CN2797643Y - Camshaft of petrol motor - Google Patents
Camshaft of petrol motor Download PDFInfo
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- CN2797643Y CN2797643Y CN 200520015760 CN200520015760U CN2797643Y CN 2797643 Y CN2797643 Y CN 2797643Y CN 200520015760 CN200520015760 CN 200520015760 CN 200520015760 U CN200520015760 U CN 200520015760U CN 2797643 Y CN2797643 Y CN 2797643Y
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Abstract
The utility model relates to a cam shaft of a gasoline engine. The cam shaft is a cam shaft of a C498 engine. The utility model comprises air inlet cams of four cylinders and air outlet cams of four cylinders which are arranged at intervals. The end part of the cam shaft is provided with two positioning pin holes. The included angle between a central connecting line of the two positioning pin holes and a central line of the air outlet cam of the first cylinder is equal to 3.25 DEG. The C498 gasoline engine of the utility model is adopted, the late closing angle of an air inlet valve and the early opening angle of an air outlet valve are properly reduced, the characteristics of a torsional moment with middle and low speed are improved, and the oil consumption per one hundred kilometers is lowered.
Description
Technical field
The utility model relates to the motor car engine field, is a kind of C498 petrol engine camshaft specifically.
Background technique
The C498 Engine Series is in-line four cylinder OHV petrol engine, is the advanced product of introducing from U.S. Chrysler with world level eighties, and one phase comparatively brilliant history was once arranged.But As time goes on, the particularly operation successively of the more advanced new architecture of technology, its technical merit and performance index seem that progressively some falls behind.Although also adopted multiple spot closed loop electric jet technology, exhaust index is also more advanced, does not do more improvement on structural design, rests on the level when introducing the eighties basically, compares with domestic advanced type to have a certain distance.Therefore, from C498 motor reality, on the basis of Technical advancement and technology inheritance correlation of making overall plans, the current more advanced state-of-the-art technology of active adoption is done necessary technology and is improved, to dwindle the gap with domestic advanced type, be very urgent task of pendulum in face of ours.
The effect of the distribution device of motor is the job order according to motor, and the moment opening and closing inlet and exhaust valve determining makes gas exchange process and work cycle smooth.Theoretically, inlet and exhaust valve should be respectively in terminal (being top dead center or the lower dead center) opening and closing of intake and exhaust stroke.But in fact because the engine operation rotating speed is very high, gas exchange process (forming) endurance very of short duration (0.05～0.005 second) by exhaust stroke and aspirating stroke, and the opening and closing of valve are progressive formations, and have only and could realize effectively opening and ventilation when valve lift reach a certain height.For effective opening time of valve is prolonged relatively, inlet and exhaust valve all will early be opened usually and close suitable angle late, to improve scavenging efficiency and complete machine performance.After inlet and exhaust valve is early opened and closed late, will inevitably produce certain influence to the proper functioning of the adjacent stroke in front and back, but to close angle Selection late suitable as long as early open, and adverse effect is controlled at certain limit, scavenging efficiency and overall performance level still can effectively improve.Certainly, to close angle control late improper if early open, excessive to adjacent stroke influence, then runs counter to desire probably, can cause scavenging efficiency and complete machine performance level to descend on the contrary.
Early stage motor, particularly carburetor engine because technical specifications were limit at that time, add to open very early in the morning and close the angle late and once once be widely adopted as the main enhancements of raising engine speed.But early open close the angle late and increase after, though high speed performance makes moderate progress, low-speed performance descends to some extent, and because thermal loss increases, and not only oil consumption increases, emission status also worsens to some extent.Therefore, along with the control to exhaust emissions is strict day by day, the extensive use of electron controls technology and variable technique, the approach means that improve scavenging efficiency increase than in the past, for reducing environmental pollution, low-speed torque characteristic in the improvement reduces fuel consume, port timing is the trend that progressively reduces, and sees attached list 1.
Subordinate list 1: the port timing situation of domestic several main types
| Type | The JV of Santana | The JW of Audi | Citroen zx TU | Beautiful XN | Jetta EA | Liberation 6102 | Former 492Q | Existing 492Q | 491 | Cherokee C498Q |
| The exhaust angle of advanced opening | 42° | 41° | 32.4° | 34° | 28° | 42° | 58° | 54° | 54° | 60° |
| The angle is closed in exhaust late | 2° | 5° | 7° | 12°4′ | 6° | 18° | 30° | 18° | 10° | 30° |
| The air inlet angle of advanced opening | 1° | 3° | 5.9° | 4°26′ | 0° | 12° | 24° | 15° | 12° | 16° |
| The angle is closed in air inlet late | 37° | 33° | 44.4° | 42° | 22° | 48° | 64° | 57° | 48° | 74° |
| Valve overlap | 3° | 8° | 12.9° | 16°30′ | 6° | 30° | 54° | 33° | 22° | 46° |
Be not difficult to find out from the port timing table, the intake and exhaust of C498 motor open early that to close the angle late all many greatly than other type, this just in the C498 motor low-speed torque characteristic not good, one of oil consumption main reason of high is (when the most tangible illustration quickens exactly, must gear could be risen up into high one grade towards car to higher rotation speed, otherwise the gear shift rear engine is in lower-speed state and is difficult to speed is raised up, and light vapour, the supporting road of north trip are tried all like this).With the air inlet phase angle to ventilation effectiveness affects maximum is example: the most types of air inlet angle of advanced opening all are controlled in 10 °, 492 were once once reaching 24 °, but also dropped to 15 ° afterwards, has only C498 still than higher, reach 16 °, intake valve is opened too early in exhaust stroke, is easy to cause waste gas to pour intake duct into, cause residual exhaust gases to increase, scavenging efficiency descends; Intake valve closes the most types in angle late and all is controlled in 50 °, 492 were once once reaching 64 °, but also dropped to 57 ° afterwards, it is higher to be still C498, reach 74 °, intake valve in compression stroke after closing late, when low speed, because time of exchanging gas is relatively abundant, the cylinder internal air pressure is easy to cause the incoming mixture that has just sucked to push back intake duct again than higher during the compression beginning, cause charging efficiency to descend (when the most tangible illustration is tested the cylinder pressure exactly, the cylinder of C498 is pressed on the low side, 827～1034KPa only, and 491 be 1226KPa).Accompanying drawing 1 closes angle and charging efficiency η late for various inlet
vAnd angle is closed in the air inlet in the graph of a relation of rotation speed n late
1＜
2＜
3As can be seen from Figure, it is big that the angle is closed in air inlet late, charging efficiency η during high speed
vReally higher relatively, but charging efficiency η during low speed
vIt is a lot of to descend, and no matter is maximum charging efficiency, or uniform charge efficient, all closes the angle late not as good as smaller air inlet.Certainly, it is too small that the angle is closed in air inlet late, and it is very poor that high speed performance will become again.But consider that C498 is an OHV, the distribution Transmitted chains is longer, and for reducing the cam bearing strength test, it is also unsuitable too small that valve opening continues the angle.
The exhaust phase place also has a direct impact the complete machine characteristic, and particularly the exhaust angle of advanced opening is bigger to thermal loss (being the expansion working loss) and exhaust loss influence.Accompanying drawing 2 is the influences of different exhaust angles of advanced opening to engine performance, and the Pi among the figure represents the exhaust pressure in the cylinder, and V identifies volume of cylinder, and Pe represents the exhaust back pressure in the outlet pipe, and M, N represent top dead center and lower dead center respectively, exhaust initial angle
1＜
2＜
3As shown in Figure 2,
1Exhauxt valve opens is too early, although vent ratio is more abundant, scavenging efficiency improves, and exhaust loss is that the merit of exhaust consumption is also less, and combustion gas do not obtain abundant expansion working and just are excluded cylinder, and the loss of expansion output work is too big, still loses more than gain generally.Certainly, exhauxt valve opens is late excessively, as
3, the combustion gas work done is abundant, but the exhaust wasted work is too much, loses more than gain equally.Can find out that from subordinate list 1 domestic most type exhaust angles of advanced opening are controlled between 30 ° to 45 ° mostly; 492 motors were once once reaching 58 °, but also dropped to 54 ° afterwards; And the stroking distance of C498 own is from just short, the birth defect that has underexpansion, it is too early again to add exhauxt valve opens, open at 60 ° of angles in advance, this is the main reason of C498 delivery temperature higher (the highest above 920 ℃) just, also be to cause thermal loss bigger than normal simultaneously, one of principal element that oil consumption is higher.
In sum, the torque characteristics that the port timing of C498 motor is top-priority when being high speed.This and U.S.'s expressway prosperity, average speed is generally all relevant than higher.And the situation of China is just in time opposite, and the big city road conditions is better, but traffic congestion is serious, and the speed of a motor vehicle does not increase; Rural area and outlying district, vehicle rareness, but road conditions is poor, and the various traffic tool comprise that manpower, animal-drawn vehicle coexist to travel on the road that the speed of a motor vehicle does not increase yet.Particularly Cherokee is as go-anywhere vehicle, the power coefficient of torque reserve is bigger, the motor majority all is to be operated under the slow-speed of revolution and the running on the lower load that (when 50 kilometers of level roads, fully loaded, direct high, speed per hour, engine speed is 1400 rev/mins only, and power is 8KW only; During 90 kilometers of speed per hours, also just 2470 rev/mins of engine speed, power is 22KW only).Therefore reasonably port timing should be the torque characteristics and the oil consumption characteristic of low speed in paying the utmost attention to, this not only tallies with the national condition, and the driving habits that meets the most of drivers of China (is got used to towards car to medium rotating speed with regard to change up, seldom throttle is floored, engine speed is seldom above 3000 rev/mins; Get used to selecting for use higher gear to be travelled simultaneously, i.e. the little throttle slow-speed of revolution of high tap position is travelled as far as possible, rather than the high rotating speed of low-grade location large throttle travels, to reduce fuel consumption per hundred kilometers).
Summary of the invention
Technical problem underlying to be solved in the utility model is, a kind of petrol engine camshaft is provided, suitably reduce intake valve and close angle and exhaust valve angle of advanced opening late, and low-speed torque characteristic in the improvement, thus reduce fuel consumption per hundred kilometers.
Technical problem to be solved in the utility model also is, a kind of petrol engine camshaft is provided, and it makes in improvement in the low-speed torque characteristic, can also keep its high speed characteristics by the improvement to intake cam and exhaust cam molded lines.
Above-mentioned technical problem of the present utility model can adopt following technological scheme to solve, a kind of petrol engine camshaft, this camshaft is the C498 engine cam, it comprises four cylinder intake cams and the four cylinder exhaust cams that are provided with at interval, be provided with two positioning pin holes in the end of this camshaft, the angle of the line of centres of described two positioning pin holes and the described first cylinder exhaust cam center line is 3.25 degree.
The line of centres of two positioning pin holes in the former C498 engine cam and the first cylinder exhaust cam center line angle are 1.75 degree, and camshaft of the present utility model is owing to change the two positioning pin hole lines of centres and the first cylinder exhaust cam center line angle into 3.25 degree, thereby after suitably assembling, port timing is changed into: the intake valve angle of advanced opening is 15.2 degree, it is 51.66 degree that intake valve closes the angle late, exhaust valve angle of advanced opening 46.6 degree, exhaust valve close angle 25.84 degree late.Realize proof, utilize camshaft of the present utility model, charging efficiency has obtained effective raising, has improved middle low-speed torque characteristic, has effectively improved middle low speed torque, is more suitable for the present road conditions in China.
Further, in the utility model, the intake cam of described camshaft and exhaust cam molded lines can be selected the superelevation equation of n th order n for use and revise in test and determine that its Base radius is 18.161mm, the angle of intake cam and exhaust cam is 103.5 °-105.5 °, and this angle the best is 104.5 °.Like this, after the intake cam of camshaft of the present utility model and exhaust cam molded lines are made amendment, make motor on above-mentioned charging efficiency and middle low speed torque have been improved the basis, its high speed efficient still can remain unchanged, adopt C498 petrol engine of the present utility model not only to have middle preferably low-speed performance thereby make, and high speed performance is preferably arranged.
Description of drawings
Fig. 1 various inlet is closed the charging efficiency at angle and the graph of a relation of rotating speed late;
Fig. 2 is different, and the exhaust angle of advanced opening influences schematic representation to engine performance;
Fig. 3 camshaft of the present utility model and wherein each cam position structural representation;
Fig. 4 camshaft end view of the present utility model;
Fig. 5 camshaft of the present utility model and former C498 engine cam are used for the moment of torsion comparison diagram of carburetor engine;
Fig. 6 camshaft of the present utility model and former C498 engine cam are used for the moment of torsion comparison diagram of electronic fuel injection engine.
Embodiment
As shown in Figure 3-4, camshaft of the present utility model is the camshaft that is used for the C498 motor, comprise the four cylinder intake cams 11,12,13,14 and the four cylinder exhaust cams 21,22,23,24 that are provided with at interval, be provided with two positioning pin holes 31,32 in the end of this camshaft, the angle of the line of centres L1 of described two positioning pin holes 31,32 and the described first cylinder exhaust cam, 21 centre line L 2 is 3.25 degree.Like this, after suitably assembling, adopt the port timing of camshaft C498 motor of the present utility model to change into: the intake valve angle of advanced opening is 15.2 degree, it is 51.66 degree that intake valve closes the angle late, and exhaust valve angle of advanced opening 46.6 degree, exhaust valve close angle 25.84 degree late, thereby make charging efficiency obtain effective raising, improved middle low-speed torque characteristic, effectively improved middle low speed torque, made this motor be more suitable for present road conditions in China.
