CN102235264A - End-clearance-free piston ring provided with positioning groove - Google Patents
End-clearance-free piston ring provided with positioning groove Download PDFInfo
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- CN102235264A CN102235264A CN2010101694863A CN201010169486A CN102235264A CN 102235264 A CN102235264 A CN 102235264A CN 2010101694863 A CN2010101694863 A CN 2010101694863A CN 201010169486 A CN201010169486 A CN 201010169486A CN 102235264 A CN102235264 A CN 102235264A
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Abstract
The invention discloses a fully-sealed piston ring provided with a positioning groove. The diagonal incision of the piston ring has no end clearance. The outside diameter perimeter is longer than the inside diameter perimeter of a cylinder, and the length of the excess part is equal to the lapped size of ports. A first end-clearance-free piston ring has a barrel surface or a cylindrical surface, and a tangential plane is defined by the intersection point of projection lines of an excircle surface and an upper end surface of an axial cross section of the piston ring, and a diagonal line from a point, delta distance from the projection line of the excircle surface, to the intersection point of projection lines of an inner cylindrical surface and a lower end surface. A second end-clearance-free piston ring is a taper-face ring which consists of an upper taper face and a lower cylindrical surface with the height of theta, and a tangential plane is defined by the intersection point of the projection lines of an outer cylindrical surface and a lower end surface of an axial cross section of the piston ring, and a diagonal line from a point, delta distance from the projection line of the outer cylindrical surface, to the intersection point of projection lines of the inner cylindrical surface and the upper end surface. The diagonal line tangential plane is a plane surface or a cambered surface. Two end heads of the piston ring consist of an upper four-side wedge-shaped edge, a lower triangular edge, an upper triangular edge, a lower four-side wedge-shaped edge, an end head surface and an end shoulder surface respectively. The projection lines of the end head surface and the end shoulder surface are parallel with an axial line at equal distance or parallelly intersect with the axial line on the axial line respectively. A small circular arc positioning groove, tau distance from the end face and is opened at any end of the two end heads.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, air compressor employed hermetically sealed, make the locating slot that prevents adjacent pistons ring counterpart, possess the piston ring of the diagonal cut structure of integrated abrasion compensation, be referred to as the no end gap piston ring of locating slot.
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 all not to have locating slot.Straight flange otch piston ring is most widely used general.It utilizes the close compression ring in two to four roads, and adjacent piston ring interlaces 120 °-180 ° with the straight flange otch on piston, form mazy sealing configuration, reaches close gas effect.The design different according to internal-combustion engine, regular price gasoline machine are the close compression rings of twice, and diesel engine is the close compression rings in two to four roads, specifically select for use the close compression ring in several roads to be made by oneself by each manufacturing enterprise.Its principle is the many more of the highly dense more compression ring setting of compression ratio and compression pressure, and its close gas is good more.Because piston ring countercylinder wall has positive pressure, so the many more surface friction drag of piston ring setting are big more, it is just many more to overcome merit and fuel that surface friction drag consumes.Actual is to reach with consume fuel to prolong effective sealing.Because piston ring is a non-normal ellipse, after cylinder is by piston and piston ring scuffing, loses circularity and post degree, straight flange otch end gap increases, and is accompanied by each adjacent pistons rings cut alignment.Wearing and tearing make piston ring side clearance increase and the inefficacy of close gas, and the close gas inefficacy of counterpart.Cause in the firing chamber that compression pressure reduces, the heat of compression descends, detonation velocity slows down, compressed 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, CO and NO simultaneously
XDeng the clean flammable and harmful gaseous contamination environment of combustion.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.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 port gap 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, and sideshake enters at the bottom of the piston ring groove on ring and the annular groove, scurries out through under shed, enters down ring and crankcase together.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.After cylinder inner wall and the wearing and tearing of piston ring external diameter, can possess integrated abrasion compensation.Can not cause gas leakage, close gas was lost 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 that locating slot is arranged of sealing hermetically sealed diagonal cut tighter, that prevent each road piston ring counterpart is provided.
The object of the present invention is achieved like this: the girth of piston ring grows gap-clearance of piston rings termination overlapping dimension than the girth of cylinder bore.Overlapping dimension adds the size in the required gap of expanding, as the length of otch boss.The otch of piston ring is the diagonal cut structure, be that top piston ring is by the projection line of termination axial cross section along outer garden cylinder or bucket face, begin to the projection line of piston ring inner circle cylinder and the diagonal of lower end surface projection line intersection point near small distance of piston ring upper-end surface projection line crosspoint, cook a tangent plane with this diagonal, making two ends is the otch of complementary overlap joint.The following triangle rib termination of this diagonal structure otch in cylinder shutoff the gap of piston and cylinder wall, wedge shape rib termination, last four limit is overlapped on down on the triangle rib termination, shutoff the gap of time triangle end face and four limit wedge shape rib ends shoulders.Thereby the gas of coming in is leaked in the last sideshake, the upper shed gap that seal up piston ring and piston ring groove, and gas can not be entered down in one piston ring land and the annular groove, and even crankcase, reaches 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, promptly along the external cylindrical surface projection line of piston ring ends axial cross section, small distance of intersection point near the lower end surface projection line begins to the diagonal of upper-end surface and inner cylindrical surface projection line intersection point, cook a tangent plane with this diagonal, making two ends is complementary overlap joint otch.Otch plays the effect that prevents to the firing chamber pump lubricating oils for following four limit wedge shape ribs and last triangular ridges structure.In order to prevent the piston ring counterpart, piston ring is located, in piston groove at the piston ring inner circle cylinder, near driving an anti-rotation locating slot near the termination, at the bottom of the annular groove of piston, inlay a little pin, be used for embedding the anti-rotation locating slot of piston ring, work the positioning action that prevents 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, and ring weares and teares evenly with cylinder wall, makes it to become to possess integrated abrasion compensation, prolongs the working life of internal-combustion engine, saves fuel oil, lubricant oil, reduces the discharging of pollutant tail gas.
Description of drawings
Before explanation, set forth the classification of general piston ring earlier.By materials classification: cast iron, spheroidal graphite cast iron, Chrome carbon steel etc. are arranged, by functional classification: close compression ring and oil ring are arranged, close compression ring divides two classes by structure shape: a class is that the piston ring axial cross section is divided into rectangle, trapezoidal and wedge shape, and another kind of is that outer peripheral surface is divided into cylinder, bucket face and the conical surface.Piston ring with taper face is used to the last ring together in the close compression ring, can select barrel face ring or cylinder ring separately for use and add one again to the close compression ring of twice use bucket face ring capable of being combined and cylinder ring according to design at the close compression ring by piston tip.
Fig. 1 is that the hermetically sealed diagonal cut of the present invention does not have the cylinder of end gap piston ring or the plan view of bucket face (cylinder please be read Figure 14) rectangle piston ring.Define earlier, the plan view dextrorotation is turn 90 degrees, the opening of piston ring the place ahead in the presence of, the termination in diagram opening left side is the left end head, the termination on right side is the right-hand member head.The A-A of cutting line shown in the figure is through the slice location of piston ring right-hand member head by the center of circle, and the A-A sectional view illustrates the position of the local B of amplification of piston ring right-hand member head.On the piston ring inner circle cylinder apart from the termination face
τIf a roundlet arc locating slot 10 is provided with locating stud with the piston ring groove bottom and matches, play the positioning action that prevents that piston ring from rotating.
Fig. 2 is the local B enlarged view of Fig. 1.Point 04 is the projection line of piston ring upper-end surface with the line and the elongation line of point 05, and point 01 is the projection line of piston ring lower end surface with the line and the elongation line of point 06.Diagonal is meant that intersection point 04 from upper-end surface and external cylindrical surface or bucket face projection line is along external cylindrical surface or some small distances of bucket face projection line
δ0 point 03 is cooked a tangent plane to the oblique line of the intersection point 06 of lower end surface and inner cylindrical surface projection line with the diagonal of this oblique line.10 is roundlet arc locating slot.
Fig. 3 is the position that C is amplified in the part of the port of no end gap piston ring bucket face rectangular ring outer below shaft side figure and gap-clearance of piston rings place.
Fig. 4 is the Local C enlarged view of Fig. 3, and the stereochemical structure of right-hand member head and the intersection point label of each shape hand-deliver line are shown. Point 03,04,05,06 line is the termination face of right-hand member head four limit cleat planes, and point 01,02,07 be that the end of right-hand member head triangle projective planum is takeed on face, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.Diagonal cut connects straight line along plane that point 03,06 diagonal is formed or to put the cambered surface of the diagonal composition that 06,07 camber line that forms in inner cylindrical surface and lower end surface is connected along point 03,06 for point 06,07.Present thus inner cylindrical surface, upper-end surface,
δThe external cylindrical surface of width, diagonal cut point 02,03,06,07 plane or cambered surface constitute four limit wedge shape rib convex platforms and put 01,02, the 07 piston ring right-hand member head for planar delta end shoulder face.Point 11,12,13,14, the 17 corresponding one by one end structures that become complementation with the left end head.
Fig. 5 is the position that D is amplified in the part of interior upper shaft mapping of the port of no end gap piston ring bucket face keystone ring and gap-clearance of piston rings place.The upper-end surface of keystone-type piston ring is the conical surface, and the lower end surface is the reverse conical surface.
Fig. 6 is the local D enlarged view of Fig. 5, and the stereochemical structure of left end head and the intersection point label of each shape hand-deliver line are shown. Point 11,12,17 line is the termination face of triangle projective planum, and the line of point 13,14,15,16 is the end shoulder face of four limit cleat planes, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.Diagonal cut connects straight lines along plane that point 12,17 diagonal are formed or to put 16,17 cambered surfaces that form the diagonal compositions that camber line is connected along point 17,12 in inner cylindrical surface and lower end surface for point 16,17.Presenting thus that outer bucket face, lower end surface, diagonal cut point 12,13,16,17 planes or cambered surface constitute the prismatic lower convex platform and put 13,14,15,16 is the left end head that four limit cleat planes ends are takeed on the piston ring of faces, becomes complementary structure with the last four limit wedge shape boss of right-hand member head shown in Figure 4.On the piston ring inner circle cylinder apart from the termination face
τIf a roundlet arc locating slot 10 is provided with locating stud with the piston ring groove bottom and matches, play the positioning action that prevents that piston ring from rotating.
Fig. 7 is the plan view of conical surface rectangle piston ring.The E-E of cutting line shown in the figure is through the position that the right-hand member end surface dissects by the center of circle, and the E-E sectional view illustrates the position of the local F of amplification of piston ring right-hand member head.The periphery of piston ring with taper face be by the conical surface and
θThe cylndrical surface of width is formed.On the piston ring inner circle cylinder apart from the termination face
τIf a roundlet arc locating slot 10 is provided with locating stud with the piston ring groove bottom and matches, play the positioning action that prevents that piston ring from rotating.
Fig. 8 is the local F enlarged view of Fig. 7.Point 21 is projection lines of piston ring lower end surface with the line and the elongation line of point 27, and point 24 is projection lines of piston ring upper-end surface with the line and the elongation line of point 26.Diagonal is meant from lower end surface and external cylindrical surface projection line intersection point 21 along some small distances of external cylindrical surface projection line
δPoint 22 to the oblique line of the intersection point 26 of upper-end surface and inner cylindrical surface projection line, cook a tangent plane with this diagonal, the tangent plane opposite with the diagonal of Fig. 2.
θBe the height of external cylindrical surface,
θMore than or equal to
δ
Fig. 9 is that G is amplified in the port interior below shaft side figure of conical surface rectangular ring and the part of gap-clearance of piston rings place.
Figure 10 is the local G enlarged view of Fig. 9, and the stereochemical structure of left end head and the intersection point label of each shape hand-deliver line are shown. Point 33,34,35 line is the termination face of triangle projective planum, and the line of point 31,32,36,37 is the end shoulder face of four limit cleat planes, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.Diagonal cut connects for point 35,36 that diagonal that straight lines connect along point 33,35 are formed planes or to put 35,36 camber lines that form in inner cylindrical surface and upper-end surface along putting the cambered surface that 33,35 diagonal that are connected are formed.Present the piston ring left end head that male cone (strobilus masculinus), upper-end surface, point 32,33,35,36 planes or cambered surface constitute the prismatic convex platform and put four limit tapered end shoulder faces of 31,32,36,37 lines thus, with four limit wedge shape rib lower convex platforms formation complementary structures of right-hand member head.On the piston ring inner circle cylinder apart from the termination face
τIf a roundlet arc locating slot 10 is provided with locating stud with the piston ring groove bottom and matches, play the positioning action that prevents that piston ring from rotating.
Figure 11 is that H is amplified in the port outer top shaft side figure of conical surface rectangular ring and the part of gap-clearance of piston rings place.
Figure 12 is the local H enlarged view of Figure 11, and the stereochemical structure of right-hand member head and the label of each shape hand-deliver line intersection point are shown. Point 21,22,26,27 line is the termination face of four limit cleat planes, and the line of point 23,24,25 is the end shoulder face of triangle projective planum, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.Diagonal cut is formed the plane or is formed the cambered surface that camber line is formed along the diagonal of putting 22,26 lines to put 25,26 in inner cylindrical surface and upper-end surface along point 22,26 diagonal for point 25,26 connects straight lines.Present thus ring inner cylinder, lower end surface,
δThe external cylindrical surface of width, the tangent plane of selecting 22,23,25,26 planes or cambered surface constitute the piston ring right-hand member head of four limit wedge shape rib lower convex platforms, with corresponding point 31,32,33,34,35,36,37 termination faces of left end head and the complementation of end shoulder face.
θBe the height of external cylindrical surface,
θMore than or equal to
δThe left end head of this right-hand member head and last prismatic boss shown in Figure 10 constitutes the no end gap piston ring of complementary structure.
Figure 13 is that the cylinder rectangle does not have the end gap piston ring and places in the cylinder or the ring gauge termination closes up the plan view of working state.
TBe the size of piston ring ends overlap joint, I-I cutting line symmetry is by the size of termination overlap joint
T, 40 is ring gauge or cylinder bucket, 10 for being located at the roundlet arc locating slot of inner cylindrical surface.The I-I sectional view illustrates the local J of amplification in piston ring ends lap-joint.
Figure 14 is the enlarged view of Figure 13 local J.The head of left end shown in the figure is last four limit wedge shape ribs, and the right-hand member head is the sealing configuration of following triangular ridges.Point 11,12,17 is the subpoint of left end head end women's head-ornaments intersection point, and point 01,02,07 is the subpoint of right-hand member head end shoulder hand-deliver point in the bracket.
Figure 15 is the outer top of the port shaft side figure that barrel face rectangle does not have end gap piston ring working state.The local K of amplification is shown in piston ring ends lap-joint.
Figure 16 is the enlarged view of the local K of Figure 15, and termination overlap joint size is shown
TEnd face and the gap of holding shoulder with the termination
sThe length of boss equals T+s.The distance of roundlet arc locating slot 10 and termination face
τ
Figure 17 is the outer below of the port shaft side figure of conical surface rectangle piston ring working state.The local L of amplification is shown in piston ring ends lap-joint.
Figure 18 is the enlarged view of the local L of Figure 17, and termination overlap joint size is shown
TEnd face and the gap of holding shoulder with the termination
sThe cylinder height
θThe distance of roundlet arc locating slot 10 and end face
τ
Embodiment
The contrast of Fig. 1, Fig. 2, Figure 13, Figure 14, Figure 15 and Figure 16, present piston ring by nature to being placed in the cylinder or making the working state of opening closure in the ring gauge.Show the no end gap piston ring two ends lap length of hermetically sealed diagonal cut
T, required clearance for expansion is heated
s, at the piston ring inner circle cylinder apart from its termination face
τIf a roundlet arc locating slot 10, or at the other end apart from its termination face
τIf a roundlet arc locating slot 10 as shown in figure 18.Hatching I-I symmetry is through lap length
TWith the piston ring axle center.Lap length
TAdd the clearance for expansion
sBe the size of end shoulder face to termination face boss.Be meant from putting 04 as Fig. 2, diagonal shown in Figure 14 along some small distances of external cylindrical surface projection line
δPoint 03 to point 06 oblique line, do diagonal cut with this oblique line.The following triangular ridges boss shutoff of no end gap piston ring left end head shown in Figure 14 gap between piston and the cylinder diameter direction, the last four limit wedge shape rib boss shutoff of right-hand member head the gap between left end head end women's head-ornaments and the right-hand member head end shoulder face, shutoff the gas leakage of firing chamber to the crankcase direction.Constituting hermetically sealed diagonal cut does not have the design feature of end gap integrated abrasion compensation that piston ring possesses.In the process that cylinder inner cylinder and piston ring excircle face wear and tear mutually, as long as
TThe sealability of＞0 its piston ring remains the optimum state, and the sealing characteristics of this technology just enters the mounting technology state of prior art straight flange otch piston ring when T=0.Four limit wedge shape rib boss are to be length by point 02 to point 03 on the different rectangle of right-hand member head shown in Fig. 4 representative, the trapezoidal and keystone ring, and width is
δThe outer drum face or upper-end surface, the inner cylindrical surface of point 05,06, the point 06,07 of cylinder, point 04,05 connect straight line along plane that point 06,03 diagonal constitutes or to put the diagonal cut formation of 06,07 camber line that forms in inner cylindrical surface and lower end surface along point 06,03 cambered surface that diagonal is formed that is connected.The end shoulder face of right-hand member head is formed on the plane of point 01,02,07 line, and four limit cleat planes of point 03,04,05,06 line are formed the termination face of right-hand member heads, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.The triangular ridges boss is by the length of point 12 to point 13 under the different rectangle of left end head shown in Fig. 6 representative, the trapezoidal and keystone ring, width for point 11 to the lower end surface of the outer drum face of point 12 or cylinder, point 11,17 with form camber line along the diagonal cut formation of putting 17, the 12 diagonal composition cambered surfaces that are connected along plane that point 17,12 diagonal constitute or to put 16,17 in interior cylinder and lower end surface to put 12,13,16,17 lines.Four limit cleat planes of point 13,14,15,16 lines are formed the end shoulder face of left end head, the triangle projective planum of point 11,12,17 lines is formed the termination face of left end head, the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively, and left and right termination is complementary fully.With piston ring ends is last four limit wedge shape rib boss and the following gas leakage of following triangular ridges boss structure sealed combustion chamber to the crankcase direction.
The contrast of Fig. 7, Fig. 8, Figure 10, Figure 12 and Figure 18 presents that conical surface rectangle diagonal cut does not have end gap gap-clearance of piston rings nature and at cylinder bucket inner opening closed state.
τBe the distance of locating slot and end face, the two ends lap length
T, required clearance for expansion is heated
sBy the dissecing of axle center, conical surface rectangle, diagonal trapezoidal, the no end gap piston ring of wedge shape (ladder, wedge shape are not mapped) are that intersection point 21 from external cylindrical surface projection line and lower end surface projection line is along one of external cylindrical surface to hatching E-E as shown in Figure 8 through the termination of right-hand member head face
δ Small distance point 22 is to the oblique line of point 26.Four limit wedge shape rib boss are to be length and highly to be to point 23 by point 22 under the different rectangle of right-hand member head shown in Figure 12 representative, the trapezoidal and keystone ring
δExternal cylindrical surface, select 21 with select 27 lower end surface, select 27,26,25 inner cylindrical surface and diagonal cut for select 25,26 is connected straight line along select plane that 26,22 diagonal form or with select 25,26 at the camber lines of inner cylindrical surface and upper-end surface formation along the tangent plane formation of selecting 26, the 22 diagonal composition cambered surfaces that are connected.The end shoulder face of right-hand member head is formed on the plane of point 23,24,25 lines, and point 21,22,26,27 is formed the termination face of right-hand member heads, and the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.Figure 10 illustrate the different rectangle of left end head representative, trapezoidal and the wedge shape conical surface do not have triangular ridges boss on the end gap piston ring by point 32 to point 33 for the upper-end surface of the cylndrical surface of length, point 34,35,36 with put 35,36 and be connected straight line and form the plane or form the diagonal cut of cambered surface and constitute along putting 33,35 diagonal that are connected to put 35,36 camber lines that form in inner cylindrical surface and upper-end surface along putting 35,33 diagonal.Four limit cleat planes of point 31,32,36,37 lines are formed the end shoulder face of left end head, the triangle projective planum of point 33,34,35 lines is formed the termination face of left end head, the projection line on two planes and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively, and left and right termination is complementary fully.With piston ring ends is that last triangular ridges boss and following four limit wedge shape rib boss structure pressurized crankcases are scurried oil to the last gas blowby of firing chamber direction.Figure 18 illustrates the outer conical surface of piston ring with taper face and is made up of the conical surface and cylinder, and the cylinder height is
θMore than or equal to
δ
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 (7)
1. no end gap piston ring that locating slot is arranged, it is characterized in that: the otch of piston ring is the structure of diagonal cut, and is provided with the locating slot that prevents the piston ring rotation, is used with anti-rotation locating stud at the bottom of the annular groove of piston:
Wherein the structure of the first road cylinder and bucket face piston ring diagonal cut be the upper-end surface projection line with the intersection point 04 of external cylindrical surface or bucket face projection line along external cylindrical surface or barrel some small distances of face projection line
δPoint 03 to the oblique line of lower end surface and inner cylindrical surface projection line intersection point 06, do the complementary two ends that diagonal cut constitutes piston ring with this oblique line, the structure of the second road piston ring with taper face diagonal cut is opposite with the otch of top piston ring, and promptly diagonal is meant from lower end surface projection line and external cylindrical surface projection line intersection point 21 along some small distances of external cylindrical surface projection line
δPoint 22 to the oblique line of upper-end surface with the intersection point 26 of inner cylindrical surface projection line, do the complementary two ends of diagonal cut formation piston ring with this oblique line.
2. the no end gap piston ring that locating slot is arranged as claimed in claim 1 is characterized in that: the first road cylinder or bucket face piston ring diagonal structure are divided into the two ends of last four limit wedge shape rib boss and the complementation of following triangular ridges boss by diagonal cut.
3. the no end gap piston ring that locating slot is arranged as claimed in claim 1 is characterized in that: the second road piston ring with taper face diagonal structure is divided into the two ends of triangular ridges boss and following four limit wedge shape rib boss complementations by diagonal cut.
4. as claim 2 and the 3 described no end gap piston rings that locating slot is arranged, it is characterized in that: the first road cylinder or bucket face piston ring right-hand member head diagonal cut are point 06,07 connects straight line along point 03, the plane that 06 diagonal is formed or to put 06,07 camber line that forms in inner cylindrical surface and lower end surface is along point 03, the cambered surface that 06 diagonal that connects is formed is point 16 with left end head diagonal cut, 17 connect straight line along point 12, the plane that 17 diagonal are formed or to put 16,17 form camber line along point 17 in inner cylindrical surface and lower end surface, the cambered surface that 12 diagonal that connect are formed is corresponding; The second road piston ring with taper face right-hand member head diagonal cut connects for point 35,36 that diagonal that straight lines connect along point 33,35 are formed planes or putting the cambered surface that 35,36 camber lines that form in inner cylindrical surface and upper-end surface are formed along point 33,35 diagonal that are connected, forms planes or corresponding along putting the cambered surface that 33,35 diagonal that are connected are formed at the camber lines of inner cylindrical surface and upper-end surface formation with 35,36 with left end head diagonal cut for point 35,36 connects diagonal that straight lines connect along point 33,35.
5. the no end gap piston ring that locating slot is arranged as claimed in claim 1 is characterized in that: the projection line of the termination face of no end gap piston ring two ends and end shoulder face and piston ring axis are equidistant parallel or meet at axis with parallel axes respectively.
6. the no end gap piston ring that locating slot is arranged as claimed in claim 1 is characterized in that: the conical surface of the no end gap piston ring second road piston ring with taper face is by the conical surface and highly is
θCylinder constitute the cylinder height
θMore than or equal to
δ
7. the no end gap piston ring that locating slot is arranged as claimed in claim 1 is characterized in that: at the inner cylindrical surface of no end gap piston ring apart from any end face of two ends
τA roundlet arc locating slot 10 is set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010169486.3A CN102235264B (en) | 2010-04-25 | 2010-04-25 | There is the end-clearance-free piston ring of locating slot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010169486.3A CN102235264B (en) | 2010-04-25 | 2010-04-25 | There is the end-clearance-free piston ring of locating slot |
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| CN102235264A true CN102235264A (en) | 2011-11-09 |
| CN102235264B CN102235264B (en) | 2016-02-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065129A (en) * | 1991-03-18 | 1992-10-07 | 欧阳而顺 | The gapless piston ring of inclined-plane lapping ring end |
| US5564699A (en) * | 1995-02-15 | 1996-10-15 | Caterpillar Inc. | Side and gap sealed oil ring |
| CN2338497Y (en) * | 1997-02-21 | 1999-09-15 | 李明武 | Leakage-free piston ring and matched piston thereof |
| JPH11325259A (en) * | 1998-05-19 | 1999-11-26 | Nok Corp | Seal ring |
| CN1916448A (en) * | 2005-07-25 | 2007-02-21 | 杨应捷 | Piston ring with no end gap, and piston of containning the piston ring |
-
2010
- 2010-04-25 CN CN201010169486.3A patent/CN102235264B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065129A (en) * | 1991-03-18 | 1992-10-07 | 欧阳而顺 | The gapless piston ring of inclined-plane lapping ring end |
| US5564699A (en) * | 1995-02-15 | 1996-10-15 | Caterpillar Inc. | Side and gap sealed oil ring |
| CN2338497Y (en) * | 1997-02-21 | 1999-09-15 | 李明武 | Leakage-free piston ring and matched piston thereof |
| JPH11325259A (en) * | 1998-05-19 | 1999-11-26 | Nok Corp | Seal ring |
| CN1916448A (en) * | 2005-07-25 | 2007-02-21 | 杨应捷 | Piston ring with no end gap, and piston of containning the piston ring |
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| Publication number | Publication date |
|---|---|
| CN102235264B (en) | 2016-02-03 |
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