CN210049962U - Self-locking energy-saving engine with continuously variable piston height - Google Patents
Self-locking energy-saving engine with continuously variable piston height Download PDFInfo
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- CN210049962U CN210049962U CN201920824532.5U CN201920824532U CN210049962U CN 210049962 U CN210049962 U CN 210049962U CN 201920824532 U CN201920824532 U CN 201920824532U CN 210049962 U CN210049962 U CN 210049962U
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- 238000000034 method Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 65
- 238000006073 displacement reaction Methods 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 14
- 239000010705 motor oil Substances 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
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- 230000001174 ascending effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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Abstract
The utility model discloses an energy-conserving engine of highly continuous variable auto-lock of piston, including engine system and piston governing system, engine system comprises cylinder head, automatically controlled sprayer, cylinder block, main piston, connecting rod, crank and oil pump, piston governing system comprises vice piston, auto-lock solenoid valve, return spring, controller, pressure sensor and temperature sensor, the inside cover of main piston is equipped with vice piston the return solenoid valve with return spring, main piston with be connected with on the cylindrical side wall between the vice piston auto-lock solenoid valve, the lower part of main piston is provided with oil inlet and oil-out. The utility model discloses simple structure, adjustment method are simple and easy reliable, can satisfy the different rotational speeds of engine, different load operating mode in real time to the requirement of discharge capacity, compression ratio, in-cylinder pressure, temperature in the cylinder, and the range of application is wide, has good economic benefits and reduces discharging effect after promoting.
Description
Technical Field
The utility model relates to an energy-saving engine, concretely relates to energy-saving engine of highly continuous variable auto-lock of piston.
Background
The piston connecting rod group of the engine comprises a piston, a piston pin, a connecting rod and the like, wherein the piston is connected with a small end of the connecting rod through the piston pin, a large end of the connecting rod is connected with a crankshaft through a crank pin, and the linear reciprocating motion of the piston is converted into the rotary motion of the crankshaft through the connecting rod. Once the traditional piston connecting rod group is well assembled, the structural size of the traditional piston connecting rod group is invariable under different engine working conditions. The engine adopting the structure has the advantages that the discharge capacity, the compression ratio and the like of each cycle engine run according to the design values of the engine, and the parameters of the discharge capacity, the compression ratio, the pressure in the cylinder, the temperature in the cylinder and the like of the engine can not be adaptively controlled according to various complex working conditions of the engine, so that the combustion and the discharge of the engine can be optimized in real time and on line.
Upon search of prior art documents and patents, the invention granted under the patent application No. 201410368216.3 entitled "variable compression ratio engine with variable compression ratio" includes a piston, a piston pin, a cylinder, an oil storage chamber, a variable piston, a connecting rod, an eccentric cam, a crank pin, a crank arm and a crankshaft. Raising the compression ratio of the engine: when hydraulic pressure is supplied to the reservoir, the variable piston moves downward, the connecting rod rotates the eccentric cam counterclockwise about the crankpin, and the eccentric cam moves the connecting rod and the piston downward by the cam pin. Reducing the compression ratio of the engine: when the supply of the hydraulic pressure to the reservoir tank is stopped, the variable piston moves upward, the connecting rod rotates the eccentric cam clockwise about the crankpin, and the eccentric cam moves the connecting rod and the piston upward by the cam pin.
Traditional piston connecting rod group, crank link mechanism have two tie points: the piston is connected with the small end of the connecting rod through a piston pin, and the large end of the connecting rod is connected with the crankshaft through a crank pin. The invention has six connection points: the piston is connected with one end of a connecting rod through a piston pin, and the other end of the connecting rod is connected with one end of a crank arm through a crank pin; the other end of the crank arm is connected with the crankshaft; one end of the connecting rod is connected with the variable piston, and the other end of the connecting rod is connected with the eccentric cam. The invention changes the connecting mode of the traditional piston connecting rod set and the crank connecting rod mechanism, compared with the traditional structure, the invention has the advantages of complex structure, addition of the traditional piston connecting rod set and the traditional crank connecting rod mechanism, components such as an oil storage chamber, a variable piston, a connecting rod, an eccentric cam, a crank pin, an oil pump, a control valve and the like, additional driving of an oil pump device, hydraulic oil and the like, complex mechanism, higher cost and unsuitability for large-batch reconstruction of the traditional engine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the energy-saving engine with the continuously variable and self-locking piston height overcomes the defects in the prior art, is simple in structure, continuously variable and self-locking piston height, can adaptively control parameters such as the discharge capacity, the compression ratio, the pressure in the cylinder, the temperature in the cylinder and the like of the engine according to the change of the working condition of the engine, optimizes the state in the cylinder of the engine in real time on line, and improves the performance of the engine under various complex working conditions.
The utility model discloses a technical scheme who solves technical problem and take is: the energy-saving engine comprises an engine system and a piston adjusting system, wherein the engine system consists of a cylinder cover, an electric control oil injector, a cylinder body, a main piston, a connecting rod, a crank and an oil pump, the upper end of the cylinder body is connected with the cylinder cover, the electric control oil injector is arranged at the upper end of the cylinder cover, the main piston is arranged in the cylinder body, the main piston is connected with one end of the connecting rod, the other end of the connecting rod is connected with the crank to convert the linear reciprocating motion of the main piston into the rotary motion of the crank, an oil inlet and an oil outlet are arranged on two sides of the lower end of the main piston, and the oil inlet is connected with the oil pump through a pipeline.
The piston adjusting system comprises an auxiliary piston, a self-locking electromagnetic valve, a return spring, a controller, a pressure sensor and a temperature sensor, wherein the auxiliary piston is sleeved in the main piston, the auxiliary piston is connected with the cylindrical side wall between the main piston through the self-locking electromagnetic valve, the lower end of the auxiliary piston is connected with the return electromagnetic valve, the return spring is connected between the return electromagnetic valve and the main piston, the pressure sensor and the temperature sensor are arranged on the outer wall of the cylinder body, and the controller is respectively connected with the electric control oil injector, the self-locking electromagnetic valve, the return electromagnetic valve, the oil inlet, the oil outlet, the pressure sensor and the temperature sensor through control circuits.
The two ends of the cylinder cover are provided with an air inlet and an air outlet, the air inlet is connected with an air inlet valve, the air outlet is connected with an exhaust valve, external fresh air enters a combustion chamber in the cylinder body through the air inlet valve and the cylinder cover to be combusted, and combusted waste gas is exhausted to the outside through the exhaust valve.
A filter is connected between the oil pump and the bottom of the cylinder block through a pipeline, the engine oil in the oil pan of the cylinder block is filtered by the filter and pressurized by the oil pump, the engine oil with certain pressure and certain flow is conveyed to the oil inlet, and when the oil inlet is opened, the engine oil enters the main piston to push the auxiliary piston to move upwards, so that the height of the piston is increased; after the oil outlet is opened, under the action of the return electromagnetic valve and the return spring, engine oil in the main piston flows back to the inside of an oil pan of the cylinder body through the oil outlet, the auxiliary piston moves downwards, and the height of the piston is reduced.
The secondary piston may be one, two or more stages.
The utility model has the advantages that:
1) the utility model can realize the continuous variable displacement according to the requirement of the working condition of the engine, adopts a large displacement mode under the working condition of high speed and large load, and increases the power and the torque of the engine; and a small displacement mode is adopted under the working conditions of low speed and small load, so that the energy is saved, and the fuel economy of the engine is improved.
2) The utility model can realize the continuous variable compression ratio according to the requirement of the working condition of the engine, and adopts the high compression ratio in the case of small displacement, thereby achieving the power of the engine with large displacement; when the thermal load and the mechanical load are overlarge, a small compression ratio is adopted, and the performance of the engine under various working conditions is improved.
3) The utility model discloses no matter the optional position of piston operation in the cylinder, all can stretch out or retract through the piston in succession, realize that the piston height is changeable in succession, and the cylinder internal pressure is variable, and the temperature is variable in the cylinder.
4) The utility model discloses simple structure only changes piston structure to piston governing system and engine lubrication system sharing filter and oil pump, the regulation method is simple and easy reliable, can fully satisfy different operating modes to the requirement of engine displacement, compression ratio, in-cylinder pressure, temperature isoparametric in the cylinder, and the range of application is wide, has good economic benefits and reduces discharging effect after promoting.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the embodiments:
referring to fig. 1, in the figure, an inlet valve 1, a cylinder cover 2, an electric control fuel injector 3, an exhaust valve 4, an air cylinder 5, a main piston 6, an auxiliary piston 7, a self-locking electromagnetic valve 8, a return electromagnetic valve 9, a return spring 10, an oil inlet 11, an oil outlet 12, a connecting rod 13, a crank 14, an oil pump 15, a controller 16, a pressure sensor 17, a temperature sensor 18 and a filter 19 are arranged, arrows in the figure show the gas flow direction, and dotted lines show control lines.
Example (b): the utility model provides an energy-conserving engine of piston height continuous variable auto-lock, including engine system and piston governing system, engine system comprises cylinder head 2, automatically controlled sprayer 3, cylinder block 5, main piston 6, connecting rod 13, crank 14 and oil pump 15, cylinder head 2 is connected to the upper end of cylinder block 5, the upper end of cylinder head 2 sets up automatically controlled sprayer 3, the inside of cylinder block 5 sets up main piston 6, main piston 6 is connected with one end of connecting rod 13, the other end of connecting rod 13 is connected with crank 14, change the straight reciprocating motion of main piston 6 into the rotary motion of crank 14, the lower extreme both sides of main piston 6 are provided with oil inlet 11 and oil-out 12, oil inlet 11 passes through pipe connection oil pump 15.
The piston adjusting system is composed of an auxiliary piston 7, a self-locking electromagnetic valve 8, a return electromagnetic valve 9, a return spring 10, a controller 16, a pressure sensor 17 and a temperature sensor 18, wherein the auxiliary piston 7 is sleeved inside the main piston 6, the self-locking electromagnetic valve 8 is connected to the cylindrical side wall between the auxiliary piston 7 and the main piston 6, the return electromagnetic valve 9 is connected to the lower end of the auxiliary piston 7, the return spring 10 is connected between the return electromagnetic valve 9 and the main piston 6, the pressure sensor 17 and the temperature sensor 18 are arranged on the outer wall of the cylinder body 5, and the controller 16 is respectively connected with the electric control fuel injector 3, the self-locking electromagnetic valve 8, the return electromagnetic valve 9, the oil inlet 11, the oil outlet 12, the pressure sensor 17 and the.
Air inlets and air outlets are arranged at two ends of the cylinder cover 2, the air inlets are connected with the air inlet valve 1, the air outlets are connected with the exhaust valve 4, external fresh air enters the combustion chamber inside the cylinder body 5 through the air inlet valve 1 and the cylinder cover 2 to be combusted, and combusted waste gas is exhausted to the outside through the exhaust valve 4.
A filter 19 is connected between the oil pump 15 and the bottom of the cylinder block 5 through a pipeline, the oil in the oil pan of the cylinder block 5 is filtered through the filter 19, the oil pump 15 pressurizes, the oil with certain pressure and certain flow is conveyed to the oil inlet 11, when the oil inlet 11 is opened, the oil enters the main piston 6 to push the auxiliary piston 7 to move upwards, and the piston height is increased; after the oil outlet 12 is opened, under the action of the return electromagnetic valve 9 and the return spring 10, the engine oil in the main piston 6 flows back to the inside of the oil pan of the cylinder block 5 through the oil outlet 12, the auxiliary piston 7 moves downwards, and the piston height is reduced.
The secondary piston 7 may be of one, two or more stages.
The working principle is as follows: working condition 1: when the engine is in a low-load working condition, a high compression ratio mode is adopted, fuel is saved, and the fuel economy is improved. When the primary piston 6 moves from top dead center to bottom dead center for an "intake stroke", the piston height adjustment system does not operate. When the main piston 6 moves from the bottom dead center to the top dead center for a compression stroke, the controller 16 sends an instruction to the self-locking electromagnetic valve 8 and the oil inlet 11, the self-locking electromagnetic valve 8 is electrified and separated, and the main piston 6 and the auxiliary piston 7 are in a free state and can generate relative vertical displacement. The oil inlet 11 is opened, the oil pump 15 pressurizes the engine oil in the oil pan of the cylinder block 5, the engine oil enters the main piston 6 through the oil inlet 11, when the upward hydraulic pressure in the main piston 6 is greater than the downward spring force of the return spring 10, the hydraulic pressure overcomes the spring force to push the auxiliary piston 7 to move upwards, the height of the piston is increased, the volume of a combustion chamber is reduced, the compression ratio is increased, the pressure sensor 17 and the temperature sensor 18 detect the temperature and the pressure in the cylinder block 5, when the compression ratio is increased to a required value, the oil inlet 11 is closed, the self-locking electromagnetic valve 8 is powered off and combined, the main piston 6 and the auxiliary piston 7 are in a locking state.
Working condition 2: when the engine is in a high-load working condition, a middle compression ratio mode is adopted, the combustion temperature and the combustion pressure are controlled, and the emission of nitrogen oxides, mechanical load and thermal load are reduced. When the main piston 6 moves from the top dead center to the bottom dead center for 'an intake stroke', the piston height adjusting system does not work, the volume of gas swept by the piston is unchanged, and the total volume of the cylinder is unchanged. When the main piston 6 moves from the bottom dead center to the top dead center for 'compression stroke', the controller 16 sends an instruction to the self-locking electromagnetic valve 8, the return electromagnetic valve 9 and the oil outlet 12, the self-locking electromagnetic valve 8 is electrically separated, and the main piston 6 and the auxiliary piston 7 are in a free state and can generate relative displacement up and down. When the upward hydraulic pressure in the main piston 6 is smaller than the resultant force of the downward electromagnetic force of the return electromagnetic valve 9 and the spring force of the return spring 10, the auxiliary piston 7 moves downward under the action of the downward resultant force, the height of the piston is reduced, the volume of a combustion chamber is increased, the compression ratio is reduced, the pressure sensor 17 and the temperature sensor 18 detect the temperature and the pressure in the cylinder body 5, when the compression ratio is reduced to a required value, the oil outlet 12 is closed, the return electromagnetic valve 9 is powered off, the self-locking electromagnetic valve 8 is powered off and combined, the main piston 6 and the auxiliary piston 7 are in a locked state, and vertical relative displacement cannot occur.
Working condition 3: when the engine is in a cold starting working condition, the initial temperature in the cylinder block 5 is lower, the starting rotating speed of the engine is lower, the pressure and the temperature in the cylinder block 5 are far lower than normal values, the ignition performance is deteriorated, the emission is deteriorated, and a 'variable displacement and compression ratio' dual mode is adopted. When the main piston 6 starts to perform the "intake stroke" at the top dead center, the controller 16 sends an instruction to the self-locking solenoid valve 8, the return solenoid valve 9 and the oil outlet 12, the self-locking solenoid valve 8 is electrically separated, and the main piston 6 and the auxiliary piston 7 are in a free state and can perform relative vertical displacement. When the upward hydraulic pressure in the main piston 6 is smaller than the resultant force of the electromagnetic force of the downward return electromagnetic valve 9 and the spring force of the return spring 10, the auxiliary piston 7 moves downwards, the height of the piston is reduced, the total volume of the cylinder is increased, when the required value is increased, the oil outlet 12 is closed, the return electromagnetic valve 9 is powered off, the self-locking electromagnetic valve 8 is powered off and combined, the main piston 6 and the auxiliary piston 7 are in a locking state, and relative displacement up and down cannot occur. When the main piston 6 moves from the top dead center to the bottom dead center for an intake stroke, the total volume of the cylinder is increased, the displacement is increased, the vacuum degree in the cylinder is increased, and the intake air amount is increased.
When the main piston 6 starts at the bottom dead center compression stroke, the controller 16 sends a command to the self-locking electromagnetic valve 8 and the oil inlet 11. The self-locking electromagnetic valve 8 is electrified and separated, and the main piston 6 and the auxiliary piston 7 are in a free state and can generate relative displacement up and down. The oil inlet 11 is opened, the oil pump 15 pressurizes the engine oil in the oil pan, enter the main piston 6 through the oil inlet 11, when the inside ascending hydraulic pressure of the main piston 6 is greater than the downward spring force of the return spring 10, the hydraulic pressure overcomes the spring force and pushes the auxiliary piston 7 to move upwards, the piston height is increased, the volume of the combustion chamber is reduced, the compression ratio is increased, the pressure sensor 17 and the temperature sensor 18 detect the temperature and the pressure inside the cylinder block 5, when the temperature and the pressure are increased to required values, the oil inlet 11 is closed, the self-locking electromagnetic valve 8 is powered off and combined, the main piston 6 and the auxiliary piston 7 are in a locking state, and the vertical relative displacement cannot occur.
Working condition 4: when the engine is in a combustion working condition, the pressure sensor 17 and the temperature sensor 18 detect the pressure and the temperature inside the cylinder block 5 before ignition in real time, if the pressure and the temperature inside the cylinder block 5 are lower than normal values, the 'stagnation period' is long, the combustion pressure and the pressure rise rate after ignition are high, the impact load on moving parts is large, and the engine works violently. When the engine enters a real-time adjusting mode, the controller 16 sends an instruction to the self-locking electromagnetic valve 8 and the oil inlet 11. The self-locking electromagnetic valve 8 is electrified and separated, and the main piston 6 and the auxiliary piston 7 are in a free state and can generate relative displacement up and down. The oil inlet 11 is opened, the oil pump 15 pressurizes the engine oil in the oil pan of the cylinder block 5, the engine oil enters the main piston 6 through the oil inlet 11, when the upward hydraulic pressure in the main piston 6 is greater than the downward spring force of the return spring 10, the hydraulic pressure overcomes the spring force to push the auxiliary piston 7 to move upwards, the height of the piston is increased, the volume of a combustion chamber is reduced, combustion gas is compressed, the temperature and the pressure are increased, the 'combustion lag phase' is shortened, and the work of an engine is softened. When the combustion temperature and the combustion pressure are increased to required values, the oil inlet 11 is closed, the self-locking electromagnetic valve 8 is powered off and combined, the main piston 6 and the auxiliary piston 7 are in a locking state, and relative displacement from top to bottom cannot occur.
The utility model discloses simple structure can be according to the change of operating modes such as engine high low-load, cold start, and the discharge capacity of self-adaptation accuse engine, compression ratio, in-cylinder pressure, the cylinder temperature isoparametric, and adjusting method is simple, reliable operation and auto-lock can optimize the performance of engine under various operating modes in real time, and the range of application is wide, has better economic benefits and energy-conserving effect.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an energy-conserving engine of piston height continuous variable auto-lock, includes engine system and piston governing system, its characterized in that: the engine system comprises a cylinder cover (2), an electric control oil injector (3), a cylinder body (5), a main piston (6), a connecting rod (13), a crank (14) and an oil pump (15), wherein the upper end of the cylinder body (5) is connected with the cylinder cover (2), the electric control oil injector (3) is arranged at the upper end of the cylinder cover (2), the main piston (6) is arranged in the cylinder body (5), the main piston (6) is connected with one end of the connecting rod (13), the other end of the connecting rod (13) is connected with the crank (14), an oil inlet (11) and an oil outlet (12) are arranged on two sides of the lower end of the main piston (6), and the oil inlet (11) is connected with the oil pump (15) through a pipeline;
the piston adjusting system is composed of an auxiliary piston (7), a self-locking electromagnetic valve (8), a return electromagnetic valve (9), a return spring (10), a controller (16), a pressure sensor (17) and a temperature sensor (18), wherein the auxiliary piston (7) is sleeved inside the main piston (6), the self-locking electromagnetic valve (8) is connected to a cylindrical side wall between the auxiliary piston (7) and the main piston (6), the return electromagnetic valve (9) is connected to the lower end of the auxiliary piston (7), the return spring (10) is connected between the return electromagnetic valve (9) and the main piston (6), the pressure sensor (17) and the temperature sensor (18) are arranged on the outer wall of the cylinder body (5), and the controller (16) is respectively connected with the electric control fuel injector (3), the self-locking electromagnetic valve (8) through control lines, The return electromagnetic valve (9), the oil inlet (11), the oil outlet (12), the pressure sensor (17) and the temperature sensor (18) are connected.
2. The piston height continuously variable self-locking energy-saving engine according to claim 1, characterized in that: and the two ends of the cylinder cover (2) are provided with an air inlet and an air outlet, the air inlet is connected with the air inlet valve (1), and the air outlet is connected with the exhaust valve (4).
3. The piston height continuously variable self-locking energy-saving engine according to claim 1, characterized in that: and a filter (19) is connected between the oil pump (15) and the bottom of the cylinder body (5) through a pipeline.
4. The piston height continuously variable self-locking energy-saving engine according to claim 1, characterized in that: the auxiliary piston (7) can adopt one stage, two stages or multiple stages.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920824532.5U CN210049962U (en) | 2019-06-03 | 2019-06-03 | Self-locking energy-saving engine with continuously variable piston height |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920824532.5U CN210049962U (en) | 2019-06-03 | 2019-06-03 | Self-locking energy-saving engine with continuously variable piston height |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118126A (en) * | 2019-06-03 | 2019-08-13 | 郑州航空工业管理学院 | The self-locking energy-saving engine of depth pistion continuous variable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118126A (en) * | 2019-06-03 | 2019-08-13 | 郑州航空工业管理学院 | The self-locking energy-saving engine of depth pistion continuous variable |
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