CN103452660B - A kind of motor - Google Patents
A kind of motor Download PDFInfo
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- CN103452660B CN103452660B CN201310438056.0A CN201310438056A CN103452660B CN 103452660 B CN103452660 B CN 103452660B CN 201310438056 A CN201310438056 A CN 201310438056A CN 103452660 B CN103452660 B CN 103452660B
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- plunger
- cylinder
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- stroke
- piston
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Abstract
The present invention relates to motor vehicle components technical field, in particular to a kind of motor.This motor, comprise cylinder, cylinder head, ECU control system, piston, intake valve, exhaust valve, hydraulic jack, solenoid valve and plunger, cylinder chamber is provided with in described cylinder, described piston moves up and down in described cylinder chamber, described intake valve, described exhaust valve and described plunger are all positioned at described cylinder head, and all communicate with described cylinder chamber, described ECU control system passes in and out oil mass up and down by controlling described solenoid valve to promote described hydraulic jack up and down thus drive described plunger upward and downward.Motor provided by the invention, can according to motor can regulate and control arbitrarily under different loads minimum and maximum cylinder diameter value penetrate oil mass save oil consumption, reduce discharge capacity.
Description
Technical field
The present invention relates to motor vehicle components technical field, in particular to a kind of motor.
Background technique
Motor is the heart of automobile, for the walking of automobile provides power, is related to the power character of automobile, Economy, the feature of environmental protection.In simple terms, motor is exactly an energy transfer mechanism, by the heat energy of gasoline, diesel oil or rock gas, by sealing cylinder combustion gas expansion, promotes piston acting, changes mechanical energy into, and this is the most basic principle of motor.
But, traditional motor after entering in cylinder when air, by piston compression to a certain extent after, by the effect of oil pump, fuel is sprayed into cylinder combustion indoor by oil nozzle, allow it do work with air mixing after-combustion, promote piston movement, produce kinetic energy.Traditional engine piston swept volume and combustion chamber volume are fixing, and indrawn air is limited, thus cause compression ratio immutable.When motor is at Smaller load, when low engine speed is run, air inflow is relatively less, gas is low by compression degree, and fuel can be caused fully not mix with air, causes burning insufficient, combustion efficiency is low, causes engine power not enough, also can increase oil consumption and discharge amount of exhaust gas simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of motor, to solve the above problems.
Provide a kind of motor in an embodiment of the present invention, comprise cylinder, cylinder head, ECU control system, piston, intake valve, exhaust valve, hydraulic jack, solenoid valve and plunger, cylinder chamber is provided with in described cylinder, described piston moves up and down in described cylinder chamber, described intake valve, described exhaust valve and described plunger are all positioned at described cylinder head, and all communicate with described cylinder chamber, described ECU control system passes in and out oil mass up and down by controlling described solenoid valve to promote described hydraulic jack up and down thus drive described plunger upward and downward.
A kind of motor of the above embodiment of the present invention, adds plunger in cylinder head, and described ECU control system passes in and out oil mass up and down by controlling described solenoid valve to promote described hydraulic jack up and down thus drive described plunger upward and downward.Such plunger can first be regulated and controled cylinder compression ratio by the volumetric capacity that changes in cylinder, then plunger does stroke adjusting in cylinder, like this can according to motor can regulate and control arbitrarily under different loads minimum and maximum cylinder diameter value penetrate oil mass save oil consumption, reduce discharge capacity.
Accompanying drawing explanation
Fig. 1 shows the structural representation of a kind of motor that the embodiment of the present invention provides;
Fig. 2 to show in a kind of motor that the embodiment of the present invention provides plunger at upper solstice structural representation;
Fig. 3 to show in a kind of motor that the embodiment of the present invention provides plunger at lower solstice structural representation;
Fig. 4 shows the plan view of cylinder head in a kind of motor that the embodiment of the present invention provides.
In figure: 1 cylinder chamber 2 cylinder head
3 piston 4 intake valves
5 exhaust valve 6 hydraulic jacks
7 plunger 8 compression rings
9 oil ring 10 solenoid valves
11 plunger position sensor 12 temperature and pressure transmitters
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
As shown in Figure 1, a kind of motor provided by the invention, comprise cylinder, cylinder head 2, ECU control system, piston 3, intake valve 4, exhaust valve 5, hydraulic jack 6, solenoid valve 10 and plunger 7, cylinder chamber 1 is provided with in cylinder, piston 3 moves up and down in cylinder chamber 1, intake valve 4, exhaust valve 5 are all positioned at cylinder head 2 with plunger 7, and all communicate with cylinder chamber 1, ECU control system by Controlling solenoid valve about 10 pass in and out oil mass promote hydraulic jack 6 up and down thus drive plunger 7 move up and down.A kind of motor that the embodiment of the present invention provides, adds plunger 7 in cylinder head 2, and ECU control system by Controlling solenoid valve about 10 pass in and out oil mass promote hydraulic jack 6 up and down thus drive plunger 7 move up and down.Such plunger 7 can first be regulated and controled cylinder compression ratio by the volumetric capacity that changes in cylinder, then plunger 7 does stroke adjusting in cylinder, like this can according to motor can regulate and control arbitrarily under different loads minimum and maximum cylinder diameter value penetrate oil mass save oil consumption, reduce discharge capacity.
As shown in Figure 1, the said hydraulic jack 6 of embodiments of the invention is provided with the plunger position sensor 11 for responding to plunger 7 position and stroke.Plunger position sensor 11 may be used for induction plunger 7 position and stroke, then ECU control system is passed in plunger 7 position obtained and run-length data.The motor provided in the embodiment of the present invention can control position and the stroke of plunger 7 accurately by solenoid valve 10, ECU control system and this plunger position sensor 11.
As shown in Figure 1 and Figure 4, the said motor of embodiments of the invention also comprises temperature and pressure transmitter 12, and temperature and pressure transmitter 12 stretches in cylinder for responding to the temperature and pressure in cylinder.Like this can when engine operation, obtain temperature in cylinder chamber 1 and pressure value by temperature and pressure transmitter 12 accurately.
As shown in Figure 4, the said motor of embodiments of the invention comprises two plungers, 7, two plungers 7 all between intake valve 4 and exhaust valve 5.The said motor of embodiments of the invention is reached by the volumetric capacity that two plungers 7 regulate and control in cylinder and changes compression ratio and cylinder bore value, thus can spray oil mass and save oil consumption, reduce discharge capacity according to regulating and controlling arbitrarily under the different load of motor minimum and maximum cylinder diameter value.
As shown in Figure 1, the said motor of embodiments of the invention is provided with compression ring 8 and oil ring 9 on the outer wall of plunger 7.Sealing can be played to plunger 7 by this compression ring 8 and oil ring 9, fall the effect of end wearing and tearing, improve the working life of plunger 7.
As shown in Figures 1 to 3, in the said motor of embodiments of the invention, plunger 7 is identical with the speed that piston 3 moves up and down.Can ensure that plunger 7 and piston 3 associated movement do work like this, thus change the volumetric capacity in cylinder.
In embodiments of the invention, the bottom surface of plunger 7 and the end face of piston 3 opposite position have the structure matched, without air clearance when this structure matched can ensure that plunger 7 moves together with piston 3, thus make motor do work burning time can not to plunger 7 power upwards.
In an embodiment of the present invention, above the bottom surface of plunger 7 mentioned and the end face of piston 3 opposite position there is the structure matched, comprise following several situation:
As shown in Figures 1 to 3, the bottom surface of plunger 7 is the arc-shaped structure of depression, and the end face of piston 3 opposite position is protruding arc-shaped structure;
The bottom surface of plunger 7 is plane structure, and the end face of piston 3 opposite position is plane structure;
The bottom surface of plunger 7 is protruding arc-shaped structure, and the end face of piston 3 opposite position is the arc-shaped structure of depression.
The bottom surface of certain plunger 7 and the end face of piston 3 opposite position have the structure matched, and can be in related domain, and any structure that can realize above-mentioned purpose and match, is all applicable to the present embodiment.
Comprise the compositions such as sensed system, control system and executive system in the present invention.Wherein each sensor of motor and temperature cylinder pressure transducer and plunger position sensor 11 form sensed system; Control system and ECU control system; Hydraulic-pressure pump, solenoid valve 10, plunger 7 etc. form executive system.
As shown in Figure 1, Figure 2 and Figure 3, in the present invention, the running length of plunger 7 and the running length of piston 3 are consistent, and have upper to point with down to point, and are divided into four strokes, are respectively: aspirating stroke, compression stroke, expansion stroke and exhaust stroke.Just introduce aspirating stroke, compression stroke, expansion stroke and exhaust stroke respectively below:
Aspirating stroke: when piston 3 is in air inlet, plunger 7 does not change to putting upper, can ensure the maximum volume amount in cylinder like this.
Compression stroke: when piston compression, the instruction that plunger 7 can send according to ECU control system makes corresponding stroke adjusting to reach the compression ratio of specifying;
When small engine load, now ECU control system can be learnt according to each sensor signal, then sends instruction and goes downwards to certain position to solenoid valve 10 order plunger 7 and make cylinder inner volume volume diminish thus reach the high compression ratio of specifying;
When the large load of motor, now ECU control system can be learnt according to each sensor signal, and at this moment plunger 7 does not change to ensure volumetric capacity amount in cylinder to point upper thus reach the low compression ratio of specifying.
Expansion stroke: motor is when control piston 3 moves downward acting, plunger 7 can follow piston 3 to do work together with same speed and stroke, when piston 3 is descending, plunger 7 is also descending, thus the volumetric capacity in change cylinder reaches and changes the object of cylinder bore, improve inner pressure of air cylinder value and combustion efficiency thus promote power, save oil consumption, reduce discharge.
Exhaust stroke: when cylinder exhaust, plunger 7 to be vented and up along with piston 3, the force value of cylinder interior gas is improved by the volume changed in cylinder, thus increase exhausting waste gas pressure, the rotating speed of turbosupercharger is promoted, then bring the increase of air inflow, improve combustion efficiency, promote the power of motor.
At the end of exhaust stroke, piston 3 has been got back to again to point.Also a work cycle is just completed.Subsequently, the bent axle in motor still continues under relying on the effect of inertia of the flywheel turns in motor to rotate, and starts next circulation like this.So go round and begin again, motor just constantly gets into smooth.
Utilize this running of cylinder of the present invention, can make cylinder internal fixtion compression ratio from 8:1 to 14:1 between change, motor adopts high compression ratio when Smaller load, adopt low compression ratio to realize saving oil consumption, promote power, reduce discharge when large load, this stroke adjusting for cylinder can be referred to as variable compression ratio stroke adjusting technology.Variable compression ratio stroke adjusting technology is to realize perfect air fuel ratio theory and to improve compression ratio concept.Wherein, compression ratio is defined as: the ratio of cylinder total volume and combustion chamber volume.Therefore the compression ratio changing cylinder can be realized by the change swept volume of cylinder and the volume of firing chamber.
In the present invention, variable compression ratio stroke adjusting technology be on original engine cylinder cap 2, add two can the plunger 7 of stroke adjusting up and down, plunger 7 can in cylinder the up and down arbitrarily thus volumetric capacity changing cylinder to change compression ratio, its compression ratio range can from 8:1 to 14:1 between change.Adopt high compression ratio with saving fuel oil when small engine load; Adopt low compression ratio when the large load of motor, and be aided with pressurized machine to realize the output of high-power and high moment of torsion.
In the present invention, variable compression ratio stroke adjusting technical application is in diesel engine, petrol engine or even natural gas engine.Difference maximum between them is the difference of combustion manner, and temperature and the condition of the different and burning of the characteristic of oil are different.Such as diesel engine is compression-ignited, and its compression ratio range is between 18 to 22; And petrol engine and natural gas engine are Spark ignition types, its compression ratio range is between 8 to 14.The combustion characteristic of gasoline result in petrolic mixture pressure can not be too high.If the pressure of cylinder has exceeded critical value, will pinking be there is, affect Power output like this.Especially supercharged engine, motor can be caused again when pressurized machine is not got involved completely if reduce compression ratio, combustion efficiency is very low, few many of the power that the power that can produce produces than the motor of common natural aspiration.
Variable compression ratio stroke adjusting technology has following advantage: the thermal efficiency that improve motor, improves the fuel economy of motor to a great extent, is conducive to reducing discharge; There is good fuel tolerance; When identical output power, small-displacement high-power high pulling torque can be reached; Power character when fuel economy when taking into account sub load and large load, also avoids the pinking risk in combustion process while improving low engine speed power performance.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a motor, it is characterized in that, comprise cylinder, cylinder head, ECU control system, piston, intake valve, exhaust valve, hydraulic jack, solenoid valve and plunger, cylinder chamber is provided with in described cylinder, described piston moves up and down in described cylinder chamber, described intake valve, described exhaust valve and described plunger are all positioned at described cylinder head, and all communicate with described cylinder chamber, described ECU control system passes in and out oil mass up and down by controlling described solenoid valve to promote described hydraulic jack up and down thus drive described plunger upward and downward; In the compression stroke of motor, regulate and control the compression ratio of described cylinder by the situation that moves up and down regulating and controlling described plunger and in the expansion stroke of motor, change the volume in described cylinder thus change the cylinder diameter value of described cylinder;
The running length of described plunger and the running length of described piston are consistent, and described plunger has top dead center and lower dead center; During aspirating stroke, described plunger is static is positioned at top dead center; During compression stroke, described ECU control system controls the motion of described plunger to regulate and control the compression ratio of cylinder; In expansion stroke, described plunger moves downward with same speed and stroke with described piston; In exhaust stroke, described plunger moves upward with same speed and stroke with described piston;
The bottom surface of described plunger and the end face of described piston opposite position have the structure matched.
2. a kind of motor according to claim 1, is characterized in that, described hydraulic jack is provided with the plunger position sensor for responding to described plunger position and stroke.
3. a kind of motor according to claim 2, is characterized in that, also comprise temperature and pressure transmitter, and described temperature and pressure transmitter stretches in described cylinder for responding to the temperature and pressure in described cylinder.
4. a kind of motor according to claim 3, is characterized in that, comprises two described plungers, and two described plungers are all between described intake valve and described exhaust valve.
5. motor according to claim 4, is characterized in that, the outer wall of described plunger is provided with compression ring and oil ring.
6. a kind of motor according to claim 1, is characterized in that, the bottom surface of described plunger is protruding arc-shaped structure, and the end face of described piston opposite position is the arc-shaped structure of depression.
7. a kind of motor according to claim 1, is characterized in that, the bottom surface of described plunger is plane structure, and the end face of described piston opposite position is plane structure.
8. a kind of motor according to claim 1, is characterized in that, the bottom surface of described plunger is the arc-shaped structure of depression, and the end face of described piston opposite position is protruding arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438056.0A CN103452660B (en) | 2013-09-24 | 2013-09-24 | A kind of motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310438056.0A CN103452660B (en) | 2013-09-24 | 2013-09-24 | A kind of motor |
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| Publication Number | Publication Date |
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| CN103452660A CN103452660A (en) | 2013-12-18 |
| CN103452660B true CN103452660B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310438056.0A Expired - Fee Related CN103452660B (en) | 2013-09-24 | 2013-09-24 | A kind of motor |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523209A (en) * | 2003-02-18 | 2004-08-25 | 履带拖拉机股份有限公司 | Combustion engine variable compression ratio apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA32582C2 (en) * | 1993-06-26 | 2001-02-15 | Ковентрський Університет | Combustion engine and method (variants) of its operation |
| AUPO904197A0 (en) * | 1997-09-09 | 1997-10-02 | Dixon, Michael Patrick | Internal combusion engine |
| US6792899B2 (en) * | 2002-10-17 | 2004-09-21 | Southwest Research Institute | Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall |
| US20090223491A1 (en) * | 2008-03-05 | 2009-09-10 | Ahmed Syed | Variable compression ratio engine |
| JP2013528740A (en) * | 2011-05-15 | 2013-07-11 | ゴニグマン，イツァク | Method and system for an internal combustion engine |
| CN203570426U (en) * | 2013-09-24 | 2014-04-30 | 蒋虎 | Engine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523209A (en) * | 2003-02-18 | 2004-08-25 | 履带拖拉机股份有限公司 | Combustion engine variable compression ratio apparatus and method |
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| CN103452660A (en) | 2013-12-18 |
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Granted publication date: 20160120 Termination date: 20180924 |
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