CN201246212Y - Lamination scavenging cylinder of engine - Google Patents
Lamination scavenging cylinder of engine Download PDFInfo
- Publication number
- CN201246212Y CN201246212Y CNU2008201325180U CN200820132518U CN201246212Y CN 201246212 Y CN201246212 Y CN 201246212Y CN U2008201325180 U CNU2008201325180 U CN U2008201325180U CN 200820132518 U CN200820132518 U CN 200820132518U CN 201246212 Y CN201246212 Y CN 201246212Y
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- CN
- China
- Prior art keywords
- scavenging
- air
- cylinder
- piston
- air belt
- 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.)
- 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 stratified scavenging cylinder of an engine, which comprises a crankcase and a cylinder body, wherein, a piston and a connecting rod connected with the piston are arranged in the cylinder body, a combustible gas inlet port is formed on the cylinder body, and a groove is formed on the inner chamber wall of the cylinder body to form a scavenging air belt. The stratified scavenging cylinder is characterized in that an air inlet port is also formed on the cylinder body, an air way is arranged on the piston, and the air way is communicated with the scavenging air belt when the air inlet port is communicated with the air way. A flashboard is arranged at the opening of the groove which forms the scavenging air belt, the flashboard is connected with the cylinder body, a cavity type scavenging air belt is formed between the flashboard and inner chamber wall of the cylinder body, and the cavity type scavenging air belt is provided with an upper opening and a lower opening. The utility model firstly adopts the fresh air stored in the scavenging air belt for scavenging, and effectively puts an end to combustible gas escaping, thereby effectively reducing the fuel consumption and the exhaust emission. The adding of the flashboard on the scavenging air belt ensures the scavenging air belt becomes an independent cavity, thereby trying to avoid the mixing of the combustible mixture and the air.
Description
Technical field:
The utility model relates to the cylinder of two stroke engine, particularly to improving a kind of cylinder design that two stroke engine reduces the discharging aspect.
Background technique:
Because two stroke engine has characteristics such as simple in structure, in light weight, that power per liter is big, so, popular to people.Yet reason owing to self structure, the cylinder structure of traditional two stroke engine can only carry out scavenging with flammable mixed gas, have the escape of inflammable gas in scavenging process, the fuel consume of motor will be bigger like this, the CH in the exhaust gas discharged, NOx, and CO gas just many.
Summary of the invention
The utility model provides a kind of layered scavenging cylinder of motor, and its purpose is to overcome the prior art shortcoming, and a kind of layered scavenging cylinder that reduces oil consumption, reduces mixed combustible gas waste and exhaust pollution is provided.
For achieving the above object, the utility model is taked following scheme:
A kind of layered scavenging cylinder of motor, comprise crankcase and cylinder block, be provided with piston and the connecting rod that is connected with piston in the described cylinder block, offer the combustible gas intake duct on the cylinder block, the cylinder block internal chamber wall is provided with groove and becomes scavenging air belt, it is characterized in that: also offer free-air diffuser on the cylinder block, piston is provided with air passageways, and when free-air diffuser was communicated with air passageways, air passageways was communicated with scavenging air belt.
The above-mentioned groove that becomes scavenging air belt is provided with plate, and plate is connected with cylinder block, forms the cavate scavenging air belt between plate and the cylinder block internal chamber wall, and this cavate scavenging air belt has upper shed and under shed.
Above-mentioned plate length is less than groove length
When piston was positioned at top dead center, free-air diffuser, air passageways, scavenging air belt upper shed three were communicated with.
Above-mentioned free-air diffuser is positioned at the top of combustible gas intake duct.
Above-mentioned air passageways is a groove of being located at piston side wall.
The usefulness of technique scheme is: can store a certain amount of fresh air of formerly sending here through air passageways from free-air diffuser in the scavenging air belt of cylinder, like this, what initial scavenging was used is the fresh air of storing in the scavenging air belt, what escape away in the scavenging process also is fresh air, effectively stop the escape of inflammable gas, thereby effectively reduced the consumption and the exhaust gas discharging of fuel oil.Increased a plate on the scavenging air belt of cylinder, made scavenging air belt become an independent cavity, thereby avoid inflammable mixture and Air mixing as far as possible.
Description of drawings
Fig. 1 is the utility model structural representation
The body mode of execution
As shown in Figure 1, the utility model comprises crankcase and cylinder block 1, is provided with piston 2 and the connecting rod that is connected with piston 2 in the described cylinder block 1, offers combustible gas intake duct 7 on the cylinder block 1.
The cylinder block 1 that is arranged in the top of combustible gas intake duct 7 is provided with free-air diffuser 6; Piston 2 sidewalls have a groove, and this groove is an air passageways 21; Cylinder block 1 internal chamber wall is provided with groove, and this groove is provided with the plate 5 that is connected with cylinder block 1, forms cavate scavenging air belt 4 between plate 5 and the cylinder block internal chamber wall, and plate 5 length are less than groove length, and makes this cavate scavenging air belt 4 have upper shed 41 and under shed 42.
As shown in Figure 1, when piston 2 was positioned at top dead center, free-air diffuser 6, air passageways 21, scavenging air belt upper shed 41 threes were communicated with.
During cylinder work, when piston 2 is positioned at top dead center, free-air diffuser 6, air passageways 21, scavenging air belt upper shed 41 threes are communicated with, fresh air enters scavenging air belt 4 by free-air diffuser 6, air passageways 21 by scavenging air belt upper shed 41 and is stored in wherein, and inflammable mixture enters crankcase by combustible gas intake duct 7; Descent of piston, when the upper shed 41 of scavenging air belt 4 was communicated with the firing chamber 3 of piston 2 tops, fresh air wherein entered firing chamber 3 scavengings in advance.
Claims (6)
1, a kind of layered scavenging cylinder of motor, comprise crankcase and cylinder block, be provided with piston and the connecting rod that is connected with piston in the described cylinder block, offer the combustible gas intake duct on the cylinder block, the cylinder block internal chamber wall is provided with groove and becomes scavenging air belt, it is characterized in that: also offer free-air diffuser on the cylinder block, piston is provided with air passageways, and when free-air diffuser was communicated with air passageways, air passageways was communicated with scavenging air belt.
2, the layered scavenging cylinder of motor as claimed in claim 1, it is characterized in that: the groove that becomes scavenging air belt is provided with plate, plate is connected with cylinder block, forms the cavate scavenging air belt between plate and the cylinder block internal chamber wall, and this cavate scavenging air belt has upper shed and under shed.
3, the layered scavenging cylinder of motor as claimed in claim 2 is characterized in that: when piston was positioned at top dead center, free-air diffuser, air passageways, scavenging air belt upper shed three were communicated with.
4, the layered scavenging cylinder of motor as claimed in claim 2, it is characterized in that: plate length is less than groove length.
5, the layered scavenging cylinder of motor as claimed in claim 1, it is characterized in that: free-air diffuser is positioned at the top of combustible gas intake duct.
6, the layered scavenging cylinder of motor as claimed in claim 1 is characterized in that: air passageways is a groove of being located at piston side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325180U CN201246212Y (en) | 2008-08-12 | 2008-08-12 | Lamination scavenging cylinder of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325180U CN201246212Y (en) | 2008-08-12 | 2008-08-12 | Lamination scavenging cylinder of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246212Y true CN201246212Y (en) | 2009-05-27 |
Family
ID=40730032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201325180U Expired - Fee Related CN201246212Y (en) | 2008-08-12 | 2008-08-12 | Lamination scavenging cylinder of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246212Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107662A (en) * | 2021-05-08 | 2021-07-13 | 永康市茂金园林机械有限公司 | Cylinder piston unit for stratified scavenging two-stroke engine |
-
2008
- 2008-08-12 CN CNU2008201325180U patent/CN201246212Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107662A (en) * | 2021-05-08 | 2021-07-13 | 永康市茂金园林机械有限公司 | Cylinder piston unit for stratified scavenging two-stroke engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20110812 |