CN205172668U - Motorcycle engine - Google Patents
Motorcycle engine Download PDFInfo
- Publication number
- CN205172668U CN205172668U CN201520859547.7U CN201520859547U CN205172668U CN 205172668 U CN205172668 U CN 205172668U CN 201520859547 U CN201520859547 U CN 201520859547U CN 205172668 U CN205172668 U CN 205172668U
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- Prior art keywords
- valve
- exhaust
- land
- lift phase
- clearance
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- Expired - Fee Related
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Abstract
The utility model discloses a motorcycle engine, exhaust cam have the high lift phase angle of exhausting, have the high lift phase place contained angle that advances, exhausts between inlet cam and the exhaust cam, the minimum clearance who advances between the valve adjuster on (air) intake valve and the rocking arm is called into valve clearance, and its parameter is 0.06 -0.1mm, and the minimum clearance between the row valve adjuster on exhaust valve and another rocking arm is called row valve clearance, and its parameter is 0.03 -0.07mm, and the width of connection pad is 18.5 -20.5mm, and its diameter is 116 -120mm, the numerical value at high lift phase angle of exhausting is 122 - beta, and the numerical value of the high lift phase place contained angle that advances, exhausts is 98 + beta. The utility model discloses effectively increased the inertia of rotor, high lift phase angle has suitably reduced to exhaust to the high lift phase place contained angle that has increased simultaneously, has exhausted has still suitably increased, valve clearance exhausts at last, show through experimental that impact sound when the electricity after above -mentioned the modification spouts state engine idling operating mode has effectively reduced.
Description
Technical field
The utility model belongs to motorcycle part, particularly relates to a kind of motorcycle engine.
Background technique
At present, after motorcycle engine changes EFI state into from Carburetor state, during idling operation there is galloping and the larger problem of strike note in EFI state engine, is badly in need of solving the problems of the technologies described above for this reason.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of motorcycle engine, for reducing strike note during EFI state engine idling operation.
The technical solution of the utility model is as follows: a kind of motorcycle engine, comprise magneto rotor (1), intake cam (2), exhaust cam (3), intake valve (4) and exhaust valve (5), wherein magneto rotor (1) comprises land (1a) and rivet (1e), wherein an end face of land (1a) is coaxially connected with a rotor case (1b), coaxially be provided with collection magnetic cup (1c) in this rotor case, and be provided with magnet steel (1d) between rotor case (1b) and collection magnetic cup (1c); The number of described rivet (1e) is 3-8, and these rivets are uniform along the circumference of land (1a), and land (1a) and rotor case (1b) riveted joint are fixed by this rivet (1e); Described exhaust cam (3) has exhaust maximum lift phase angle (α), and has inlet and outlet maximum lift phase place angle (γ) between intake cam (2) and exhaust cam (3); The intake valve minimum clearance adjusted between screw (7) on described intake valve (4) and a rocking arm (6) is called intake valve gap (L1), the exhaust valve minimum clearance adjusted between screw (8) on described exhaust valve (5) and another rocking arm (3) is called emission valve clearance (L2), it is characterized in that: the width (D) of described land (1) is 18.5-20.5mm, the diameter (R) of this land is 116-120mm;
The numerical value of described exhaust maximum lift phase angle (α) is 122 ° of-β, and the numerical value of described inlet and outlet maximum lift phase place angle (γ) is 98 ° of+β, and the numerical value of β is 2 °-8 °; Described intake valve gap (L1) is 0.03-0.07mm, and described emission valve clearance (L2) is 0.06-0.1mm.
In technique scheme, the width of land is adjusted to present 18.5-20.5mm by 19 original ± 0.3mm, and the diameter of land is adjusted to present 116-120mm by original 110mm.After above-mentioned adjustment, increase effectively the rotary inertia of magneto rotor, and strike note when proving engine idling condition by experiment reduces.Further, above-mentioned change is less, need not change the structures such as casing.The numerical value of described exhaust maximum lift phase angle (α) is reduced to 122 ° of present-β by original 122 °, the numerical value of described inlet and outlet maximum lift phase place angle (γ) increases to 98 ° of present+β by original 98 °, and the numerical value of β is 2 °-8 °.Intake valve gap (L1) is increased to 0.03-0.07mm by original 0.01-0.05mm by the utility model, and described emission valve clearance (L2) is increased to 0.06-0.1mm by original 0.03-0.07mm.
Show through experiment many times, after the amendment of above-mentioned three aspects, strike note during EFI state engine idling operation effectively reduces, be specially maximum noise and be reduced to present 72.2 decibels by original 75.3 decibels, minimum noise is reduced to present 68.8 decibels by original 73.0, average noise is reduced to present 71 decibels by original 74 decibels, which also improves stationarity during operation.It should be noted that, the noise reducing motorcycle engine is extremely difficult, because the link producing motorcycle engine noise has a lot, and connect each other in addition between links, often all need to pay a large amount of work, experiment and economic cost so often reduce by one decibel.
As optimal selection, the width of described land (1a) is 19.5mm, and the diameter of this land is 118mm.
As optimal selection, the numerical value of described β is 5 °.
As optimal selection, described intake valve gap (L1) is 0.05mm, and described emission valve clearance (L2) is 0.08mm.
Beneficial effect: the utility model increase effectively the rotary inertia of rotor, suitably reduces exhaust maximum lift phase angle, and increases inlet and outlet maximum lift phase place angle simultaneously, finally also suitably increase inlet and outlet valve clearance; Show through test, strike note through above-mentioned amended EFI state engine idling operation effectively reduces, be specially maximum noise and be reduced to present 72.2 decibels by original 75.3 decibels, minimum noise is reduced to present 68.8 decibels by original 73.0, average noise is reduced to present 71 decibels by original 74 decibels, which also improves stationarity during operation, thus solve large problem well by little change.
Accompanying drawing explanation
Fig. 1 is the structural representation of magneto rotor in the utility model.
Fig. 2 is that the A-A of Fig. 1 is to turnover sectional view.
Fig. 3 is the schematic diagram of inlet and outlet cam in the utility model.
Fig. 4 is the schematic diagram of inlet and outlet valve in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1,2,3, 4, a kind of motorcycle engine, comprise magneto rotor 1, intake cam 2, exhaust cam 3, intake valve 4 and exhaust valve 5, wherein magneto rotor 1 comprises land 1a and rivet 1e, wherein an end face of land 1a is coaxially connected with a rotor case 1b, coaxially be provided with collection magnetic cup 1c in this rotor case, and be provided with magnet steel 1d between rotor case 1b and collection magnetic cup 1c; The number of rivet 1e is 3-8, and these rivets are uniform along the circumference of land 1a, and land 1a and rotor case 1b rivets fixing by this rivet 1e; Exhaust cam 3 has an exhaust maximum lift phase angle [alpha], and has an inlet and outlet maximum lift phase place angle γ between intake cam 2 and exhaust cam 3; The intake valve minimum clearance adjusted between screw 7 on intake valve 4 and a rocking arm 6 is called intake valve gap L 1, and the exhaust valve minimum clearance adjusted between screw 8 on exhaust valve 5 and another rocking arm 3 is called emission valve clearance L2.The width D of land 1 is 18.5-20.5mm, and the diameter R of this land is 116-120mm; The width of land 1a is 19.5mm, and the diameter of this land is 118mm.
The numerical value of exhaust maximum lift phase angle [alpha] is 122 ° of-β, and the numerical value of inlet and outlet maximum lift phase place angle γ is 98 ° of+β, and the numerical value of β is 2 °-8 °.The numerical value of β is 5 °.Intake valve gap L 1 is 0.03-0.07mm, and emission valve clearance L2 is 0.06-0.1mm.Intake valve gap L 1 is 0.05mm, and emission valve clearance L2 is 0.08mm.All the other structures of the present utility model are the same with existing motorcycle engine, do not repeat at this.
The foregoing is only preferred embodiment of the present utility model; it is not restriction with the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a motorcycle engine, comprise magneto rotor (1), intake cam (2), exhaust cam (3), intake valve (4) and exhaust valve (5), wherein magneto rotor (1) comprises land (1a) and rivet (1e), wherein an end face of land (1a) is coaxially connected with a rotor case (1b), coaxially be provided with collection magnetic cup (1c) in this rotor case, and be provided with magnet steel (1d) between rotor case (1b) and collection magnetic cup (1c); The number of described rivet (1e) is 3-8, and these rivets are uniform along the circumference of land (1a), and land (1a) and rotor case (1b) riveted joint are fixed by this rivet (1e); Described exhaust cam (3) has exhaust maximum lift phase angle (α), and has inlet and outlet maximum lift phase place angle (γ) between intake cam (2) and exhaust cam (3); The intake valve minimum clearance adjusted between screw (7) on described intake valve (4) and a rocking arm (6) is called intake valve gap (L1), the exhaust valve minimum clearance adjusted between screw (8) on described exhaust valve (5) and another rocking arm (3) is called emission valve clearance (L2), it is characterized in that: the width (D) of described land (1) is 18.5-20.5mm, the diameter (R) of this land is 116-120mm;
The numerical value of described exhaust maximum lift phase angle (α) is 122 ° of-β, and the numerical value of described inlet and outlet maximum lift phase place angle (γ) is 98 ° of+β, and the numerical value of β is 2 °-8 °; Described intake valve gap (L1) is 0.03-0.07mm, and described emission valve clearance (L2) is 0.06-0.1mm.
2. motorcycle engine according to claim 1, is characterized in that: the width of described land (1a) is 19.5mm, and the diameter of this land is 118mm.
3. motorcycle engine according to claim 1, is characterized in that: the numerical value of described β is 5 °.
4. motorcycle engine according to claim 1, is characterized in that: described intake valve gap (L1) is 0.05mm, and described emission valve clearance (L2) is 0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859547.7U CN205172668U (en) | 2015-10-31 | 2015-10-31 | Motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859547.7U CN205172668U (en) | 2015-10-31 | 2015-10-31 | Motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172668U true CN205172668U (en) | 2016-04-20 |
Family
ID=55736671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859547.7U Expired - Fee Related CN205172668U (en) | 2015-10-31 | 2015-10-31 | Motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240082A (en) * | 2015-10-31 | 2016-01-13 | 中国嘉陵工业股份有限公司（集团） | Motorcycle engine |
-
2015
- 2015-10-31 CN CN201520859547.7U patent/CN205172668U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240082A (en) * | 2015-10-31 | 2016-01-13 | 中国嘉陵工业股份有限公司（集团） | Motorcycle engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181207 Address after: 402760 No. 111 Yongjia Avenue, Biquan Street, Chongqing Patentee after: Chongqing Jialing Industrial Co.,Ltd. Address before: No. 111 Yongjia Avenue, Bishan County, Chongqing City, Chongqing Patentee before: China Jialing Industry Co.,Ltd. (Group) |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20211031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |