;
FIG. 4 is a schematic view of the present invention in the configuration when air is admitted;
fig. 5 is a cross-sectional view of the cylinder of the present invention.
In the figure: 1-a crankshaft; 2-a connecting rod; 3-a piston; 4-a cylinder; 5-a piston cavity; 6-an air inlet pipeline; 7-an exhaust duct; 8-a cooling chamber; 9-a liquid feeding channel; 10-a liquid outlet channel; 11-spark plug.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the embodiments or the description in the prior art, it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
The technical solution provided by the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
In some instances, some embodiments are not described or not in detail, as they are conventional or customary in the art.
Furthermore, the technical features described herein, or the steps of all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments, in addition to the mutually exclusive features and/or steps. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Any order in the drawings and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated to be required.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The terms "connected" and "coupled" when used in this application, encompass both direct and indirect connections (and couplings) where appropriate and where not necessary contradictory.
The first embodiment is as follows:
as shown in fig. 1-5, the present embodiment provides a novel two-stroke internal combustion engine, including a crankshaft 1, a connecting rod 2, and a cylinder 4 having a piston 3 inside, where the piston 3 is movably connected to one end of the connecting rod 2, the other end of the connecting rod 2 is movably connected to a journal of the crankshaft 1, a piston cavity 5 is provided in the cylinder 4, the piston cavity 5 is a square structure, and the piston 3 is a cuboid structure slidably connected to the piston cavity 5; the included angle between the axial center line of the cylinder 4 and the vertical surface is 20-45 degrees; the air inlet pipe 6 and the exhaust duct 7 that coaxial setting were seted up at the middle part of cylinder 4 make things convenient for piston 3 to plug up air inlet pipe 6 and exhaust duct 7 simultaneously at the in-process of motion like this, use as a natural air inlet and exhaust valve, and the gas outlet of air inlet pipe 6 all communicates piston chamber 5 with the air inlet of exhaust duct 7, and the gas outlet of air inlet pipe 6 is less than the air inlet of exhaust duct 7 on horizontal position. The crankshaft 1 is disposed in the case of the crankshaft 1 as in the prior art.
In this embodiment, it should be further described that a vertical distance between the air outlet of the air inlet duct 6 and the inner bottom surface of the piston cavity 5 is smaller than a thickness of the piston 3, and a vertical distance between the air inlet of the air outlet duct 7 and the inner bottom surface of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet duct 6 and the air outlet duct 7 can be completely opened when the piston 3 moves towards the bottom of the cylinder 4, and smooth air inlet and air exhaust is ensured. It is further noted that the vertical distance between the air outlet of the air inlet pipe 6 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, and the vertical distance between the air inlet of the air outlet pipe 7 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet pipe 6 and the air outlet pipe 7 can be completely communicated when the piston 3 moves towards the outlet of the cylinder 4, and smooth air inlet and exhaust can be ensured.
The invention has simple structure, the working cycle mode is the same as that of the existing two-stroke internal combustion engine, the operation is convenient, the piston 3 with the cuboid structure can better serve the work of the inclined cylinder 4 and always serves the pushing stroke with farther work stroke on the circumference; in addition, an air inlet valve and an air outlet valve are not designed, the box of the crankshaft 1 where the crankshaft 1 is located serves as an air compression chamber, the piston 3 compresses air, and the air outlet of the air inlet pipeline 6 is lower than the air inlet of the air outlet pipeline 7 in the horizontal position, so that when air enters the air inlet pipeline 6, the air exhaust action is already performed, new air enters directly to drive waste gas, the piston 3 is also a sliding block and is also an air inlet and exhaust valve, the air can be automatically fed and exhausted, and a mature automatic air inlet and exhaust structure is formed; the included angle between the axial center line of the combined cylinder 4 and the vertical surface is 20-45 degrees, meanwhile, the crankshaft 1 can rotate about 200 degrees on the circumference during the working process, and the included angle is far larger than that the working stroke of 180 degrees of a half-cycle can not be pushed in the prior art, so that the working efficiency is improved, the cost is saved, and the combined cylinder is suitable for recommendation.
Example two:
as shown in fig. 1-5, the present embodiment provides a novel two-stroke internal combustion engine, including a crankshaft 1, a connecting rod 2, and a cylinder 4 having a piston 3 inside, where the piston 3 is movably connected to one end of the connecting rod 2, the other end of the connecting rod 2 is movably connected to a journal of the crankshaft 1, a piston cavity 5 is provided in the cylinder 4, the piston cavity 5 is a square structure, and the piston 3 is a cuboid structure slidably connected to the piston cavity 5; the included angle between the axial center line of the cylinder 4 and the vertical surface is 20 degrees to 45 degrees, 20 degrees, 30 degrees, 45 degrees and the like, and is not particularly limited; the air inlet pipe 6 and the exhaust duct 7 that coaxial setting were seted up at the middle part of cylinder 4 make things convenient for piston 3 to plug up air inlet pipe 6 and exhaust duct 7 simultaneously at the in-process of motion like this, use as a natural air inlet and exhaust valve, and the gas outlet of air inlet pipe 6 all communicates piston chamber 5 with the air inlet of exhaust duct 7, and the gas outlet of air inlet pipe 6 is less than the air inlet of exhaust duct 7 on horizontal position. The crankshaft 1 is disposed in the case of the crankshaft 1 as in the prior art.
In this embodiment, it should be further described that a vertical distance between the air outlet of the air inlet duct 6 and the inner bottom surface of the piston cavity 5 is smaller than a thickness of the piston 3, and a vertical distance between the air inlet of the air outlet duct 7 and the inner bottom surface of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet duct 6 and the air outlet duct 7 can be completely opened when the piston 3 moves towards the bottom of the cylinder 4, and smooth air inlet and air exhaust is ensured. It is further noted that the vertical distance between the air outlet of the air inlet pipe 6 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, and the vertical distance between the air inlet of the air outlet pipe 7 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet pipe 6 and the air outlet pipe 7 can be completely communicated when the piston 3 moves towards the outlet of the cylinder 4, and smooth air inlet and exhaust can be ensured.
The piston 3 with the cuboid structure can serve better for the inclined cylinder 4 and always serves for the pushing stroke with farther working stroke on the circumference; in addition, an air inlet valve and an air outlet valve are not designed, the box of the crankshaft 1 where the crankshaft 1 is located serves as an air compression chamber, the piston 3 compresses air, and the air outlet of the air inlet pipeline 6 is lower than the air inlet of the air outlet pipeline 7 in the horizontal position, so that when air enters the air inlet pipeline 6, the air exhaust action is already performed, new air enters directly to drive waste gas, the piston 3 is also a sliding block and is also an air inlet and exhaust valve, the air can be automatically fed and exhausted, and a mature automatic air inlet and exhaust structure is formed; the included angle between the axial center line of the combined cylinder 4 and the vertical surface is 20-45 degrees, meanwhile, the crankshaft 1 can rotate about 200 degrees on the circumference during the working process, and the included angle is far larger than that the working stroke of 180 degrees of a half-cycle can not be pushed in the prior art, so that the working efficiency is improved, the cost is saved, and the combined cylinder is suitable for recommendation.
In this embodiment, it should be further described that a cooling cavity 8 is further disposed inside the cylinder 4 around the piston cavity 5, a liquid feeding channel 9 and a liquid outlet channel 10 are disposed on the cylinder 4 and communicate the outside with the cooling cavity 8, the cooling liquid can be fed through the liquid feeding channel 9 for rapid cooling, and the cooling liquid can be discharged through the liquid outlet channel 10, so that the rapid cooling of the whole body is realized, the safety and the service life are improved, and the piston is capable of being used for a long time; the inlet duct 6 and the outlet duct 7 both extend through the cooling chamber 8. Furthermore, the number of the cooling cavities 8 is four, the four cooling cavities 8 are arranged in one-to-one correspondence with the piston cavities 5, so that the size requirement of the cylinder can be reduced by considering the shape of the piston cavities, the cost is saved, and each cooling cavity 8 is communicated with a liquid feeding channel 9 and a liquid outlet channel 10.
Example three:
as shown in fig. 1-5, the present embodiment provides a novel two-stroke internal combustion engine, including a crankshaft 1, a connecting rod 2, and a cylinder 4 having a piston 3 inside, where the piston 3 is movably connected to one end of the connecting rod 2, the other end of the connecting rod 2 is movably connected to a journal of the crankshaft 1, a piston cavity 5 is provided in the cylinder 4, the piston cavity 5 is a square structure, and the piston 3 is a cuboid structure slidably connected to the piston cavity 5; the included angle between the axial center line of the cylinder 4 and the vertical surface is 20 degrees; the air inlet pipe 6 and the exhaust duct 7 that coaxial setting were seted up at the middle part of cylinder 4 make things convenient for piston 3 to plug up air inlet pipe 6 and exhaust duct 7 simultaneously at the in-process of motion like this, use as a natural air inlet and exhaust valve, and the gas outlet of air inlet pipe 6 all communicates piston chamber 5 with the air inlet of exhaust duct 7, and the gas outlet of air inlet pipe 6 is less than the air inlet of exhaust duct 7 on horizontal position. The crankshaft 1 is disposed in the case of the crankshaft 1 as in the prior art. It should also be noted that the bottom of the cylinder 4 is provided with a spark plug, as in the prior art, for ignition prior to operation.
In this embodiment, it should be further described that a vertical distance between the air outlet of the air inlet duct 6 and the inner bottom surface of the piston cavity 5 is smaller than a thickness of the piston 3, and a vertical distance between the air inlet of the air outlet duct 7 and the inner bottom surface of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet duct 6 and the air outlet duct 7 can be completely opened when the piston 3 moves towards the bottom of the cylinder 4, and smooth air inlet and air exhaust is ensured. It is further noted that the vertical distance between the air outlet of the air inlet pipe 6 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, and the vertical distance between the air inlet of the air outlet pipe 7 and the outlet of the piston cavity 5 is smaller than the thickness of the piston 3, so that the air inlet pipe 6 and the air outlet pipe 7 can be completely communicated when the piston 3 moves towards the outlet of the cylinder 4, and smooth air inlet and exhaust can be ensured.
The piston 3 with the cuboid structure can serve better for the inclined cylinder 4 and always serves for the pushing stroke with farther working stroke on the circumference; in addition, an air inlet valve and an air outlet valve are not designed, the box of the crankshaft 1 where the crankshaft 1 is located serves as an air compression chamber, the piston 3 compresses air, and the air outlet of the air inlet pipeline 6 is lower than the air inlet of the air outlet pipeline 7 in the horizontal position, so that when air enters the air inlet pipeline 6, the air exhaust action is already performed, new air enters directly to drive waste gas, the piston 3 is also a sliding block and is also an air inlet and exhaust valve, the air can be automatically fed and exhausted, and a mature automatic air inlet and exhaust structure is formed; the included angle between the axial center line of the combined cylinder 4 and the vertical surface is 20-45 degrees, meanwhile, the crankshaft 1 can rotate about 200 degrees on the circumference during the working process, and the included angle is far larger than that the working stroke of 180 degrees of a half-cycle can not be pushed in the prior art, so that the working efficiency is improved, the cost is saved, and the combined cylinder is suitable for recommendation.
In this embodiment, it should be further described that a cooling cavity 8 is further disposed inside the cylinder 4 around the piston cavity 5, a liquid feeding channel 9 and a liquid outlet channel 10 are disposed on the cylinder 4 and communicate the outside with the cooling cavity 8, the cooling liquid can be fed through the liquid feeding channel 9 for rapid cooling, and the cooling liquid can be discharged through the liquid outlet channel 10, so that the rapid cooling of the whole body is realized, the safety and the service life are improved, and the piston is capable of being used for a long time; the inlet duct 6 and the outlet duct 7 both extend through the cooling chamber 8. Furthermore, the number of the cooling cavities 8 is four, the four cooling cavities 8 are arranged in one-to-one correspondence with the piston cavities 5, so that the size requirement of the cylinder can be reduced by considering the shape of the piston cavities, the cost is saved, and each cooling cavity 8 is communicated with a liquid feeding channel 9 and a liquid outlet channel 10.
In this embodiment, it should be further noted that the axial line of the intake duct 6 and the axial line of the exhaust duct 7 are perpendicular to the axial center line of the cylinder 4. Therefore, the axial lead of the air inlet pipeline 6 and the axial lead of the exhaust pipeline 7 are also vertical to the piston at the same time, and the air inlet and the exhaust are ensured to be carried out and disconnected at the same time.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (8)
1. The utility model provides a novel two-stroke internal-combustion engine, includes bent axle, connecting rod and the inside cylinder that is provided with the piston, the one end swing joint of piston and connecting rod, the other end of connecting rod and the axle journal swing joint of bent axle, its characterized in that: a piston cavity is arranged in the cylinder, the piston cavity is of a square structure, and the piston is of a cuboid structure which is connected in the piston cavity in a sliding manner; the included angle between the axial center line of the cylinder and the vertical surface is 20-45 degrees; the air cylinder is characterized in that an air inlet pipeline and an air outlet pipeline which are coaxially arranged are arranged in the middle of the air cylinder, an air outlet of the air inlet pipeline and an air inlet of the air outlet pipeline are both communicated with the piston cavity, and an air outlet of the air inlet pipeline is lower than an air inlet of the air outlet pipeline in the horizontal position.
2. The new two-stroke internal combustion engine as set forth in claim 1 wherein: the vertical distance between the air outlet of the air inlet pipeline and the inner bottom surface of the piston cavity is smaller than the thickness of the piston, and the vertical distance between the air inlet of the air outlet pipeline and the inner bottom surface of the piston cavity is smaller than the thickness of the piston.
3. The new two-stroke internal combustion engine as set forth in claim 2 wherein: the vertical distance between the air outlet of the air inlet pipeline and the outlet of the piston cavity is smaller than the thickness of the piston, and the vertical distance between the air inlet of the air outlet pipeline and the outlet of the piston cavity is smaller than the thickness of the piston.
4. A novel two-stroke internal combustion engine as set forth in claim 3 wherein: a cooling cavity is also arranged in the cylinder around the piston cavity, and a liquid feeding channel and a liquid outlet channel which are communicated with the outside and the cooling cavity are arranged on the cylinder; and the air inlet pipeline and the exhaust pipeline both penetrate through the cooling cavity.
5. The new two-stroke internal combustion engine as set forth in claim 4 wherein: the cooling cavity is provided with four, and four cooling cavities and piston chamber one-to-one set up, and every cooling cavity all communicates liquid feeding passageway and liquid outlet channel.
6. A novel two-stroke internal combustion engine as set forth in claim 3 wherein: the axial lead of the air inlet pipeline and the axial lead of the exhaust pipeline are both perpendicular to the axial center line of the cylinder.
7. The novel two-stroke internal combustion engine as set forth in any one of claims 1-6, wherein: the included angle between the axial center line of the cylinder and the vertical surface is 20 degrees.
8. The new two-stroke internal combustion engine as set forth in claim 1 wherein: and a spark plug is arranged at the bottom of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229381.XA CN110761894A (en) | 2019-12-04 | 2019-12-04 | Two-stroke IC engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229381.XA CN110761894A (en) | 2019-12-04 | 2019-12-04 | Two-stroke IC engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110761894A true CN110761894A (en) | 2020-02-07 |
Family
ID=69341254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911229381.XA Pending CN110761894A (en) | 2019-12-04 | 2019-12-04 | Two-stroke IC engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110761894A (en) |
-
2019
- 2019-12-04 CN CN201911229381.XA patent/CN110761894A/en active Pending
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