CN202280530U - Motorcycle engine air cylinder head - Google Patents
Motorcycle engine air cylinder head Download PDFInfo
- Publication number
- CN202280530U CN202280530U CN2011203746063U CN201120374606U CN202280530U CN 202280530 U CN202280530 U CN 202280530U CN 2011203746063 U CN2011203746063 U CN 2011203746063U CN 201120374606 U CN201120374606 U CN 201120374606U CN 202280530 U CN202280530 U CN 202280530U
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- Prior art keywords
- cylinder head
- valve seat
- exhaust valve
- air
- motorcycle engine
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a motorcycle engine, and particularly discloses a motorcycle engine air cylinder head which comprises an air inlet valve guide pipe, an exhaust valve guide pipe, an air inlet valve seat ring, an air exhaust valve seat ring, an air inlet, an air exhaust port, an air inlet passage and an air exhaust passage, wherein the inner walls of the air inlet passage and the air exhaust passage are respectively connected by a gradient cross section vertical to the central axis in a smooth mode, thus a gradient vortex pipeline-type air duct is formed. According to the utility model, through the optimization of the air duct, the pressure loss is reduced, and the gas circulation capability is improved, thus mixed gas is absorbed in a vortex-shape and is fused fully, lean combustion can be realized, and the fuel efficiency is improved; and in addition, according to the utility model, the angles of the air inlet valve guide pipe, the air exhaust valve guide pipe, the air inlet valve seat ring and the air exhaust valve seat ring are regulated, and through matching with a cam molded line and the efficient butterfly-type combustion chamber which are designed according to measurement, the volumetric efficiency of the engine can be improved, thus the dynamic performance and economic performance of the engine are improved.
Description
Technical field
The utility model relates to a kind of motorcycle engine, the motorcycle engine cylinder head that is specifically related to give prominence to the shape of air flue or is configured to characteristics.
Background technique
Intake valve, exhaust valve guide, inlet valve seat ring, exhaust valve seat insert, suction port, relief opening, intake duct and air outlet flue are arranged on the motorcycle engine cylinder head; Wherein air flue is the key that forms different air motions; And air motion has decisive influence to the even mixing of mixed gas, the air inflow that charges into cylinder and combustion process, and then has influence on the discharging of power character, Economy, combustion noise and the harmful exhaust of motor.Therefore, the mixed gas motion reduces Combustion Cycle Variability to improving the velocity of propagation of flame of petrol engine in highly organized air flue and the cylinder, and adapting to lean combustion has important function.
At present; Each motorcycle engine manufacturer is all in the optimization work of being devoted to the cylinder head air flue, but the effect that obtains is little, and main cause is the layout of intake and exhaust port because of valve guide bushing and air valve seat ring; There is hollow to exist; Add the shape of air flue, the slick and sly degree and the stationarity of internal face transition, all influence the smooth and easy of intake and exhaust, so that influence the formation and the firing effect of mixed gas.
The model utility content
In view of this, to the deficiency that existing technology exists, the utility model aims to provide a kind of motorcycle engine cylinder head of vortex gradual change pipeline type air flue design.
For solving above technical problem; The technological scheme that the utility model provides is: a kind of motorcycle engine cylinder head; Comprise intake valve conduit, exhaust valve guide, inlet valve seat ring, exhaust valve seat insert, suction port, relief opening, intake duct and air outlet flue; The inwall of said intake duct is connected by the gradual change cross section slyness perpendicular to central axis respectively with the inwall of said air outlet flue, constitutes vortex gradual change pipeline type air flue.
More excellent ground, the inwall of said intake duct and the inwall of said air outlet flue are formed by connecting the circular arc slyness of some disparity curvatures respectively in the gradual change cross section perpendicular to central axis.
More excellent ground, said intake duct is the gradual shrinkage air flue of suction port to the firing chamber, said air outlet flue is that relief opening is arrived to flaring type air flue in the firing chamber.
More excellent ground, the middle part of said intake duct and said air outlet flue caves inward respectively, in order to arrange said inlet valve seat ring and said intake valve conduit and said exhaust valve seat insert and said exhaust valve guide respectively.
More excellent ground, the angle between the center line of said inlet valve seat ring and said intake valve conduit and the center line of said exhaust valve seat insert and said exhaust valve guide is 44 ° ± 4 °.
More excellent ground, the center line of said inlet valve seat ring and said intake valve conduit and the angle between the cylinder head center line are 21 ° ± 2 °, the angle between the center line of said exhaust valve seat insert and said exhaust valve guide and the cylinder head center line is 23 ° ± 2 °.
Compared with prior art; The utility model motorcycle engine cylinder head adopts the air flue of optimizing, and is specially the vortex gradual change pipeline type air flue that is formed by connecting the gradual change cross section slyness perpendicular to central axis, has reduced the pressure loss thus; Improved the gas communication ability; Make mixed gas be inhaled into and fully fusion, can realize lean combustion, improved fuel efficiency with swirl shape.
Further; The utility model has been optimized and revised the angle of inlet and outlet door conduit and inlet and outlet gate seat circle; Its use level body design cam molded lines and butterfly type firing chamber efficiently can be improved the volumetric efficiency of motor, thereby improved engine power performance and economic performance.
Description of drawings
Fig. 1 adopts the structural representation of the motorcycle engine cylinder head of vortex gradual change pipeline type air flue design for the utility model;
Fig. 2 is inlet and exhaust valve conduit and an inlet and exhaust valve seat ring angle position view among Fig. 1;
Fig. 3 is an intake and exhaust port representative section position view among Fig. 1;
Fig. 4 is an a-a schematic cross-section among Fig. 3;
Fig. 5 is a b-b schematic cross-section among Fig. 3;
Fig. 6 is a c-c schematic cross-section among Fig. 3;
Fig. 7 is a d-d schematic cross-section among Fig. 3;
Fig. 8 is an e-e schematic cross-section among Fig. 3;
Fig. 9 is a f-f schematic cross-section among Fig. 3;
Figure 10 is a g-g schematic cross-section among Fig. 3;
Among Fig. 1～Figure 10, relevant description of reference numerals is following:
1, cylinder head; 2, exhaust valve guide; 3, intake valve conduit; 4, suction port; 5, intake duct; 6, inlet valve seat ring; 7, exhaust valve seat insert; 8, air outlet flue; 9, relief opening.
Embodiment
The basic design of the utility model motorcycle engine cylinder head preferred embodiment is, optimal design air flue shape, and the angle of adjustment inlet and outlet door conduit and inlet and outlet gate seat circle is eliminated the interior hollow of air flue, makes air flue internal face rounding off, particularly:
1, optimal design air flue shape: make the layout of suction port, intake duct reduce intake resistance as far as possible, improve the air inlet aeration quantity, mixed airflow is smooth as far as possible through locating, and it is few to turn; And utilize shape air-flow in intake process of suction port and intake duct to accelerate velocity of propagation of flame around the air inlet eddy flow that rotatablely moves and form of cylinder centerline, and improve rate of burning, the thermal efficiency is improved; Air outlet flue is designed to comparatively ideal flaring type air flue, to guarantee to discharge the abundant expansion and the inertia drainage of gas, reduces exhaust back pressure, increases cylinder intake air quantity, reduces exhaust sound.
2, optimize and revise that cylinder head is enterprising, the angle of exhaust valve guide and inlet and outlet gate seat circle: making the center line of intake valve conduit, inlet valve seat ring and the angle of cylinder head center line is 21 ° ± 2 ° (being preferably 21 °); The angle of the center line of exhaust valve guide, exhaust valve seat insert and cylinder head center line is 23 ° ± 2 °, and (be preferably 23 °, both add up to 44 ° ± 4 ° (being preferably 44 °); Adjusted angle is much smaller than traditional angle, can suitably increase valve overlap like this, the purpose of design of the butterfly type firing chamber of reaching; Make simultaneously air flue turn little, gradual change is slick and sly, helps forming around eddy flow by force, improving the volumetric efficiency and the mixture homogeneity of motor, thereby improves engine power performance and economic performance.
Describe in further detail below in conjunction with the preferred embodiment of accompanying drawing, so that the public grasps the technological means of implementing the utility model better, and make much of the effect that the utility model can reach, but the utility model is not limited to said embodiment the utility model.
Referring to Fig. 1, be the structural representation of the motorcycle engine cylinder head of the utility model vortex gradual change pipeline type air flue design.This motorcycle engine cylinder head (hereinafter to be referred as cylinder head) 1; Comprise intake valve conduit 3, exhaust valve guide 2, inlet valve seat ring 6, exhaust valve seat insert 7, suction port 4, relief opening 9, intake duct 5 and air outlet flue 8; The inwall of the inwall of intake duct 5 and air outlet flue 8 is formed slick and sly the connection by the gradual change cross section (being connected by the circular arc of some disparity curvatures is slick and sly respectively) perpendicular to central axis respectively; Constitute vortex gradual change pipeline type air flue thus; Wherein intake duct 5 is the gradual shrinkage air flue that suction port 4 (schemes to indicate) to the firing chamber, and air outlet flue 8 arrives flaring type air flue for the firing chamber to relief opening 9.
Referring to Fig. 2, be valve guide bushing in the utility model cylinder head preferred embodiment and air valve seat ring angle position view: the enterprising valve guide bushing of cylinder head 13, the center line of inlet valve seat ring 6 and the angle of cylinder head center line are α
1=21 °; The angle of the center line of exhaust valve guide 2, exhaust valve seat insert 7 and cylinder head center line is α on the cylinder head 1
2=23 °; The center line 6 of the enterprising valve guide bushing of cylinder head 13, inlet valve seat ring is α=α with the angle of the center line of exhaust valve guide 2, exhaust valve seat insert 7
1+ α
2=44 °.Littler than traditional angle through adjusted angle, its use level body design cam molded lines reaches butterfly type firing chamber efficiently, can improve the volumetric efficiency of motor, thereby improves engine power performance and economic performance.
In the preferred embodiment, the inwall of the inwall of intake duct 5 and air outlet flue 8 is formed by connecting the circular arc slyness of some disparity curvatures respectively in the gradual change cross section perpendicular to central axis, is summarized as follows.
Referring to Fig. 3; Be each representative section position view of the utility model cylinder head intake and exhaust port: the inlet and outlet road is to be formed by connecting numerous cross section slyness perpendicular to central axis; Wherein the diverse location on intake duct 5 has been chosen the concrete shape of four typical cross sections (a-a, b-b, c-c, d-d) as intake duct, and the diverse location on air outlet flue 8 has been chosen the concrete shape of three typical cross sections (e-e, f-f, g-g) as air outlet flue.
Referring to Fig. 4, be the utility model cylinder head intake duct a-a schematic cross-section: the central point of each circular arc is respectively O, O1, O2, O3, and the coordinate of each central point (with respect to the O point) is respectively: O1 is (7,0.6); O2 is (5.1,13.3); O3 is (5.1,5.4); The radius of each circular arc is respectively R12.7, R5.6, R7.6, R5.4; Smooth connection between each circular arc.
Referring to Fig. 5, be the utility model cylinder head intake duct b-b schematic cross-section: the central point of each circular arc is respectively O, O4, O5, O6, and the coordinate of each central point (with respect to the O point) is respectively: O4 is (3.8,4); O5 is (5.6,1.7); O6 is (6.4,24.8); The radius of each circular arc is respectively R11.5, R6.1, R6, R17.5; Smooth connection between each circular arc.
Referring to Fig. 6, be the utility model cylinder head intake duct c-c schematic cross-section: the central point of each circular arc is respectively O, O7, O8, O9, and the coordinate of each central point (with respect to the O point) is respectively: O7 is (5.5,2.3); O8 is (3.5,10.1); O9 is (5.8 ,-1.6); The radius of each circular arc is respectively R11.3, R5.4, R7, R5.3; Smooth connection between each circular arc.
Referring to Fig. 7, be the utility model cylinder head intake duct d-d schematic cross-section: the center of circle is the O point, and radius R is 11.2 circle.
Referring to Fig. 8, be the utility model cylinder head air outlet flue e-e schematic cross-section: the central point of each circular arc is respectively O, O10, O11, and the coordinate of each central point (with respect to the O point) is respectively: O10 is (0.7,3.8); O11 is (0.2 ,-1.8); The radius of each circular arc is respectively R9.1, R4.7, R9.7; Smooth connection between each circular arc.
Referring to Fig. 9, be the utility model cylinder head air outlet flue f-f schematic cross-section: the central point of each circular arc is respectively O, O12, O13, O14, O15, O16, O17, and the coordinate of each central point (with respect to the O point) is respectively: O12 is (2.3 ,-0.6); O13 is (6.3,3.9); O14 is that (1.2,10.7), O15 are (0,3.1); O16 is (7.4,2.7); O17 is (7.7 ,-0.5); The radius of each circular arc is respectively R7, R1.8, R8.9, R11.2, R1.6, R3.7; Smooth connection between each circular arc.
Referring to Figure 10, be the utility model cylinder head air outlet flue g-g schematic cross-section: the central point of each circular arc is respectively O, O18, O19, and the coordinate of each central point (with respect to the O point) is respectively: O18 is (3.7 ,-1.4); O19 is (1.8,1.7); The radius of each circular arc is respectively R11.4, R8.9, R9.9; Smooth connection between each circular arc.
More than to disclosed embodiment's above-mentioned explanation, make related domain professional and technical personnel can realize or use the utility model.Defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments in its Chinese.Therefore, above-mentioned preferred implementation should not be regarded as the restriction to the utility model, and the protection domain of the utility model should be as the criterion with claim institute restricted portion.
Should be noted that; For those skilled in the art; In spirit that does not break away from the utility model and scope; Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, thereby these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (6)
1. motorcycle engine cylinder head; Comprise intake valve conduit, exhaust valve guide, inlet valve seat ring, exhaust valve seat insert, suction port, relief opening, intake duct and air outlet flue; It is characterized in that; The inwall of said intake duct is connected by the gradual change cross section slyness perpendicular to central axis respectively with the inwall of said air outlet flue, constitutes vortex gradual change pipeline type air flue.
2. motorcycle engine cylinder head as claimed in claim 1 is characterized in that, the inwall of said intake duct and the inwall of said air outlet flue are formed by connecting the circular arc slyness of some disparity curvatures respectively in the gradual change cross section perpendicular to central axis.
3. motorcycle engine cylinder head as claimed in claim 1 is characterized in that, said intake duct is the gradual shrinkage air flue of suction port to the firing chamber, and said air outlet flue is that relief opening is arrived to flaring type air flue in the firing chamber.
4. like each described motorcycle engine cylinder head of claim 1～3; It is characterized in that; The middle part of said intake duct and said air outlet flue caves inward respectively, in order to arrange said inlet valve seat ring and said intake valve conduit and said exhaust valve seat insert and said exhaust valve guide respectively.
5. motorcycle engine cylinder head as claimed in claim 4 is characterized in that, the angle between the center line of said inlet valve seat ring and said intake valve conduit and the center line of said exhaust valve seat insert and said exhaust valve guide is 44 ° ± 4 °.
6. motorcycle engine cylinder head as claimed in claim 5; It is characterized in that; Angle between the center line of said inlet valve seat ring and said intake valve conduit and the cylinder head center line is 21 ° ± 2 °, and the angle between the center line of said exhaust valve seat insert and said exhaust valve guide and the cylinder head center line is 23 ° ± 2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203746063U CN202280530U (en) | 2011-09-27 | 2011-09-27 | Motorcycle engine air cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203746063U CN202280530U (en) | 2011-09-27 | 2011-09-27 | Motorcycle engine air cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280530U true CN202280530U (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203746063U Expired - Fee Related CN202280530U (en) | 2011-09-27 | 2011-09-27 | Motorcycle engine air cylinder head |
Country Status (1)
| Country | Link |
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| CN (1) | CN202280530U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720588A (en) * | 2012-07-03 | 2012-10-10 | 中国南方航空工业(集团)有限公司 | Anti-ice device and anti-ice method of aero piston engine |
| CN103573461A (en) * | 2013-11-08 | 2014-02-12 | 重庆工商职业学院 | Low-speed engine cylinder cover air inlet and exhaust duct structure and optimization method thereof |
| CN107701325A (en) * | 2017-11-15 | 2018-02-16 | 宁波舒迪赛尔动力科技有限公司 | A kind of engine cylinder cap air flue |
| CN108035820A (en) * | 2017-12-04 | 2018-05-15 | 杨程日 | A kind of cylinder cover of automobile engine air intake duct |
| CN108266285A (en) * | 2017-01-02 | 2018-07-10 | 福特环球技术公司 | Internal combustion engine with cylinder cover |
| CN110030073A (en) * | 2019-05-05 | 2019-07-19 | 柳州上汽汽车变速器有限公司柳东分公司 | A kind of exhaust system of gasoline engine |
-
2011
- 2011-09-27 CN CN2011203746063U patent/CN202280530U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720588A (en) * | 2012-07-03 | 2012-10-10 | 中国南方航空工业(集团)有限公司 | Anti-ice device and anti-ice method of aero piston engine |
| CN102720588B (en) * | 2012-07-03 | 2015-05-27 | 中国南方航空工业(集团)有限公司 | Anti-ice device and anti-ice method of aero piston engine |
| CN103573461A (en) * | 2013-11-08 | 2014-02-12 | 重庆工商职业学院 | Low-speed engine cylinder cover air inlet and exhaust duct structure and optimization method thereof |
| CN103573461B (en) * | 2013-11-08 | 2016-12-07 | 重庆工商职业学院 | Low speed engine cylinder head entering and exhaust channel structure and optimization method thereof |
| CN108266285A (en) * | 2017-01-02 | 2018-07-10 | 福特环球技术公司 | Internal combustion engine with cylinder cover |
| CN108266285B (en) * | 2017-01-02 | 2022-04-15 | 福特环球技术公司 | Internal combustion engine with cylinder head |
| CN107701325A (en) * | 2017-11-15 | 2018-02-16 | 宁波舒迪赛尔动力科技有限公司 | A kind of engine cylinder cap air flue |
| CN108035820A (en) * | 2017-12-04 | 2018-05-15 | 杨程日 | A kind of cylinder cover of automobile engine air intake duct |
| CN110030073A (en) * | 2019-05-05 | 2019-07-19 | 柳州上汽汽车变速器有限公司柳东分公司 | A kind of exhaust system of gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cylinder head of motorcycle engine Effective date of registration: 20181217 Granted publication date: 20120620 Pledgee: Guangzhou Conghua Branch of China Construction Bank Co., Ltd. Pledgor: GUANGZHOU SANYA MOTORCYCLE CO. LTD. Registration number: 2018440020083 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190820 Granted publication date: 20120620 Pledgee: Guangzhou Conghua Branch of China Construction Bank Co., Ltd. Pledgor: GUANGZHOU SANYA MOTORCYCLE CO. LTD. Registration number: 2018440020083 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cylinder head of motorcycle engine Effective date of registration: 20190823 Granted publication date: 20120620 Pledgee: Guangzhou Conghua Branch of China Construction Bank Co., Ltd. Pledgor: GUANGZHOU SANYA MOTORCYCLE CO. LTD. Registration number: Y2019440000022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20200927 |