CN201354654Y - Cam molded line for motorcycle engine - Google Patents
Cam molded line for motorcycle engine Download PDFInfo
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- CN201354654Y CN201354654Y CNU2008202052956U CN200820205295U CN201354654Y CN 201354654 Y CN201354654 Y CN 201354654Y CN U2008202052956 U CNU2008202052956 U CN U2008202052956U CN 200820205295 U CN200820205295 U CN 200820205295U CN 201354654 Y CN201354654 Y CN 201354654Y
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Abstract
The utility model discloses a cam molded line for a motorcycle engine, which comprises an air inlet molded line, an air outlet molded line, a cam width mark and a cam height mark, wherein an included angle between an air inlet cam and an air outlet cam is 109 plus or minus 30 degrees; and the diameter of a base circle of the air inlet cam and the air outlet cam is 25 mm. After the cam molded line is adopted, the cam molded line distribution is reasonable, and air distribution phase and good air valve movement rule can be ensured. When the engine works, an air valve lever is not engaged from the cam molded line in discontinuity, the knocking noise between the air valve lever and the cam is eliminated, the cam air distribution phase and the smoothness of the air inlet and air outlet of the air valve are ensured, and the dynamic property is improved. Simultaneously, waste air is prevented from backwards flowing, and the optimum combustion effect after the fresh mixed air enters a combustion chamber is ensured.
Description
Technical field
The utility model relates to a kind of motorcycle engine cam, relates in particular to a kind of motorcycle engine cam profile.
Background technique
The motorcycle engine valve cam has conclusive effect to the port timing of motor and the characteristics of motion of valve, and the noise of its power character, Economy and motor is had critical effect.During motorcycle engine work, its valve cam should with the contacting of valve rocker continuity, and can not contact with the rocking arm continuity to the molded lines between the cam base circle owing to the cam top lift now, promptly do not slide, cause valve rocker to drop on the cam base circle suddenly from the cam top lift, form the sound that beats between valve rocker and the cam, make the noise of motor big; And the distribution of angle between existing motorcycle engine intake cam and the exhaust cam makes the noise of motor big equally.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of motorcycle engine cam profile to be provided.It makes the linear valve motion rule that determines of motorcycle engine cam type more reasonable, can reduce the noise and the exhaust gas discharging of motor greatly.
For reaching above-mentioned purpose, motorcycle engine cam profile of the present utility model comprises intake cam molded lines, exhaust cam molded lines, wide, the cam overall height of cam.Its manufacturing technology requires except that pressing common surface treatment, and the air inlet molded lines and the exhaust molded lines of cam are as shown in the table:
Table one is an intake cam molded lines table;
| Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) |
| 0° | 0.000 | 40° | 1.528 | 80° | 6.311 | 120° | 2.049 | 160° | 0.151 |
| 1° | 0.001 | 41° | 1.631 | 81° | 6.360 | 121° | 1.924 | 161° | 0.141 |
| 2° | 0.004 | 42° | 1.739 | 82° | 6.404 | 122° | 1.805 | 162° | 0.132 |
| 3° | 0.008 | 43° | 1.851 | 83° | 6.441 | 123° | 1.692 | 163° | 0.123 |
| 4° | 0.013 | 44° | 1.968 | 84° | 6.473 | 124° | 1.584 | 164° | 0.114 |
| 5° | 0.020 | 45° | 2.090 | 85° | 6.498 | 125° | 1.481 | 165° | 0.105 |
| 6° | 0.029 | 46° | 2.216 | 86° | 6.517 | 126° | 1.384 | 166° | 0.097 |
| 7° | 0.039 | 47° | 2.347 | 87° | 6.529 | 127° | 1.291 | 167° | 0.090 |
| 8° | 0.051 | 48° | 2.482 | 88° | 6.532 | 128° | 1.203 | 168° | 0.082 |
| 9° | 0.064 | 49° | 2.622 | 89° | 6.528 | 129° | 1.120 | 169° | 0.075 |
| 10° | 0.079 | 50° | 2.766 | 90° | 6.516 | 130° | 1.041 | 170° | 0.068 |
| 11° | 0.096 | 51° | 2.914 | 91° | 6.497 | 131° | 0.967 | 171° | 0.061 |
| 12° | 0.114 | 52° | 3.065 | 92° | 6.470 | 132° | 0.898 | 172° | 0.055 |
| 13° | 0.133 | 53° | 3.219 | 93° | 6.434 | 133° | 0.832 | 173° | 0.049 |
| 14° | 0.154 | 54° | 3.374 | 94° | 6.390 | 134° | 0.771 | 174° | 0.044 |
| 15° | 0.177 | 55° | 3.529 | 95° | 6.335 | 135° | 0.714 | 175° | 0.038 |
| 16° | 0.201 | 56° | 3.681 | 96° | 6.264 | 136° | 0.661 | 176° | 0.033 |
| 17° | 0.227 | 57° | 3.832 | 97° | 6.176 | 137° | 0.611 | 177° | 0.028 |
| 18° | 0.255 | 58° | 3.981 | 98° | 6.070 | 138° | 0.566 | 178° | 0.024 |
| 19° | 0.284 | 59° | 4.128 | 99° | 5.946 | 139° | 0.524 | 179° | 0.020 |
| 20° | 0.314 | 60° | 4.272 | 100° | 5.804 | 140° | 0.487 | 180° | 0.016 |
| 21° | 0.347 | 61° | 4.413 | 101° | 5.642 | 141° | 0.453 | 181° | 0.013 |
| 22° | 0.380 | 62° | 4.551 | 102° | 5.459 | 142° | 0.422 | 182° | 0.009 |
| 23° | 0.416 | 63° | 4.686 | 103° | 5.254 | 143° | 0.396 | 183° | 0.001 |
| 24° | 0.453 | 64° | 4.818 | 104° | 5.024 | 144° | 0.373 | 184° | 0.000 |
| 25° | 0.492 | 65° | 4.946 | 105° | 4.775 | 145° | 0.353 | ||
| 26° | 0.533 | 66° | 5.069 | 106° | 4.532 | 146° | 0.337 | ||
| 27° | 0.579 | 67° | 5.189 | 107° | 4.300 | 147° | 0.321 | ||
| 28° | 0.628 | 68° | 5.305 | 108° | 4.078 | 148° | 0.305 | ||
| 29° | 0.680 | 69° | 5.416 | 109° | 3.865 | 149° | 0.290 | ||
| 30° | 0.738 | 70° | 5.523 | 110° | 3.661 | 150° | 0.275 |
Table two is an exhaust cam molded lines table.
| Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) | Angle | Lift (mm) |
| 0° | 0.000 | 33° | 2.295 | 66° | 6.359 | 99° | 2.976 | 132° | 0.284 |
| 1° | 0.001 | 34° | 2.453 | 67° | 6.345 | 100° | 2.825 | 133° | 0.261 |
| 2° | 0.005 | 35° | 2.621 | 68° | 6.322 | 101° | 2.677 | 134° | 0.239 |
| 3° | 0.014 | 36° | 2.797 | 69° | 6.293 | 102° | 2.534 | 135° | 0.219 |
| 4° | 0.026 | 37° | 2.982 | 70° | 6.257 | 103° | 2.395 | 136° | 0.199 |
| 5° | 0.042 | 38° | 3.176 | 71° | 6.215 | 104° | 2.260 | 137° | 0.181 |
| 6° | 0.062 | 39° | 3.380 | 72° | 6.166 | 105° | 2.131 | 138° | 0.165 |
| 7° | 0.086 | 40° | 3.594 | 73° | 6.111 | 106° | 2.006 | 139° | 0.149 |
| 8° | 0.113 | 41° | 3.818 | 74° | 6.050 | 107° | 1.886 | 140° | 0.135 |
| 9° | 0.145 | 42° | 4.051 | 75° | 5.983 | 108° | 1.771 | 141° | 0.123 |
| 10° | 0.181 | 43° | 4.289 | 76° | 5.910 | 109° | 1.660 | 142° | 0.111 |
| 11° | 0.220 | 44° | 4.522 | 77° | 5.831 | 110° | 1.555 | 143° | 0.099 |
| 12° | 0.264 | 45° | 4.744 | 78° | 5.747 | 111° | 1.454 | 144° | 0.088 |
| 13° | 0.312 | 46° | 4.952 | 79° | 5.657 | 112° | 1.357 | 145° | 0.078 |
| 14° | 0.365 | 47° | 5.143 | 80° | 5.561 | 113° | 1.265 | 146° | 0.069 |
| 15° | 0.421 | 48° | 5.316 | 81° | 5.460 | 114° | 1.178 | 147° | 0.060 |
| 16° | 0.483 | 49° | 5.469 | 82° | 5.354 | 115° | 1.095 | 148° | 0.051 |
| 17° | 0.548 | 50° | 5.603 | 83° | 5.243 | 116° | 1.017 | 149° | 0.044 |
| 18° | 0.619 | 51° | 5.721 | 84° | 5.128 | 117° | 0.943 | 150° | 0.037 |
| 19° | 0.694 | 52° | 5.825 | 85° | 5.007 | 118° | 0.873 | 151° | 0.030 |
| 20° | 0.774 | 53° | 5.915 | 86° | 4.882 | 119° | 0.807 | 152° | 0.024 |
| 21° | 0.859 | 54° | 5.995 | 87° | 4.753 | 120° | 0.746 | 153° | 0.019 |
| 22° | 0.950 | 55° | 6.065 | 88° | 4.620 | 121° | 0.687 | 154° | 0.015 |
| 23° | 1.046 | 56° | 6.125 | 89° | 4.484 | 122° | 0.634 | 155° | 0.011 |
| 24° | 1.147 | 57° | 6.179 | 90° | 4.344 | 123° | 0.583 | 156° | 0.007 |
| 25° | 1.254 | 58° | 6.224 | 91° | 4.200 | 124° | 0.537 | 157° | 0.005 |
| 26° | 1.365 | 59° | 6.263 | 92° | 4.054 | 125° | 0.495 | 158° | 0.002 |
| 27° | 1.482 | 60° | 6.295 | 93° | 3.905 | 126° | 0.455 | 159° | 0.001 |
| 28° | 1.604 | 61° | 6.321 | 94° | 3.754 | 127° | 0.420 | 160° | 0.000 |
| 29° | 1.731 | 62° | 6.341 | 95° | 3.600 | 128° | 0.388 | ||
| 30° | 1.863 | 63° | 6.355 | 96° | 3.445 | 129° | 0.359 | ||
| 31° | 2.001 | 64° | 6.363 | 97° | 3.288 | 130° | 0.334 | ||
| 32° | 2.144 | 65° | 6.365 | 98° | 3.131 | 131° | 0.308 |
Angle between intake cam and the exhaust cam is 109 ° ± 30 ', the base circle diameter (BCD) of inlet and outlet cam is 25mm; The maximum lift deviation of inlet and outlet cam is ± 0.1mm.
The utility model the angle between intake cam and the exhaust cam is limited to be 109 ° ± 30 ', the base circle diameter (BCD) of inlet and outlet cam is 25mm.Adopt above-mentioned cam profile, cam profile is distributed rationally, can guarantee port timing and valve motion rule preferably, assurance port timing and valve motion rule preferably; When engine operation, valve rocker no longer discontinuity breaks away from cam profile, has eliminated the noise that beats between valve rocker and the cam, guarantees that cam timing and valve inlet and outlet are unimpeded, and power character is improved.Prevent the waste gas refluence simultaneously, guaranteed the best combustion effect after the fresh mix air enters the firing chamber.
Description of drawings
Fig. 1 is the utility model cam structure schematic representation;
Fig. 2 is the cam angle schematic representation;
Fig. 3 be among Fig. 1 intake cam along A-A to sectional view:
Fig. 4 be among Fig. 2 exhaust cam along B-B to sectional view.
Embodiment
Shown in Fig. 1-4, the utility model is processed this cam with described molded lines, motorcycle engine cam profile of the present utility model, comprise intake cam molded lines, exhaust cam molded lines, cam is wide, cam is high, angle on the cam between intake cam 1 and the exhaust cam 2 is 109 ° ± 30 ', the base circle diameter (BCD) of inlet and outlet cam is 25mm; The maximum lift deviation of inlet and outlet cam is ± 0.1mm.This cam after the processing is contained in the engine valve actuating mechanism by existing installation method.As shown in Figure 3, intake cam a point 184 ° in the b point are the active sections of intake cam 1, and the maximum angle that is opened to IC Intake Valve Closes from intake valve is 98 °; As shown in Figure 4, exhaust cam c point 160 ° in the d point are the active sections of exhaust cam 2, and the maximum angle that is opened to exhaust valve closing from exhaust valve is 65 °.
The structure of this cam has preferable port timing and good valve motion rule, when engine operation, valve rocker no longer discontinuity breaks away from cam profile, eliminated the noise that beats between valve rocker and the cam, guarantee that cam timing and valve inlet and outlet are unimpeded, power character is improved.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. motorcycle engine cam profile comprises intake cam molded lines, exhaust cam molded lines, cam is wide, cam is high, it is characterized in that:
(1) the intake cam lift is:
Below whenever increase progressively an angle, the lift of the corresponding rising of cam
0 ° of lift is that 40 ° of lifts of 0.000mm are that 80 ° of lifts of 1.528mm are that 120 ° of lifts of 6.311mm are that 160 ° of lifts of 2.049mm are 0.151mm
1 ° of lift is that 41 ° of lifts of 0.001mm are that 81 ° of lifts of 1.631mm are that 121 ° of lifts of 6.360mm are that 161 ° of lifts of 1.924mm are 0.141mm
2 ° of lifts are that 42 ° of lifts of 0.004mm are that 82 ° of lifts of 1.739mm are that 122 ° of lifts of 6.404mm are that 162 ° of lifts of 1.805mm are 0.132mm
3 ° of lifts are that 43 ° of lifts of 0.008mm are that 83 ° of lifts of 1.851mm are that 123 ° of lifts of 6.441mm are that 163 ° of lifts of 1.692mm are 0.123mm
4 ° of lifts are that 44 ° of lifts of 0.013mm are that 84 ° of lifts of 1.968mm are that 124 ° of lifts of 6.473mm are that 164 ° of lifts of 1.584mm are 0.114mm
5 ° of lifts are that 45 ° of lifts of 0.020mm are that 85 ° of lifts of 2.090mm are that 125 ° of lifts of 6.498mm are that 165 ° of lifts of 1.481mm are 0.105mm
6 ° of lifts are that 46 ° of lifts of 0.029mm are that 86 ° of lifts of 2.216mm are that 126 ° of lifts of 6.517mm are that 166 ° of lifts of 1.384mm are 0.097mm
7 ° of lifts are that 47 ° of lifts of 0.039mm are that 87 ° of lifts of 2.347mm are that 127 ° of lifts of 6.529mm are that 167 ° of lifts of 1.291mm are 0.090mm
8 ° of lifts are that 48 ° of lifts of 0.051mm are that 88 ° of lifts of 2.482mm are that 128 ° of lifts of 6.532mm are that 168 ° of lifts of 1.203mm are 0.082mm
9 ° of lifts are that 49 ° of lifts of 0.064mm are that 89 ° of lifts of 2.622mm are that 129 ° of lifts of 6.528mm are that 169 ° of lifts of 1.120mm are 0.075mm
10 ° of lifts are that 50 ° of lifts of 0.079mm are that 90 ° of lifts of 2.766mm are that 130 ° of lifts of 6.516mm are that 170 ° of lifts of 1.041mm are 0.068mm
11 ° of lifts are that 51 ° of lifts of 0.096mm are that 91 ° of lifts of 2.914mm are that 131 ° of lifts of 6.497mm are that 171 ° of lifts of 0.967mm are 0.061mm
12 ° of lifts are that 52 ° of lifts of 0.114mm are that 92 ° of lifts of 3.065mm are that 132 ° of lifts of 6.470mm are that 172 ° of lifts of 0.898mm are 0.055mm
13 ° of lifts are that 53 ° of lifts of 0.133mm are that 93 ° of lifts of 3.219mm are that 133 ° of lifts of 6.434mm are that 173 ° of lifts of 0.832mm are 0.049mm
14 ° of lifts are that 54 ° of lifts of 0.154mm are that 94 ° of lifts of 3.374mm are that 134 ° of lifts of 6.390mm are that 174 ° of lifts of 0.771mm are 0.044mm
15 ° of lifts are that 55 ° of lifts of 0.177mm are that 95 ° of lifts of 3.529mm are that 135 ° of lifts of 6.335mm are that 175 ° of lifts of 0.714mm are 0.038mm
16 ° of lifts are that 56 ° of lifts of 0.201mm are that 96 ° of lifts of 3.681mm are that 136 ° of lifts of 6.264mm are that 176 ° of lifts of 0.661mm are 0.033mm
17 ° of lifts are that 57 ° of lifts of 0.227mm are that 97 ° of lifts of 3.832mm are that 137 ° of lifts of 6.176mm are that 177 ° of lifts of 0.611mm are 0.028mm
18 ° of lifts are that 58 ° of lifts of 0.255mm are that 98 ° of lifts of 3.981mm are that 138 ° of lifts of 6.070mm are that 178 ° of lifts of 0.566mm are 0.024mm
19 ° of lifts are that 59 ° of lifts of 0.284mm are that 99 ° of lifts of 4.128mm are that 139 ° of lifts of 5.946mm are that 179 ° of lifts of 0.524mm are 0.020mm
20 ° of lifts are that 60 ° of lifts of 0.314mm are that 100 ° of lifts of 4.272mm are that 140 ° of lifts of 5.804mm are that 180 ° of lifts of 0.487mm are 0.016mm
21 ° of lifts are that 61 ° of lifts of 0.347mm are that 101 ° of lifts of 4.413mm are that 141 ° of lifts of 5.642mm are that 181 ° of lifts of 0.453mm are 0.013mm
22 ° of lifts are that 62 ° of lifts of 0.380mm are that 102 ° of lifts of 4.551mm are that 142 ° of lifts of 5.459mm are that 182 ° of lifts of 0.422mm are 0.009mm
23 ° of lifts are that 63 ° of lifts of 0.416mm are that 103 ° of lifts of 4.686mm are that 143 ° of lifts of 5.254mm are that 183 ° of lifts of 0.396mm are 0.001mm
24 ° of lifts are that 64 ° of lifts of 0.453mm are that 104 ° of lifts of 4.818mm are that 144 ° of lifts of 5.024mm are that 184 ° of lifts of 0.373mm are 0.000mm
25 ° of lifts are that 65 ° of lifts of 0.492mm are that 105 ° of lifts of 4.946mm are that 145 ° of lifts of 4.775mm are 0.353mm
26 ° of lifts are that 66 ° of lifts of 0.533mm are that 106 ° of lifts of 5.069mm are that 146 ° of lifts of 4.532mm are 0.337mm
27 ° of lifts are that 67 ° of lifts of 0.579mm are that 107 ° of lifts of 5.189mm are that 147 ° of lifts of 4.300mm are 0.321mm
28 ° of lifts are that 68 ° of lifts of 0.628mm are that 108 ° of lifts of 5.305mm are that 148 ° of lifts of 4.078mm are 0.305mm
29 ° of lifts are that 69 ° of lifts of 0.680mm are that 109 ° of lifts of 5.416mm are that 149 ° of lifts of 3.865mm are 0.290mm
30 ° of lifts are that 70 ° of lifts of 0.738mm are that 110 ° of lifts of 5.523mm are that 150 ° of lifts of 3.661mm are 0.275mm
(2) the intake cam lift is:
Below whenever increase progressively an angle, the lift of the corresponding rising of cam
0 ° of lift be 33 ° of lifts of 0.000mm be 66 ° of lifts of 2.295mm be 99 ° of lifts of 6.359mm for-132 ° of lifts of 2.976mm are 0.284mm
1 ° of lift is that 34 ° of lifts of 0.001mm are that 67 ° of lifts of 2.453mm are that 100 ° of lifts of 6.345mm are that 133 ° of lifts of 2.825mm are 0.261mm
2 ° of lifts are that 35 ° of lifts of 0.005mm are that 68 ° of lifts of 2.621mm are that 101 ° of lifts of 6.322mm are that 134 ° of lifts of 2.677mm are 0.239mm
3 ° of lifts are that 36 ° of lifts of 0.014mm are that 69 ° of lifts of 2.797mm are that 102 ° of lifts of 6.293mm are that 135 ° of lifts of 2.534mm are 0.219mm
4 ° of lifts are that 37 ° of lifts of 0.026mm are that 70 ° of lifts of 2.982mm are that 103 ° of lifts of 6.257mm are that 136 ° of lifts of 2.395mm are 0.199mm
5 ° of lifts are that 38 ° of lifts of 0.042mm are that 71 ° of lifts of 3.176mm are that 104 ° of lifts of 6.215mm are that 137 ° of lifts of 2.260mm are 0.181mm
6 ° of lifts are that 39 ° of lifts of 0.062mm are that 72 ° of lifts of 3.380mm are that 105 ° of lifts of 6.166mm are that 138 ° of lifts of 2.131mm are 0.165mm
7 ° of lifts are that 40 ° of lifts of 0.086mm are that 73 ° of lifts of 3.594mm are that 106 ° of lifts of 6.111mm are that 139 ° of lifts of 2.006mm are 0.149mm
8 ° of lifts are that 41 ° of lifts of 0.113mm are that 74 ° of lifts of 3.818mm are that 107 ° of lifts of 6.050mm are that 140 ° of lifts of 1.886mm are 0.135mm
9 ° of lifts are that 42 ° of lifts of 0.145mm are that 75 ° of lifts of 4.051mm are that 108 ° of lifts of 5.983mm are that 141 ° of lifts of 1.771mm are 0.123mm
10 ° of lifts are that 43 ° of lifts of 0.181mm are that 76 ° of lifts of 4.289mm are that 109 ° of lifts of 5.910mm are that 142 ° of lifts of 1.660mm are 0.111mm
11 ° of lifts are that 44 ° of lifts of 0.220mm are that 77 ° of lifts of 4.522mm are that 110 ° of lifts of 5.831mm are that 143 ° of lifts of 1.555mm are 0.099mm
12 ° of lifts are that 45 ° of lifts of 0.264mm are that 78 ° of lifts of 4.74mm are that 111 ° of lifts of 5.747mm are that 144 ° of lifts of 1.454mm are 0.088mm
13 ° of lifts are that 46 ° of lifts of 0.312mm are that 79 ° of lifts of 4.952mm are that 112 ° of lifts of 5.657mm are that 145 ° of lifts of 1.357mm are 0.078mm
14 ° of lifts are that 47 ° of lifts of 0.365mm are that 80 ° of lifts of 5.143mm are that 113 ° of lifts of 5.561mm are that 146 ° of lifts of 1.265mm are 0.069mm
15 ° of lifts are that 48 ° of lifts of 0.421mm are that 81 ° of lifts of 5.316mm are that 114 ° of lifts of 5.460mm are that 147 ° of lifts of 1.178mm are 0.060mm
16 ° of lifts are that 49 ° of lifts of 0.483mm are that 82 ° of lifts of 5.469mm are that 115 ° of lifts of 5.354mm are that 148 ° of lifts of 1.095mm are 0.051mm
17 ° of lifts are that 50 ° of lifts of 0.548mm are that 83 ° of lifts of 5.603mm are that 116 ° of lifts of 5.243mm are that 149 ° of lifts of 1.017mm are 0.044mm
18 ° of lifts are that 51 ° of lifts of 0.619mm are that 84 ° of lifts of 5.721mm are that 117 ° of lifts of 5.128mm are that 150 ° of lifts of 0.943mm are 0.037mm
19 ° of lifts are that 52 ° of lifts of 0.694mm are that 85 ° of lifts of 5.825mm are that 118 ° of lifts of 5.007mm are that 151 ° of lifts of 0.873mm are 0.030mm
20 ° of lifts are that 53 ° of lifts of 0.774mm are that 86 ° of lifts of 5.915mm are that 119 ° of lifts of 4.882mm are that 152 ° of lifts of 0.807mm are 0.024mm
21 ° of lifts are that 54 ° of lifts of 0.859mm are that 87 ° of lifts of 5.995mm are that 120 ° of lifts of 4.753mm are that 153 ° of lifts of 0.746mm are 0.019mm
22 ° of lifts are that 55 ° of lifts of 0.950mm are that 88 ° of lifts of 6.065mm are that 121 ° of lifts of 4.620mm are that 154 ° of lifts of 0.687mm are 0.015mm
23 ° of lifts are that 56 ° of lifts of 1.046mm are that 89 ° of lifts of 6.125mm are that 122 ° of lifts of 4.484mm are that 155 ° of lifts of 0.634mm are 0.011mm
24 ° of lifts are that 57 ° of lifts of 1.147mm are that 90 ° of lifts of 6.179mm are that 123 ° of lifts of 4.344mm are that 156 ° of lifts of 0.583mm are 0.007mm
25 ° of lifts are that 58 ° of lifts of 1.254mm are that 91 ° of lifts of 6.224mm are that 124 ° of lifts of 4.200mm are that 157 ° of lifts of 0.537mm are 0.005mm
26 ° of lifts are that 59 ° of lifts of 1.365mm are that 92 ° of lifts of 6.263mm are that 125 ° of lifts of 4.054mm are that 158 ° of lifts of 0.495mm are 0.002mm
27 ° of lifts are that 60 ° of lifts of 1.482mm are that 93 ° of lifts of 6.295mm are that 126 ° of lifts of 3.905mm are that 159 ° of lifts of 0.455mm are 0.001mm
28 ° of lifts are that 61 ° of lifts of 1.604mm are that 94 ° of lifts of 6.321mm are that 127 ° of lifts of 3.754mm are that 160 ° of lifts of 0.420mm are 0.000mm
29 ° of lifts are that 62 ° of lifts of 1.731mm are that 95 ° of lifts of 6.341mm are that 128 ° of lifts of 3.600mm are 0.388mm
30 ° of lifts are that 63 ° of lifts of 1.863mm are that 96 ° of lifts of 6.355mm are that 129 ° of lifts of 3.445mm are 0.359mm
31 ° of lifts are that 64 ° of lifts of 2.001mm are that 97 ° of lifts of 6.363mm are that 130 ° of lifts of 3.288mm are 0.334mm
32 ° of lifts be 65 ° of lifts of 2.144mm be 98 ° of lifts of 6.365mm be 131 ° of lifts of 3.131mm be angle between 0.308mm intake cam and the exhaust cam be 109 ° ± 30 ', the base circle diameter (BCD) of inlet and outlet cam is 25mm.
2. cam profile according to claim 1 is characterized in that: inlet and outlet cam maximum lift deviation is ± 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052956U CN201354654Y (en) | 2008-12-15 | 2008-12-15 | Cam molded line for motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202052956U CN201354654Y (en) | 2008-12-15 | 2008-12-15 | Cam molded line for motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354654Y true CN201354654Y (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202052956U Expired - Fee Related CN201354654Y (en) | 2008-12-15 | 2008-12-15 | Cam molded line for motorcycle engine |
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| CN (1) | CN201354654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949313A (en) * | 2010-09-30 | 2011-01-19 | 长城汽车股份有限公司 | Distribution cam for internal combustion engine |
| CN102425465A (en) * | 2011-12-19 | 2012-04-25 | 力帆实业(集团)股份有限公司 | Three-valve engine camshaft of small-displacement motorcycle |
-
2008
- 2008-12-15 CN CNU2008202052956U patent/CN201354654Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949313A (en) * | 2010-09-30 | 2011-01-19 | 长城汽车股份有限公司 | Distribution cam for internal combustion engine |
| CN102425465A (en) * | 2011-12-19 | 2012-04-25 | 力帆实业(集团)股份有限公司 | Three-valve engine camshaft of small-displacement motorcycle |
| CN102425465B (en) * | 2011-12-19 | 2013-06-12 | 力帆实业(集团)股份有限公司 | Three-valve engine camshaft of small-displacement motorcycle |
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Granted publication date: 20091202 Termination date: 20101215 |