CN203394650U - Improved piston ring for internal combustion engine - Google Patents
Improved piston ring for internal combustion engine Download PDFInfo
- Publication number
- CN203394650U CN203394650U CN201320500188.7U CN201320500188U CN203394650U CN 203394650 U CN203394650 U CN 203394650U CN 201320500188 U CN201320500188 U CN 201320500188U CN 203394650 U CN203394650 U CN 203394650U
- Authority
- CN
- China
- Prior art keywords
- piston ring
- main body
- improved
- combustion engines
- groove
- 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 an improved piston ring for an internal combustion engine. The improved piston ring comprises a piston ring man body, wherein the piston ring main body is arranged in a piston ring groove; the piston ring main body is provided with a plurality of groups of direct through grooves symmetrically along the inner circumferential face; a plurality of guide blocks are formed on the inner surface of the piston ring man body; a hard covering film is arranged on the surface of the piston ring man body; a sliding surface is formed outside the hard covering film; a concave part is formed on the sliding surface along the outer circumferential face; a wear-resisting layer is coated inside the concave part. According to the improved piston ring for the internal combustion engine, the hard covering film is arranged on the surface of the piston ring man body so that the wear resistance is relatively high; one sliding surface with the concave part is formed outside the hard covering film; the sliding surface is contacted with an air cylinder for a long time, and the sealing performance is good; the plurality of guide blocks are formed on the inner surface of the piston ring man body so as to have the supporting effect.
Description
Technical field
The utility model relates to a kind of piston ring, relates in particular to a kind of improved piston ring for combustion engines.
Background technique
Piston ring is for down, to enter the metal ring of piston groove inside, and piston ring is installed on piston, for realizing the level and smooth to-and-fro motion of piston in cylinder.Piston in internal-combustion engine, working pressure ring and oil ring are as piston ring conventionally, and oil ring can seal high-temperature combustion gas; Pressure ring plays guided bearing effect.Piston ring is often used as two pressure ring and an oil ring is used in combination, and this modular construction not only wastes raw material, and makes whole piston ring volume become large.Therefore, need to provide a kind of new technological scheme to solve the problems referred to above.
Model utility content
The purpose of this utility model is to provide a kind of improved piston ring for combustion engines that simultaneously possesses sealing and leading role.
The technical solution adopted in the utility model is:
Improved piston ring for combustion engines, comprise a piston ring main body, this piston ring main body is placed in piston ring groove, described piston ring main body has many group direct through groove along inner peripheral surface symmetry, the internal surface of described piston ring main body is formed with a plurality of guide pads, and described piston ring body surfaces is provided with one deck hard coat, the outer slip surface that forms of described hard coat, described slip surface forms a recess along outer peripheral surface, is coated with a wearing layer in described recess.
Described hard coat is chromium plating rete.
The shape of cross section of described direct through groove is square.
Described wearing layer is manganese-titanium layer.
The number of described direct through groove is 2 groups.
The beneficial effects of the utility model: the utility model adopts piston ring body surfaces to be provided with one deck hard coat, wear resistance is higher, the outer formation one of hard coat has the slip surface of recess, slip surface and cylinder Long contact time, sealing is better, the internal surface of piston ring main body is formed with a plurality of guide pads, plays supporting role.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, piston ring main body, 2, piston ring groove, 3, direct through groove, 4, guide pad, 5, hard coat, 6, slip surface, 7, recess, 8, wearing layer, 9, cylinder, 10, piston.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, improved piston ring for combustion engines of the present utility model, comprise a piston ring main body 1, this piston ring main body 1 is placed in piston ring groove 2, it is square direct through groove 3 (Figure 1 shows that 2 groups) that piston ring main body 1 has shape of cross section along inner peripheral surface symmetry, the internal surface of piston ring main body 1 is formed with a plurality of guide pads 4, play guided bearing effect, piston ring main body 1 surface is provided with one deck hard coat 5, hard coat 5 is chromium plating rete, outer formation one slip surface 6 of hard coat 5, when internal combustion engine, slip surface 6 contacts with cylinder 9, with assurance, high-temperature combustion gas is sealed, slip surface 6 forms a recess 7 along outer peripheral surface, in recess 7, be coated with a wearing layer 8, wearing layer 8 is manganese-titanium layer, the wear resistance of manganese-titanium is high.
Piston ring is installed on piston 10, during internal combustion engine, piston 10 is in the interior level and smooth to-and-fro motion of cylinder 9, slip surface 6 contacts with cylinder 9, because slip surface 6 has the high recess of a wear resistance 7, therefore make piston ring long-term work, wear extent is less, sealing is better, and the internal surface of piston ring main body 1 is formed with a plurality of guide pads 4, can play good guided bearing effect.
Claims (5)
1. improved piston ring for combustion engines, comprise a piston ring main body, this piston ring main body is placed in piston ring groove, it is characterized in that: described piston ring main body has many group direct through groove along inner peripheral surface symmetry, the internal surface of described piston ring main body is formed with a plurality of guide pads, and described piston ring body surfaces is provided with one deck hard coat, the outer slip surface that forms of described hard coat, described slip surface forms a recess along outer peripheral surface, is coated with a wearing layer in described recess.
2. improved piston ring for combustion engines according to claim 1, is characterized in that: described hard coat is chromium plating rete.
3. improved piston ring for combustion engines according to claim 1, is characterized in that: the shape of cross section of described direct through groove is square.
4. improved piston ring for combustion engines according to claim 1, is characterized in that: described wearing layer is manganese-titanium layer.
5. improved piston ring for combustion engines according to claim 1, is characterized in that: the number of described direct through groove is 2 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500188.7U CN203394650U (en) | 2013-08-06 | 2013-08-06 | Improved piston ring for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500188.7U CN203394650U (en) | 2013-08-06 | 2013-08-06 | Improved piston ring for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394650U true CN203394650U (en) | 2014-01-15 |
Family
ID=49906186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500188.7U Expired - Fee Related CN203394650U (en) | 2013-08-06 | 2013-08-06 | Improved piston ring for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394650U (en) |
-
2013
- 2013-08-06 CN CN201320500188.7U patent/CN203394650U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |