CN215890123U - Gas distribution camshaft of motorcycle gasoline engine - Google Patents

Gas distribution camshaft of motorcycle gasoline engine Download PDF

Info

Publication number
CN215890123U
CN215890123U CN202121754167.9U CN202121754167U CN215890123U CN 215890123 U CN215890123 U CN 215890123U CN 202121754167 U CN202121754167 U CN 202121754167U CN 215890123 U CN215890123 U CN 215890123U
Authority
CN
China
Prior art keywords
cam
angle
lift
degrees
section
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.)
Active
Application number
CN202121754167.9U
Other languages
Chinese (zh)
Inventor
谢剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Dechengwei Technology Co ltd
Original Assignee
Chongqing Dechengwei Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Dechengwei Technology Co ltd filed Critical Chongqing Dechengwei Technology Co ltd
Priority to CN202121754167.9U priority Critical patent/CN215890123U/en
Application granted granted Critical
Publication of CN215890123U publication Critical patent/CN215890123U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The utility model discloses a gas distribution camshaft of a motorcycle gasoline engine, which comprises a shaft body, wherein an air inlet cam and an air outlet cam are arranged on the shaft body, a timing groove is arranged on the end surface of the shaft body, an included angle between a connecting line of a maximum lift point of the air inlet cam and an axis and a connecting line of the maximum lift point of the air outlet cam and the axis is 126 degrees, and an included angle between a connecting line of the maximum lift point of the air inlet cam and the axis and a perpendicular bisector of the timing groove is 118.5 degrees. The utility model can be matched with the geometric structure size, the cylinder diameter stroke and the ignition characteristic of the air intake and exhaust system of the 1P51FMH type engine, can ensure the air distribution phase and the better valve motion rule, improves the air intake and exhaust conditions by redesigning the air distribution phase angle, can improve the performance of the engine, prolong the service life of the engine, ensure the working reliability of the engine and reduce the oil consumption of the engine.

