CN201047314Y - Four strokes piston - Google Patents
Four strokes piston Download PDFInfo
- Publication number
- CN201047314Y CN201047314Y CNU2007200070423U CN200720007042U CN201047314Y CN 201047314 Y CN201047314 Y CN 201047314Y CN U2007200070423 U CNU2007200070423 U CN U2007200070423U CN 200720007042 U CN200720007042 U CN 200720007042U CN 201047314 Y CN201047314 Y CN 201047314Y
- Authority
- CN
- China
- Prior art keywords
- piston
- stroke piston
- stroke
- oilhole
- utility
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a four-stroke piston, comprising a pin hole and a small oil hole. The piston is characterized in that the skirt part of the four-stroke piston forming an angle from 35 DEG to 75 DEG with the central line of a pin hole of the four-stroke piston is provided with a round or elliptic large oil hole, the diameter of which is larger than that of a small oil hole. The utility model overcomes the defect of the piston burn out caused by the friction between the outer surface of the piston and the cylinder wall when the four-stroke piston is working caused by the blocking of the small oil hole in the four-stroke piston by the oil contamination in the engine.
Description
Technical field
The utility model relates to the four-stroke piston.
Background technique
The four-stroke piston of existing motor during work, normally leads to machine oil between outer surface of piston and the cylinder wall by several the little oilholes on the piston and is lubricated, and friction is overheated between outer surface of piston and the cylinder wall when preventing the four-stroke pistons work.But after four-stroke piston service time of motor is long, can produce many greasy dirts in the body, these greasy dirts can stop up the little oilhole on the four-stroke piston, when causing the four-stroke pistons work between outer surface of piston and the cylinder wall friction overheated and burn out piston.If can design a kind of four-stroke piston, it can prevent in the body that greasy dirt stops up the little oilhole on the four-stroke piston and when causing the four-stroke pistons work between outer surface of piston and the cylinder wall friction overheated and burn out piston, then this four-stroke piston must be subjected to numerous users' welcome.
Summary of the invention
The purpose of this utility model will design a kind of four-stroke piston exactly, it can prevent in the engine body that greasy dirt stops up the little oilhole on the four-stroke piston and when causing the four-stroke pistons work between outer surface of piston and the cylinder wall friction overheated and burn out piston.
The utility model is existing four-stroke piston structure to be transformed realize the purpose of this utility model: four-stroke piston of the present utility model, also include the little oilhole on pin-and-hole and the four-stroke piston, it is characterized in that: circular big oilhole or the oval big oilhole of diameter greater than little oilhole is set at the position, four-stroke piston skirt that becomes 35 degree～75 degree angles with four-stroke piston pin hole center line.
The utility model is compared with existing four-stroke piston, four-stroke piston of the present utility model it overcome that greasy dirt in the engine body stops up the little oilhole on the four-stroke piston and when causing the four-stroke pistons work between outer surface of piston and the cylinder wall friction overheated and burn out the shortcoming of piston, the Security of four-stroke pistons work improves greatly.
Description of drawings
Fig. 1 is the schematic perspective view of a kind of concrete structure of the utility model.
Fig. 2 is the schematic top plan view of Fig. 1 structure.
Fig. 3 is the schematic side view of Fig. 1 structure.
Fig. 4 is the front-view schematic diagram of Fig. 1 structure.
Fig. 5 is a schematic representation of establishing big oilhole and the angled angle α of pin-and-hole center line on the skirt section of piston in Fig. 1,2 structures.
Embodiment
Specific embodiment below in conjunction with accompanying drawing further specifies the utility model.(but not being) to restriction of the present utility model.
Shown in Fig. 1～5, be the schematic representation of a kind of specific embodiment of the present utility model.As seen from the figure, described four-stroke piston of the present utility model, also include the little oilhole 2 on pin-and-hole 1 and the four-stroke piston, it is characterized in that: be provided with the oval big oilhole 5 of diameter greater than little oilhole with 4 positions, four-stroke piston skirt of 3 one-tenth angle α of pin-and-hole center line of four-stroke piston.
The angular range of described angle α is between 35 degree～75 degree.
The angle preferred range of described angle α is between 50 degree～65 degree.
The circular big oilhole that the position, skirt section is provided with or the quantity of oval big oilhole are 2～4.For example, oval big oilhole 5 quantity are 4 in the present embodiment.
Claims (3)
1. four-stroke piston, include the little oilhole on pin-and-hole and the four-stroke piston, it is characterized in that: become the position, four-stroke piston skirt of 35 degree～75 degree angles that circular big oilhole or the oval big oilhole of diameter greater than little oilhole is set at center line with the four-stroke piston pin hole.
2. four-stroke piston according to claim 1, the angle preferred range that it is characterized in that described angle are between 50 degree～65 degree.
3. four-stroke piston according to claim 1 is characterized in that circular big oilhole or the oval quantity of oilhole greatly that position, described four-stroke piston skirt is provided with are 2～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200070423U CN201047314Y (en) | 2007-05-14 | 2007-05-14 | Four strokes piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200070423U CN201047314Y (en) | 2007-05-14 | 2007-05-14 | Four strokes piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047314Y true CN201047314Y (en) | 2008-04-16 |
Family
ID=39299895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200070423U Expired - Fee Related CN201047314Y (en) | 2007-05-14 | 2007-05-14 | Four strokes piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047314Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604915A (en) * | 2016-02-19 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston, compressor provided with same and machining method of piston |
-
2007
- 2007-05-14 CN CNU2007200070423U patent/CN201047314Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604915A (en) * | 2016-02-19 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston, compressor provided with same and machining method of piston |
| CN105604915B (en) * | 2016-02-19 | 2017-10-31 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of processing method of piston, the compressor with it and piston |
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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: 20080416 Termination date: 20100514 |