CN203430646U - Piston with double gas ring pairs - Google Patents
Piston with double gas ring pairs Download PDFInfo
- Publication number
- CN203430646U CN203430646U CN201320380102.1U CN201320380102U CN203430646U CN 203430646 U CN203430646 U CN 203430646U CN 201320380102 U CN201320380102 U CN 201320380102U CN 203430646 U CN203430646 U CN 203430646U
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- CN
- China
- Prior art keywords
- piston
- ring
- piston ring
- compression
- gas
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- 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 relates to an explosive motor, in particular to a piston with double gas ring pairs in the explosive motor. The piston solves the problem that a piston ring is worn due to operation of the explosive motor and causes gas leakage of a cylinder. The piston with the double gas ring pairs comprises a piston, an oil ring groove, an engine oil ring, a piston ring groove and piston ring gas rings arranged in the piston ring groove. The number of the piston ring gas rings in the piston ring groove is two, the two piston ring gas rings are arranged in an overlapped mode in the vertical direction, ring openings of the two piston ring gas rings are arranged in a staggered mode, and a sealing rubber ring is disposed in the piston and arranged between the piston ring gas rings and the piston ring groove. The two piston ring gas rings and the sealing rubber ring structure are adopted in the piston ring groove, so that high-pressure gas leakage is effectively prevented.
Description
Technical field
The utility model relates to explosive motor, specifically the two compression ring group pistons in a kind of explosive motor.
Background technique
Internal-combustion engine is a kind of dynamic power machine, and it is by fuel is burnt at machine intimate, and the heat energy of being emitted is directly converted to the heat engine of power.Internal-combustion piston engine is the most general with reciprocating piston type.Internal-combustion piston engine mixes fuel and air, in its cylinder combustion, burns, and the heat energy discharging makes to produce in cylinder the combustion gas of High Temperature High Pressure.Combustion gas is expanded and is promoted piston work done, then by connecting rod or other mechanisms, mechanical work is exported, and drives follower work.
In existing explosive motor, piston ring can make along with the operation of explosive motor cylinder barrel and piston wear, causes the opened gap of piston ring to increase, and cylinder barrel gas leakage is serious, thereby compression pressure is reduced, and is short of power, and oil consumption increases.
Summary of the invention
The utility model, in order to solve the piston ring problem that loss causes cylinder barrel to leak gas along with the operation of explosive motor, provides a kind of pair of compression ring group piston especially.
The utility model is taked following technological scheme: a kind of pair of compression ring group piston, comprise the piston ring compression ring being provided with in piston, oil ring groove, machine oil ring, piston ring groove and piston ring groove, piston ring compression ring in piston ring groove has 2,2 piston ring compression rings overlap up and down, the collar extension of two piston ring compression rings is crisscross arranged, in piston ring groove, be also provided with O-ring seal, O-ring seal is arranged between piston ring compression ring and piston ring groove.
Described, O-ring seal is provided with metal skin with the position that piston ring compression ring contacts.Metal skin can prevent that gap-clearance of piston rings place high temperature and high pressure gas from firing bad O-ring seal.
The collar extension of two described piston ring compression rings differs 180 °.
The utility model principle is as follows: explosive motor starts with compression stroke, and piston has lower dead center to move to top dead center.Compression pressure, by little increase, reaches standard pressure.When compression stroke and workmanship stroke, below pressurized gas rush at by first latch closure, the forward march of gas is blocked and cannot be passed through by second piston ring.Therefore, pressurized gas can only flow to piston ring groove direction by piston collar extension, now pressurized gas again sealed cushion rubber block, thereby piston is no longer leaked gas.
Compared with prior art, adopt in piston ring groove of the present utility model dual piston ring compression ring and O-ring seal structure to arrange, effectively stoped the gas leakage of pressurized gas, have simple in structure, the feature that cost of production is low.
Accompanying drawing explanation
Fig. 1 is the utility model plan view;
Fig. 2 is the utility model side view;
1-piston ring compression ring in figure, 2-O-ring seal, 3-oil ring groove, 4-piston, 5-machine oil ring.
Embodiment
As Fig. 1, shown in 2, a kind of pair of compression ring group piston, comprise the piston ring compression ring 1 being provided with in piston 4, oil ring groove 3, machine oil ring 5, piston ring groove and piston ring groove, piston ring compression ring 1 in piston ring groove has 2, and 2 piston ring compression rings 1 overlap up and down, and the collar extension of two piston ring compression rings 1 is crisscross arranged, in piston ring groove, be also provided with O-ring seal 2, O-ring seal 2 is arranged between piston ring compression ring 1 and piston ring groove.
Described, O-ring seal 2 is provided with metal skin with the position that piston ring compression ring 1 contacts.
The collar extension of two described piston ring compression rings 1 differs 180 °.
The utility model piston ring groove is than 1 times of existing groove width, for place two piston rings simultaneously; And than existing grove depth 3-4 millimeter, for placing O-ring seal.Piston ring should exceed 1.5 millimeters than piston, and piston ring packs in cylinder barrel after compressing.
Because adopt the combination of dicyclo, the collar extension of upper ring and a lower ring differs 180 °, does not exist lip reflex.Therefore for piston ring compression ring of the present utility model, be not afraid of wearing and tearing, its opened gap can reach 5-6 millimeter.
Claims (3)
1. a two compression ring group piston, comprise the piston ring compression ring (1) being provided with in piston (4), oil ring groove (3), machine oil ring (5), piston ring groove and piston ring groove, it is characterized in that: the piston ring compression ring (1) in piston ring groove has 2,2 piston ring compression rings (1) overlap up and down, the collar extension of two piston ring compression rings (1) is crisscross arranged, in piston ring groove, be also provided with O-ring seal (2), O-ring seal (2) is arranged between piston ring compression ring (1) and piston ring groove.
2. according to claim 1 pair of compression ring group piston, is characterized in that: O-ring seal (2) is provided with metal skin with the position that piston ring compression ring (1) contacts.
3. according to claim 1 pair of compression ring group piston, is characterized in that: the collar extension of two piston ring compression rings (1) differs 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320380102.1U CN203430646U (en) | 2013-06-28 | 2013-06-28 | Piston with double gas ring pairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320380102.1U CN203430646U (en) | 2013-06-28 | 2013-06-28 | Piston with double gas ring pairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430646U true CN203430646U (en) | 2014-02-12 |
Family
ID=50059691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320380102.1U Expired - Fee Related CN203430646U (en) | 2013-06-28 | 2013-06-28 | Piston with double gas ring pairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458323A (en) * | 2018-12-19 | 2019-03-12 | 东莞赫升机电有限公司 | A kind of complex piston ring for compressor |
-
2013
- 2013-06-28 CN CN201320380102.1U patent/CN203430646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458323A (en) * | 2018-12-19 | 2019-03-12 | 东莞赫升机电有限公司 | A kind of complex piston ring for compressor |
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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: 20140212 Termination date: 20180628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |