CN2723700Y - Combined piston ring - Google Patents
Combined piston ring Download PDFInfo
- Publication number
- CN2723700Y CN2723700Y CN 200420040631 CN200420040631U CN2723700Y CN 2723700 Y CN2723700 Y CN 2723700Y CN 200420040631 CN200420040631 CN 200420040631 CN 200420040631 U CN200420040631 U CN 200420040631U CN 2723700 Y CN2723700 Y CN 2723700Y
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- China
- Prior art keywords
- piston ring
- ring
- piston
- sub
- main
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a combined piston ring, comprising a main piston ring and an inner auxiliary piston ring. The inner auxiliary piston ring is positioned in the main piston ring, and the inner auxiliary piston ring blocks the opening of the main piston ring from the interior of the main piston ring. As the inner auxiliary piston ring blocks the opening of the main piston ring from the interior of the main piston ring, the leakage of the gas from the interior of the piston ring groove of the piston is effectively reduced, the possibility of the leakage of the effective gas of the piston ring from the opening of the piston ring and the interior of the piston ring groove of the piston is completely solved, the work efficiency of the internal combustion engine is greatly improved, and the service life of the piston ring is increased.
Description
Affiliated field
The utility model relates to the piston ring technical field.
Background technique
Traditional cylinder of internal-combustion engine sealing all is an open type with piston ring, because the existence in gap-clearance of piston rings and casing wall gap, there is direct passage in the leakage of gas in the cylinder.Wearing and tearing along with piston ring excircle and cylinder wall, the gap of gap-clearance of piston rings place constantly increases, the increase of opened gap has reduced the sealing effect of piston ring, inner pressure of air cylinder is reduced, increase gas blowby, scurried oil mass, thereby cause the decline of combustion engine powered property, machine oil fuel oil consumption to increase, greatly reduce the working efficiency of internal-combustion engine.
Summary of the invention
The purpose of this utility model is to provide a kind of built-up piston compression ring that improves the motor sealability, can fundamentally improve the airtight property of motor, and is simultaneously simple in structure, easy to process.
For achieving the above object, the technical solution of the utility model is: described multiple-piece piston-ring comprises main piston ring and interior sub-piston ring, and interior sub-piston ring is positioned at the opening shutoff with the main piston ring from the inside of main piston ring of main piston ring and sub-piston ring.
As a kind of improvement, the described external diameter that is used for shutoff main piston ring opening and is positioned at the sub-piston ring of main piston ring equals the internal diameter of main piston ring, and the opening of main piston ring and interior sub-piston ring staggers mutually.
As a kind of further improvement, described multiple-piece piston-ring also includes the sub-piston ring, and last sub-piston ring and main piston ring and interior sub-piston annulate shaft are to being superimposed.
As a kind of improvement, the radially inner side of described main piston ring opening end is provided with arc groove, the sub-piston ring that is used for shutoff main piston ring opening and is positioned at the main piston ring radially is plugged on arc groove, and interior sub-piston ring radially inner side is provided with the elastic device that interior sub-piston hoop is applied tension force outward.
As a kind of further improvement, described multiple-piece piston-ring also includes the sub-piston ring, and last sub-piston ring and main piston ring and interior sub-piston annulate shaft are to being superimposed.
As a kind of improvement, an end of the opening end of described main piston ring is provided with a slot, and the other end is provided with a tongue, and tongue is inserted in the slot and can slides in slot.
As a kind of further improvement, described multiple-piece piston-ring also includes the sub-piston ring, and last sub-piston ring and main piston ring and interior sub-piston annulate shaft are to being superimposed.
Because adopt technique scheme, described multiple-piece piston-ring comprises main piston ring and interior sub-piston ring, interior sub-piston ring is positioned at the opening shutoff with the main piston ring from the inside of main piston ring of main piston ring and sub-piston ring; Since interior sub-piston ring from the inside of main piston ring with the opening shutoff of main piston ring, reduced the leakage of available gas in the piston ring groove from piston, solved fully the piston ring groove internal leakage available gas of piston ring on gap-clearance of piston rings and the piston may, improved the working efficiency of internal-combustion engine greatly and increased working life of piston ring.
Description of drawings
Fig. 1 is the utility model embodiment one the main piston ring and the structural representation of interior sub-piston ring.
Fig. 2 is the sectional view of the utility model embodiment one multiple-piece piston-ring.
Fig. 3 is the utility model embodiment two the main piston ring and the structural representation of interior sub-piston ring.
Fig. 4 is the left view of the utility model embodiment two main piston ring.
Fig. 5 is the sectional view of the utility model embodiment two multiple-piece piston-ring.
Fig. 6 is the utility model embodiment three the main piston ring and the structural representation of interior sub-piston ring.
Fig. 7 is the sectional view of the utility model embodiment three multiple-piece piston-ring.
