CN1916448A - Piston ring with no end gap, and piston of containning the piston ring - Google Patents
Piston ring with no end gap, and piston of containning the piston ring Download PDFInfo
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- CN1916448A CN1916448A CN 200610099266 CN200610099266A CN1916448A CN 1916448 A CN1916448 A CN 1916448A CN 200610099266 CN200610099266 CN 200610099266 CN 200610099266 A CN200610099266 A CN 200610099266A CN 1916448 A CN1916448 A CN 1916448A
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- 230000000295 complement effect Effects 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 210000000707 wrist Anatomy 0.000 claims description 2
- 238000007142 ring opening reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 238000002485 combustion reaction Methods 0.000 description 14
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 8
- 238000010304 firing Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000005474 detonation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A piston ring of end gap free type is prepared as making external diameter periphery of piston be greater than internal diameter periphery of cylinder in size of one piston ring opening end superposition, forming diagonal cut in axial section complementation at two ends of superposed part to let thickness of superposed part be the same as thickness of piston ring, opening rotation proof positioning groove on internal cylindrical surface and setting positioning pins in space of 180 degree on piston ring.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, air compressor employed hermetically sealed, prevent the piston ring counterpart, possess the diagonal cut piston ring and the piston of integrated abrasion compensation, the piston that is referred to as not have the end gap piston ring and contains this piston ring.
Background technique
In the prior art, internal-combustion engine, air-compressor piston ring are the straight flange kerf, also have the hypotenuse otch and the cascade otch of only a few.Straight flange otch piston ring is most widely used general.It utilizes two to three roads compression compression ring, and adjacent piston ring interlaces 120 °-180 ° with the straight flange otch on piston, form mazy sealing configuration, reaches close gas effect.Owing to piston ring is a non-normal ellipse, after cylinder is by piston and piston ring scuffing, also lose circularity, straight flange otch end gap increases, and is accompanied by the piston ring otch alignment of several roads, causes the increase of wearing and tearing end gap, close gas to lose efficacy and the close gas inefficacy of counterpart.Make that compression pressure reduces in the cylinder, the heat of compression descends, detonation velocity slows down, pressurized gas and detonation gas reveals to crankcase.Thereby make combustion engine powered reduction, scurry lubricant oil generation burn oil to the firing chamber and emit blue smoke, follow motor to discharge a large amount of CH and CO etc. simultaneously and do not fire clean flammable harmful gas befouling environment.The gas of internal-combustion engine high temperature, high pressure scurries into that crankcase makes oil ageing, analyses carbon in addition, gelatinize, forfeiture lubricating function, and enters closure from the crankcase waste gas pipe, with the particle contamination closure of lubricant oil.Concerning air compressor: air pressure is difficult to improve, and oily thing increases in the gas storage bag, and energy consumption increases, and efficient reduces, and so far must carry out large repairs to internal-combustion engine and air compressor; Boring cylinder, replacing piston and piston ring.Hypotenuse otch piston ring and straight flange otch piston ring are basic identical, and an angle only tilts the straight flange otch.Cascade otch piston ring can compensate the interface gaps that increases because of cylinder inner wall, the wearing and tearing of piston ring external diameter, but exist pressurized air and detonation gas from the upper shed gap, reach ring and enter at the bottom of the piston ring groove, scurry out, enter down ring and crankcase together through under shed with the annular groove sideshake.Can reduce the internal-combustion engine compression pressure equally, increase fuel consumption, power of IC engine is descended.
Summary of the invention
The objective of the invention is to avoid the deficiencies in the prior art, and a kind of piston ring of similar cascade otch is provided and contains the piston of this piston ring.After cylinder inner wall and the wearing and tearing of piston ring external diameter, can possess integrated abrasion compensation.Can not cause the close gas of gas leakage to lose efficacy because of the piston ring otch aligns.Can not produce pressurized gas and detonation gas and under the sideshake of piston ring, end gap, scurry crankcase, can not go up lubricating oil carry-over and enter the firing chamber, in the wear compensation scope, remain the original compression pressure of internal-combustion engine, can not reduce power.Make fuel combustion more abundant, reduce HC and the discharging of CO and the generation of NOx.Reduce oil ageing.Improve the rate that makes full use of of fuel oil, fuel saving prolongs internal-combustion engine overhaul mileage, the no end gap piston ring of sealing hermetically sealed diagonal cut tighter, that prevent each road piston ring counterpart is provided and contains the piston of this piston ring.
The object of the present invention is achieved like this: the girth of piston ring grows the overlapping size in gap-clearance of piston rings termination than the girth of cylinder bore diameter, makes it the length as otch.The otch of top piston ring is a diagonal cut, and promptly by the diagonal of the last edge on the close piston ring of the external cylindrical surface of piston ring axial cross section to the following corner of piston ring internal diameter lower end, two ends is the otch of complementary overlap joint.The following triangle faces end head plugging of this diagonal cut the gap of piston and cylinder, last triangle termination is that four limit wedge shapes or five limit wedge shapes are overlapped on down on the triangle termination, shutoff the gap of time triangle termination.Leak the gas of coming in thereby seal up sideshake on piston ring and the piston ring groove, upper shed gap, gas can not be entered down in one piston ring land and the annular groove, so crankcase, reach close gas effect.The second road piston ring is a taper-face ring, its cornerwise otch is opposite with the otch of top piston ring, near the supreme end face in following corner on base and the line at the angle that joins of inner cylindrical surface or interior positive twist crank slot, two ends be that complementation overlaps otch from the outer conical surface of piston ring axial cross section.Otch is following four limit wedge shapes and last triangular structure, or following five limit wedge shapes and last triangular structure, plays a part to prevent to the firing chamber pump lubricating oils.In order to prevent the piston ring counterpart, piston ring is located in piston groove, in the piston ring inner cylinder, by opening an anti-rotation groove near the termination, at the bottom of the annular groove of piston, become the position of β=30 °～45 with wrist pin axle center line, become edge one little pin on 180 ° of directions at the bottom of each annular groove, be used for embedding the anti-rotation groove of piston ring, play the location and prevent the piston ring rotation.
Owing to adopt technique scheme, can when cold car, improve compression pressure without combustion, when cylinder of internal-combustion engine wall, the wearing and tearing of piston ring external diameter, as long as diagonal cut is also overlapping, just can not reduce compression pressure and deflagration pressure, reduce the idle work that compression stroke is done, do not understand gas blowby lubricating oil carry-over up and down, sufficient combustion reduces the discharging of exhaust pollutant, improves the power of internal-combustion engine.And each ring prevents to rotate counterpart, encircles with cylinder wall and weares and teares evenly, makes it to become integrated abrasion compensation, prolongs working life, saving fuel oil, the lubricated all kinds of resources of wet goods of internal-combustion engine.
Description of drawings
Fig. 1 is the plan view of the no end gap piston ring of the hermetically sealed diagonal cut of the present invention.Among the figure: T is a lap length, and S is the clearance for expansion, and F is that piston ring is subjected to the external force cut closure in working order, and g is anti-rotation locating slot;
Fig. 2, Fig. 3, Fig. 4 are respectively that the present invention does not have the end gap piston ring; The local cut-away enlarged view of keystone ring, cambridge ring, rectangular ring shows diagonal faying surface m; Among this figure three kinds of structures of cylinder ring;
Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 are respectively that the present invention does not have the end gap piston ring; The local cut-away enlarged view of the keystone ring of taper-face ring, cambridge ring, rectangular ring.Wherein Fig. 8, Fig. 9, Figure 10 are the taper-face rings that is provided with the distortion groove.
Figure 11 is the local shaft side figure of the otch of the present invention when not having end gap piston ring nature;
Figure 12 is that the present invention does not have K in the end gap piston ring accompanying drawing to zoomed-in view; Among the figure: R is for preventing that stress from concentrating the fillet of design, and J cuts shoulder, and α is a leaning angle of cutting shoulder, also can flare then for camber angle α for bearing; For preventing the termination and cut shoulder J and interfere clamping stagnation when the expanded by heating, thus design cut shoulder J cut the shoulder inclination alpha;
Figure 13 is that the present invention does not have the end gap piston ring and is positioned over local shaft side figure in the cylinder, and it shows the working state of the no end gap piston ring overlap joint mouthful of hermetically sealed diagonal cut;
Figure 14, Figure 15, Figure 16 are respectively the no end gap piston rings of another embodiment of the present invention; The local cut-away enlarged view of keystone ring, cambridge ring, rectangular ring shows diagonal faying surface m; Among this figure three kinds of structures of cylinder ring;
Figure 17, Figure 18, Figure 19 are respectively the no end gap piston rings of another embodiment of the present invention; The local cut-away enlarged view of keystone ring, cambridge ring, rectangular ring shows diagonal faying surface m; Among this figure three kinds of structures of barrel face ring;
Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25 are respectively the no end gap piston rings of another embodiment of the present invention; The local cut-away enlarged view of the keystone ring of taper-face ring, cambridge ring, rectangular ring; Wherein Figure 20, Figure 21, Figure 22 are the taper-face rings that is provided with the distortion groove.
The local shaft side figure of otch when Figure 26 is the no end gap piston ring nature of another embodiment of the present invention;
Figure 27 is that the no end gap piston ring of another embodiment of the present invention is positioned over the local shaft side figure in the cylinder, and it shows the working state of the no end gap piston ring overlap joint mouth of hermetically sealed diagonal cut;
Figure 28 is that the present invention does not have the end gap piston ring and contains the partial sectional view of the real work of piston in cylinder of this piston ring; Among the figure: 1 cylinder block, 2 top piston rings (hermetically sealed cornerwise no end gap bucket face or cylinder piston ring), anti-rotation locating stud on 3 pistons, 4 pistons, 5 second road piston rings (the no end gap piston ring with taper face of hermetically sealed diagonal cut), β is the angle of locating stud 3 and piston pin axis, and I is local the amplification;
Figure 29 is the I portion enlarged view among the no end gap piston ring of the hermetically sealed diagonal cut of the present invention and the piston Figure 28 that contains this piston ring.
Embodiment
In Fig. 1, piston ring is subjected to the effect of external force F to make the working state of opening closure.Expressed hermetically sealed diagonal cut piston ring working state, the length T of two ends overlap joint mouth, the clearance for expansion S that is heated required, open a sulculus g at the piston ring inner circle cylinder more nearby apart from one end head, or open a sulculus g (not shown) and the position of analysing and observe A-A at nearer place, another termination.Gas leakage up and down in interface length T shutoff, and it is the design point of hermetically sealed cornerwise no end gap integrated abrasion compensation that piston ring possesses.When cylinder bore diameter and the wearing and tearing of piston ring external diameter, when making overlap joint termination T=0, the sealing characteristics of this technology just enters the state of the art of existing straight flange otch.
Fig. 2 shows the cutaway view Amplified image of the keystone-type piston ring diagonal cut of cylinder or bucket face (the bucket face is not mapped), Fig. 3 illustrates the cutaway view Amplified image of keystone ring diagonal cut, Fig. 4 illustrates the cutaway view Amplified image of rectangle piston ring diagonal cut, their diagonal mating face m is the piston ring axial cross section, external cylindrical surface or outer drum identity distance end face begin to the diagonal cut of piston ring inner circle cylinder and bottom surface crosspoint, as shown in figure 11 apart from δ; The conical surface (or plane) of the camber line (or profound line) that the camber line (or profound line) that the same round upper shed length T of ordering along diagonal obtuse angle a is ordered to b is ordered to c to the same round upper shed length D of acute angle d point, the boss of the four limit wedge shapes overlap joints that made faying surface m constitutes, the complementary triangle that the same circular arc line (or profound line) that the same circular arc line (or profound line) of order with the other end B-A is ordered to C-D is formed overlaps the interface shape of boss.Also it can be made oppositely.Its down the shutoff of triangle boss the gap of cylinder wall and piston ring land.In the scope of lap length T, the diagonal cut piston ring possesses integrated abrasion compensation.All the time can keep the initial sealing state.
Fig. 5 to Figure 10 is the notch features enlarged view of taper-face ring.The inverted configuration of it and Fig. 2, Fig. 3, Fig. 4.Its structure is to begin meeting the place, angle or connecing the diagonal at place, angle, the diagonal cut of triangle complimentary section on the four limit wedge shapes under forming with the inner cylinder (or inner conical surface) of positive twist crank slot to piston ring upper-end surface and inner cylinder by outer conical surface by the following angular distance δ on base.In order that better frizing is assisted the close gas of upper track ring, play a part to prevent to the firing chamber pump lubricating oils.
Figure 12 is the enlarged view of K line of vision among each figure, and the design of the fillet of R is to concentrate in order to eliminate notch stress among the figure.The design of cutting fillet α of cutting shoulder J is to produce the interference of termination right angle side and R arc to make that to take the jointing ring tall and big in the annular groove width dimensions and stuck in order to prevent the piston ring expanded by heating.
