CN2258539Y - Fully closed piston ring unit - Google Patents
Fully closed piston ring unit Download PDFInfo
- Publication number
- CN2258539Y CN2258539Y CN 96202381 CN96202381U CN2258539Y CN 2258539 Y CN2258539 Y CN 2258539Y CN 96202381 CN96202381 CN 96202381 CN 96202381 U CN96202381 U CN 96202381U CN 2258539 Y CN2258539 Y CN 2258539Y
- Authority
- CN
- China
- Prior art keywords
- ring
- piston
- utility
- model
- oil
- 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
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a fully closed piston ring unit. The utility model is characterized in that a piston is provided with a gas ring groove (1), more than one gas ring and oil ring are combined into a ring groove (2), sealing rings in the ring groove (2) are provided with an inner ring (5), two outer rings (3, 4), and an oil ring sealing ring (6), and openings of four sealing rings are respectively staggered. The utility model can solve the problem of gluing, can also better seal gas. The utility model causes the pressure in the cylinder to retain always the optimum state, thereby, the problem of starting difficulty can be solved, the friction force between the piston ring and the cylinder wall can be decreased, the service lives of the piston ring and a cylinder sleeve can be prolonged, and the cost is low.
Description
The utility model relates to internal-combustion engine parts in addition, specifically a kind of completely closed piston ring group.
The existing piston ring generally is three road compression rings, one oil ring, and a groove one ring type.Encircle an opening together, form gas leakage easily, service time one is long, and attrition value increases, and causes in-cylinder pressure to reduce, and starting difficulty is had to take the suction tude igniting sometimes or added a liang machine oil and could start.The patent No. is that 86204257 Chinese utility model patent discloses " a kind of totally enclosed type piston ring group ", and its structure is that inside and outside ring adds bezel ring,, and locatees with pin.This structure does not still solve the gas leakage problem of ring opening, has established the bezel ring, annular groove on the piston newly one, has increased the friction of bezel ring, to inboard wall of cylinder liner, though prolonged the working life of piston ring, has reduced the working life of cylinder sleeve; Employing pin location has increased manufacture difficulty.In addition, a groove polycycle, zero-clearance formula, reach the formula of connecing etc. and all be confined to transform compression ring, and piston gas ring partly temperature is higher, cause gummed easily, thereby cause scuffing of cylinder bore and lose envelope gas ability.
The purpose of this utility model provides a kind of can preventing effectively and leaks gas, and leakage of oil prolongs the piston completely closed piston ring group in working life.
The purpose of this utility model is achieved in that according to gas loss more little, the principle that in-cylinder pressure is big more, and consider the gummed problem, second road, the 3rd road compression ring and the oil ring of the piston of one oil ring of existing three road compression rings are placed in the same annular groove, remove long ring in the oil ring, ring in setting up together, make it to become the annular groove (2) that has one compression ring and twice compression ring and oil ring to be merged into, seal ring in the annular groove (2) has the piston ring group of interior ring, two outer shrouds and oil ring seal ring, and the opening of four seal rings staggers.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 partly cuts open figure for master of the present utility model looks
Fig. 2 is an A-A sectional view of the present utility model
The utility model is that second road, the 3rd road compression ring and the oil ring with the piston of one oil ring of existing three road compression rings places in the same annular groove, remove long ring in the oil ring, ring (interior ring washes out oil hole at the piston machine oil-hole location) in setting up together, make it to become as shown in the figure compression ring 1 arranged one, one annular groove 2, the piston ring group of ring 5, two outer shrouds 3,4 and oil ring seal ring 6 in seal ring in the annular groove 2 has, the opening of four seal rings staggers 90 °.Specifically add man-hour, piston ring adopts the right angle mouth, must chamfering, and constant substantially on processing technology like this, promptly improved engine power, reduced expense again.
Adopt structure of the present utility model, can make compression ring help the oil ring oil sealing, oil ring nation helps compression ring envelope gas, both solved the gummed problem, can seal gas preferably again, make in-cylinder pressure remain at the optimum state, thereby solve the problem of starting difficulty, and reduced the frictional force of piston ring and institute's cylinder wall, prolonged the working life of piston ring and cylinder sleeve.
Claims (2)
1, a kind of completely closed piston ring group, it is characterized in that piston has one compression (1), the annular groove of merging into oil ring by above compression ring together (2), seal ring in the annular groove (2) has interior ring (5), two outer shrouds (3,4) and oil ring seal ring (6), and the opening of four seal rings staggers respectively.
2, completely closed piston ring group according to claim 1 is characterized in that four seal ring openings respectively stagger 90 ° in the oil ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202381 CN2258539Y (en) | 1996-01-29 | 1996-01-29 | Fully closed piston ring unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202381 CN2258539Y (en) | 1996-01-29 | 1996-01-29 | Fully closed piston ring unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2258539Y true CN2258539Y (en) | 1997-07-30 |
Family
ID=33888357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96202381 Expired - Fee Related CN2258539Y (en) | 1996-01-29 | 1996-01-29 | Fully closed piston ring unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2258539Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005292A (en) * | 2010-10-18 | 2011-04-06 | 北京瑞奇恩电器设备有限公司 | Antirust open type current transformer |
| CN111594337A (en) * | 2020-06-22 | 2020-08-28 | 东莞宏大动力科技有限公司 | Seamless sealing piston |
-
1996
- 1996-01-29 CN CN 96202381 patent/CN2258539Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005292A (en) * | 2010-10-18 | 2011-04-06 | 北京瑞奇恩电器设备有限公司 | Antirust open type current transformer |
| CN102005292B (en) * | 2010-10-18 | 2012-09-26 | 北京瑞奇恩互感器设备有限公司 | Antirust open type current transformer |
| CN111594337A (en) * | 2020-06-22 | 2020-08-28 | 东莞宏大动力科技有限公司 | Seamless sealing piston |
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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 |