Further, in the utility model, the cam profile of intake cam 11,12,13,14 is determined by following intake cam phase angle and air inlet lift relation table:
| Phase angle (degree) | Air inlet lift (nm) | Phase angle (degree) | Air inlet lift (nm) | Phase angle (degree) | Air inlet lift (nm) | Phase angle (degree) | Air inlet lift (nm) |
| -71 | 0 | -30 | 3835859 | 11 | 6104782 | 52 | 603479 |
| -70 | 0 | -29 | 3995761 | 12 | 6034531 | 53 | 519728 |
| -69 | 18 | -28 | 4152585 | 13 | 5958281 | 54 | 444750 |
| -68 | 366 | -27 | 4305983 | 14 | 5876082 | 55 | 378457 |
| -67 | 1608 | -26 | 4455637 | 15 | 5787990 | 56 | 320620 |
| -66 | 4315 | -25 | 4601255 | 16 | 5694077 | 57 | 270871 |
| -65 | 9056 | -24 | 4742569 | 17 | 5594426 | 58 | 228703 |
| -64 | 16398 | -23 | 4879335 | 18 | 5489130 | 59 | 193456 |
| -63 | 26914 | -22 | 5011330 | 19 | 5378303 | 60 | 164390 |
| -62 | 41169 | -21 | 5138353 | 20 | 5262071 | 61 | 140629 |
| -61 | 59734 | -20 | 5260228 | 21 | 5140576 | 62 | 121242 |
| -60 | 83175 | -19 | 5376796 | 22 | 5013983 | 63 | 105287 |
| -59 | 112261 | -18 | 5487913 | 23 | 4882468 | 64 | 91834 |
| -58 | 148087 | -17 | 5593457 | 24 | 4746234 | 65 | 80046 |
| -57 | 191552 | -16 | 5693321 | 25 | 4605507 | 66 | 69218 |
| -56 | 243317 | -15 | 5787409 | 26 | 4460531 | 67 | 58830 |
| -55 | 303836 | -14 | 5875647 | 27 | 4311578 | 68 | 48578 |
| -54 | 373372 | -13 | 5957963 | 28 | 4158940 | 69 | 38334 |
| -53 | 452025 | -12 | 6034304 | 29 | 4002942 | 70 | 28104 |
| -52 | 539755 | -11 | 6104626 | 30 | 3843931 | 71 | 17907 |
| -51 | 636393 | -10 | 6168894 | 31 | 3682281 | 72 | 9517 |
| -50 | 741665 | -9 | 6227078 | 32 | 3518398 | 73 | 3755 |
| -49 | 855210 | -8 | 6279161 | 33 | 3352717 | 74 | 633 |
| -48 | 976591 | -7 | 6325126 | 34 | 3185699 | 75 | 0 |
| -47 | 1105310 | -6 | 6364965 | 35 | 3017835 | ||
| -46 | 1240822 | -5 | 6398675 | 36 | 2849648 | ||
| -45 | 1382544 | -4 | 6426253 | 37 | 2681681 | ||
| -44 | 1529869 | -3 | 6447697 | 38 | 2514507 | ||
| -43 | 1682169 | -2 | 6463013 | 39 | 2348723 | ||
| -42 | 1838808 | -1 | 6472200 | 40 | 2184945 | ||
| -41 | 1999147 | 0 | 6475263 | 41 | 2023804 | ||
| -40 | 2162550 | 1 | 6472200 | 42 | 1865949 | ||
| -39 | 2328391 | 2 | 6463013 | 43 | 1712026 | ||
| -38 | 2496053 | 3 | 6447697 | 44 | 1562689 | ||
| -37 | 2664942 | 4 | 6426254 | 45 | 1418577 | ||
| -36 | 2834477 | 5 | 6398680 | 46 | 1280316 | ||
| -35 | 3004102 | 6 | 6364976 | 47 | 1148500 |
| -34 | 3173285 | 7 | 6325147 | 48 | 1023687 | ||
| -33 | 3341520 | 8 | 6279199 | 49 | 906380 | ||
| -32 | 3508325 | 9 | 6227144 | 50 | 797019 | ||
| -31 | 3673246 | 10 | 6168996 | 51 | 695963 |
The molded lines of the exhaust cam 21,22,23,24 in this camshaft is determined by the relation table of following exhaust cam phase angle and exhaust lift:
| Phase angle (degree) | Exhaust lift (nm) | Phase angle (degree) | Exhaust lift (nm) | Phase angle (degree) | Exhaust lift (nm) | Phase angle (degree) | Exhaust lift (nm) |
| -69 | 0 | -28 | 4256416 | 13 | 6069914 | 54 | 560668 |
| -68 | 519 | -27 | 4410486 | 14 | 5987798 | 55 | 486295 |
| -67 | 4369 | -26 | 4560803 | 15 | 5899814 | 56 | 419588 |
| -66 | 11927 | -25 | 4707068 | 16 | 5806037 | 57 | 360333 |
| -65 | 23261 | -24 | 4849010 | 17 | 5706556 | 58 | 308228 |
| -64 | 37515 | -23 | 4986377 | 18 | 5601473 | 59 | 262871 |
| -63 | 52547 | -22 | 5118943 | 19 | 5490904 | 60 | 223778 |
| -62 | 69451 | -21 | 5246504 | 20 | 5374986 | 61 | 190382 |
| -61 | 89739 | -20 | 5368878 | 21 | 5253871 | 62 | 162054 |
| -60 | 114839 | -19 | 5485901 | 22 | 5127728 | 63 | 138118 |
| -59 | 146111 | -18 | 5597430 | 23 | 4996747 | 64 | 117870 |
| -58 | 184692 | -17 | 5703339 | 24 | 4861140 | 65 | 100601 |
| -57 | 231437 | -16 | 5803522 | 25 | 4721139 | 66 | 85629 |
| -56 | 286936 | -15 | 5897884 | 26 | 4576998 | 67 | 72316 |
| -55 | 351538 | -14 | 5986350 | 27 | 4428998 | 68 | 60110 |
| -54 | 425385 | -13 | 6068855 | 28 | 4277440 | 69 | 48563 |
| -53 | 508454 | -12 | 6145347 | 29 | 4122651 | 70 | 37322 |
| -52 | 600590 | -11 | 6215784 | 30 | 3964984 | 71 | 26228 |
| -51 | 701521 | -10 | 6280137 | 31 | 3804818 | 72 | 15094 |
| -50 | 810892 | -9 | 6338384 | 32 | 3642553 | 73 | 7601 |
| -49 | 928281 | -8 | 6390507 | 33 | 3478620 | 74 | 2435 |
| -48 | 1053209 | -7 | 6436497 | 34 | 3313469 | 75 | 139 |
| -47 | 1185157 | -6 | 6476350 | 35 | 3147575 | 76 | 5 |
| -46 | 1323570 | -5 | 6510064 | 36 | 2981437 | 77 | 0 |
| -45 | 1467872 | -4 | 6537641 | 37 | 2815572 | ||
| -44 | 1617469 | -3 | 6559084 | 38 | 2650517 | ||
| -43 | 1771760 | -2 | 6574398 | 39 | 2486824 | ||
| -42 | 1930134 | -1 | 6583583 | 40 | 2325051 | ||
| -41 | 2091987 | 0 | 6586645 | 41 | 2165775 | ||
| -40 | 2256709 | 1 | 6583583 | 42 | 2009566 | ||
| -39 | 2423710 | 2 | 6574399 | 43 | 1856999 | ||
| -38 | 2592404 | 3 | 6559085 | 44 | 1708636 | ||
| -37 | 2762219 | 4 | 6537645 | 45 | 1565029 | ||
| -36 | 2932600 | 5 | 6510079 | 46 | 1426707 |
| -35 | 3103015 | 6 | 6476383 | 47 | 1294172 | ||
| -34 | 3272947 | 7 | 6436565 | 48 | 1167887 | ||
| -33 | 3441902 | 8 | 6390631 | 49 | 1048269 | ||
| -32 | 3609410 | 9 | 6338597 | 50 | 935686 | ||
| -31 | 3775026 | 10 | 6280478 | 51 | 830441 | ||
| -30 | 3938326 | 11 | 6216301 | 52 | 732767 | ||
| -29 | 4098913 | 12 | 6146100 | 53 | 642819 |
Wherein, the Base radius of above-mentioned cam profile is 18.161mm, and the angle of intake cam and exhaust cam is 103.5 °-105.5 °, and the margin of error of above-mentioned lift is ± 0.01mm.
As shown in Figure 3, as one preferred embodiment, in the camshaft of the present utility model, the angle the best between intake cam and the exhaust cam is 104.5 °.
Be illustrated in figure 5 as the moment of torsion comparison diagram that camshaft of the present utility model and former C498 engine cam are used for carburetor engine, its longitudinal axis is represented moment of torsion, transverse axis is represented rotating speed, the former C498 engine cam of grey curve representation axial curve wherein, and black curve is represented C498 engine cam axial curve of the present utility model.By contrasting significantly among this figure, the middle low speed torque of the utility model C498 engine cam is compared with the moment of torsion of former C498 engine cam and has been obtained improving significantly, and high speed performance does not have change or change seldom substantially, adopt C498 motor of the present utility model not only to have middle preferably low-speed performance thereby make, and high speed performance is preferably arranged.
Be illustrated in figure 6 as the moment of torsion comparison diagram that camshaft of the present utility model and former C498 engine cam are used for electronic fuel injection engine.Its longitudinal axis is represented moment of torsion, and transverse axis is represented rotating speed, and black curve is wherein represented former C498 engine cam axial curve, and grey curve representation C498 engine cam of the present utility model axial curve.By contrasting significantly among this figure, when being used for electronic fuel injection engine, the middle low speed torque of the utility model C498 engine cam is compared with the moment of torsion of former C498 engine cam and has equally also been obtained improving significantly, and high speed performance does not have to change substantially or slightly raising, adopt C498 motor of the present utility model not only to have middle preferably low-speed performance thereby make, and high speed performance is preferably arranged.
The foregoing description is a better embodiment of the present utility model, only is used to illustrate the utility model, but not is used to limit the utility model.
Claims (3)
1, a kind of petrol engine camshaft, this camshaft is the C498 engine cam, it comprises four cylinder intake cams and the four cylinder exhaust cams that are provided with at interval, be provided with two positioning pin holes in the end of this camshaft, it is characterized in that the angle of the line of centres of described two positioning pin holes and the described first cylinder exhaust cam center line is 3.25 degree.
2, petrol engine camshaft as claimed in claim 1 is characterized in that, the cam profile of described intake cam is determined by following intake cam phase angle and air inlet lift relation:
The lift of-71 degree is that the lift of 0nm-22 degree is that the lift that 5011330nm 27 spends is 4311578nm
The lift of-70 degree is that the lift of 0nm-21 degree is that the lift that 5138353nm 28 spends is 4158940nm
The lift of-69 degree is that the lift of 18nm-20 degree is that the lift that 5260228nm 29 spends is 4002942nm
The lift of-68 degree is that the lift of 366nm-19 degree is that the lift that 5376796nm 30 spends is 3843931nm
The lift of-67 degree is that the lift of 1608nm-18 degree is that the lift that 5487913nm 31 spends is 3682281nm
The lift of-66 degree is that the lift of 4315nm-17 degree is that the lift that 5593457nm 32 spends is 3518398nm
The lift of-65 degree is that the lift of 9056nm-16 degree is that the lift that 5693321nm 33 spends is 3352717nm
The lift of-64 degree is that the lift of 16398nm-15 degree is that the lift that 5787409nm 34 spends is 3185699nm
The lift of-63 degree is that the lift of 26914nm-14 degree is that the lift that 5875647nm 35 spends is 3017835nm
The lift of-62 degree is that the lift of 41169nm-13 degree is that the lift that 5957963nm 36 spends is 2849648nm
The lift of-61 degree is that the lift of 59734nm-12 degree is that the lift that 6034304nm 37 spends is 2681681nm
The lift of-60 degree is that the lift of 83175nm-11 degree is that the lift that 6104626nm 38 spends is 2514507nm
The lift of-59 degree is that the lift of 112261nm-10 degree is that the lift that 6168894nm 39 spends is 2348723nm
The lift of-58 degree is that the lift of 148087nm-9 degree is that the lift that 6227078nm 40 spends is 2184945nm
The lift of-57 degree is that the lift of 191552nm-8 degree is that the lift that 6279161nm 41 spends is 2023804nm
The lift of-56 degree is that the lift of 243317nm-7 degree is that the lift that 6325126nm 42 spends is 186594 nm
The lift of-55 degree is that the lift of 30383 nm-6 degree is that the lift that 6364965nm 43 spends is 1712026nm
The lift of-54 degree is that the lift of 373372nm-5 degree is that the lift that 6398675nm 44 spends is 1562689nm
The lift of-53 degree is that the lift of 452025nm-4 degree is that the lift that 6426253nm 45 spends is 1418577nm
The lift of-52 degree is that the lift of 539755nm-3 degree is that the lift that 6447697nm 46 spends is 1280316nm
The lift of-51 degree is that the lift of 636393nm-2 degree is that the lift that 6463013nm 47 spends is 1148500nm
The lift of-50 degree is that the lift of 741665nm-1 degree is that the lift that 6472200nm 48 spends is 1023687nm
The lift of-49 degree is that the lift of 855210 nm, 0 degree is that the lift that 6475263nm 49 spends is 906380nm
The lift of-48 degree is that the lift of 976591 nm, 1 degree is that the lift that 6472200nm 50 spends is 797019nm
The lift of-47 degree is that the lift of 1105310nm 2 degree is that the lift that 6463013nm 51 spends is 695963nm
The lift of-46 degree is that the lift of 1240822nm 3 degree is that the lift that 6447697nm 52 spends is 603479nm
The lift of-45 degree is that the lift of 1382544nm 4 degree is that the lift that 6426254nm 53 spends is 519728nm
The lift of-44 degree is that the lift of 1529869nm 5 degree is that the lift that 6398680nm 54 spends is 444750nm
The lift of-43 degree is that the lift of 1682169nm 6 degree is that the lift that 6364976nm 55 spends is 378457nm
The lift of-42 degree is that the lift of 1838808nm 7 degree is that the lift that 6325147nm 56 spends is 320620nm
The lift of-41 degree is that the lift of 1999147nm 8 degree is that the lift that 6279199nm 57 spends is 270871nm
The lift of-40 degree is that the lift of 2162550nm 9 degree is that the lift that 6227144nm 58 spends is 228703nm
The lift of-39 degree is that the lift of 2328391nm 10 degree is that the lift that 6168996nm 59 spends is 193456nm
The lift of-38 degree is that the lift of 2496053nm 11 degree is that the lift that 6104782nm 60 spends is 164390nm