Figure 13 diagonal cut piston ring is positioned over the local shaft side figure in the cylinder.The working state of no end gap piston ring in cylinder that shows hermetically sealed diagonal cut in its space and its hermetic characteristic and integrated abrasion compensation.
To shown in Figure 27, be another embodiment of the present invention as Figure 14.Figure 14 shows the cutaway view Amplified image of the keystone-type piston ring diagonal cut of cylinder, Figure 15 illustrates the cutaway view Amplified image of keystone ring diagonal cut, Figure 16 illustrates the cutaway view Amplified image of rectangle piston ring diagonal cut, Figure 17 shows the cutaway view Amplified image of the keystone-type piston ring diagonal cut of barrel face, Figure 18 illustrates the cutaway view Amplified image of keystone ring diagonal cut, Figure 19 illustrates the cutaway view Amplified image of rectangle piston ring diagonal cut, their diagonal mating face m is the piston ring axial cross section, external cylindrical surface or outer drum identity distance end face begin to the piston ring bottom surface apart from the diagonal cut of inner cylindrical surface intersection point place apart from ξ, as shown in figure 26 apart from δ; The conical surface (or plane) of the camber line (or profound line) that the camber line (or profound line) that the same round upper shed length T of ordering along diagonal obtuse angle a is ordered to b is ordered to c apart from the same round upper shed length D of the obtuse angle d point of ξ to the intersection point of inner cylinder to the bottom surface, the boss of the five limit wedge shapes overlap joints that made faying surface m constitutes, the complementary triangle that the same circular arc line (or profound line) that the same circular arc line (or profound line) of order with the other end B-A is ordered to C-D is formed overlaps the interface shape of boss.Also it can be made oppositely.Its down the shutoff of triangle boss the gap of cylinder wall and piston ring land.In the scope of lap length T, the diagonal cut piston ring possesses integrated abrasion compensation.All the time can keep the initial sealing state.
Figure 20 to Figure 25 is the notch features enlarged view of taper-face ring.The inverted configuration of it and Figure 14, Figure 15, Figure 16.Its structure is to begin meeting the place, angle or connecing the diagonal of the distance ξ of place, angle, the diagonal cut of triangle complimentary section on the five limit wedge shapes under forming with the inner cylinder (or inner conical surface) of positive twist crank slot to piston ring upper-end surface and inner cylinder by outer conical surface by the following angular distance δ on base.In order that better frizing is assisted the close gas of upper track ring, gas blowby on the shutoff crankcase plays a part to prevent to the firing chamber pump lubricating oils.Figure 27 diagonal cut piston ring is positioned over the local shaft side figure in the cylinder.The working state of no end gap piston ring in cylinder that shows hermetically sealed diagonal cut in its space and its hermetic characteristic and integrated abrasion compensation.
Figure 28 and Figure 29 are illustrated at the bottom of the piston ring groove of piston 4 on the position with piston pin axis angle β=30 °～40 ° and make a locating stud 3.Locating stud in the two adjacent piston ring grooves interlaces 180 °.Match with the locating slot g of separately piston ring, play the anti-rotation effect of piston ring.To reach the purpose that prevents that the piston ring otch from aligning.In order that make the more even of cylinder bucket wearing and tearing.
Be to be understood that, the above illustrative and nonrestrictive just for the purpose of the present invention of explanation in conjunction with the embodiments, without departing from the spirit and scope of the present invention, can make many changes and modification to the present invention, it all will drop in the scope of the invention defined by the claims.
Claims (9)
1. piston that does not have the end gap piston ring and contain this piston ring, it is characterized in that: the otch of piston ring is a diagonal cut, and the locating stud that is provided with at the bottom of the annular groove of anti-rotation locating slot and piston matches.
2. no end gap piston ring according to claim 1 and contain the piston of this piston ring, it is characterized in that: the diagonal cut of cylinder or bucket face piston ring is that the periphery of piston ring axial cross section begins to the diagonal of piston ring inner circle cylinder and bottom surface crosspoint apart from end face distance (δ), and the boss of the four limit wedge shapes overlap joints that constituted of the conical surface of camber line along the camber line of (b) point of the same round upper shed length (T) of diagonal obtuse angle (a) point or profound line to (c) of the same round upper shed length of acute angle (d) point (T) point or profound line or the mating face (m) that makes on the plane, the complementary triangle that same circular arc line of putting to (C-D) with the same circular arc line of the other end (B-A) point or profound line or profound line are formed overlaps the form of cut or cuts of boss.
3. no end gap piston ring as claimed in claim 2 and contain the piston of this piston ring, it is characterized in that: the diagonal cut of piston ring with taper face begins the diagonal that meets the place, angle or meet the place, angle with the cylinder or the inner conical surface of positive twist crank slot to piston ring upper-end surface and inner cylindrical surface, the diagonal cut structure of triangle complimentary section on the four limit wedge shapes under forming by the outer conical surface in cross section near the following angular distance (δ) on base.
4. no end gap piston ring according to claim 1 and contain the piston of this piston ring, it is characterized in that: the diagonal cut of cylinder or bucket face piston ring is that the periphery of piston ring axial cross section begins to the diagonal of piston ring inner circle cylinder and bottom surface crosspoint apart from end face distance (δ), and the boss of the five limit wedge shapes overlap joints that constituted to the conical surface of the camber line of (c) point of the same round upper shed length of obtuse angle (d) point (T) of the intersection point of inner cylinder distance (ξ) or profound line or the mating face (m) that makes on the plane to the bottom surface along the camber line of (b) point of the same round upper shed length (T) of diagonal obtuse angle (a) point or profound line, the complementary triangle that same circular arc line of putting to (C-D) with the same circular arc line of the other end (B-A) point or profound line or profound line are formed overlaps the form of cut or cuts of boss.
5. no end gap piston ring as claimed in claim 4 and contain the piston of this piston ring, it is characterized in that: the diagonal cut of piston ring with taper face begins the diagonal that meets the place, angle or connect angle place's distance (ξ) with the cylinder or the inner conical surface of positive twist crank slot to piston ring upper-end surface and inner cylindrical surface, the diagonal cut structure of triangle complimentary section on the five limit wedge shapes under forming by the outer conical surface in cross section near the following angular distance (δ) on base.
6. as any described no end gap piston ring in the claim 1 to 5 and contain the piston of this piston ring, it is characterized in that: the piston ring otch cut shoulder (J) and faying surface (m) be combined into one (R) arc angle, cutting shoulder (J) has one (α) inclination angle to cutting root (R) arc place, and (α) inclination angle is leaning angle or camber angle.
7. no end gap piston ring as claimed in claim 1 and contain the piston of this piston ring, it is characterized in that: the piston ring inner circle cylinder is opened a semi-cylindrical sulculus more nearby apart from one end head, or opens a semi-cylindrical sulculus at nearer place, another termination.
8. no end gap piston ring as claimed in claim 1 and contain the piston of this piston ring is characterized in that: bury an anti-rotation locating stud at the bottom of the annular groove of piston underground, the location of matching with the anti-rotation locating slot of piston ring.
9. as claim 1 or 8 described no end gap piston rings and contain the piston of this piston ring, it is characterized in that: the anti-rotation locating stud of burying underground on the piston becomes 30 °～40 ° angle with wrist pin axle center line, interlace 180 ° angle of the annular groove locating stud that each road is adjacent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610099266 CN1916448A (en) | 2005-07-25 | 2006-07-25 | Piston ring with no end gap, and piston of containning the piston ring |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520114763.5 | 2005-07-25 | ||
| CN200520114763 | 2005-07-25 | ||
| CN 200610099266 CN1916448A (en) | 2005-07-25 | 2006-07-25 | Piston ring with no end gap, and piston of containning the piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1916448A true CN1916448A (en) | 2007-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610099266 Pending CN1916448A (en) | 2005-07-25 | 2006-07-25 | Piston ring with no end gap, and piston of containning the piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1916448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017195A1 (en) * | 2006-07-25 | 2008-02-14 | Yingjie Yang | A piston ring without end clearance and a piston with said ring |
| CN102235264A (en) * | 2010-04-25 | 2011-11-09 | 杨应捷 | End-clearance-free piston ring provided with positioning groove |
-
2006
- 2006-07-25 CN CN 200610099266 patent/CN1916448A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008017195A1 (en) * | 2006-07-25 | 2008-02-14 | Yingjie Yang | A piston ring without end clearance and a piston with said ring |
| CN102235264A (en) * | 2010-04-25 | 2011-11-09 | 杨应捷 | End-clearance-free piston ring provided with positioning groove |
| CN102235264B (en) * | 2010-04-25 | 2016-02-03 | 杨应捷 | There is the end-clearance-free piston ring of locating slot |
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Open date: 20070221 |