CN201080856Y - Gasoline engine - Google Patents
Gasoline engine Download PDFInfo
- Publication number
- CN201080856Y CN201080856Y CNU2007200461569U CN200720046156U CN201080856Y CN 201080856 Y CN201080856 Y CN 201080856Y CN U2007200461569 U CNU2007200461569 U CN U2007200461569U CN 200720046156 U CN200720046156 U CN 200720046156U CN 201080856 Y CN201080856 Y CN 201080856Y
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- CN
- China
- Prior art keywords
- cylinder sleeve
- piston
- utility
- model
- petrol engine
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a gasoline engine, which comprises a cylinder sleeve, a piston, a crankshaft and a carburetor, the aperture of the cylinder sleeve is 80mm, the piston is matched with the cylinder, the rotation radius of the crankshaft is 29.5mm, the flow of the main metering hole of the carburetor is increased to the 10 percent of position. Compared with the prior similar products, the utility model has more power under the condition of same volume and weight.
Description
Technical field
The utility model relates to a kind of small utility gasoline engine.
Background technique
At present, the power quality of domestic small utility gasoline engine is lower, is 270ml as discharge capacity, and cylinder diameter is 77mm, and stroke is the four-stroke gasoline engine of 58mm, its peak output generally about 5.9KW, the oil consumption height.Particularly under the situation of the same volume of petrol engine, require petrol engine to send bigger power, the power of domestic small utility gasoline engine is compared with the power of the small utility gasoline engine of developed country, differs a lot of.Therefore competitive ability is not strong in the international market.
The model utility content
The technical problems to be solved in the utility model provides a kind of petrol engine, it under the constant situation of external form and total quality, the power height that sends.
The technological scheme that its technical problem that solves the utility model adopts is: it comprises casing, cylinder sleeve, piston, bent axle, Carburetor, the compression height of casing is 155.55mm, the aperture of cylinder sleeve is 80mm, piston and cylinder sleeve match, the crank up radius is 29.5mm, and the carbureter main jet flow is increased to 10% position.
Because in the such scheme, only make the high lengthening of compression of casing, the cylinder sleeve internal diameter strengthens, the crank up radius increases 0.5mm, transfer big carbureter main jet and other size does not become, therefore under the situation that petrol engine is constant in external dimension, total quality is constant, the power that petrol engine sent is improved.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is the structural representation of a kind of petrol engine of the utility model.
1. steam casing covers among the figure, 2. piston, 3. bent axle, 4 casings.
Embodiment
In the accompanying drawing, a kind of petrol engine of the utility model is to improve to form on the basis of existing PW270 type petrol engine.The cylinder sleeve aperture of former petrol engine is 77mm, and the internal diameter of present cylinder sleeve 1 is 80mm, the enlarged diameter 3mm of piston 2.Former casing compression height is 155mm, and the compression height of present casing 4 is 155.55mm, makes original discharge capacity bring up to 296ml from 270ml like this.Carbureter main jet is increased to 10% position, and is not shown in the figures.By above-mentioned improved petrol engine, complete machine power is brought up to 12.5% and is reached 6.7KW.In above-mentioned improvement, the aperture of cylinder sleeve 1 is than the big 3mm of existing cylinder sleeve, the compression high growth of casing 4 0.55mm, other size constancy, so overall weight reduces the enlarged diameter 3mm of piston 2 to some extent, its weight increases to some extent, the weight that the weight that piston 2 increases reduces less than casing 4, bent axle 3 is because the turning radius increases, and its weight increases to some extent.In sum, the petrol engine after the improvement, under the situation that overall weight and volume do not increase, the power that petrol engine sent is improved.
Claims (1)
1. petrol engine, it comprises casing, cylinder sleeve, piston, bent axle, Carburetor, it is characterized in that: the compression of casing is high to be 155.55mm, the aperture of cylinder sleeve is 80mm, piston and cylinder sleeve match, and the crank up radius is 29.5mm, and the carbureter main jet flow is increased to 10% position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200461569U CN201080856Y (en) | 2007-09-27 | 2007-09-27 | Gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200461569U CN201080856Y (en) | 2007-09-27 | 2007-09-27 | Gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080856Y true CN201080856Y (en) | 2008-07-02 |
Family
ID=39614529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200461569U Expired - Fee Related CN201080856Y (en) | 2007-09-27 | 2007-09-27 | Gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080856Y (en) |
-
2007
- 2007-09-27 CN CNU2007200461569U patent/CN201080856Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |