CN2320800Y - Piston ring group - Google Patents
Piston ring group Download PDFInfo
- Publication number
- CN2320800Y CN2320800Y CN 97213903 CN97213903U CN2320800Y CN 2320800 Y CN2320800 Y CN 2320800Y CN 97213903 CN97213903 CN 97213903 CN 97213903 U CN97213903 U CN 97213903U CN 2320800 Y CN2320800 Y CN 2320800Y
- Authority
- CN
- China
- Prior art keywords
- piston ring
- ring group
- working surface
- compressed flat
- flat 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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The utility model discloses a second compression ring of a piston ring group for a four-stroke gasoline engine. The basal body of the compression ring is made up of alloy spring steel or high chromium martensite type stainless steel material, the integral outer layer of the basal body is a nitride layer, or a chromium coating is arranged on the working surface of an outer circle, or not only nitriding is made on the integral outer layer, but also a chrome coating is coated on the working surface of the outer circle. The piston ring group has the advantages of easy producing, low cost, high utilization rate, favorable performance, and long service life; the utility model can adapt to the operating requirement of modern high performance engines.
Description
The utility model relates to a kind of second road compressed flat ring of petrol engine piston ring group, and this piston ring group is mainly used on the four-stroke petrol engine.
Current, motor just develops towards lightweight, high pressure, high speed direction, therefore strict more to the performance requirement of piston ring, not only to improve compliance, the sealing of ring, and to improve the wearability and the thermostability of ring, also require to reduce the axial height of piston ring, the inertial force and the power of trembling when turning round to reduce high engine speeds.Four-stroke petrol engine piston ring group is made up of three road rings, its second road ring is a compressed flat ring, this second road compressed flat ring at home and abroad all is at present to adopt cast iron to make, the manufacture cost height of this compressed flat ring, manufacture cycle is long, the moulds of industrial equipment complexity, and its intensity and hardness are all lower, working life is short, also phenomenon of rupture can occur sometimes.
Task of the present utility model provides a kind of piston ring group second road compressed flat ring of new structure, the manufacturing process of this compressed flat ring is simple, with low cost, the utilization ratio height of material, the performance of piston ring has clear improvement, long service life, and can adapt to the job requirement of modern high performance motor.
Task of the present utility model is to finish in such a way, the second road compressed flat ring of this piston ring group is to adopt alloy spring steel or high martensitic chromium type stainless steel as matrix, its outer whole nitrogenize, plate a chromium layer on the perhaps round outside working surface, or both in the whole nitrogenize of skin, plating one chromium layer on the round outside again simultaneously working surface.
Below in conjunction with accompanying drawing the utility model is further elaborated.
Fig. 1 is the second road compressed flat ring plan view of the present utility model.
Fig. 2 is a compressed flat ring cross-sectional view of the present utility model.
Fig. 3 is another structural drawing of compressed flat ring of the present utility model.
Fig. 4 is the another structural drawing of compressed flat ring of the present utility model.
As can be seen from Figure 1, this four-stroke petrol engine piston ring group two road compressed flat rings select for use alloy spring steel or high martensitic chromium type stainless steel to make, it is through being rolled into rectangular wire with Round Steel Wire, take continuous heat, scratch circle, opening, heat-setting process, and by cylindrical spread out mill, end face mill, nitriding treatment or the chromium plating of cylindrical working surface, carry out fine finishing at last, thereby obtain the piston ring group second road compressed flat ring of this new structure.
Fig. 2 is a kind of structure sectional view of this compressed flat ring, and the matrix of this compressed flat ring (1) is that alloy spring steel or high martensitic chromium type stainless steel material are made, and its outer whole (2) are nitride layers.The matrix of certain this compressed flat ring (1) also can be selected Bearing Steel or alloy tool steel manufacturing for use.
Fig. 3 then is the another kind of structural drawing of this compressed flat ring, its matrix (1) remains and adopts alloy spring steel or high martensitic chromium type stainless steel to make, but having only its cylindrical working surface (3) is a chromium coating, and outer whole (2) do not carry out nitriding treatment.
Fig. 4 is another structural drawing of this compressed flat ring, and on this matrix of being made by alloy spring steel or high martensitic chromium type stainless steel material (1), not only its outer whole (2) are nitride layers, and its cylindrical working surface (3) also is a chromium coating.
The piston ring group of this four-stroke gasoline engine, its Young's modulus can be greater than 200GPa, the hardness of cylindrical working surface reaches more than the 800HV, the elastic force retention coefficient is greater than 90%, and surpass 6000 hours working life, and it also has in light weight, inertia is little in the speed up motor, the anti-good characteristics of flutter performance, and its low cost of manufacture, the frock clamping of use is fairly simple.
Claims (2)
1, a kind of second road compressed flat ring of piston ring group, it is characterized in that: the matrix of this compressed flat ring (1) is that alloy spring steel or high martensitic chromium type stainless steel material are made, and its outer whole (2) are nitride layers or at the cylindrical working surface (3) of matrix (1) chromium coating are arranged.
2, press the compressed flat ring of claim 1 defined, it is characterized in that: on this matrix of making by alloy spring steel or high martensitic chromium type stainless steel material (1), not only outer whole (2) are nitride layers, and on the round outside working surface (3) chromium coating are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97213903 CN2320800Y (en) | 1997-03-31 | 1997-03-31 | Piston ring group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97213903 CN2320800Y (en) | 1997-03-31 | 1997-03-31 | Piston ring group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2320800Y true CN2320800Y (en) | 1999-05-26 |
Family
ID=33931529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97213903 Expired - Fee Related CN2320800Y (en) | 1997-03-31 | 1997-03-31 | Piston ring group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2320800Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332056A (en) * | 2019-06-18 | 2019-10-15 | 安庆帝伯格茨活塞环有限公司 | A kind of low oil consumption engine piston ring group of low friction and mechanism |
-
1997
- 1997-03-31 CN CN 97213903 patent/CN2320800Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332056A (en) * | 2019-06-18 | 2019-10-15 | 安庆帝伯格茨活塞环有限公司 | A kind of low oil consumption engine piston ring group of low friction and mechanism |
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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 | ||
| MM1K | Cease caused by non payment of annual fee |