Description

Gas distribution camshaft of motorcycle gasoline engine
Technical Field
The utility model relates to a motorcycle engine, in particular to a gas distribution camshaft of a motorcycle gasoline engine.
Background
With the enhancement of the environmental awareness of consumers and the increase of energy price, manufacturers strive to improve the performance of engines to achieve the requirements of improving the output power of the engines and reducing the oil consumption, and the molded lines of the intake camshaft and the exhaust camshaft used by the gas distribution camshaft of the motorcycle gasoline engine have important influences on the performance of the engines, the service life of the engines, the working reliability of the engines and the oil consumption of the engines, so that the improvement of the structure of the gas distribution camshaft of the existing motorcycle gasoline engine to improve the performance of the engines is always an important subject in the technical field of the motorcycle engines.
CN106401680B discloses a high performance camshaft for motorcycle engine, in which an intake cam and an exhaust cam are arranged on a shaft body; a timing hole is formed in the end face of the camshaft; the included angle between the connecting line of the maximum lift point of the air inlet cam and the axis and the connecting line of the maximum lift point of the exhaust cam and the axis is 137 degrees; the included angle between the connecting line of the maximum lift point of the exhaust cam and the shaft center and the connecting line of the timing hole and the shaft center is 64 degrees. The engine has the advantages that due to the reasonable lift data design of the air inlet and exhaust cam, the air inlet and the exhaust of the engine are more sufficient, the air inlet amount is maximized, more fuel oil mixed gas is combusted in the working stroke, the explosion pressure in the cylinder is increased, the indicating power of the engine is improved, and the effective power is correspondingly improved. Under the condition that other parameters of the engine are not changed, only the camshaft is replaced, and the power is improved by about 2 KW. This is, of course, a useful attempt in the art. However, the utility model is not applicable to 1P51FMH type engines (wherein 1 means a single cylinder, i.e. one cylinder, P means a flat engine, i.e. a horizontal engine, 51 means a cylinder diameter of 51 mm, F means an air-cooled engine, M means an engine for motorcycles, and H means a displacement of 110 CC).
Disclosure of Invention
In view of this, the present invention aims to overcome the defects in the prior art, and provides a motorcycle gasoline engine distribution camshaft which can be applied to a 1P51FMH type engine, and can improve the performance of the engine, prolong the service life of the engine, ensure the working reliability of the engine, and reduce the oil consumption of the engine.
The utility model discloses a gas distribution camshaft of a motorcycle gasoline engine, which comprises a shaft body, wherein an air inlet cam and an air outlet cam are arranged on the shaft body, a timing groove is arranged on the end surface of the shaft body, an included angle between a connecting line of a maximum lift point of the air inlet cam and an axis and a connecting line of the maximum lift point of the air outlet cam and the axis is 126 degrees, and an included angle between a connecting line of the maximum lift point of the air inlet cam and the axis and a perpendicular bisector of the timing groove is 118.5 degrees.
Further, the maximum lift h1 of the intake cam is 4.29 mm; the cam line type of the air inlet cam comprises an air inlet valve base circle section, an air inlet valve opening buffer section, an air inlet valve opening section, an air inlet valve closing section and an air inlet valve closing buffer section; the cam corner interval corresponding to the air inlet valve opening buffer section is 0-53 degrees, and the corresponding lift range is 0.000-0.673 mm; the cam corner interval corresponding to the opening section of the air inlet valve is 53-105 degrees, and the corresponding lift range is 4.29-0.673 mm; the cam corner interval corresponding to the closing section of the air inlet valve is 105-157 degrees, and the corresponding lift range is 4.29-0.649 mm; the cam corner interval corresponding to the closing buffer section of the air inlet valve is 157 degrees to 228 degrees, and the corresponding lift range is 0.649mm to 0.000 mm.
Further, the maximum lift h2 of the exhaust cam is 4.096 mm; the cam line type of the exhaust cam comprises an exhaust valve base circle section, an exhaust valve opening buffer section, an exhaust valve opening section, an exhaust valve closing section and an exhaust valve closing buffer section; the cam corner interval corresponding to the exhaust valve opening buffer section is 0-53 degrees, and the corresponding lift range is 0.000-0.650 mm; the cam corner interval corresponding to the exhaust valve opening section is 53-105 degrees, and the corresponding lift range is 0.650-4.096 mm; the cam corner interval corresponding to the exhaust valve closing section is 105-156 degrees, and the corresponding lift range is 4.096-0.650 mm; the cam corner interval corresponding to the exhaust valve closing buffer section is 156-211 degrees, and the corresponding lift range is 0.650-0.000 mm.
Further, the angle and lift correspondence relationship of the intake cam and the exhaust cam is shown in tables 1 and 2;
table 1: corresponding relation table of intake cam angle and lift (the unit of lift is mm)
Figure BDA0003187645650000021
Figure BDA0003187645650000031
Table 2: exhaust cam angle and lift corresponding relation table (the unit of lift is mm)
Figure BDA0003187645650000032
Figure BDA0003187645650000041
The utility model has the beneficial effects that: the utility model can be matched with the geometric structure size, the cylinder diameter stroke and the ignition characteristic of the air intake and exhaust system of the 1P51FMH type engine, can ensure the air distribution phase and the better valve motion rule, improves the air intake and exhaust conditions by redesigning the air distribution phase angle, can improve the performance of the engine, prolong the service life of the engine, ensure the working reliability of the engine and reduce the oil consumption of the engine.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic angle diagram of the intake and exhaust cams of the present invention;
FIG. 3 is a profile view of the intake cam of the present invention;
fig. 4 is a line drawing of the exhaust cam of the present invention.
Description of reference numerals: 1-shaft body, 2-exhaust cam, 3-intake cam, 4-normal time slot, H1-maximum lift of intake cam, H2-maximum lift of exhaust cam, A-intake valve opening buffer section, B-intake valve opening section, C-intake valve closing section, D-intake valve closing buffer section, E-exhaust valve opening buffer section, F-exhaust valve opening section, G-exhaust valve closing section and H-exhaust valve closing buffer section.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the gas distribution camshaft of the motorcycle gasoline engine in the embodiment includes a shaft body 1, an intake cam 3 and an exhaust cam 2 are arranged on the shaft body 1, a timing groove 4 is arranged on the end surface of the shaft body 1, an included angle between a connecting line of a maximum lift point of the intake cam 3 and a shaft center and a connecting line of a maximum lift point of the exhaust cam 2 and the shaft center is 126 °, and an included angle between a connecting line of the maximum lift point of the intake cam 3 and the shaft center and a perpendicular bisector of the timing groove 4 is 118.5 °; the motorcycle gasoline engine distribution camshaft in the embodiment can be matched with the geometric structure size, the cylinder diameter stroke and the ignition characteristic of an air inlet and exhaust system of a 1P51FMH type engine, the timing groove 4 can be matched with a chain wheel of the 1P51FMH type engine, the distribution phase and the good valve motion rule can be guaranteed, the air inlet and exhaust conditions are improved through redesigning the distribution phase angle, the engine performance can be improved, the service life of the engine is prolonged, the working reliability of the engine is guaranteed, and the oil consumption of the engine is reduced. In the present embodiment, the base circle diameters of the intake cam 3 and the exhaust cam 2 are both 28 mm.
In the present embodiment, as shown in fig. 3, the maximum lift h1 of the intake cam is 4.29 mm; the cam line type of the air inlet cam 3 comprises an air inlet valve base circle section, an air inlet valve opening buffer section A, an air inlet valve opening section B, an air inlet valve closing section C and an air inlet valve closing buffer section D; the cam corner interval corresponding to the air inlet valve opening buffer section A is 0-53 degrees, and the corresponding lift range is 0.000-0.673 mm; the cam corner interval corresponding to the air inlet valve opening section B is 53-105 degrees, and the corresponding lift range is 4.29-0.673 mm; the cam corner interval corresponding to the closing section C of the air inlet valve is 105-157 degrees, and the corresponding lift range is 4.29-0.649 mm; the cam angle interval corresponding to the air inlet valve closing buffer section D is 157 degrees to 228 degrees, and the corresponding lift range is 0.649mm to 0.000 mm.
In the present embodiment, as shown in fig. 4, the maximum lift h2 of the exhaust cam is 4.096 mm; the cam line type of the exhaust cam 2 comprises an exhaust valve base circle section, an exhaust valve opening buffer section E, an exhaust valve opening section F, an exhaust valve closing section G and an exhaust valve closing buffer section H; the cam corner interval corresponding to the exhaust valve opening buffer section E is 0-53 degrees, and the corresponding lift range is 0.000-0.650 mm; the cam corner interval corresponding to the exhaust valve opening section F is 53-105 degrees, and the corresponding lift range is 0.650-4.096 mm; the cam corner interval corresponding to the exhaust valve closing section G is 105-156 degrees, and the corresponding lift range is 4.096-0.650 mm; the cam corner interval corresponding to the exhaust valve closing buffer section H is 156-211 degrees, and the corresponding lift is 0.650-0.000 mm.
In the present embodiment, the angle-to-lift correspondence relationship between the intake cam 3 and the exhaust cam 2 is shown in tables 1 and 2;
table 1: corresponding relation table of angle and lift of air inlet cam 3 (the unit of the lift is mm)
Figure BDA0003187645650000061
Figure BDA0003187645650000071
Table 2: exhaust cam 2 Angle and lift corresponding relation table (the lift unit is mm)
Figure BDA0003187645650000072
Figure BDA0003187645650000081
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (4)

1. The utility model provides a motorcycle gasoline engine distribution camshaft, includes axis body (1), is equipped with air intake cam (3) and exhaust cam (2) on axis body (1), its characterized in that: the end face of the shaft body (1) is provided with a timing groove (4), an included angle between a connecting line of a maximum lift point and an axis of the air inlet cam (3) and a connecting line of a maximum lift point and an axis of the exhaust cam (2) is 126 degrees, and an included angle between a connecting line of the maximum lift point and the axis of the air inlet cam (3) and a perpendicular bisector of the timing groove (4) is 118.5 degrees.
2. A motorcycle gasoline engine distribution camshaft of claim 1, characterized in that: the maximum lift (h1) of the intake cam is 4.29 mm; the cam line type of the intake cam (3) comprises an intake valve base circle section, an intake valve opening buffer section (A), an intake valve opening section (B), an intake valve closing section (C) and an intake valve closing buffer section (D); the cam corner interval corresponding to the air inlet valve opening buffer section (A) is 0-53 degrees, and the corresponding lift range is 0.000-0.673 mm; the cam angle interval corresponding to the intake valve opening section (B) is 53-105 degrees, and the corresponding lift range is 4.29-0.673 mm; the cam corner interval corresponding to the air inlet valve closing section (C) is 105-157 degrees, and the corresponding lift range is 4.29-0.649 mm; the cam angle interval corresponding to the closing buffer section (D) of the intake valve is 157-228 degrees, and the corresponding lift is 0.649-0.000 mm.
3. A motorcycle gasoline engine distribution camshaft of claim 2, characterized in that: the maximum lift (h2) of the exhaust cam is 4.096 mm; the cam line type of the exhaust cam (2) comprises an exhaust valve base circle section, an exhaust valve opening buffer section (E), an exhaust valve opening section (F), an exhaust valve closing section (G) and an exhaust valve closing buffer section (H); the cam corner interval corresponding to the exhaust valve opening buffer section (E) is 0-53 degrees, and the corresponding lift range is 0.000-0.650 mm; the cam corner interval corresponding to the exhaust valve opening section (F) is 53-105 degrees, and the corresponding lift range is 0.650-4.096 mm; the cam corner interval corresponding to the exhaust valve closing section (G) is 105-156 degrees, and the corresponding lift range is 4.096-0.650 mm; the cam angle interval corresponding to the exhaust valve closing buffer section (H) is 156-211 degrees, and the corresponding lift range is 0.650-0.000 mm.
4. A motorcycle gasoline engine distribution camshaft of claim 3, characterized in that: the corresponding relation between the angle and the lift of the intake cam (3) and the exhaust cam (2) is shown in tables 1 and 2;
table 1: corresponding relation table of intake cam angle and lift (the unit of lift is mm)
Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range 0 0 36 0.171 72 2.509 108 4.278 144 1.729 180 0.178 216 0.043 1 0.001 37 0.176 73 2.61 109 4.267 145 1.624 181 0.175 217 0.039 2 0.003 38 0.182 74 2.707 110 4.25 146 1.522 182 0.172 218 0.035 3 0.006 39 0.189 75 2.803 111 4.229 147 1.422 183 0.169 219 0.031 4 0.009 40 0.199 76 2.896 112 4.201 148 1.327 184 0.165 220 0.027 5 0.014 41 0.212 77 2.987 113 4.171 149 1.235 185 0.161 221 0.023 6 0.018 42 0.228 78 3.077 114 4.137 150 1.147 186 0.157 222 0.019 7 0.023 43 0.248 79 3.164 115 4.099 151 1.063 187 0.153 223 0.015 8 0.028 44 0.272 80 3.249 116 4.059 152 0.983 188 0.149 224 0.01 9 0.033 45 0.3 81 3.33 117 4.014 153 0.907 189 0.146 225 0.007 10 0.037 46 0.332 82 3.407 118 3.965 154 0.836 190 0.142 226 0.004 11 0.042 47 0.368 83 3.482 119 3.913 155 0.769 191 0.138 227 0.001 12 0.047 48 0.408 84 3.555 120 3.858 156 0.707 192 0.134 228 0 13 0.053 49 0.452 85 3.623 121 3.8 157 0.649 193 0.13 14 0.059 50 0.501 86 3.687 122 3.739 158 0.595 194 0.126 15 0.064 51 0.554 87 3.749 123 3.674 159 0.545 195 0.122 16 0.069 52 0.612 88 3.81 124 3.606 160 0.5 196 0.118 17 0.075 53 0.673 89 3.866 125 3.536 161 0.458 197 0.114 18 0.08 54 0.74 90 3.92 126 3.461 162 0.419 198 0.11 19 0.086 55 0.811 91 3.97 127 3.384 163 0.385 199 0.107 20 0.091 56 0.887 92 4.017 128 3.303 164 0.354 200 0.103 21 0.096 57 0.967 93 4.061 129 3.22 165 0.327 201 0.099 22 0.101 58 1.053 94 4.1 130 3.135 166 0.304 202 0.095 23 0.107 59 1.144 95 4.135 131 3.047 167 0.283 203 0.091 24 0.112 60 1.239 96 4.166 132 2.955 168 0.266 204 0.088 25 0.117 61 1.338 97 4.194 133 2.862 169 0.25 205 0.085 26 0.121 62 1.442 98 4.218 134 2.765 170 0.237 206 0.082 27 0.126 63 1.549 99 4.238 135 2.668 171 0.226 207 0.079 28 0.13 64 1.658 100 4.256 136 2.57 172 0.217 208 0.076 29 0.135 65 1.768 101 4.269 137 2.467 173 0.209 209 0.072 30 0.14 66 1.877 102 4.278 138 2.365 174 0.202 210 0.068 31 0.145 67 1.986 103 4.285 139 2.26 175 0.197 211 0.064 32 0.15 68 2.094 104 4.288 140 2.156 176 0.193 212 0.06 33 0.155 69 2.2 105 4.29 141 2.049 177 0.189 213 0.056 34 0.16 70 2.304 106 4.289 142 1.942 178 0.186 214 0.052 35 0.166 71 2.407 107 4.285 143 1.834 179 0.182 215 0.048
Table 2: exhaust cam angle and lift corresponding relation table (the unit of lift is mm)
Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range Angle of rotation Lift range 0 0 36 0.144 72 2.396 108 4.083 144 1.802 180 0.134 1 0.002 37 0.149 73 2.488 109 4.074 145 1.701 181 0.129 2 0.005 38 0.153 74 2.578 110 4.059 146 1.599 182 0.124 3 0.008 39 0.158 75 2.667 111 4.039 147 1.497 183 0.119 4 0.012 40 0.166 76 2.756 112 4.015 148 1.394 184 0.115 5 0.015 41 0.177 77 2.842 113 3.988 149 1.291 185 0.111 6 0.019 42 0.192 78 2.925 114 3.959 150 1.192 186 0.106 7 0.023 43 0.211 79 3.005 115 3.925 151 1.095 187 0.101 8 0.028 44 0.235 80 3.084 116 3.888 152 1.004 188 0.097 9 0.033 45 0.263 81 3.161 117 3.848 153 0.916 189 0.093 10 0.037 46 0.295 82 3.236 118 3.806 154 0.834 190 0.089 11 0.041 47 0.332 83 3.307 119 3.759 155 0.758 191 0.084 12 0.046 48 0.374 84 3.376 120 3.711 156 0.687 192 0.08 13 0.05 49 0.42 85 3.443 121 3.658 157 0.62 193 0.075 14 0.054 50 0.47 86 3.507 122 3.605 158 0.559 194 0.07 15 0.058 51 0.525 87 3.567 123 3.547 159 0.503 195 0.065 16 0.061 52 0.585 88 3.626 124 3.486 160 0.452 196 0.061 17 0.065 53 0.65 89 3.682 125 3.422 161 0.406 197 0.056 18 0.069 54 0.719 90 3.734 126 3.356 162 0.364 198 0.051 19 0.074 55 0.793 91 3.782 127 3.287 163 0.327 199 0.047 20 0.078 56 0.872 92 3.826 128 3.216 164 0.294 200 0.042 21 0.082 57 0.955 93 3.869 129 3.144 165 0.265 201 0.038 22 0.086 58 1.042 94 3.908 130 3.068 166 0.241 202 0.034 23 0.09 59 1.133 95 3.943 131 2.989 167 0.222 203 0.029 24 0.094 60 1.228 96 3.974 132 2.908 168 0.206 204 0.024 25 0.098 61 1.325 97 4.002 133 2.824 169 0.193 205 0.021 26 0.102 62 1.425 98 4.027 134 2.74 170 0.183 206 0.017 27 0.107 63 1.525 99 4.047 135 2.654 171 0.177 207 0.012 28 0.111 64 1.624 100 4.062 136 2.567 172 0.171 208 0.007 29 0.115 65 1.723 101 4.075 137 2.477 173 0.166 209 0.003 30 0.119 66 1.82 102 4.084 138 2.385 174 0.162 210 0.001 31 0.124 67 1.918 103 4.09 139 2.292 175 0.157 211 0 32 0.128 68 2.016 104 4.094 140 2.197 176 0.152 33 0.132 69 2.112 105 4.096 141 2.101 177 0.147 34 0.136 70 2.208 106 4.095 142 2.003 178 0.143 35 0.14 71 2.303 107 4.091 143 1.903 179 0.139
。
CN202121754167.9U 2021-07-29 2021-07-29 Gas distribution camshaft of motorcycle gasoline engine Active CN215890123U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121754167.9U CN215890123U (en) 2021-07-29 2021-07-29 Gas distribution camshaft of motorcycle gasoline engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121754167.9U CN215890123U (en) 2021-07-29 2021-07-29 Gas distribution camshaft of motorcycle gasoline engine

Publications (1)

Publication Number Publication Date
CN215890123U true CN215890123U (en) 2022-02-22

Family

ID=80562718

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121754167.9U Active CN215890123U (en) 2021-07-29 2021-07-29 Gas distribution camshaft of motorcycle gasoline engine

Country Status (1)

Country Link
CN (1) CN215890123U (en)

Similar Documents

Publication Publication Date Title
CN113685264A (en) Heavy natural gas engine combustion system
CN211777712U (en) Double-work gasoline engine
CN2856429Y (en) General multiple air gates admission gear of small I.C.engine
CN215890123U (en) Gas distribution camshaft of motorcycle gasoline engine
JP4951145B1 (en) Two-shaft output type reverse V-type engine
CN201461111U (en) Cylinder deactivating and oil saving device for engine
CN203978537U (en) A kind of Hybrid Vehicle twin cylinder engine distribution device
US8991355B2 (en) Cylinder head of small-sized general-purpose gasoline engine and gasoline engine having the same
US11713710B2 (en) Topological rotary engine
CN204152573U (en) A kind of novel twin cylinder engine distribution device
WO2013078747A1 (en) Small general gasoline engine cylinder head and gasoline engine thereof
CN202280491U (en) Motorcycle four-stroke engine top-mounted air distribution mechanism and camshaft assembly thereof
CN216240847U (en) Motorcycle engine
CN201297187Y (en) A high-power diesel engine camshaft structure with adjustable phase angle
CN108180047B (en) Cam group of supercharged direct injection engine
CN219139151U (en) Camshaft structure of variable valve
CN219431904U (en) Micron-sized air inlet cam with circulation
CN208996831U (en) A kind of new engine cylinder
CN111677572B (en) Air inlet camshaft, exhaust camshaft and engine
CN2786285Y (en) Rotary distribution device of internal combustion engine
CN208982133U (en) A kind of exhaust cam shaft of Atkinson cycle
CN221144540U (en) Automobile rocker arm assembly
CN209990553U (en) Four-valve cylinder structure of diesel engine
CN214366388U (en) Multi-cylinder engine
CN209838493U (en) Valve mechanism of internal combustion engine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant