CN102392749A - Two-stroke internal combustion engine cylinder sleeve of double-layer scavenging port - Google Patents
Two-stroke internal combustion engine cylinder sleeve of double-layer scavenging port Download PDFInfo
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- CN102392749A CN102392749A CN2011103120590A CN201110312059A CN102392749A CN 102392749 A CN102392749 A CN 102392749A CN 2011103120590 A CN2011103120590 A CN 2011103120590A CN 201110312059 A CN201110312059 A CN 201110312059A CN 102392749 A CN102392749 A CN 102392749A
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- scavenging port
- scavenging
- cylinder sleeve
- combustion engine
- internal combustion
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- 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.)
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Abstract
The invention relates to an internal combustion engine, in particular to a two-stroke internal combustion engine cylinder sleeve of a double-layer scavenging port, wherein a direct flow scavenging port (2) and a tangent scavenging port (3) are arranged in parallel between tow sealing grooves (1) of the cylinder sleeve, and peripherally uniformly arranged at the cylinder sleeve. The two-stroke internal combustion engine cylinder sleeve provided by the invention can improve the scavenging efficiency; the oil can be fully burned by the cylinder sleeve; and the exhaustion rate of HC is reduced.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, be specifically related to a kind of two stroke IC engine cylinder liner of double-deck scavenging port.
Background technique
At present, two stroke IC engine scavenging mode mainly is divided into cross flow scavenging, loop scavenging, mixed flow scavenging and uniflow scavenging.Along with energy-conserving and emission-cutting technology constantly develops, engine exhaust is proposed higher requirement, and, be to cause the high main cause of two stroke IC engine HC discharging for the short-circuit loss of incoming mixture in the two stroke IC engine scavenging process.
Summary of the invention
The purpose of this invention is to provide a kind of two stroke IC engine cylinder liner of double-deck scavenging port, can improve scavenging efficiency, make the abundant burning of fuel oil, reduce the HC discharge amount.
Technological scheme of the present invention is: the two stroke IC engine cylinder liner of double-deck scavenging port; Between two place's sealed grooves 1 of cylinder liner, be provided with uniflow scavenging mouth 2 and tangential scavenging port 3; Uniflow scavenging mouth 2 and tangential scavenging port 3 be for being arranged side by side, and respectively in circumferentially evenly setting of cylinder liner.
Described uniflow scavenging mouth 2 is at least two.
Described tangential scavenging port 3 is at least two.
The present invention compared with prior art has following beneficial effect: can improve scavenging efficiency, make the abundant burning of fuel oil, reduce the HC discharge amount.
Description of drawings
Fig. 1 is a structural drawing of the present invention.
Embodiment
Of Fig. 1; The two stroke IC engine cylinder liner of double-deck scavenging port; Between two place's sealed grooves 1 of cylinder liner, be provided with uniflow scavenging mouth 2 and tangential scavenging port 3, uniflow scavenging mouth 2 and tangential scavenging port 3 be for being arranged side by side, and respectively in circumferentially evenly setting of cylinder liner.The quantity of uniflow scavenging mouth 2 and tangential scavenging port 3 is 16.
In engine working process, piston moves to lower dead center, when the first road ring of the piston lower limb through the tangential scavenging port; Because of in-cylinder pressure is low inlet stream is got into, exhaust gas inside cylinder reduces gradually, and in cylinder, forms big rotating vortex; When the piston first road inscription of loop during to scavenging port, uniflow scavenging promotes exhaust gas inside cylinder integral body and discharges, and simultaneously above-mentioned big eddy current is broken for many little eddy current; Gas in the jar is fully mixed, help increasing the turbulence intensity of mixed gas in the cylinder; And, impel oil droplet fragmentation, atomizing and oil gas to mix in the fuel injection stage, and make the abundant burning of fuel oil, reduce the HC discharge amount.
Claims (3)
1. the two stroke IC engine cylinder liner of double-deck scavenging port; Between two place's sealed grooves (1) of cylinder liner, be provided with uniflow scavenging mouth (2) and tangential scavenging port (3); It is characterized in that; Uniflow scavenging mouth (2) and tangential scavenging port (3) be for being arranged side by side, and circumferentially evenly be provided with in cylinder liner respectively.
2. according to the two stroke IC engine cylinder liner of right 1 described double-deck scavenging port, it is characterized in that uniflow scavenging mouth (2) is at least two.
3. according to the two stroke IC engine cylinder liner of right 1 described double-deck scavenging port, it is characterized in that tangential scavenging port (3) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103120590A CN102392749A (en) | 2011-10-16 | 2011-10-16 | Two-stroke internal combustion engine cylinder sleeve of double-layer scavenging port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103120590A CN102392749A (en) | 2011-10-16 | 2011-10-16 | Two-stroke internal combustion engine cylinder sleeve of double-layer scavenging port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102392749A true CN102392749A (en) | 2012-03-28 |
Family
ID=45860113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103120590A Pending CN102392749A (en) | 2011-10-16 | 2011-10-16 | Two-stroke internal combustion engine cylinder sleeve of double-layer scavenging port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392749A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB517262A (en) * | 1939-01-21 | 1940-01-24 | Vilhelm Mickelsen | Improvements relating to the scavenging ports in the cylinders of two-stroke-cycle internal combustion engines |
| DE3510770A1 (en) * | 1985-03-25 | 1986-10-16 | Gebrüder Sulzer AG, Winterthur | Two-stroke internal combustion engine with exhaust valve arranged in the cylinder head |
| CN2256940Y (en) * | 1994-06-27 | 1997-06-25 | 李荟敏 | Scavenging system for two-stroke engine |
| JP2005030306A (en) * | 2003-07-14 | 2005-02-03 | Daihatsu Motor Co Ltd | Uniflow type two-cycle multi-cylinder internal combustion engine |
-
2011
- 2011-10-16 CN CN2011103120590A patent/CN102392749A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB517262A (en) * | 1939-01-21 | 1940-01-24 | Vilhelm Mickelsen | Improvements relating to the scavenging ports in the cylinders of two-stroke-cycle internal combustion engines |
| DE3510770A1 (en) * | 1985-03-25 | 1986-10-16 | Gebrüder Sulzer AG, Winterthur | Two-stroke internal combustion engine with exhaust valve arranged in the cylinder head |
| CN2256940Y (en) * | 1994-06-27 | 1997-06-25 | 李荟敏 | Scavenging system for two-stroke engine |
| JP2005030306A (en) * | 2003-07-14 | 2005-02-03 | Daihatsu Motor Co Ltd | Uniflow type two-cycle multi-cylinder internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |