CN201025151Y - Piston - Google Patents
Piston Download PDFInfo
- Publication number
- CN201025151Y CN201025151Y CNU2007200071267U CN200720007126U CN201025151Y CN 201025151 Y CN201025151 Y CN 201025151Y CN U2007200071267 U CNU2007200071267 U CN U2007200071267U CN 200720007126 U CN200720007126 U CN 200720007126U CN 201025151 Y CN201025151 Y CN 201025151Y
- Authority
- CN
- China
- Prior art keywords
- piston
- skirt section
- oilhole
- ring groove
- piston ring
- 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 relates to a piston which comprises a piston ring groove, a pin hole and a sweep part; the piston ring groove is provided with a plurality of small oil holes or a plurality of small oil holes are arranged in the border part of the piston ring groove and the sweep part. The utility model is characterized in that the proper position of the sweep part is provided with at least an oil hole; and the oil hole is better to be a round, an oval or a track shape. The utility model can make up the disadvantages of the small oil hole, keep the lubricant and cooling of the sweep part in an ideal status, has a simple structure and deserves to be popularized.
Description
[technical field]
The utility model relates to piston, belongs to engine art.
[background technique]
The in-engine piston of traditional automobile, motorcycle, ship and engineering machinery etc., the piston ring groove that mainly comprises, pin-and-hole and skirt section, described piston ring groove is provided with some little oilholes, lubricated and the cooling in piston ring groove and skirt section when being used for piston and in cylinder, moving, because the diameter of little oilhole is usually less than 5mm, oil pump capacity is less, and long-term the use, machine oil is dirty easily to cause that little oilhole stops up, and the area in skirt section is relatively large, therefore far can not satisfy the needs of the lubricated and cooling in skirt section by the oil pump capacity of little oilhole.Time one is long, very easily causes the heavy wear and the distortion in skirt section, or take place piston and cylinder scuffing of cylinder bore, embrace phenomenons such as cylinder, thereby cause the lossy, expensive of piston, piston ring and cylinder utilization.
For addressing the above problem, must improve conventional piston, thereby remedy its deficiency lubricated and cooling.
[summary of the invention]
The purpose of this utility model, be to provide piston, on the skirt section of piston, be provided with some oilholes,, make the lubricated and cooling in skirt section reach more satisfactory state doing to replenish preferably on the piston ring groove and with the defective that the set little oilhole of the intersection in skirt section exists.
The utility model is achieved in that piston, piston ring groove that comprises and skirt section, be provided with some little oilholes on the described piston ring groove and with the intersection in skirt section, the cross section in described skirt section is an annular or an annular part, in a certain diametric(al) two pin-and-holes are set symmetrically along its circular crosssection, at the angle with described two pin-and-hole lines is that 75 ° position has two diameters, described two folded acute angles of diameter are 30 °, are equipped with more than one oilhole on the skirt section in two 30 ° of scopes that surrounded.
Said structure can further be specially: described oilhole is arranged symmetrically in the both sides of two pin-and-hole lines.
Wherein, the oilhole of above-mentioned both sides at two pin-and-hole lines is one of every side.
Described oilhole is circular or oval, and or be runway shape.
The utility model adopts above-mentioned structure, structure is in the past compared has following advantage: be provided with some oilholes on the skirt section of piston, can make the lubricated and cooling in skirt section reach more satisfactory state to doing to replenish preferably on the piston ring groove and with the defective that the set little oilhole of the intersection in skirt section exists; In addition, improved simple in structure, very easily operation increases cost hardly on the technology, is worthy to be popularized.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is the schematic layout pattern of the utility model oil-hole location.
Fig. 3 is another embodiment's of the utility model a structural representation.
[embodiment]
Seeing also shown in Figure 1ly, is an embodiment's of the utility model structural representation.The utility model piston 10, piston ring groove 1 that comprises and skirt section 2.Described piston ring groove 1 is provided with some little oilholes 11, mainly is the needs that satisfy the lubricated and cooling of piston ring groove 1, and in addition, piston ring groove 1 also is provided with some little oilholes 12 with the intersection in skirt section 2, mainly is the needs that satisfy the lubricated and cooling in skirt section 2.
Again in conjunction with shown in Figure 2, the a certain cross section in described skirt section 2 is an annular, in a certain diametric(al) two pin-and-holes 4 are set symmetrically along its circular crosssection, at the angle with described two pin-and-hole 4 line L is that 75 ° position has two diameter L1 and L2, two angles of described two diameter L1 and L2 are respectively 150 ° obtuse angle and 30 ° acute angle, in two the 30 ° of skirt section that is surrounded 2 scopes, be equipped with an oilhole 21 that area is bigger, or the slightly little oilhole 21 of more than one area, described oilhole 21 is arranged symmetrically in the both sides of two pin-and-hole 4 line L.
Again as shown in Figure 3, be another embodiment's of the utility model structural representation.Except that being shaped as the runway shape of oilhole 21, other is all identical with embodiment one.Our experiments show that, oilhole be shaped as circle, ellipse or runway shape the time, best results.
The utility model adds some oilholes in the appropriate location, skirt section, be to replenishing preferably on the piston ring groove and with one of the defective that the set little oilhole of the intersection in skirt section exists, thereby it is make the lubricated and cooling in skirt section reach more satisfactory state, and improved simple in structure.
Claims (4)
1. piston, piston ring groove that comprises and skirt section, be provided with some little oilholes on the described piston ring groove and with the intersection in skirt section, the cross section in described skirt section is an annular or an annular part, in a certain diametric(al) two pin-and-holes are set symmetrically along its circular crosssection, it is characterized in that: at the angle with described two pin-and-hole lines is that 75 ° position has two diameters, described two folded acute angles of diameter are 30 °, are equipped with more than one oilhole on the skirt section in two 30 ° of scopes that surrounded.
2. piston according to claim 1 is characterized in that: described oilhole is arranged symmetrically in the both sides of two pin-and-hole lines.
3. piston according to claim 2 is characterized in that: the oilhole in the both sides of two pin-and-hole lines is one of every side.
4. according to each described piston of claim 1 to 3, it is characterized in that: described oilhole is for circular or oval, and or be runway shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200071267U CN201025151Y (en) | 2007-05-22 | 2007-05-22 | Piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200071267U CN201025151Y (en) | 2007-05-22 | 2007-05-22 | Piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025151Y true CN201025151Y (en) | 2008-02-20 |
Family
ID=39099012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200071267U Expired - Fee Related CN201025151Y (en) | 2007-05-22 | 2007-05-22 | Piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025151Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103890362A (en) * | 2011-09-28 | 2014-06-25 | 马勒国际公司 | Piston for an internal combustion engine |
| CN104179590A (en) * | 2014-06-30 | 2014-12-03 | 泰州市优力克机械制造有限公司 | Wear-resistant piston |
| CN109620449A (en) * | 2018-12-28 | 2019-04-16 | 江苏盛泽医院 | Critical patient oral care visualizes disposable brush bar |
-
2007
- 2007-05-22 CN CNU2007200071267U patent/CN201025151Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103890362A (en) * | 2011-09-28 | 2014-06-25 | 马勒国际公司 | Piston for an internal combustion engine |
| CN104179590A (en) * | 2014-06-30 | 2014-12-03 | 泰州市优力克机械制造有限公司 | Wear-resistant piston |
| CN109620449A (en) * | 2018-12-28 | 2019-04-16 | 江苏盛泽医院 | Critical patient oral care visualizes disposable brush bar |
| CN109620449B (en) * | 2018-12-28 | 2021-02-05 | 江苏盛泽医院 | Critical patient's oral care is with visual disposable brush stick |
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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: 20080220 Termination date: 20100522 |