The lift of-37 degree is that the lift of 2664942nm 12 degree is that the lift that 6034531nm 61 spends is 140629nm
The lift of-36 degree is that the lift of 2834477nm 13 degree is that the lift that 5958281nm 62 spends is 121242nm
The lift of-35 degree is that the lift of 3004102nm 14 degree is that the lift that 5876082nm 63 spends is 105287nm
The lift of-34 degree is that the lift of 3173285nm 15 degree is that the lift that 5787990nm 64 spends is 91834nm
The lift of-33 degree is that the lift of 3341520nm 16 degree is that the lift that 5694077nm 65 spends is 80046nm
The lift of-32 degree is that the lift of 3508325nm 17 degree is that the lift that 5594426nm 66 spends is 69218nm
The lift of-31 degree is that the lift of 3673246nm 18 degree is that the lift that 5489130nm 67 spends is 58830nm
The lift of-30 degree is that the lift of 3835859nm 19 degree is that the lift that 5378303nm 68 spends is 48578nm
The lift of-29 degree is that the lift of 3995761nm 20 degree is that the lift that 5262071nm 69 spends is 38334nm
The lift of-28 degree is that the lift of 4152585nm 21 degree is that the lift that 5140576nm 70 spends is 28104nm
The lift of-27 degree is that the lift of 4305983nm 22 degree is that the lift that 5013983nm 71 spends is 17907nm
The lift of-26 degree is that the lift of 4455637nm 23 degree is that the lift that 4882468nm 72 spends is 9517nm
The lift of-25 degree is that the lift of 4601255nm 24 degree is that the lift that 4746234nm 73 spends is 3755nm
The lift of-24 degree is that the lift of 4742569nm 25 degree is that the lift that 4605507nm 74 spends is 633nm
The lift of-23 degree is that the lift of 4879335nm 26 degree is that the lift that 4460531nm 75 spends is 0nm
Exhaust cam molded lines in this camshaft is determined by the relation of following exhaust cam phase angle and exhaust lift:
The lift of-69 degree is that the lift of 0nm-20 degree is that the lift that 5368878nm 29 spends is 4122651nm
The lift of-68 degree is that the lift of 519nm-19 degree is that the lift that 5485901nm 30 spends is 3964984nm
The lift of-67 degree is that the lift of 4369nm-18 degree is that the lift that 5597430nm 31 spends is 3804818nm
The lift of-66 degree is that the lift of 11927nm-17 degree is that the lift that 5703339nm 32 spends is 3642553nm
The lift of-65 degree is that the lift of 23261nm-16 degree is that the lift that 5803522nm 33 spends is 3478620nm
The lift of-64 degree is that the lift of 37515nm-15 degree is that the lift that 5897884nm 34 spends is 3313469nm
The lift of-63 degree is that the lift of 52547nm-14 degree is that the lift that 5986350nm 35 spends is 3147575nm
The lift of-62 degree is that the lift of 69451nm-13 degree is that the lift that 6068855nm 36 spends is 2981437nm
The lift of-61 degree is that the lift of 89739nm-12 degree is that the lift that 6145347nm 37 spends is 2815572nm
The lift of-60 degree is that the lift of 114839nm-11 degree is that the lift that 6215784nm 38 spends is 2650517nm
The lift of-59 degree is that the lift of 146111nm-10 degree is that the lift that 6280137nm 39 spends is 2486824nm
The lift of-58 degree is that the lift of 184692nm-9 degree is that the lift that 6338384nm 40 spends is 2325051nm
The lift of-57 degree is that the lift of 231437nm-8 degree is that the lift that 6390507nm 41 spends is 2165775nm
The lift of-56 degree is that the lift of 286936nm-7 degree is that the lift that 6436497nm 42 spends is 2009566nm
The lift of-55 degree is that the lift of 351538nm-6 degree is that the lift that 6476350nm 43 spends is 1856999nm
The lift of-54 degree is that the lift of 425385nm-5 degree is that the lift that 6510064nm 44 spends is 1708636nm
The lift of-53 degree is that the lift of 508454nm-4 degree is that the lift that 6537641nm 45 spends is 1565029nm
The lift of-52 degree is that the lift of 600590nm-3 degree is that the lift that 6559084nm 46 spends is 1426707nm
The lift of-51 degree is that the lift of 701521nm-2 degree is that the lift that 6574398nm 47 spends is 1294172nm
The lift of-50 degree is that the lift of 810892nm-1 degree is that the lift that 6583583nm 48 spends is 1167887nm
The lift of-49 degree is that the lift of 928281nm 0 degree is that the lift that 6586645nm 49 spends is 1048269nm
The lift of-48 degree is that the lift of 1053209nm 1 degree is that the lift that 6583583nm 50 spends is 935686nm
The lift of-47 degree is that the lift of 1185157nm 2 degree is that the lift that 6574399nm 51 spends is 830441nm
The lift of-46 degree is that the lift of 1323570nm 3 degree is that the lift that 6559085nm 52 spends is 732767nm
The lift of-45 degree is that the lift of 1467872nm 4 degree is that the lift that 6537645nm 53 spends is 642819nm
The lift of-44 degree is that the lift of 1617469nm 5 degree is that the lift that 6510079nm 54 spends is 560668nm
The lift of-43 degree is that the lift of 1771760nm 6 degree is that the lift that 6476383nm 55 spends is 486295nm
The lift of-42 degree is that the lift of 1930134nm 7 degree is that the lift that 6436565nm 56 spends is 419588nm
The lift of-41 degree is that the lift of 2091987nm 8 degree is that the lift that 6390631nm 57 spends is 360333nm
The lift of-40 degree is that the lift of 2256709nm 9 degree is that the lift that 6338597nm 58 spends is 308228nm
The lift of-39 degree is that the lift of 2423710nm 10 degree is that the lift that 6280478nm 59 spends is 262871nm
The lift of-38 degree is that the lift of 2592404nm 11 degree is that the lift that 6216301nm 60 spends is 223778nm
The lift of-37 degree is that the lift of 2762219nm 12 degree is that the lift that 6146100nm 61 spends is 190382nm
The lift of-36 degree is that the lift of 2932600nm 13 degree is that the lift that 6069914nm 62 spends is 162054nm
The lift of-35 degree is that the lift of 3103015nm 14 degree is that the lift that 5987798nm 63 spends is 138118nm
The lift of-34 degree is that the lift of 3272947nm 15 degree is that the lift that 5899814nm 64 spends is 117870nm
The lift of-33 degree is that the lift of 3441902nm 16 degree is that the lift that 5806037nm 65 spends is 100601nm
The lift of-32 degree is that the lift of 3609410nm 17 degree is that the lift that 5706556nm 66 spends is 85629nm
The lift of-31 degree is that the lift of 3775026nm 18 degree is that the lift that 5601473nm 67 spends is 72316nm
The lift of-30 degree is that the lift of 3938326nm 19 degree is that the lift that 5490904nm 68 spends is 60110nm
The lift of-29 degree is that the lift of 4098913nm 20 degree is that the lift that 5374986nm 69 spends is 48563nm
The lift of-28 degree is that the lift of 4256416nm 21 degree is that the lift that 5253871nm 70 spends is 37322nm
The lift of-27 degree is that the lift of 4410486nm 22 degree is that the lift that 5127728nm 71 spends is 26228nm
The lift of-26 degree is that the lift of 4560803nm 23 degree is that the lift that 4996747nm 72 spends is 15094nm
The lift of-25 degree is that the lift of 4707068nm 24 degree is that the lift that 4861140nm 73 spends is 7601nm
The lift of-24 degree is that the lift of 4849010nm 25 degree is that the lift that 4721139nm 74 spends is 2435nm
The lift of-23 degree is that the lift of 4986377nm 26 degree is that the lift that 4576998nm 75 spends is 139nm
The lift of-22 degree is that the lift of 5118943nm 27 degree is that the lift that 4428998nm 76 spends is 5nm
The lift of-21 degree is that the lift of 5246504nm 28 degree is that the lift that 4277440nm 77 spends is 0nm
Wherein, Base radius is 18.161mm, and the angle of intake cam and exhaust cam is 103.5 °-105.5 °, and the margin of error of above-mentioned lift is ± 0.01mm.
3, petrol engine camshaft as claimed in claim 2 is characterized in that, the angle between described intake cam and the exhaust cam is 104.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015760 CN2797643Y (en) | 2005-04-26 | 2005-04-26 | Camshaft of petrol motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015760 CN2797643Y (en) | 2005-04-26 | 2005-04-26 | Camshaft of petrol motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797643Y true CN2797643Y (en) | 2006-07-19 |
Family
ID=36868883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015760 Expired - Fee Related CN2797643Y (en) | 2005-04-26 | 2005-04-26 | Camshaft of petrol motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797643Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375211A (en) * | 2012-04-20 | 2013-10-30 | 福特全球技术公司 | Camshaft |
| CN111042945A (en) * | 2019-10-31 | 2020-04-21 | 哈尔滨工业大学（威海） | Engine exhaust gas layering air intake system |
-
2005
- 2005-04-26 CN CN 200520015760 patent/CN2797643Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375211A (en) * | 2012-04-20 | 2013-10-30 | 福特全球技术公司 | Camshaft |
| CN111042945A (en) * | 2019-10-31 | 2020-04-21 | 哈尔滨工业大学（威海） | Engine exhaust gas layering air intake system |
| CN111042945B (en) * | 2019-10-31 | 2021-06-15 | 哈尔滨工业大学（威海） | Engine exhaust gas layering air intake system |
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