CN100575675C - Secondary air compensating system of motorcycle engine - Google Patents
Secondary air compensating system of motorcycle engine Download PDFInfo
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- CN100575675C CN100575675C CN200810144439A CN200810144439A CN100575675C CN 100575675 C CN100575675 C CN 100575675C CN 200810144439 A CN200810144439 A CN 200810144439A CN 200810144439 A CN200810144439 A CN 200810144439A CN 100575675 C CN100575675 C CN 100575675C
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- secondary air
- tonifying
- relief opening
- ring set
- compensating system
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Abstract
The invention discloses a kind of secondary air compensating system of motorcycle engine, comprise cylinder head, cylinder block and secondary air-supplementing valve, secondary air-supplementing valve is by the tonifying Qi hole access to engine relief opening on pipeline and the cylinder head, exhaust ports has additional the tonifying Qi ring set, one fixed gap is arranged between the interior edge face of tonifying Qi ring set and the relief opening, form circumference space between cylindrical and the relief opening inside around one week of relief opening.The present invention is by changing the engine exhaust mouth structure, form new secondary air compensating system, Cylinder-Head Temperature reduces than before improving under the same conditions, motor can obtain higher compression ratio and power, the secondary air compensating effect is desirable more, the catalytic converter light-off time shifts to an earlier date, and exhaust emissions reaches Europe III, state III emission standard.
Description
Technical field
The present invention relates at the engine exhaust port place, replenish the secondary air compensating system of fresh air by the negative pressure of exhaust generation by secondary air-supplementing valve to motor exhaust.
Background technique
As shown in Figure 1, 2, existing motorcycle directly increases by a tonifying Qi hole 2 in the exhaust ports of motor 1, replenish fresh air by the negative pressure that engine exhaust produces from secondary air-supplementing valve 3, the fresh air that replenishes can only enter the back from tonifying Qi hole 2 to be mixed with exhausting air, it is undesirable to cause gas to mix, emission effect is not good, the tail gas of discharging and the area of contact at engine exhaust port place are more, it is more to cause engine cylinder head to absorb heat, the temperature height, heat load is also higher, and the tail gas of discharging reduces because of the heat loss temperature, is unfavorable for the ignition of catalytic converter.
Summary of the invention
At the deficiency that prior art exists, the present invention aims to provide a kind of secondary air compensating system of motorcycle engine that can make fresh air and tail gas fully mix and effectively reduce the cylinder head temperature.
The technical solution used in the present invention is:
A kind of secondary air compensating system of motorcycle engine, comprise cylinder head, cylinder block and secondary air-supplementing valve, secondary air-supplementing valve is by the tonifying Qi hole access to engine relief opening on pipeline and the cylinder head, the exhaust ports of described cylinder head has additional the tonifying Qi ring set, one fixed gap is arranged between the interior edge face of tonifying Qi ring set and the relief opening, form circumference space between cylindrical and the relief opening inside around one week of relief opening.
Described tonifying Qi ring set is installed on the relief opening by Spielpassung, and the tonifying Qi ring set is by the boss location of cylinder head, and exhaust silencer is fixed on air compensation ring by flange plate and puts.
Described tonifying Qi ring set is installed on the relief opening by interference fit, and exhaust silencer is fixed on air compensation ring by flange plate and puts.
The material of described tonifying Qi ring set is common iron or thermal-protective material.
Described thermal-protective material is a pottery.
The present invention is by changing the engine exhaust mouth structure, form new secondary air compensating system, Cylinder-Head Temperature reduces than before improving under the same conditions, motor can obtain higher compression ratio and power, the secondary air compensating effect is desirable more, the catalytic converter light-off time shifts to an earlier date, and exhaust emissions reaches Europe III, state III emission standard.
Description of drawings
Fig. 1 is the structural representation of motorcycle and motor thereof;
Fig. 2 is the structural representation of existing motorcycle engine and secondary air compensating system thereof;
Fig. 3 is the structural representation of first embodiment of the invention;
Fig. 4 is the A portion enlarged view of Fig. 3;
Fig. 5 is the structural representation of second embodiment of the invention;
Fig. 6 is the A portion enlarged view of Fig. 5.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Description of reference numerals is as follows:
1---motor
2---the tonifying Qi hole
3---secondary air-supplementing valve
4---the tonifying Qi ring set
5---flange plate
6---exhaust silencer
Embodiment one
Shown in Fig. 3,4, secondary air-supplementing valve 3 is by the 2 access to engine relief openings of the tonifying Qi hole on pipeline and the cylinder head, the exhaust ports of cylinder head has additional tonifying Qi ring set 4, the material of tonifying Qi ring set 4 can be a common iron, or thermal-protective material, as pottery or the like, one fixed gap is arranged between its interior edge face and the relief opening, form circumference space between cylindrical and the relief opening inside around one week of relief opening, tonifying Qi ring set 4 is installed on the relief opening by interference fit, the tonifying Qi ring set can not be dismantled, and exhaust silencer 6 is fixed on air compensation ring by flange plate 5 and puts.
Embodiment two
Shown in Fig. 5,6, tonifying Qi ring set 4 also can be installed on the relief opening by Spielpassung, tonifying Qi ring set 4 is by the boss location of cylinder head, exhaust silencer 6 is fixed on air compensation ring by flange plate 5 and puts, tonifying Qi ring set 4 and exhaust silencer 6 can be dismantled simultaneously, all the other structures are identical with embodiment one, just do not giving unnecessary details.
The working principle of above-mentioned secondary air compensating system: when motor carries out secondary air compensating, because the effect of negative exhaust pressure, the circumference space that the fresh air that replenishes forms between tonifying Qi ring set and relief opening enters the tail gas, because the space is to form around one week of relief opening, so the area of contact of fresh air and tail gas increases greatly, the secondary combustion of favourable and tail gas reaches and reduces the exhaust emissions effect; Because of tail gas does not directly contact with the cylinder head relief opening, and the gap between tonifying Qi ring set and the relief opening has air to exist, played effect of heat insulation, thereby reduced Cylinder-Head Temperature, reduce heat load, and tail gas reduces because of heat loss, and delivery temperature is higher, helps shortening the light-off time of catalytic converter; In addition, because the reduction of Cylinder-Head Temperature, motor can obtain higher compression ratio and the power of Geng Gao.
The present invention is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.Though but on its shape or structure, do any variation, every identical with the present invention or akin technological scheme is all within its protection domain.
Claims (5)
1, a kind of secondary air compensating system of motorcycle engine, comprise cylinder head, cylinder block and secondary air-supplementing valve, secondary air-supplementing valve is by the tonifying Qi hole access to engine relief opening on pipeline and the cylinder head, it is characterized in that, the exhaust ports of described cylinder head has additional the tonifying Qi ring set, one fixed gap is arranged between the interior edge face of tonifying Qi ring set and the relief opening, form circumference space between the cylindrical of tonifying Qi ring set and the relief opening inside around one week of relief opening.
2, secondary air compensating system of motorcycle engine according to claim 1, it is characterized in that, described tonifying Qi ring set is installed on the relief opening by Spielpassung, and the tonifying Qi ring set is by the boss location of cylinder head, and exhaust silencer is fixed on air compensation ring by flange plate and puts.
3, secondary air compensating system of motorcycle engine according to claim 1 is characterized in that, described tonifying Qi ring set is installed on the relief opening by interference fit, and exhaust silencer is fixed on air compensation ring by flange plate and puts.
4, secondary air compensating system of motorcycle engine according to claim 1 is characterized in that, the material of described tonifying Qi ring set is common iron or thermal-protective material.
5, secondary air compensating system of motorcycle engine according to claim 4 is characterized in that, described thermal-protective material is a pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810144439A CN100575675C (en) | 2008-07-31 | 2008-07-31 | Secondary air compensating system of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810144439A CN100575675C (en) | 2008-07-31 | 2008-07-31 | Secondary air compensating system of motorcycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101349184A CN101349184A (en) | 2009-01-21 |
| CN100575675C true CN100575675C (en) | 2009-12-30 |
Family
ID=40268119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810144439A Active CN100575675C (en) | 2008-07-31 | 2008-07-31 | Secondary air compensating system of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100575675C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727627A (en) * | 2020-11-16 | 2021-04-30 | 浙江春风动力股份有限公司 | Fuel motorcycle |
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2008
- 2008-07-31 CN CN200810144439A patent/CN100575675C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101349184A (en) | 2009-01-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU HAOJIN MOTORCAR CO., LTD. Free format text: FORMER OWNER: ZENGCHENG HAILI MOTORCAR CO., LTD. Effective date: 20100527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511340 SHANGSHAO INDUSTRIAL DISTRICT, LIXIN ROAD, XINTANG TOWN, ZENGCHENG CITY, GUANGDONG PROVINCE TO: 511340 SHANGSHAO INDUSTRIAL DISTRICT, LIXIN ROAD, XINTANG TOWN, ZENGCHENG, GUANGZHOU CITY, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100527 Address after: 511340 Shao Industrial Zone, Lai Lai Road, Xintang Town, Zengcheng Town, Guangzhou, Guangdong Patentee after: The Guangzhou person of outstanding talent enters motor bike Company Limited by Shares Address before: 511340, Shao Yang Industrial Zone, Lai Lai Road, Xintang Town, Zengcheng, Guangdong Patentee before: Zengcheng Haili Motorcycle Co., Ltd. |