CN101298849B - Method and device for enhancing engine efficiency - Google Patents
Method and device for enhancing engine efficiency Download PDFInfo
- Publication number
- CN101298849B CN101298849B CN200710021836XA CN200710021836A CN101298849B CN 101298849 B CN101298849 B CN 101298849B CN 200710021836X A CN200710021836X A CN 200710021836XA CN 200710021836 A CN200710021836 A CN 200710021836A CN 101298849 B CN101298849 B CN 101298849B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- compression ratio
- degree
- bearing shell
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A method is used for improving motor power. At first misalignment connecting rod crankshaft structure of the motor firstly is adopted; an outer circle or an arc line with longer diameter than an axle hole is mounted at the +(-) 15 degrees position of XY shaft of a first quadrant driven to rotary along the blast which is formed by the straight direction and vertical straight direction extending from an upper axle hole on the connecting rod; and the axle hole on the connecting rod provides the moment to the crankshaft in a second quadrant; at the same time, the cylinder compression ratio of the motor is increased by 10 to 100 %, but the cylinder compression ratio of the gasoline motor is no more than 17; and the maximum cylinder compression ratio of the diesel motor is no more than 37. The torque of this invention is remarkably increased, and the efficiency is improved and oil saving is remarkable.
Description
One, technical field
The present invention relates to improve the method and apparatus that various Reciprocating engines are the engine efficiency of power, especially cooperate, provide the connecting bar and crankshaft structure of mechanical efficiency by force position between connecting rod and the bent axle and angle, improve the cylinder compression ratio simultaneously and be used to improve vehicle torque output, have excellent fuel-saving effect simultaneously.
Two, background technique
Existing Reciprocating engine acting principle is the to-and-fro motion with piston rod, and the cooperation of the acting of the piston of cylinder of internal-combustion engine or steam engine by connecting rod and bent axle converts to and rotatablely move, and is used for driving the bent axle acting.This is to invent the engine link crankshaft structure that still keeps initial principle and structure so far from watt steam engine and diesel.The structure of explosive motor is as follows: when piston was positioned at top dead center position, piston head and the formed space of cylinder head internal surface were called the firing chamber.This spatial volume is called combustion chamber volume.Piston moves to the spatial volume that lower dead center passes through from top dead center and is called displacement volume, if motor has several cylinders, all displacement sums are called engine displacement.When piston during at bottom dead center position, whole volumes of cylinder on piston head top are called cylinder total volume.Cylinder compression ratio is that the ratio of cylinder total volume and combustion chamber volume is called compression ratio.Compression ratio has been represented piston when lower dead center moves to top dead center, and gas is compressed degree in cylinder.Compression ratio is big more, gas by compression degree in cylinder is big more, the pressure and temperature of compression terminal gas is high more, power is big more, pinking appears easily but compression ratio is too high, with regard to petrol engine, mean and must adopt the good high-octane high-grade gasoline of knock resistance, just mean that also the cost of fuel is higher.As use unmatched low grade gasoline.In fact oil consumption has increased, and the loss meeting of motor is obviously strengthened, and must additionally increase ten hundreds of auto repair expenses.
Compression ratio is an important structure parameter of motor.Diesel engine requires bigger compression ratio, and generally between 12-29, and the compression ratio of petrol engine is less, and between 6-11, for example the petrolic compression ratio of Nissan's series is 8.3:1 to 10.5:1.Normally to the technical parameter explanation of motor, can be roughly mark with the size of power and moment of torsion, the present high rotating speed of wattmeter, on engine performance curve figure, along with rotating speed rises and obviously rises, it has determined how soon car can run, moment of torsion is not necessarily brought into play when high rotating speed, comparatively straight on plotted curve, the strength when it can determine that car travels comprises acceleration.
Yet the factor that influences power, moment of torsion output is a lot, one of them key factor is exactly the compression ratio of motor, and just lean on high rotating speed to improve the power of motor, because available engine does not have the improvement project of moment of torsion output, cause available engine can only obtain existing power, moment of torsion output map, for example typically show the vehicle movement of not stepping on the gas or can't drive high tap position during less fuel feeding.When understanding engine parameter, it is much not see that singly power has, and also will see the torsion parameter simultaneously, and the rotating speed when motor is in peak output, Maximum Torque hangs down for well slightly with tachometer value certainly.
In order to improve the efficient of piston reciprocating type motor, a large amount of new technologies are employed: as the VTEC technology, " VTEC " is the abbreviation of English " Variable Valve Timing and Lift Electronic Control System ", and the Chinese meaning is " Variable Valve Time and lift electronic control system ".VTEC is the variable intake valve control technique, changes air inflow by changing the intake valve aperture, improves Engine torque.Receive the parameter of engine sensor (comprising rotating speed, suction pressure, the speed of a motor vehicle, water temperature etc.) and handle by ECU, the output control signal corresponding, regulate rocking arm piston hydraulic pressure system by solenoid valve, thereby motor is controlled by different cams under different rotating speed operating modes, influenced the aperture and the time of intake valve.
The E-Gas technology: E-Gas has been cancelled traditional acceleration cable, and by accelerator pedal sensor, micro computer is controlled closure, reacts sensitiveer, controls more accurate.
Multistage type variable intake manifold technology: by computer control intake manifold length, provide big moment of torsion when satisfying low speed, big power is provided during high speed., under the situation of low engine speed, with not only thin but also long inlet manifold; When motor is moved high speed to, adopt menifold not only thick but also short, allow motor that low speed torque is arranged again, can draw again to draw at a high speed, present car is equipped with variable menifold or two menifold mostly.For fuel saving, also adopt the rarefied gas motor in a word, reach better tail gas index.
Intelligent alterable valve timing VVT-i is a kind of admission cam shaft device of valve timing of controlling, and it is optimized by adjusting the camshaft degree valve timing, and is used for as V12, V8, V6 motor w-type engine or h type engine h in upright arrangement.
This cooperation of existing connecting bar and crankshaft structure, for proof strength and power transmit. when connecting rod and bent axle and axle journal are in alignment or during near the suitable angle straight line, the aperture of connecting rod parcel axle journal has the diameter of crankshaft journal, connecting rod can apply active force to bent axle and axle journal, but moment can't be exported, this deficiency obviously exists inharmonious between connecting rod and the crankshaft angles, makes energy loss very big.Angle has big regional (angular range) to be in very disadvantageous transmission mated condition between connecting rod and the crankshaft journal.Especially when the outburst of piston arrives atdc combustion chamber is the pressure maximum state, just in time be formed between connecting rod and the axle journal on the straight line (top dead center position of piston is included near the angular range of this straight line) this moment.Axle journal fails to provide the inclination angle that can form torsion to connecting rod, converts straight line pressure to rotating force that moment of torsion drives crankshaft rotating in the time of this motor combustion can't being exposed to the sun, and especially straight line has been passed to whole machine body, and has formed vibratory source.Under the effect of being used to power, the inclination angle just forms gradually between axle journal and the connecting rod subsequently.But; Also along with the downslide of piston, cause cylinder clearance increase, pressure also to descend rapidly thereupon.Though angle improves gradually, but pressure also worse and worse.Angle is the poorest on the contrary when the strongest to present pressure, forms this inferior position circuit crankshaft-link rod shuttling movement.Be to obtain sufficient being used to power and adding uprising dose at present, be used for covering bad reactions such as the caused pinking of 0 angle to fuel oil to improve rotating speed.
Phenomenons such as eddy current and turbulent flow except the extruding mixed gas makes it the volume-diminished, have also taken place simultaneously in piston stroking upward in compression process.When the gas in the seal container was compressed, pressure was to raise along with the rising of temperature.If the compression ratio of motor is higher, cylinder pressure that is produced during compression and temperature relatively improve, petrol molecule in the mixed gas can be vaporized more fully, particle can be finer and closely woven, eddy current and turbulent effect and the resulting sealing effect of high compression ratio, when spark plug is jumped out spark, just can make this mixed gas in moment, finish burning and discharge the outburst energy, become the power output of motor.Otherwise, the time lengthening of burning, energy can expend and increase the temperature of motor and be not the output that participates in engine power, so the motor of high compression ratio just means to have bigger power output.Common low pressure compression ratio refers to compression ratio below 10, and high compression ratio is more than 10, and compression ratio is high more comparatively speaking, and the power of motor is just big more, at present known to the compression ratio of the GPI of Mitsubishi motor reached 12.Compression ratio high-engine is more buffeted severely more, and this is because the compression ratio of motor is high more, be accompanied by usually be exactly engine operation the time buffeting meeting more obviously increase, even multicylinder engine also is like this.The energy that mixture combustion is produced when the outburst igniting comes out in abrupt release, and the kinetic energy of relative vibration is also just bigger, so transportation power is also just comparatively obvious.Be because the generation of its power of multicylinder engine is comparatively intensive, so directly feel comparatively slight in addition.Because the idle running of vehicle condition all passes through special adjustment, its oscillating point is appropriately remedied.
Also have to change concave head piston into flat head piston, strengthened compression ratio, engine efficiency improves, but needs to use high-grade gasoline.
Reduce gasoline label without authorization, the quick-fried firing chamber gas of predicted point will anti-push piston move upward.The gasoline institute work of burning will be cancelled greatly.If compression ratio is excessive, on the contrary malcombustion phenomenons such as detonation and surface ignition can appear.Engine knock, quick-friedly shake, detonation: gas pressure and temperature are too high, in the firing chamber from the center of lighting at a distance terminal inflammable mixture spontaneous combustion and a kind of malcombustion of causing.Sharp-pointed engine knock sound, because of the too fast formation pressure wave of velocity of combustion, pressure wave impinges firing chamber and producing.Consequence: engine overheat, power descends, and Economy descends, and valve burns when serious, and bearing shell breaks, and spark plug insulator is breakdown etc.Surface ignition: because a kind of malcombustion phenomenon that mixed gas produces is lighted on red-hot surface (as queuing a head, sparking-plug electrode, carbon deposit) in the firing chamber.Phenomenon: dull engine knock sound; Consequence: the engine component load increases, and the life-span descends.
For the burning of optimized combustion chamber, also adopt concave head piston, the concave head piston top is depression shape, and the shape of pit and position must help the burning of inflammable mixture, and two eddy current pits, spherical pit, U-shaped pit or the like are arranged.
Because the oily vapour total amount of maximum work done volume is far smaller than Cylinder Stroke Volume usually, four often are operated under the actual compression ratio state serious on the low side towards motor.When throttle was very little, regurgitating phenomenon can alleviate to some extent; But this moment the throttle flow in the cylinder seldom, actual compression ratio is lower, the work doing efficiency of motor is extremely low, sometimes even all can not ignition trigger.The reciprocating piston type internal combustion engine that also has the change compression ratio of company of rich gentry is referring to CN96192219.2.
Three, summary of the invention:
The present invention seeks to: by transformation bar linkage structure, cooperate by force position between connecting rod and the bent axle and angle, provide mechanical efficiency high connecting bar and crankshaft structure, make original connecting rod change over eccentricity pressure about 90 degree to the bent axle 180 concentric pressure areas of degree (the dead-end pressure district is big), thereby banking make connecting rod pressure, realized the angular adjustment of maximal efficiency on the connecting rod form, the bent axle torque has been given play to acrotorque and the moment and the acting output of not wasting has just been arranged between the San'a of acting, under the condition that adopts such scheme, improve the cylinder compression ratio simultaneously, be used to improve Motor Vehicle efficient, have fabulous fuel saving ratio simultaneously; Optimize existing power, moment of torsion curve of output.
Improve the method for engine efficiency, at first adopt motor no-concentric linkage rod crankshaft structure, the positions that the edge that the rectilinear direction of stretching out along connecting rod of connecting rod upper shaft hole and vertical line direction constitute fires the XY axle that drives the first quartile that rotates ± 15 degree are provided with cylindrical or the camber line greater than shaft hole diameter, provide moment at second quadrant to bent axle by the axis hole on the connecting rod.Simultaneously, with the cylinder compression ratio increase 10-100% of motor, the present invention the most very much not should surpass 17 to petrolic cylinder compression ratio certainly.The present invention can the most very much not should surpass 37 at 30-36 to the cylinder compression ratio of diesel engine.Gas engine can be controlled at compression ratio near the scope of petrol engine compression ratio according to its character.The present invention can realize by the volume of corresponding minimizing firing chamber.Also adopting the piston of big compression ratio, all is embodiments of the invention as concave head piston being replaced with flat head piston.Because cylinder compression ratio is the ratio of cylinder total volume and combustion chamber volume, the thickness that the volume that reduces the firing chamber during the existing vehicle of repacking also can the raising piston realizes, combustion chamber volume is corresponding during top dead center like this diminishes.
Especially whole 0-90 degree circumference range at the first quartile of connecting rod upper shaft hole enlarge internal diameter, make the circumference of 0-90 degree regional diameters of expansion greater than original axis hole, the present invention is also included within the zone of 2-10 to the 80-88 degree of first quartile or 5-15 to 80-90 degree, 0-10 to 60-75 degree and offers the circumference of diameter greater than original axis hole.
Stud with bearing shell or bearing on the axis hole, on axis hole or the parcel crankshaft journal first quartile of bearing shell or bearing ± position of 10 degree is provided with cylindrical or the camber line greater than bearing or bearing shell diameter.
Because the zone greater than original axis hole of above-mentioned axis hole (comprising when studding with bearing shell or bearing) first quartile diameter, connecting rod exists 90 degree can not form the gap that cooperates with bent axle all the time, becomes no pressure area.Force 180 original degree of cylinder connecting rod when maximum acting state to coaxial axial pressure, make active force into, thereby make torque limited between the crankshaft-link rod give play to maximum, force apart from effect to axle center 90 degree eccentric (second quadrant).
Above-mentioned pressure off-centre also can be passed through the 0-90 degree of the bearing shell on watt of connecting rod axis hole is enlarged interior circular arc, makes pressure to the eccentric effect of other 90 degree.Change original connecting rod bearing shell into needle bearing or two semi-built-up needle roller (ball) bearings, bearing inner sleeve also as bearing shell processing, makes the connecting rod bearing shell direct friction change rolling friction into.
No-concentric linkage rod crankshaft structure of the present invention, at crankshaft journal and connecting rod is in alignment and perpendicular to the straight line of level the time, connecting rod is balance vertically, and the concentric connecting bar and crankshaft of prior art is fully can balance in described position.
Characteristics of the present invention are: this invention makes and where no matter is between connecting rod and the axle journal, all can obtain the inclination angle effect brought by pressure off-centre, does not influence the motion of bent axle drivening rod.This invention can effectively solve bent axle and form the influence that 0 angle cooperates with connecting rod.Promptly possessing the possibility that allows to manufacture and design bigger compression ratio.Strengthen the compression specific energy and improve combustion value, can reduce the firing chamber clearance loss again simultaneously.This invention has solved connecting bar and crankshaft and has been the drawback that 0 angle can not produce (when acting is exposed to the sun in the engine cylinder combustion, comprising 0 angle near zone) torsion, so; It is on-stream to being used to the dependence of power circuit to have alleviated bent axle, and obviously motor also has bigger moment of torsion.Thereby possess the possibility of design slow-speed of revolution Reciprocating engine, or design more suitably compression ratio (as improving compression ratio), and bring in the petrol engine design and bring material alterations.The manufacturing of the suitable oversize piston stroke of the slow-speed of revolution, piston stroke length helps energy and makes full use of.The impact of deflagration to connecting rod bearing shell alleviated in this invention, means to use original connecting rod bearing shell instead needle roller or ball bearing.Make direct friction become rolling friction, more less wear.Be used for the transformation of engine design and available engine.By transformation to bar linkage structure, cooperate by force position between connecting rod and the bent axle and angle, provide mechanical efficiency high connecting bar and crankshaft structure, make the eccentricity pressure about original connecting rod becomes 90 to spend to the concentric pressure change of bent axle 180 degree, thereby banking make connecting rod pressure, realized the angular adjustment of maximal efficiency on the connecting rod form, the bent axle torque has been given play to acrotorque and the moment and the acting output of not wasting has just been arranged between the San'a of acting, under the condition that adopts such scheme, improve the cylinder compression ratio simultaneously, be used to improve Motor Vehicle efficient, have excellent fuel-saving effect simultaneously.The present invention optimizes existing power, moment of torsion output map, does not step on the gas or still drives the vehicle movement of high tap position during less fuel feeding.Of the present invention also have an effect to be: the engine knock that existing simple increasing compression ratio produces, quick-fried shaking really really because having of crank-connecting rod produces than the dead point of wide-angle or dead band, if eliminate this dead point, engine knock, quick-fried phenomenon of shaking are eliminated, promptly also be converted into useful moment output, as because of the too fast formation pressure wave of velocity of combustion, and be unlikely to act on the dead point or dead band of crankshaft-link rod, and still make piston produce moment of torsion.And, can adopt aggregate measures to solve owing to improve the interior temperature raising of cylinder that compression ratio causes, and as strengthening heat dissipating capacity, increasing heat dissipating capacity, two kinds of heat diffusion area are selected, and so in a word measure helps improving the efficiency of internal combustion engine in theory.The gasoline institute work of burning is unlikely and is cancelled.
The obvious increase of moment of torsion of the present invention, can also improve existing vehicle speed governing or speed variator system, even level output shaft rev up not, even can overturn Pyatyi hand gear shelves commonly used now to a certain degree---when top gear also can be at vehicle launch or low speed, guarantee to travel normally.
The present invention's utilization in repacking has very excellent effect, after the inventive method repacking, the power performance of vehicle obviously improves, oil-saving effect is very obvious, the present invention's gasoline engine car fuel saving ratio after reequiping generally reaches more than 20%, be used for the power performance (because moment of torsion increases) of new car design also can the raising greatly vehicle, can improve petrolic compression ratio, acting fully; And oil-saving effect also can reach about 15% or more.New car engine designs according to this obviously has same or better effect, do not get rid of equally and adopt the various motors of background technique all can use the solution of the present invention, comparatively speaking, compression ratio of the present invention improves, need not to adopt the more gasoline of high grade, as long as adopt the label gasoline of same size motor appointment, this be since pinking often since the dead point of connecting bar and crankshaft cause, because the present invention has eliminated this dead point, even firing of low grade gasoline generation also is to be used to make useful moment output.
The present invention can be used for various internal-combustion engines, be used for gasoline and diesel engine all can, the better effects if of petrol engine and fuel combination especially comprises that methyl alcohol, ethanol, dimethyl ether and the motor effect of mixing with gasoline are also obvious.
Four, description of drawings
Fig. 1 is the connecting bar and crankshaft fundamental diagram
Fig. 2 is connecting rod neck structure figure
Fig. 3 is a connecting bar and crankshaft diverse location working drawing
1, the no pressure area 8 of 0-90 degree, bent axle (main shaft) 9, moving equilibrium piece on the needle bearing shell of inlaying in piston pin hole, 2, connecting rod, 3, the connecting rod axis hole 4, needle bearing 5, connecting rod cap 6, connecting rod axis hole 7, the connecting rod axis hole, the rotation arrow is a counterclockwise.
Five, specific embodiments
Shown in Figure 1, be in the top dead center state of motor, that certainly hypothesis bent axle be rotated counterclockwise (when turning clockwise then at second quadrant of bearing shell) as bent axle, Fig. 2, bearing shell can be made the shape as the connecting rod neck hole among Fig. 2 fully, the first quartile of bearing shell has breach when opposite (then be second quadrant as sense of rotation), and promptly 0-90 degree are that connecting rod does not have the pressure span to bent axle.Described 0-90 degree regional diameters that make expansion are greater than original circumference by vertical 0-90 degree circumference range of connecting rod axis hole are enlarged internal diameter, and connecting rod exists 90 degree can not form the gap that cooperates with connecting bar and crankshaft all the time, becomes no pressure area.Make the original 180 degree concentric pressure of connecting rod, make that 90 degree are eccentric in addition to the axle center into, thereby make torque limited between the crankshaft-link rod give play to maximum, force apart from effect.
The present invention is applicable to the manufactured materials of existing manufacturing process and connecting rod, bent axle fully.Only, generally get first quartile 0-90 degree position and enlarge 0.5-3mm to cylindrical in the position of axis hole (comprise and stud with bearing shell or bearing) first quartile; Especially outwards enlarge 0.5-1.5mm.
Described pressure off-centre also can enlarge interior circular arc by connecting rod bearing shell top bearing shell (bearing shell of nearly cylinder side) 180 degree are gone up from 90 degree, makes pressure to the eccentric effect of other 90 degree.Or change original connecting rod bearing shell into two semi-built-up needle bearings, make the connecting rod bearing shell direct friction change rolling friction into.The bearing shell of bearing is also done corresponding change.
Schematic representation with a certain cylinder among the figure is represented, the connecting bar and crankshaft structure of multicylinder engine is also like this, structure of the present invention causes: when piston is in top dead center position, bent axle and connecting rod surface of contact are that upper half-bearing is stressed zone, but it is not an even beaer, but put forth effort towards half bearing shell face of the upper half-bearing of sense of rotation (left side among the figure is when supposing to rotate counterclockwise) at upper half-bearing, and be in hovering at other half face.
Example is that 0-80 degree are that connecting rod does not have the pressure span to bent axle among Fig. 3, and similar effects is all arranged.
Repacking Ying Geer motor car engine, 1.461 discharge capacities: former compression ratio is 9.5, and the volume of piston (the founding same alloy is to piston) increases, and the firing chamber of every cylinder reduces to 33ML from 40ML, promptly reduces combustion chamber volume; New compression ratio is 15; Do not stepping on the gas or still driving the vehicle movement of five gears during less fuel feeding.Hundred kilometers oil consumption reduces by 2.6 liters.Fuel saving ratio about 35%.Compression ratio is 10 o'clock, and power is excessive, and compression ratio is 12 o'clock, and fuel-economizing is obvious inadequately.
Repacking Sail automobile (new car) motor C16N1,1.5981 discharge capacities: former compression ratio is 9.41, new compression ratio is 14, is not stepping on the gas or is still driving the vehicle movement of five gears during less fuel feeding.Hundred kilometers oil consumption reduces by 2 liters; Fuel saving ratio about 25%.
Therefore, for petrol engine, when the first quartile 0-90 of bearing shell was outside one's consideration the outside expansion of circle expansion 0.5-1.5mm, compression ratio made 12-16 into and has better effect.
Connecting rod bearing shell changes needle bearing or two semi-built-up needle roller (ball) bearings into, and bearing inner sleeve also as bearing shell processing, makes the connecting rod bearing shell direct friction change rolling friction into.Connecting rod bearing shell can also be a twin shaft tile structure side by side.
New engine design obviously can be with reference to above-mentioned parameter.Adopt crankshaft rod structure of the present invention, petrol engine on the basis of original design parameter increasing compression ratio to 13-16 be preferred scheme, overcoming exposing to the sun of vehicle shakes, need not to make into high-grade gasoline, certainly on design of Cooling System, strengthen the design of unit time heat dissipating capacity, the 10-25% of the corresponding increase of unit time heat dissipating capacity in general.
Claims (8)
1. method that improves engine efficiency, at first adopt motor no-concentric linkage rod crankshaft structure, the zone that the edge that the rectilinear direction of stretching out along connecting rod of connecting rod upper shaft hole and vertical described rectilinear direction constitute fires the 0-90 degree that drives the first quartile that rotates is provided with the cylindrical greater than shaft hole diameter, promptly the whole 0-90 degree circumference range at the first quartile of connecting rod upper shaft hole enlarges internal diameter, make the diameter of the axis hole 0-90 degree regional diameter of expansion, provide moment at second quadrant to bent axle by the axis hole on the connecting rod greater than original axis hole; Simultaneously, adopt the piston of big compression ratio, concave head piston is filled into flat head piston,, but petrolic cylinder compression ratio maximum is no more than 17 the cylinder compression ratio increase 10-100% of motor; Maximum cylinder compression ratio to diesel engine is no more than 37.
2. the method for raising engine efficiency according to claim 1 is characterized in that the cylindrical of diameter greater than original shaft hole diameter offered in the zone of 2 to 88 degree, 5 to 90 degree or 0 to 75 degree at connecting rod upper shaft hole first quartile.
3. the method for raising engine efficiency according to claim 1 is characterized in that studding with on the axis hole bearing shell or bearing, is provided with the cylindrical greater than bearing or bearing shell diameter in the zone of the parcel crankshaft journal first quartile 0-90 of bearing shell or bearing degree.
4. the method for raising engine efficiency according to claim 1 is characterized in that the 0-90 degree zone of the connecting rod bearing shell on watt of connecting rod axis hole is outwards enlarged 0.5-3mm with interior circular arc.
5. the method for raising engine efficiency according to claim 4 is characterized in that outwards enlarging 0.5-1.5mm.
6. according to the method for the raising engine efficiency of claim 3, when it is characterized in that studding with bearing shell on the axis hole, bearing shell changes two semi-built-up needle bearings into.
7. according to the method for the raising engine efficiency of claim 3, when it is characterized in that studding with bearing shell on the axis hole, bearing shell is a double link bearing shell structure side by side.
8. according to the method for the raising engine efficiency of claim 1, it is characterized in that the petrol engine compression ratio is 13-16, the corresponding increase of the unit time heat dissipating capacity 10-25% of cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710021836XA CN101298849B (en) | 2007-04-30 | 2007-04-30 | Method and device for enhancing engine efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710021836XA CN101298849B (en) | 2007-04-30 | 2007-04-30 | Method and device for enhancing engine efficiency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298849A CN101298849A (en) | 2008-11-05 |
| CN101298849B true CN101298849B (en) | 2010-12-08 |
Family
ID=40078777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710021836XA Expired - Fee Related CN101298849B (en) | 2007-04-30 | 2007-04-30 | Method and device for enhancing engine efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101298849B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089797A (en) * | 2011-11-01 | 2013-05-08 | 杨嘉明 | Comb teeth bearing-engagement rolling bearing |
| CN103206250B (en) * | 2012-09-26 | 2015-12-09 | 祥天控股（集团）有限公司 | Swing type variable multi-cylinder aerodynamic engine |
| CN107806514A (en) * | 2017-11-29 | 2018-03-16 | 瑞安市创泰活塞制造有限公司 | A kind of engine piston |
| CN108730319A (en) * | 2018-07-13 | 2018-11-02 | 尹建 | The positive open type jointed connecting rod of five connecting rod engines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373616Y (en) * | 1999-02-23 | 2000-04-12 | 余大坤 | Eccentric energy-saving link for engine |
| CN2387309Y (en) * | 1999-08-24 | 2000-07-12 | 阎书义 | Crankshaft connecting rod suitable for I. C. engine crankshaft |
| US6257768B1 (en) * | 1998-10-30 | 2001-07-10 | Dana Corporation | Bearings |
| DE10023773A1 (en) * | 2000-05-15 | 2002-01-31 | Volkswagen Ag | Lightweight connecting rod for IC engine has a mass reducing groove around the outer edge and with a web shaped structure |
| CN1712684A (en) * | 2004-06-15 | 2005-12-28 | 耿新科 | High-efficient and energy-saving engine |
-
2007
- 2007-04-30 CN CN200710021836XA patent/CN101298849B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257768B1 (en) * | 1998-10-30 | 2001-07-10 | Dana Corporation | Bearings |
| CN2373616Y (en) * | 1999-02-23 | 2000-04-12 | 余大坤 | Eccentric energy-saving link for engine |
| CN2387309Y (en) * | 1999-08-24 | 2000-07-12 | 阎书义 | Crankshaft connecting rod suitable for I. C. engine crankshaft |
| DE10023773A1 (en) * | 2000-05-15 | 2002-01-31 | Volkswagen Ag | Lightweight connecting rod for IC engine has a mass reducing groove around the outer edge and with a web shaped structure |
| CN1712684A (en) * | 2004-06-15 | 2005-12-28 | 耿新科 | High-efficient and energy-saving engine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-325410A 1998.12.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101298849A (en) | 2008-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101624939B (en) | Variable compression ratio apparatus | |
| Shaik et al. | Variable compression ratio engine: a future power plant for automobiles-an overview | |
| US9169774B2 (en) | Variable compression ratio engine that varies compression ratio | |
| Hosaka et al. | Development of the variable valve timing and lift (VTEC) engine for the Honda NSX | |
| CN102374042B (en) | The device of variable compression ratio | |
| CN101936228A (en) | Variable compression ratio apparatus | |
| CN101298849B (en) | Method and device for enhancing engine efficiency | |
| CN1160435A (en) | Dual Piston IC engine | |
| EP2440763A1 (en) | Engine control method | |
| CN102465770A (en) | Variable compression ratio apparatus | |
| KR20080042149A (en) | A two-stroke engine with variable compression | |
| EA006027B1 (en) | Variable flow reducing valve and gradual control valve distribution system for a compressed air injection engine operating on mono or multienergy and other engines or compressors | |
| CN101865025A (en) | Generator with continuous variable volume compression ratio | |
| US20100132673A1 (en) | Variable compression ratio apparatus for vehicle engine | |
| JP5478741B2 (en) | Low fuel consumption, low emission 2-stroke engine | |
| US6672270B2 (en) | Fuel efficient valve mechanism for internal combustion engines | |
| CN104487676A (en) | Internal combustion engine | |
| CN201588694U (en) | Continuous variable volume compression ratio engine | |
| US6422196B1 (en) | Piston engine powertrain | |
| CN107762641B (en) | Continuous variable compression ratio engine device and compression ratio conversion method | |
| Joshi et al. | Variable compression ratio (VCR) engine-a review of future power plant for automobile | |
| CN106640371A (en) | Single mode four-stroke minitype water-cooling oil gas electricity generating engine | |
| CN114412639A (en) | Strong vortex variable Miller cycle internal combustion engine | |
| Clenci et al. | Variable compression ratio at internal combustion engine | |
| US7040264B2 (en) | Timing advancement for exhaust valve in internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20130430 |