Embodiment
Embodiment one: as shown in Figure 1 and Figure 2, described multiple-piece piston-ring comprises main piston ring 1 and interior sub-piston ring 2, and interior sub-piston ring 2 is positioned at the opening shutoff with main piston ring 1 from the inside of main piston ring 1 of main piston ring 1 and sub-piston ring 2.The described external diameter that is used for shutoff main piston ring 1 opening and is positioned at the sub-piston ring 2 of main piston ring 1 equals the internal diameter of main piston ring 1, and the opening of main piston ring 1 and interior sub-piston ring 2 staggers mutually.Described multiple-piece piston-ring also includes sub-piston ring 3, and last sub-piston ring 3 axially is superimposed with main piston ring 1 and interior sub-piston ring 2.
Embodiment two: as Fig. 3, Fig. 4, shown in Figure 5, described multiple-piece piston-ring comprises main piston ring 1 and interior sub-piston ring 2, and interior sub-piston ring 2 is positioned at the opening shutoff with main piston ring 1 from the inside of main piston ring 1 of main piston ring 1 and sub-piston ring 2.One end of the opening end of described main piston ring 1 is provided with a slot 11, and the other end is provided with a tongue 2, and tongue 2 is inserted in the slot 11 and can slides in slot 11.Described multiple-piece piston-ring also includes sub-piston ring 3, and last sub-piston ring 3 axially is superimposed with main piston ring 1 and interior sub-piston ring 2.
Embodiment three: as Fig. 6, shown in Figure 7, described multiple-piece piston-ring comprises main piston ring 1 and interior sub-piston ring 2, and interior sub-piston ring 2 is positioned at the opening shutoff with main piston ring 1 from the inside of main piston ring 1 of main piston ring 1 and sub-piston ring 2.The radially inner side of described main piston ring 1 opening end is provided with arc groove, the sub-piston ring 2 that is used for shutoff main piston ring 1 opening and is positioned at main piston ring 1 radially is plugged on arc groove, and interior sub-piston ring 2 radially inner sides are provided with the elastic device 4 that interior sub-piston ring 2 is outwards applied tension force.Described elastic device 4 is a spring.Described multiple-piece piston-ring also includes sub-piston ring 3, and last sub-piston ring 3 axially is superimposed with main piston ring 1 and interior sub-piston ring 2.
Certainly, when multiple-piece piston-ring of the present utility model is installed on the piston ring groove on the piston, can locating stud be set at the corresponding position at the opening of each ring on the piston, thereby causes the beneficial effects of the utility model to reduce with the rotation that prevents each ring.
Claims (8)
1. multiple-piece piston-ring, it is characterized in that: described multiple-piece piston-ring comprises main piston ring (1) and interior sub-piston ring (2), and interior sub-piston ring (2) is positioned at the opening shutoff with main piston ring (1) from the inside of main piston ring (1) of main piston ring (1) and sub-piston ring (2).
2. multiple-piece piston-ring as claimed in claim 1, it is characterized in that: the described external diameter that is used for shutoff main piston ring (1) opening and is positioned at the sub-piston ring (2) of main piston ring (1) equals the internal diameter of main piston ring (1), and the opening of main piston ring (1) and interior sub-piston ring (2) staggers mutually.
3. multiple-piece piston-ring as claimed in claim 2 is characterized in that: described multiple-piece piston-ring also includes sub-piston ring (3), and last sub-piston ring (3) axially is superimposed with main piston ring (1) and interior sub-piston ring (2).
4. multiple-piece piston-ring as claimed in claim 1, it is characterized in that: the radially inner side of described main piston ring (1) opening end is provided with arc groove, the sub-piston ring (2) that is used for shutoff main piston ring (1) opening and is positioned at main piston ring (1) radially is plugged on arc groove, and interior sub-piston ring (2) radially inner side is provided with the elastic device (4) that interior sub-piston ring (2) is outwards applied tension force.
5. multiple-piece piston-ring as claimed in claim 4 is characterized in that: described elastic device (4) is a spring.
6. multiple-piece piston-ring as claimed in claim 5 is characterized in that: described multiple-piece piston-ring also includes sub-piston ring (3), and last sub-piston ring (3) axially is superimposed with main piston ring (1) and interior sub-piston ring (2).
7. multiple-piece piston-ring as claimed in claim 1 is characterized in that: an end of the opening end of described main piston ring (1) is provided with a slot (11), and the other end is provided with a tongue (2), and tongue (2) is inserted in the slot (11) and can slides in slot (11).
8. multiple-piece piston-ring as claimed in claim 5 is characterized in that: described multiple-piece piston-ring also includes sub-piston ring (3), and last sub-piston ring (3) axially is superimposed with main piston ring (1) and interior sub-piston ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040631 CN2723700Y (en) | 2004-05-18 | 2004-05-18 | Combined piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040631 CN2723700Y (en) | 2004-05-18 | 2004-05-18 | Combined piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723700Y true CN2723700Y (en) | 2005-09-07 |
Family
ID=35037329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040631 Expired - Fee Related CN2723700Y (en) | 2004-05-18 | 2004-05-18 | Combined piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723700Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975979A (en) * | 2015-06-18 | 2015-10-14 | 周建平 | Novel piston ring |
-
2004
- 2004-05-18 CN CN 200420040631 patent/CN2723700Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975979A (en) * | 2015-06-18 | 2015-10-14 | 周建平 | Novel piston ring |
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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 |