CN2291536Y - Piston-ring sealing device - Google Patents
Piston-ring sealing device Download PDFInfo
- Publication number
- CN2291536Y CN2291536Y CN 97223757 CN97223757U CN2291536Y CN 2291536 Y CN2291536 Y CN 2291536Y CN 97223757 CN97223757 CN 97223757 CN 97223757 U CN97223757 U CN 97223757U CN 2291536 Y CN2291536 Y CN 2291536Y
- Authority
- CN
- China
- Prior art keywords
- piston
- utility
- model
- piston ring
- 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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- Compressor (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston-ring sealing device. The utility model has the structure that two piston rings are arranged in a piston ring groove, openings of the piston rings are aimed at a positioning pin which is radially arranged in the piston ring groove to position, and the openings of the piston rings are staggered for certain angle in the circumferential direction. In this way, when the machine works, the utility model can prevent gas in a high pressure chamber of a cylinder from leaking into a low pressure chamber from the openings of the piston rings, can ensure sealing, and can extend the service life of the piston ring. The utility model is suitable for internal combustion engines, air compressors and relative devices which are sealed by the pistons.
Description
The utility model relates to a kind of piston ring packing device.
A piston packing ring only is housed in the prior art piston ring groove, and this seal ring is a trip ring.In application process, the outer rim of piston packing ring is moved repeatedly with respect to cylinder body and is made the outer rim wearing and tearing, becomes big along with the increase of wearing and tearing makes the opening of ring, and the gas in cylinder body inner high voltage chamber will leak into low-pressure cavity from opening, causes the working efficiency of machine to reduce thus.May wear to a degree and must change piston packing ring.
The purpose of this utility model provides a kind of piston ring packing device of new structure, makes the gas in cylinder inner high voltage chamber be difficult for leaking into low-pressure cavity, thereby improves the working efficiency of machine, prolongs the working life of ring.
The purpose of this utility model is achieved in that increases by one piston ring in piston ring groove, be exactly the twice piston ring is installed in an annular groove, and the opening that makes two rings is by the locating stud location and the several angle that staggers on the Zhou Fangxiang of garden.Pressurized gas are difficult for leaking like this, both can guarantee sealing.
The utility model only needs to set up one ring and two locating studs in former annular groove, so structure is simple especially; Because the variation of structure has improved sealing, the working efficiency of machine is improved, the life-span of ring is elongated.Be applicable to by on the equipment such as the internal combustion engine of piston ring packing, air compressor.
Elaborate below in conjunction with accompanying drawing.
Fig. 1 is a positive view of the present utility model.
Fig. 2 is an A-A sectional drawing of the present utility model.
In Fig. 1, piston ring 2 is pressed desired location and is arrived in the piston ring groove of piston 3 down respectively, puts into cylinder sleeve 1 then, and the outer garden face of piston ring 2 closely contacts with cylinder sleeve 1 aperture surface, seals during work.
In Fig. 2, earlier spring 5 is put into positioning pin hole on the piston 3, put into locating stud 4 then, then be lowered to piston ring 2, and make the opening aligning locating stud 4 of piston ring 2 so that its location.
Claims (3)
1, a kind of piston ring packing device, this device mainly is made up of piston (3), piston ring (2), spring (5), locating stud (4); It is characterized in that in the annular groove of piston (3) installing twice piston rings (2), two openings of twice piston ring (2) several angle that on the Zhou Fangxiang of garden, staggers, and by locating stud (4) location.
2, device according to claim 1 is characterized in that locating stud (4) is arranged in the annular groove and places perpendicular to piston (3) axis.
3, device according to claim 1 is characterized in that piston ring (2) opening is designed to interior nick shaped, and the positioning part of locating stud (4) is a triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223757 CN2291536Y (en) | 1997-06-03 | 1997-06-03 | Piston-ring sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223757 CN2291536Y (en) | 1997-06-03 | 1997-06-03 | Piston-ring sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2291536Y true CN2291536Y (en) | 1998-09-16 |
Family
ID=33938357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97223757 Expired - Fee Related CN2291536Y (en) | 1997-06-03 | 1997-06-03 | Piston-ring sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2291536Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455453A (en) * | 2014-12-10 | 2015-03-25 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Sealing structure |
-
1997
- 1997-06-03 CN CN 97223757 patent/CN2291536Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455453A (en) * | 2014-12-10 | 2015-03-25 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Sealing structure |
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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 |