CN206309476U - A kind of two-stroke internal combustion engine - Google Patents
A kind of two-stroke internal combustion engine Download PDFInfo
- Publication number
- CN206309476U CN206309476U CN201621211485.XU CN201621211485U CN206309476U CN 206309476 U CN206309476 U CN 206309476U CN 201621211485 U CN201621211485 U CN 201621211485U CN 206309476 U CN206309476 U CN 206309476U
- Authority
- CN
- China
- Prior art keywords
- scavenging
- cylinder
- bent axle
- combustion engine
- internal combustion
- 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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Classifications
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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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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a kind of two-stroke internal combustion engine, including spark plug, exhaust outlet, air inlet, piston, bent axle, crankcase, scavenging air belt, connecting rod and cylinder, spark plug is placed in cylinder head, exhaust outlet is provided with cylinder upper end, air inlet is provided with cylinder lower end, crankcase is additionally provided with cylinder, bent axle is located in crankcase, bent axle is to being provided with scavenging air belt between cylinder, scavenging air belt includes that scavenging entrance and scavenging are exported, scavenging entrance is located at bent axle chamber interior wall, and scavenging outlet is located at cylinder sidewall, and scavenging is exported towards exhaust outlet.The utility model simple structure, can effectively accelerate the flowing of cylinder interior gas, accelerate the exclusion of waste gas, increase internal combustion engine effective power.
Description
Technical field
The utility model belongs to technical field of engines, and in particular to a kind of two-stroke internal combustion engine.
Background technology
In the development of modern society, people to the dynamic property and cost-effectiveness requirement more and more higher of engine, in discharge capacity one
The power output of raising engine is wanted in the case of fixed, most efficient method is just to provide more fuel and is burnt, but
Fuel is burnt in the case of air capacity deficiency, and combustion efficiency is poor, when distributive value is certain, when cylinder intake air quantity is larger, then
Burning is preferable, and oil consumption and discharge are relatively low.Traditional naturally aspirated engine fully relies on when piston is moved downward the shape in cylinder
Into vacuum suck air, this traditional approach is difficult to provide the air of q.s to support the burning completely of fuel.Tradition
Two-stroke internal combustion engine generally includes cylinder body and piston, and the air inlet, exhaust outlet on two-stroke internal combustion engine cylinder body are set under cylinder wall
Portion, exhaust outlet and air inlet location comparison are near, cause scavenging short circuit, both enter the portion gas of cylinder body directly from exhaust outlet row
Go out, cylinder head scavenging is insufficient, and mixed gas possible trouble in part is burnt and directly enters air from exhaust outlet, cause waste of fuel with
Technical problem waste gas HC high.When two-stroke internal combustion engine is taken a breath, breathing action is carried out simultaneously, and fresh charge is easy to mix with waste gas
Mixed, coefficient of residual gas is big in cylinder.After two-stroke internal combustion engine ventilation, remaining how much waste gas in cylinder is filled with cylinder in other words
How many fresh charges, directly affect engine performance, and two-stroke internal combustion engine does not have single suction stroke and instroke, it is impossible to
Using the progradation solution removing exhaust gas of piston, clean up cylinder relatively difficult, it is difficult to obtain high-quality scavenging quality.
The content of the invention
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is proposed in a kind of two-stroke
Combustion engine, by a kind of with fan-shaped crankshaft structure, solve part unburned mixture body and is expelled directly out and together with waste gas
The technical problem of discharge, reduces the HC contents in waste gas, improves air inlet, exhaust and scavenging efficiency, improves having for internal combustion engine
Effect power.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of two-stroke internal combustion engine includes
Spark plug, exhaust outlet, air inlet, piston, bent axle, crankcase, scavenging air belt, connecting rod and cylinder, spark plug are placed in cylinder head,
Cylinder upper end is provided with exhaust outlet, and crankcase is additionally provided with the case where cylinder lower end is provided with air inlet, cylinder, and bent axle is located in crankcase,
Bent axle includes that scavenging entrance and scavenging are exported to scavenging air belt, scavenging air belt is provided between cylinder, and scavenging entrance is located in crankcase
Wall, scavenging outlet is located at cylinder sidewall, and scavenging is exported towards exhaust outlet.
The bent axle is provided with flabellum more than two panels, and flabellum is located at bent axle side, and bent axle opposite side is provided with counterpoise
Balancing weight.There is spoon shape groove on the flabellum, spoon shape groove is provided with gas compression towards scavenging entrance, the scavenging porch
Storehouse.The check valve of control air-flow is equipped with the exhaust outlet and scavenging air belt.The check valve is high temperature resistant check valve.It is described to sweep
The air filtering core that gas is swept for filtering is provided with air flue.
The utility model beneficial effect is:The utility model sets flabellum, piston up-down band dynamic crankshaft on bent axle
Rotation so that bent axle can increase the flowing of air in crankcase when rotated.In scavenging process, the rotation of bent axle can be increased
The flow of air, makes gas exhaust gas inside cylinder try one's best discharge again, so that internal combustion engine effective power becomes big.
Brief description of the drawings
The mark in the content and figure expressed by this specification accompanying drawing is briefly described below：
Fig. 1 is a kind of two-stroke internal combustion engine structure chart of specific embodiment of the present utility model；
Fig. 2 is the part-structure figure with flabellum bent axle of specific embodiment of the present utility model；
Fig. 3 is the profile of the flabellum of specific embodiment of the present utility model.
Wherein, 1, spark plug, 2, exhaust outlet, 3, air inlet, 4, piston, 5, bent axle, 6, crankcase, 7, scavenging air belt, 8, even
Bar, 9, cylinder.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, specific embodiment of the present utility model is each as involved by
The shape of component, the mutual alignment between construction, each several part and annexation, the effect of each several part and operation principle, manufacture work
Skill and operate with method etc., are described in further detail, to help those skilled in the art to invention of the present utility model
Design, technical scheme have more complete, accurate and deep understanding.
As illustrated, a kind of two-stroke internal combustion engine includes spark plug 1, exhaust outlet 2, air inlet 3, piston 4, bent axle 5, bent axle
Case 6, scavenging air belt 7, connecting rod 8 and cylinder 9, spark plug 1 are placed in the top of cylinder 9, exhaust outlet 2 are provided with the upper end of cylinder 9, in cylinder 9
Lower end is provided with air inlet 3, and crankcase 6 is additionally provided with cylinder 9, and bent axle 5 is located in crankcase 6, and bent axle 5 sets between cylinder 9
There is scavenging air belt 7, scavenging air belt 7 includes that scavenging entrance and scavenging are exported, and scavenging entrance is located at the inwall of crankcase 6, and scavenging outlet is located at
The side wall of cylinder 9, and scavenging outlet is towards exhaust outlet 2.Bent axle 5 is provided with flabellum more than two panels, and flabellum is located at the side of bent axle 5,
The opposite side of bent axle 5 is provided with the balancing weight of counterpoise.Flabellum is in spoon shape groove, and spoon shape groove enters towards scavenging entrance in scavenging
Mouth is provided with air compression bin, and flabellum rotation can compress air to air compression bin and be stored, air inlet 3, the and of exhaust outlet 2
The high pressure check valve check valve of control air-flow is equipped with scavenging air belt 7.It is provided with the scavenging air belt 7 and sweeps gas for filtering
Air filtering core, for impurity screening, prevents impurity from entering cylinder 9, damages internal combustion engine.Piston 4 begins to move up from lower dead center
When, air intake duct is opened to combustion gas, scavenging air belt 7 is filled with cylinder body, the scavenging outlet alignment scavenging of exhaust outlet 2, accelerates gas in cylinder 9
Discharge, piston 4 continues up scavenging air belt 7 and exhaust outlet 2 when piston 4 built air inlet 3 and closes, piston 4 continue to
Upper motion compresses combustion gas to top dead centre, now spark plug 1 lights combustion gas, produces detonation, and piston 4 is moved downward, and by connecting rod 8
Bent axle 5 is rotated, so on bent axle 5 flabellum rotation compress air to scavenging air belt 7, when piston 4 moves to air inlet
During 3 position of mouth, exhaust outlet 2 and scavenging air belt 7 are opened, and accelerate the discharge of waste gas, and are filled with new combustion gas, and bent axle is continued by inertia
Motion completes next working cycles upwards to rotarily drive piston 4.
The utility model is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model is implemented not to be received
The limitation of aforesaid way, as long as employing changing for the various unsubstantialities that method design of the present utility model and technical scheme are carried out
Enter, or it is not improved by it is of the present utility model design and technical scheme directly apply to other occasions, in the utility model
Protection domain within.Protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of two-stroke internal combustion engine, it is characterised in that the two-stroke internal combustion engine includes exhaust outlet (2), air inlet (3), living
Plug (4), bent axle (5), crankcase (6), scavenging air belt (7), connecting rod (8) and cylinder (9), exhaust outlet is provided with cylinder (9) upper end
(2), cylinder (9) lower end is provided with air inlet (3), and crankcase (6) is additionally provided with cylinder (9), and bent axle (5) is interior positioned at crankcase (6),
Scavenging air belt (7) is provided between bent axle (5) and cylinder (9), scavenging air belt (7) is exported including scavenging entrance and scavenging, scavenging entrance position
In crankcase (6) inwall, scavenging outlet is located at cylinder (9) side wall, and scavenging outlet towards exhaust outlet (2), and bent axle (5) is provided with
Flabellum more than two panels, flabellum is located at bent axle (5) side, and bent axle (5) opposite side is provided with the balancing weight of counterpoise；The flabellum
On have spoon shape groove, spoon shape groove is provided with gas compression storehouse towards scavenging entrance, scavenging porch.
2. two-stroke internal combustion engine according to claim 1, it is characterised in that in the exhaust outlet (2) and scavenging air belt (7)
It is provided with the check valve of control air-flow.
3. two-stroke internal combustion engine according to claim 2, it is characterised in that the check valve is high temperature resistant check valve.
4. two-stroke internal combustion engine according to claim 1, it is characterised in that is provided with for filtering in the scavenging air belt (7)
Sweep the air filtering core of gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211485.XU CN206309476U (en) | 2016-11-10 | 2016-11-10 | A kind of two-stroke internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211485.XU CN206309476U (en) | 2016-11-10 | 2016-11-10 | A kind of two-stroke internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309476U true CN206309476U (en) | 2017-07-07 |
Family
ID=59244975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211485.XU Expired - Fee Related CN206309476U (en) | 2016-11-10 | 2016-11-10 | A kind of two-stroke internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538348A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of exhaust of light aircraft engine and pressurization coupling device |
-
2016
- 2016-11-10 CN CN201621211485.XU patent/CN206309476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538348A (en) * | 2018-10-16 | 2019-03-29 | 安徽省飞腾航空科技有限公司 | A kind of exhaust of light aircraft engine and pressurization coupling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20171110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |