CN203547877U - Air cooling two-stroke gasoline engine - Google Patents
Air cooling two-stroke gasoline engine Download PDFInfo
- Publication number
- CN203547877U CN203547877U CN201320731481.4U CN201320731481U CN203547877U CN 203547877 U CN203547877 U CN 203547877U CN 201320731481 U CN201320731481 U CN 201320731481U CN 203547877 U CN203547877 U CN 203547877U
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- inlet pipe
- steam inlet
- cooling
- gasoline engine
- air
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- 238000001816 cooling Methods 0.000 title claims abstract description 47
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses an air cooling two-stroke gasoline engine. The air cooling two-stroke gasoline engine comprises a cylinder body assembly, a left crankshaft box body, a right crankshaft box body, a crankshaft connecting rod assembly, an igniter, a steam inlet pipe and a two-way axial flow cooling fan. The cooling fan is mounted on a rotating shaft of a crankshaft and is driven to rotate along with rotation of the rotating shaft, so that cooling air is used for cooling a clutch and a gasoline engine body through a cooling air duct. The steam inlet pipe comprises a steam inlet pipe body, and the steam inlet pipe body is provided with a steam inlet pipe inner end opening and a steam inlet pipe outer end opening. A flow guide pipe is further arranged inside the steam inlet pipe body in a sleeved mode, and the flow guide pipe extends in the steam inlet pipe body and is exposed out of the steam inlet pipe inner end opening. According to the air cooling two-stroke gasoline engine, the structure of the steam inlet pipe is changed, the flow guide pipe is arranged inside the steam inlet pipe body in the sleeved mode, the phenomenon that a gas-oil mixture sprays reversely in the steam inlet pipe can be avoided, so that the utilization rate of fuel oil of the gasoline engine is improved, fuel oil waste is prevented, and thus the service efficiency of the gasoline engine is improved.
Description
Technical field
The utility model relates to field of internal combustion engine, relates in particular to a kind of air-cooled two-stroke gasoline engine.
Background technique
Petrol engine (Gasoline Engine) is usingd gasoline as fuel, heat energy is changed into the motor of kinetic energy.Gas supply system is mixed gasoline by steam inlet pipe and is sucked cylinder (or adopting gasoline in in-cylinder injection mode) with air, after overcompression reaches certain temperature and pressure, by spark ignitor, make gas expansion for doing work.The feature of petrol engine is that rotating speed is high, simple in structure, quality is light, cheap, smooth running, easy maintenance.Petrol engine as power source extensively adopts in fields such as communications and transportation, agricultural drainage and irrigation plantation, civil engineering constructions.
The structure of common air-cooled two-stroke gasoline engine mainly comprises cylinder body assembly, left and right crankcase body, the total connecting rod one-tenth of bent axle, piston, igniter, fuel oil supply system, steam inlet pipe, air filter, steam inlet pipe and cooling fan, cooling fan is arranged in the rotating shaft of bent axle and is driven to rotate along with the rotation of rotating shaft, thereby makes cooling air by carrying out cooling along cooling duct to petrol engine.Cooling fan in existing structure is all one-way shaft flow fan, and fan can only be at air-flow path of the monolateral formation of rotating shaft in rotating, and cooling effect is poor, thereby affects the working life of petrol engine; Simultaneously, traditional steam inlet pipe as shown in Figure 1, 2, steam inlet pipe body 1 is arranged on petrol engine by screw 2, steam inlet pipe body 1 is provided with steam inlet pipe inner port 3 and steam inlet pipe external port 4, in using process, because this steam inlet pipe inner port 3 directly contacts with air-fuel mixture chamber, steam inlet valve cuts out negative pressure in rear mixing chamber and disappears, make mixed gas be very easy to regurgitate from external port 4 and overflow from this steam inlet pipe inner port 3, thereby reduced fuel utilization ratio, increase petrol engine discharge amount of exhaust gas, and reduced the working efficiency of petrol engine.
Model utility content
The technical problems to be solved in the utility model is to provide a kind ofly can avoid defect of the prior art, makes mixed gas be difficult for a kind of air-cooled two-stroke gasoline engine of outwards regurgitating at steam inlet pipe inner port place.
For addressing the above problem, a kind of air-cooled two-stroke gasoline engine of the present utility model, comprise cylinder body assembly, left and right crankcase body, crankshaft rod assembly, igniter, steam inlet pipe and cooling fan, cooling fan is arranged in the rotating shaft of bent axle and is driven to rotate along with the rotation of rotating shaft, thereby makes cooling air to clutch, petrol engine, carry out cooling by the cooling duct arranging; Described steam inlet pipe, comprises steam inlet pipe body, and described steam inlet pipe body is provided with steam inlet pipe inner port and steam inlet pipe external port; In described steam inlet pipe body, also cover has honeycomb duct, this honeycomb duct to extend in steam inlet pipe body and leans out steam inlet pipe inner port.
Described steam inlet pipe body is arranged on mounting plate, is provided with for described steam inlet pipe being fixed on to the screw on petrol engine by screw on mounting plate.
Described steam inlet pipe body, honeycomb duct, the two and mounting plate are obliquely installed.
Described cooling fan is Double-way axial flow fan; Meanwhile, described clutch cooling duct is two with the corresponding setting of this Double-way axial flow fan.
Air-cooled two-stroke gasoline engine of the present utility model, by changing the structure of steam inlet pipe, in steam inlet pipe body, be arranged with honeycomb duct, can avoid the phenomenon that gas mixture is regurgitated at steam inlet pipe to occur, thereby gasoline engine fuel utilization ratio is improved, avoid fuel oil waste, and then improve the utilization efficiency of petrol engine; By changing the structure of cooling fan, one-way shaft flow fan of the prior art is replaced by Double-way axial flow fan, can effectively improve cooling air flow, at left crankcase clutch installation direction, two cooling ducts are set simultaneously, when Double-way axial flow fan is rotated, air-flow carries out cooling by two cooling ducts to clutch, thereby reach clutch and the better cooling effect of petrol engine, the working life that can effectively improve clutch and petrol engine.
Accompanying drawing explanation
Fig. 1 is the structural representation of steam inlet pipe in prior art;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the structural representation of steam inlet pipe in the utility model;
Fig. 4 be in Fig. 3 B-B to sectional view;
Fig. 5 is the perspective view of the air-cooled two-stroke gasoline engine of the utility model;
Fig. 6 is another angle perspective view of the air-cooled two-stroke gasoline engine of the utility model.
Embodiment
In order to make those skilled in the art person understand better technical solutions of the utility model, below in conjunction with drawings and embodiments, the utility model is described in further detail.
As shown in the figure, a kind of air-cooled two-stroke gasoline engine of the present utility model, comprise cylinder body assembly 17, left crankcase 11, right crankcase 12, crankshaft rod assembly 16, igniter 13, steam inlet pipe 10 and cooling fan 14, on cylinder body assembly 17, be provided with spark plug 18.
Described cooling fan 14 is arranged on the rotating shaft (right crankcase end) of bent axle and goes up and be driven to rotate along with the rotation of rotating shaft, thereby makes cooling air pass through the cooling duct 15 axially arranging.
Described cooling fan 14 is Double-way axial flow fan, and when rotating shaft is rotated, this Double-way axial flow fan can produce the pump gas effect of axial both direction; Simultaneously, described cooling duct 15 is two with the corresponding setting of this Double-way axial flow fan, when Double-way axial flow fan is rotated, air-flow carries out cooling by two cooling ducts to clutch (being arranged in the rotating shaft of left crankcase end bent axle), thereby reach clutch and the better cooling effect of petrol engine, the working life that can effectively improve petrol engine.
Described steam inlet pipe 10, comprises steam inlet pipe body 1, and described steam inlet pipe body 1 is provided with steam inlet pipe inner port 3 and steam inlet pipe external port 4.
In described steam inlet pipe body 1, also cover has honeycomb duct 5, and this honeycomb duct 5 is in the interior extension of steam inlet pipe body 1 and lean out steam inlet pipe inner port 3.
Described steam inlet pipe body 1 is arranged on mounting plate 6, is provided with for described steam inlet pipe being fixed on to the screw 2 on petrol engine by screw on mounting plate 6.
Described steam inlet pipe body, honeycomb duct, the two and mounting plate are the setting of inclination several angle.
Air-cooled two-stroke gasoline engine of the present utility model by changing the structure of steam inlet pipe, is arranged with honeycomb duct in steam inlet pipe body, its role is to: reduce steam inlet pipe inner port 3 and air-fuel mixture chamber area of contact 1.; 2. because resisting mixed gas, honeycomb duct guide functions regurgitates pressure.Thereby can avoid the phenomenon that gas mixture is regurgitated at steam inlet pipe to occur, thereby gasoline engine fuel utilization ratio is improved, avoid fuel oil waste, and then improve the utilization efficiency of petrol engine.
Claims (4)
1. an air-cooled two-stroke gasoline engine, it is characterized in that: comprise cylinder body assembly, left and right crankcase body, crankshaft rod assembly, piston, igniter, steam inlet pipe and Double-way axial flow cooling fan, cooling fan is arranged in the rotating shaft of bent axle and is driven to rotate along with the rotation of rotating shaft, thereby it is cooling that the logical cooling duct of cooling air is carried out petrol engine, and two clutch cooling ducts are set to clutch, carry out cooling; Described steam inlet pipe, comprises steam inlet pipe body, and described steam inlet pipe body is provided with steam inlet pipe inner port and steam inlet pipe external port; In described steam inlet pipe body, also cover has honeycomb duct, this honeycomb duct to extend in steam inlet pipe body and leans out steam inlet pipe inner port.
2. air-cooled two-stroke gasoline engine as claimed in claim 1, is characterized in that: described steam inlet pipe body is arranged on mounting plate, is provided with for described steam inlet pipe being fixed on to the screw on petrol engine by screw on mounting plate.
3. air-cooled two-stroke gasoline engine as claimed in claim 2, is characterized in that: described steam inlet pipe body, honeycomb duct, the two and mounting plate are obliquely installed.
4. air-cooled two-stroke gasoline engine as claimed in claim 1, is characterized in that: described cooling fan is Double-way axial flow fan; Meanwhile, described clutch cooling duct is two with the corresponding setting of this Double-way axial flow fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731481.4U CN203547877U (en) | 2013-11-18 | 2013-11-18 | Air cooling two-stroke gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731481.4U CN203547877U (en) | 2013-11-18 | 2013-11-18 | Air cooling two-stroke gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547877U true CN203547877U (en) | 2014-04-16 |
Family
ID=50466006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320731481.4U Expired - Lifetime CN203547877U (en) | 2013-11-18 | 2013-11-18 | Air cooling two-stroke gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221230A (en) * | 2015-11-04 | 2016-01-06 | 重庆永发工业有限公司 | The snowmobile double cylinder wind cooling motor of good heat dissipation effect |
-
2013
- 2013-11-18 CN CN201320731481.4U patent/CN203547877U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221230A (en) * | 2015-11-04 | 2016-01-06 | 重庆永发工业有限公司 | The snowmobile double cylinder wind cooling motor of good heat dissipation effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |