CN204024841U - A kind of high-performance multiple-piece piston-ring - Google Patents
A kind of high-performance multiple-piece piston-ring Download PDFInfo
- Publication number
- CN204024841U CN204024841U CN201420486650.7U CN201420486650U CN204024841U CN 204024841 U CN204024841 U CN 204024841U CN 201420486650 U CN201420486650 U CN 201420486650U CN 204024841 U CN204024841 U CN 204024841U
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- ring
- piston
- twist type
- type ring
- thickness
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Abstract
A kind of high-performance multiple-piece piston-ring, described multiple-piece piston-ring is made up of the upper and lower twist type ring be stacked together; The fitting surface that stacks of described upper and lower twist type ring is the ramp structure cooperatively interacted, and the thickness of opening side is greater than the thickness of open opposite sides; Wherein said upper twist type ring is the conical anti-twist piston ring that outer edge thickness is less than interior edge thickness; Described lower twist type ring is the positive distortion piston ring of inner conical that outer edge thickness is greater than interior edge thickness; And the outside cone angle of upper twist type ring is equal with the interior cone angle of lower twist type ring, the cross section of the upper and lower distortion annular be stacked together becomes the rectangular section of double altitudes.Eliminate the counterpart shortcoming of ring due to the utility model multiple-piece piston-ring and partly eliminate sideshake leakage, thus improve tightness.Make air-intake of combustion engine amount increase by 10%, leakage rate reduces 40%; The reversing impact engine running reducing piston assembly is steady, reduce engine oil consumption, and extends machine oil working life.
Description
Technical field
The utility model relates to technical field of internal combustion engines, particularly relates to a kind of high-performance multiple-piece piston-ring being applicable to internal-combustion engine.
Background technique
Piston ring is strength member in internal-combustion engine, plays sealing gas, strikes off casing wall Excess lubricating oil, heat conduction effect.Use single piston ring at present.Design the most widely forms labyrinth sealing gas by twice monomer compression ring.Its shortcoming be piston ring after a period of operation, two panels cyclosiloxane monomer with piston up-down process and be subject to working gas pressure synergy under, their opening can align gradually, engineering is piston ring, thus formed together from the blow-by gas passage between firing chamber and crankcase, reduce the thermal efficiency of internal-combustion engine, the unburned carbon black that gas blowby carries pollutes crankcase inner engine oil, causes oil lubricating performance to reduce and accelerates component wear.
Summary of the invention
The purpose of this utility model provides a kind of high-performance multiple-piece piston-ring for deficiency existing in above-mentioned prior art just.This piston ring can eliminate due to piston ring formed firing chamber and crankcase between blow-by gas passage, reduce engine oil pollution ensure lubrication and keep the thermal efficiency.
The purpose of this utility model realizes by following technique measures:
High-performance multiple-piece piston-ring of the present utility model is made up of the upper and lower twist type ring be stacked together; The fitting surface that stacks of described upper and lower twist type ring is the ramp structure cooperatively interacted, and the thickness of opening side is greater than the thickness of open opposite sides; Wherein said upper twist type ring is the conical anti-twist piston ring that outer edge thickness is less than interior edge thickness; Described lower twist type ring is the positive distortion piston ring of inner conical that outer edge thickness is greater than interior edge thickness; And the outside cone angle of upper twist type ring is equal with the interior cone angle of lower twist type ring, the cross section of the upper and lower distortion annular be stacked together becomes the rectangular section of double altitudes.
The thickness difference of the utility model split shed side thickness and open opposite sides is more than or equal to after multiple-piece piston-ring is installed to piston ring groove and forms 50% of sideshake.
The installation initial position of upper and lower twist type ring described in the utility model is arranged in the be staggered mode of 180 degree of opening; Described upper and lower twist type ring external diameter is equal, and internal diameter requires to design according to design elastic force.
The angle β of 0.3o ~ 1 o is had between the lower plane of positive twist type ring described in the utility model and the annular groove lower plane of piston; Described positive twist type ring according to β angle need within it on ring edge side angle be chamfering formula structure or ring mesa structure.
Associative ring of the present utility model is upper with direction, firing chamber, and crankcase direction is described under being.Its pressed on ring is reverse torsion ring, and advantage is that tightness is strong; Lower ring is positive twist type ring, and feature is that sweep-out mechanism oiliness can be good.They combine be placed on piston one annular groove in play than the better tightness of single piston ring and scrape off more Excess lubricating oil effect.
The beneficial effects of the utility model are as follows:
Eliminate the counterpart shortcoming of ring due to multiple-piece piston-ring and partly eliminate sideshake leakage, thus improve tightness.Make air-intake of combustion engine amount increase by 10%, leakage rate reduces 40%; The reversing impact engine running reducing piston assembly is steady, reduce engine oil consumption, and extends machine oil working life.
Accompanying drawing explanation
Figure 1 shows that high-performance associative ring stereogram.
Fig. 2 is that the single piston ring of prior art is arranged on schematic diagram in piston ring groove.
Fig. 3 is upper twist type ring structural representation (A-A of Fig. 1 cuts open).
Fig. 4 is lower twist type ring structural representation (A-A of Fig. 1 cuts open).
Fig. 5 is the fundamental diagram of the utility model associative ring.
Fig. 6 is the enlarged view of the utility model associative ring when working with cylinder wall in piston ring groove.
Shown in Fig. 7, Fig. 8 be respectively positive twist type ring side on angle take chamfering respectively or cut the sectional drawing of concave station.
Embodiment
The utility model is described in further detail below with reference to embodiment's (accompanying drawing).Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, high-performance multiple-piece piston-ring of the present utility model is made up of the upper and lower twist type ring 1,2 be stacked together, and the installation initial position of described upper and lower twist type ring is arranged in the be staggered mode of 180 degree of opening; The fitting surface that stacks of described upper and lower twist type ring 1,2 is the ramp structure cooperatively interacted, and the thickness of opening side is greater than the thickness of open opposite sides, and thickness difference is more than or equal to after multiple-piece piston-ring is installed to piston ring groove and forms 50% of sideshake.; Wherein said upper twist type ring is the conical anti-twist piston ring that outer edge thickness is less than interior edge thickness; Described lower twist type ring is the positive distortion piston ring of inner conical that outer edge thickness is greater than interior edge thickness; And the outside cone angle of upper twist type ring equal with the interior cone angle of lower twist type ring (see Fig. 3,4), the cross section of the upper and lower distortion annular be stacked together becomes the rectangular section of double altitudes.
Upper and lower twist type ring external diameter described in the utility model is equal, and internal diameter requires to design according to design elastic force.
The angle β of 0.3o ~ 1 o is had between the lower plane of positive twist type ring described in the utility model and the annular groove lower plane of piston.
More specifically:
The outside cone angle of upper reverse torsion ring is equal with the interior cone angle of lower positive twist type ring, thus they be stacked together formation rectangular section, its combined altitudes is H
1.The annular groove height of piston is H.Associative ring is installed to after in the annular groove of piston, has H > H
1, and have H-H
1=Δ H.Wherein claim in Δ H engineering to be piston ring side clearance, its effect one is that piston ring can be installed in the piston ring groove of piston, and two is operationally leave piston ring thermal expansion leeway.During general design, Δ H is 2% to 5% of H.There are two negative effects in this sideshake: one is cause gas leakage, and two is cause on lubricating oil to channel to firing chamber deterioration fuel combustion.Fig. 2 is the single piston ring used now sketch when being arranged on the annular groove of piston, the annular groove height H showing piston in figure and the sideshake Δ H formed with the annular groove on piston.
Multiple-piece piston-ring of the present utility model is at work for preventing counterpart, and (shown in Figure 3) be reverse torsion ring opening thickness H above
2than opening opposite side place H
3thick, namely its basic circle high size is large.I.e. H
2-H
3>=1 ╱ 2 Δ H.Too, opening Thickness Ratio opening opposite side is thick for lower twist type ring shown in Fig. 4.I.e. H
4-H
5>=1 ╱ 2 Δ H.Namely their thickness difference is all more than or equal to 50% Δ H sideshake, and is progressive thickening from opening opposite side to opening.The upper and lower two twist type ring counterparts difference 180 degree of initial position during installation, so associative ring is consistent at the thickness of whole circumference and combined altitudes, and this combined altitudes H
1< H, ensures well to install.
Shown in working principle Fig. 5 of high-performance associative ring.When internal combustion engine piston ring motion and power effect under, the rotary motion of random relative casing wall occurs, and is exactly as Fig. 1 rotates around I-I axis.Exactly in this motion conventional monomer piston ring will occur two panels cyclosiloxane monomer to lip reflex, equally for common associative ring also can occur upper and lower two rings to lip reflex.When the two rings of associative ring relatively rotate to form counterpart time, the piston ring of the utility model patent at this moment, just has pressed on ring opening webbing to leave the opposite side thinnest part of lower ring opening, and the opening webbing of downward ring rotates, two webbings move closer to, and its combination height also increases gradually.H is increased to when new combination is high
1during+Δ H=H, the constraint that in associative ring, the lower end surface of the upper-end surface of pressed on ring and the lower ring of associative ring is just subject to the annular groove end face of piston stop operating eliminate associative ring to lip reflex.Except eliminating lip reflex, also have the elimination of part sideshake to close further minimizing on gas leakage and lubricating oil channel to firing chamber, strengthen tightness.
Fig. 6 is the amplification situation of associative ring when working with cylinder wall in the annular groove of piston.Can see that the annular groove lower plane of the lower ring of associative ring and the lower plane of positive twist type ring and piston has a suitable small angle β.This angle β has two effects.Owing to there being the lubricating pad effect that micro-machine oil has in β angle: one, reduce piston ring and impact to associative ring, in like manner in the impact of the motion commutation from lower dead center break-in to top dead center at outburst moment working gas pressure conduction.Two is be conducive to when piston ring moves downward reducing the dynamic pressure that in motion, machine oil produces, and is more conducive to the machine oil reduce engine oil consumption struck off on cylinder wall, promotes fuel combustion.
As shown in Figure 7, Figure 8, on the interior ring edge side of described positive twist type ring, angle needs to process chamfering formula structure or ring mesa structure according to β angle, and this structural measure ensures to obtain optimum angle β.
Concrete implementation result:
In petrol engine field: to take the U.S. as representative use reverse torsion ring (vapour little red flag CA4GE petrol engine system introduces Chrysler of the U.S.) at second gas ring in North America, and to take Germany as representative use positive twist type ring (Santana 2000) in Europe.Measure after installing this high-performance multiple-piece piston-ring by Santana 2000 and show that motor reduces than former ring group in different revolution air leakage, air inflow increases than former ring group, and cylinder pressure increases as following table:
Air leakage reduces:
| Engine speed r/min | Former ring air leakage L/min | Associative ring air leakage L/min | Variable quantity % |
| 1600 | 14 | 9 | -36% |
| 1800 | 14 | 9 | -36% |
| 2000 | 15 | 9 | -40% |
| 2400 | 14 | 8 | -43% |
| 2800 | 13 | 9 | -31% |
| 3200 | 13 | 9 | -31% |
| 3600 | 14 | 6 | -57% |
| 4000 | 14 | 6 | -57% |
| 4400 | 15 | 5 | -67% |
| 4800 | 17 | 5 | -70% |
Air inflow increases:
Cylinder pressure increases: genuine ring is 11 ㎏/㎝
2, associative ring is 13 ㎏/㎝
2.The lazy weight analyzing air leakage minimizing as calculated presses raising 18% to make cylinder.The increasing amount of air inflow is only the main cause of cylinder pressure lifting.
Cylinder pressure is recorded: be 12 ㎏/㎝ after little red flag dress associative ring
2; Former U.S. reverse torsion ring cylinder pressure is 10.5 ㎏/㎝
2.The lifting 14% of cylinder pressure.
Vehicle dynamic quality 0 ~ 100 kilometer time shorten used 1 ~ 1.5 second after dress associative ring, hundred kilometers of constant-speed fuel economies decrease.
Claims (6)
1. a high-performance multiple-piece piston-ring, is characterized in that: described multiple-piece piston-ring is made up of the upper and lower twist type ring be stacked together; The fitting surface that stacks of described upper and lower twist type ring is the ramp structure cooperatively interacted, and the thickness of opening side is greater than the thickness of open opposite sides; Wherein said upper twist type ring is the conical anti-twist piston ring that outer edge thickness is less than interior edge thickness; Described lower twist type ring is the positive distortion piston ring of inner conical that outer edge thickness is greater than interior edge thickness; And the outside cone angle of upper twist type ring is equal with the interior cone angle of lower twist type ring, the cross section of the upper and lower distortion annular be stacked together becomes the rectangular section of double altitudes.
2. high-performance multiple-piece piston-ring according to claim 1, is characterized in that: the installation initial position of described upper and lower twist type ring is arranged in the be staggered mode of 180 degree of opening.
3. high performance multiple-piece piston-ring according to claim 1, is characterized in that: described upper and lower twist type ring external diameter is equal, and internal diameter requires to design according to design elastic force.
4. high-performance multiple-piece piston-ring according to claim 1, is characterized in that: the angle β having 0.3o ~ 1 o between the lower plane of described positive twist type ring and the annular groove lower plane of piston.
5. high-performance multiple-piece piston-ring according to claim 1, is characterized in that: on the interior ring edge side of described positive twist type ring, angle is chamfering formula structure or ring mesa structure.
6. high-performance multiple-piece piston-ring according to claim 1, is characterized in that: the thickness difference of opening side thickness and open opposite sides is more than or equal to after multiple-piece piston-ring is installed to piston ring groove and forms 50% of sideshake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486650.7U CN204024841U (en) | 2014-08-27 | 2014-08-27 | A kind of high-performance multiple-piece piston-ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420486650.7U CN204024841U (en) | 2014-08-27 | 2014-08-27 | A kind of high-performance multiple-piece piston-ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024841U true CN204024841U (en) | 2014-12-17 |
Family
ID=52064716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420486650.7U Expired - Fee Related CN204024841U (en) | 2014-08-27 | 2014-08-27 | A kind of high-performance multiple-piece piston-ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370432A (en) * | 2015-11-30 | 2016-03-02 | 柳州市恒达动力机械制造有限公司 | Wedged spherical surface combined air ring of internal combustion machine |
-
2014
- 2014-08-27 CN CN201420486650.7U patent/CN204024841U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370432A (en) * | 2015-11-30 | 2016-03-02 | 柳州市恒达动力机械制造有限公司 | Wedged spherical surface combined air ring of internal combustion machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170827 |