CN110145598A - Built-up piston top bank ring, piston assembly, internal combustion engine and encapsulating method - Google Patents
Built-up piston top bank ring, piston assembly, internal combustion engine and encapsulating method Download PDFInfo
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- CN110145598A CN110145598A CN201910475849.7A CN201910475849A CN110145598A CN 110145598 A CN110145598 A CN 110145598A CN 201910475849 A CN201910475849 A CN 201910475849A CN 110145598 A CN110145598 A CN 110145598A
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- piston ring
- top bank
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 16
- 239000003921 oil Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 239000010721 machine oil Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 239000006071 cream Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- ULEBESPCVWBNIF-BYPYZUCNSA-N L-arginine amide Chemical compound NC(=O)[C@@H](N)CCCNC(N)=N ULEBESPCVWBNIF-BYPYZUCNSA-N 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/14—Joint-closures
- F16J9/16—Joint-closures obtained by stacking of rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of built-up piston top bank ring, piston assembly, internal combustion engine and encapsulating method.The built-up piston top bank ring includes the first piston ring and second piston ring being equipped with；The longitudinal section of first piston ring is stairstepping, and cascaded surface is located at the inner circumferential side of first piston ring；The longitudinal section of second piston ring is the stairstepping matched with the longitudinal section of first piston ring, and cascaded surface is located at the outer circumferential sides of second piston ring；The axially facing surface of first piston ring and second piston ring is sloped contact surface；First piston ring upper surface excircle is equipped with the piston top bank of landing low emission effect.Piston top bank can reduce depth pistion, and then reduce combustion chamber clearance volume；Piston top bank can act on rapidly upper side and medial surface in working stroke, gaseous-pressure, be adjacent to the downside of ring with slot downside, periphery and cylinder wall, be conducive to seal and reduce tail gas HC discharge amount.
Description
Technical field
The present invention relates to gas engine part design and manufacturing fields, and in particular to a kind of built-up piston top bank ring, work
Fill in assembly, internal combustion engine and encapsulating method.
Background technique
Piston ring is the important component in combustion chambers of internal combustion engines, a kind of elastic metallic ring being assemblied in inside piston ring groove,
By its own elastic force and gas in the jar pressure, between cylinder wall outer circle and surface of piston ring groove formed sealing, be interior
The core component of combustion engine combustion chamber.Current piston ring mainly has monomer-type and two kinds of combined type.It usually requires in a piston
The upper road installation 3-4 piston ring.
The main function of piston ring mainly includes sealing function, Controlling oil effect, heat transfer effect and support four effect greatly, directly
Influence performance, functional reliability, specific oil consumption and the service life of engine.Wherein piston ring is directly born when pistons work
The impact of high-temperature high-pressure air flow, thinks according to authentic data, and the 60%-75% of the heat of engine piston group sucking is dissipated by annulus portion
Hair.In three piston rings, the ratio of first of ring sealing gas about 85%, while also to complete the oil-control work of 10-20%.
The basic principle of multipiece ring be using the compressing force and explosive force generated in engine cylinder, make group cyclization with
It is dynamic, it compresses, unclamp with piston moment.Reach shutting off, depressurizing, delaying and let out between major and minor ring in group cyclization, finally plays moment
Sealing function, while ensureing that instantaneous burst stroke terminates.Revolving speed is higher, and outburst stroke moment is shorter, and leakage rate is fewer.
Existing Piston ring design haves the defects that as follows:
(1) existing piston ring is mostly inevitably there is leakage problem in single piston inscription of loop.And in order to generate
Outer hoop tension, in addition to being equipped with through-type notch in the part of circumference to expansion when piston installation, therefore inevitable
There is take the problem of mouthful gas leakage and alter oily problem；
(2) it is heated between existing monomer-type piston ring top and bottom different, is easy to cause annular strain and seal failure；
(3) existing multipiece ring patent does not think better of the sealing problem at two loop interfaces mostly, causes
Air-flow can greatly reduce sealing effect by the gap leakage at two loop interfaces；
(4) lubricating difficulties when piston runs to cylinder sleeve top, not only increase resistance, also add the mill of piston and cylinder sleeve
Loss rate reduces the service life of piston ring.
Summary of the invention
In view of this, one of main object of the present invention is to propose a kind of built-up piston top bank ring, piston assembly, interior
Combustion engine and encapsulating method, at least be partially solved at least one of above-mentioned technical problem.
To achieve the goals above, as one aspect of the present invention, a kind of built-up piston top bank ring is provided, including
The first piston ring and second piston ring being equipped with；
The longitudinal section of first piston ring is stairstepping, and cascaded surface is located at the inner circumferential side of first piston ring；
The longitudinal section of second piston ring is the stairstepping matched with the longitudinal section of first piston ring, and cascaded surface is located at the
The outer circumferential sides of two piston rings；
The axially facing surface of first piston ring and second piston ring is sloped contact surface；
First piston ring upper surface excircle is equipped with the piston top bank of landing low emission effect.
As another aspect of the present invention, a kind of piston assembly is provided, includes described in the piston assembly
Built-up piston top bank ring.
As it is still another aspect of the present invention to provide a kind of internal combustion engine, the internal combustion engine is interior including the combined type
Piston top bank ring.
As another aspect of the invention, a kind of encapsulating method of internal combustion engine is provided, using the combination
Formula piston top bank ring is sealed movable piston.
Based on the above-mentioned technical proposal it is found that built-up piston top bank ring, piston assembly, internal combustion engine and sealing side of the invention
Method one of at least has the advantage that compared with the existing technology:
1, ring (i.e. piston top bank) can reduce depth pistion in L-type, and then reduce combustion chamber clearance volume；
2, ring in working stroke, gaseous-pressure can act on rapidly upper side and medial surface in L-type, make the downside of ring with
Slot downside, periphery and cylinder wall are adjacent to, and are conducive to seal and reduce tail gas HC discharge amount；
3, it solves problem on deformation caused by the uneven heating of piston ring top and the bottom, improves service life and the sealing effect of piston ring
Fruit；
4, existing built-up piston ring design is compared, this piston ring strengthens the connection between upper and lower two ring, substantially mentions
Leakproofness is risen: by the elastic force in frosted taper-face contact face, the positive distortion torque of upper ring (i.e. first piston ring) and two interannulars
The axial connection for strengthening two rings, alleviates the gas leakage of two anchor ring joints；Two interannulars positioning simultaneously is simple, easy to process；
5, what is do not led directly to takes mouth, enhances leakproofness, can thoroughly block burning gases, so that it cannot be introduced into crankshaft
Case improves power, reduces oil consumption；
6, the temperature of crankcase can be reduced indirectly, to increase the lubrication viscosity of machine oil, improves lubricant effect；
7, the finely ground particles that can avoid in combustion product enter crankcase, slow down carbon distribution problem, increase machine oil
Service life；
8, the present invention is compared to monomer-type piston ring, and there are three air seal faces, while there is also " labyrinth effects between sealing surface
Answer ", the sealing effect of multiple tracks ring can be played with one of piston ring；
9, upper piston ring of the invention uses inner chamfer structure, reduces machine oil oil consumption, and provide for ring in working stage
One additional dynamic behaviour, reduces friction loss while lift-off seal effect, improves making for combustion-chamber assembly
Use the service life；
10, the present invention is eccentric barrel face structure by upper ring, and lower ring (i.e. second piston ring) is cone structure, improves ring
Cloth oil and frizing ability reduce the consumption of machine oil, reduce discharge while reducing frictional resistance；
11, there is between upper and lower ring and cylinder sleeve decompression shoe cream room in structure of the invention, can be effectively improved piston ring and stop upper
Lubrication at point, while preventing from altering oil, reduce lubrication oil consumption；And air leakage and consumption of lubricating oil are reduced by oil sealing,
Improve the overall performance of engine；
12, the road 2-3 piston ring is only arranged in the number that can reduce setting piston ring on piston, reduces engine combustion
Indoor friction loss and production cost；Or under the premise of not increasing piston circuit number, the sealing of piston ring is substantially improved
Performance.
Detailed description of the invention
Fig. 1 is the schematic cross-section of built-up piston top bank ring and burning chamber assembly in the embodiment of the present invention；
Fig. 2 is bank ring upper and lower ring assembly the schematic diagram of the section structure in built-up piston top in the embodiment of the present invention；
Fig. 3 is that ring assembles schematic perspective view to built-up piston top bank ring up and down in the embodiment of the present invention；
Fig. 4 is the schematic perspective view of ring on the bank ring of built-up piston top in the embodiment of the present invention；
Fig. 5 is the schematic diagram of the section structure of ring on the bank ring of built-up piston top in the embodiment of the present invention；
Fig. 6 is the schematic perspective view of ring under the bank ring of built-up piston top in the embodiment of the present invention；
Fig. 7 is the schematic diagram of the section structure of ring under the bank ring of built-up piston top in the embodiment of the present invention；
Fig. 8 is that ring takes the structural schematic diagram of mouth Yu lower ring locating piece on the bank ring of built-up piston top in the embodiment of the present invention；
Fig. 9 is that ring takes the structural schematic diagram of mouth Yu upper ring locating piece under the bank ring of built-up piston top in the embodiment of the present invention.
Description of symbols:
1- upper piston ring；2- lower piston ring；3- piston；4- cylinder jacket；5- cone match face；6- shoe cream room；7- annular groove；8-
On take mouth；Mouth is taken under 9-.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
Since the position that product of the present invention is put can arbitrarily change, heretofore described "upper", "lower",
The nouns of locality such as "left", "right" only indicate opposite positional relationship, rather than limit absolute positional relationship.
Leakage problem intrinsic existing for mouth is taken present invention mainly solves internal-combustion engine piston ring, upper and lower piston ring surface is heated
Problem on deformation caused by unevenness；The close of multiple tracks ring can be played by two panels piston ring under the premise of not increasing piston circuit number
Effect is sealed, the sealing performance of piston ring is substantially improved；Improve the problem of insufficient lubrication with cylinder sleeve top is altered on machine oil simultaneously.Phase
Than existing built-up piston ring design, leakproofness is greatly improved: by the positive twisted effect of upper piston ring and two interannulars
Elastic force realization fits closely, and there is " labyrinth " effect, significantly reduces the gas leakage of two anchor ring joints；Two interannulars positioning simultaneously
Simply, easy to process.
The dynamic property of internal combustion engine can be improved using this piston ring, reduce HC discharge index and rate of lubricating oil consumption, enhancing
Heat dissipation effect, while the wear rate of piston ring is reduced, extend the service life of ring.In particular improve the cold start-up of engine
Performance and idling performance.The road number of setting piston ring can be reduced, or under the premise of not increasing piston circuit number, is substantially mentioned
Rise the sealing performance of piston ring.
Specifically, the invention discloses a kind of built-up piston top bank rings, including the first piston ring being equipped with and
Two piston rings；
The longitudinal section of first piston ring is stairstepping, and cascaded surface is located at the inner circumferential side of first piston ring；
The longitudinal section of second piston ring is the stairstepping matched with the longitudinal section of first piston ring, and cascaded surface is located at the
The outer circumferential sides of two piston rings；
The axially facing surface of first piston ring and second piston ring is sloped contact surface；
First piston ring upper surface excircle is equipped with the piston top bank of landing low emission effect.
Wherein, the first piston ring is L shape cylinder ring；
Wherein, the height of the piston top bank is greater than the piston groove for ring installation；
Wherein, the outer circle of the piston top bank is the introversion conical surface；
Wherein, the taper of the outer circle introversion conical surface of the piston top bank is 15-75 degree, is, for example, 45 degree.
Wherein, annular groove is equipped at the top of the first piston ring inner headed face；
Wherein, the thermal expansion coefficient of the first piston ring is less than the thermal expansion coefficient of second piston ring.
Wherein, anchor ring is the introversion conical surface, the excircle upper ring surface of first piston ring under the inner periphery of the first piston ring
For bucket face；
The excircle upper ring surface of the second piston ring is that anchor ring is the introversion conical surface under the flare conical surface, excircle；
Wherein, the introversion conical surface, the flare conical surface taper be 15-75 degree, be, for example, 45 degree, the introversion conical surface,
The taper of flare conical surface complementary angle each other；
Wherein, the conical surface surface is handled by frosted；
Wherein, the first piston ring and second piston ring outer circle are in assembly and cylinder jacket in circumferencial direction is equipped with oil storage
Chamber.
Wherein, the first piston ring is located above second piston ring.
Wherein, the first piston ring is equipped with first and takes mouth, takes mouth with first on second piston ring and is correspondingly provided with second
Limited block；
The second piston ring is equipped with second and takes mouth, takes mouth with second on first piston ring and is correspondingly provided with the first limit
Block；
Wherein, described first to take mouth and the second angle for taking between mouth be 180 degree；
Wherein, the first piston ring, which is positive to distort, is inverted stairstepping；
Wherein, the second piston ring is that negative twist is inverted stairstepping.
Wherein, the radial width and axial height of the first piston loop order tread and lower piston loop order tread are equal；
Wherein, the bucket face axis of the first piston ring is below central axes；
Wherein, the radial width of the contact surface lower end surface of the first piston ring is the radial direction of the upper surface of first piston ring
The half of width；
Wherein, the radial width of the contact surface upper surface of the second piston ring is the radial direction of the lower end surface of second piston ring
The half of width；
Wherein, the lower section axial height of the ladder-like contact surface of the first piston ring is the half of upper section；
Wherein, the lower section axial height of the ladder-like contact surface of the second piston ring is the half of upper section.
It include the built-up piston top bank the invention also discloses a kind of piston assembly, in the piston assembly
Ring.
It include the built-up piston top bank ring in the internal combustion engine the invention also discloses a kind of internal combustion engine.
The invention also discloses a kind of encapsulating method of internal combustion engine, using the built-up piston top bank ring come pair
Movable piston is sealed.
In an embodiment of the invention, the present invention is for example, by using following technical solution:
The invention discloses a kind of built-up piston top bank ring design suitable for internal-combustion engine piston ring top bank ring.It is specific and
Speech, includes upper piston ring (i.e. first piston ring) and lower piston ring (i.e. second piston ring).It is characterized by: the upper piston
Ring, which is positive, distorts L-type eccentric barrel face ring, and section is inverted steps shape；The lower piston ring is taper-face ring, and section is positive stairstepping；It is living
What plug ring assembly was not led directly to axially takes mouth；Upper and lower two-piston ring can also select different materials according to different demands.
In yet another embodiment of the present invention, the present invention is for example, by using following technical solution: the invention discloses one
Kind is suitable for the built-up piston top bank ring of internal combustion engine, includes upper piston ring and lower piston ring, the upper piston ring is under
The axial restraint of piston ring is flexibly connected by two ring elastic force and chocking construction cooperation；The upper piston ring is equipped with the first limit
Block, the lower piston ring also are provided with the second limited block, and limited block (i.e. the first limited block and the second limit of two-piston ring
Block) all with to side ring take mouth (i.e. second, which takes mouth and first, takes mouth) cooperatively form it is circumferentially fixed.
Wherein, the upper piston ring is positive twist type ring, is provided with ladder-like annular groove in inner circle upper surface；Section is to be inverted rank
Ladder type, periphery are the L-type structure in eccentric barrel face.
Wherein, the lower piston ring section is step type, and periphery is cone structure.
Wherein, the upper piston ring and lower piston ring opening position keep mutually staggering and at 180 degree.
Wherein, the upper piston ring and lower piston loop interface are taper in the mutually remaining fitness conical surface, and contact surface table
Do frosted processing in face.
In another embodiment of the invention, the present invention is for example, by using following technical solution:
It is an object of that present invention to provide one kind to have high leakproofness, high life, while having both the excellent oilcloth oil ability of scraping
Piston top bank ring may be implemented the height closing of cylinder inner combustion chamber, reduce tail gas HC and discharge, the decline of solution engine power,
The problem of consumption of lubricating oil height, cylinder jacket top lubricating difficulties, the service life of piston ring is improved, while reducing gas in the jar to machine
The pollution of oil and the wear rate of inner body, extend the service life of machine oil and part, improve the overall reliability of internal combustion engine
And working life.
In order to realize above-mentioned technical effect, the invention discloses a kind of biplate built-up piston top bank ring, it is designed as up and down
The two-piece type structure of piston ring cooperation.
The composite structure of upper and lower piston ring: the contact surface of two-piston ring is mutually matched sloped contact surface, the upper piston
The main body section of ring be inverted stairstepping, the outer ring face Mian Weitong, inner headed face upper section ring open it is fluted, lower section be 15-75 degree, it is excellent
It is selected as 45 degree of the introversion conical surface；The main body section of the lower piston ring, which is positive, sets step type, the ladder-like upper section of periphery be with it is upper
Mutually the remaining taper cooperated is 15-75 degree in piston ring inner circle face, and preferably 45 degree of the flare conical surface, ladder-like lower section is bucket face；Two
Piston ring excircle and cylinder sleeve can store piston downlink in the process from cylinder sleeve in circumferencial direction one cavity (i.e. shoe cream room) of formation
The scraping effect on top similarly serves to favor piston stroking upward process cloth oil, to play the role of lubrication and sealing.Two-piston ring uses ring
On limited block and opposite side ring take mouth cooperation.
Wherein, the piston ring up and down is fitted closely by the elastic force and taper fit face of ring, the opening not led directly to, together
When by multi-layer sealed formation " labyrinth " effect of ladder-like contact surface, enhance sealing effect；
Wherein, the contact surface of the piston ring up and down is handled using surface frosted, to guarantee two-piston ring in the course of work
In close axial connection；
Wherein, the upper piston ring is L-type ring, and L-arm should ensure that higher than piston ring groove, in expansion stroke, L-arm with
Piston top flushes；Wherein, contact surface the 15-75 degree, preferably 45 degree of taper each other of the piston ring up and down, while using table
Face frosted processing, to guarantee two-piston ring being tightly engaged into during the work time；
Wherein, upper ring periphery is eccentric barrel face structure, and bucket face axis is below central axes；
Wherein, the radial width of the ladder-like contact surface of piston ring up and down is equal；
Wherein, the axial height of the ladder-like contact surface of piston ring up and down is equal.
Wherein, the ladder axial height of the lower piston ring is equal；
Wherein, what the first of the upper piston ring took mouth and the lower piston ring second takes and sets between mouth in being staggered 180 °
It sets；
Wherein, upper piston ring material need to be surface-treated, and upper and lower two-piston ring can also select not according to different demands
Same material.
The present invention is further described in detail combined with specific embodiments below.
As shown in figs 1-9, the present invention can be implemented as follows, a kind of multipiece ring assembly, including be installed on
Upper piston ring 1 and lower piston ring 2 on piston 3, the outside of the piston 3 are cylinder jacket 4, and the upper piston ring 1 is equipped with upper
Take mouth 8, lower piston ring 2, which is equipped with down, takes mouth 9, and on take mouth 8 and under take between mouth 9 in dislocation assembly；The upper piston ring 1 is cut
Face is to be inverted step type, and cascaded surface is located at the inner circumferential side of upper piston ring 1；The section of the lower piston ring 2, which is positive, sets stairstepping,
Cascaded surface is located at the outer circumferential sides of lower piston ring 2；1 cascaded surface of upper piston ring is matched with the cascaded surface of lower piston ring 2, assembly combination
Complete multipiece ring.
1 surface of upper piston ring need to be surface-treated；If upper and lower piston ring uses different materials, 1 material of upper piston ring
The thermalexpansioncoefficientα 1 of selection should be smaller than the thermalexpansioncoefficientα 2 that the lower piston ring material selects.
The ladder-like contact surface of inversion of the upper piston ring 1 includes the upper surface of upper piston ring 1 and the lower end of upper piston ring 1
Face, the ladder-like contact surface of the lower piston ring 2 include 2 lower end surface of 2 upper surface of lower piston ring and lower piston ring.
The ladder-like contact surface upper surface of the upper piston ring 1 is between the ladder-like contact surface lower end surface of upper piston ring 1
Distance is equal to the ladder-like contact surface upper surface of upper piston ring 1 to the distance on the ring top of upper piston ring 1；The upper piston ring 1 connects
The radial width of contacting surface lower end surface is the half of the radial width of the upper surface of upper piston ring 1.Mirror image, the lower piston
The ladder-like contact surface upper surface of ring 2 is equal to 2 rank of lower piston ring to the distance between the ladder-like contact surface lower end surface of upper piston ring 1
Distance of the scalariform contact surface lower end surface to 2 ring bottom of lower piston ring；The radial width of the contact surface upper surface of the lower piston ring 2 is
The half of the radial width of the lower end surface of lower piston ring 2.
The upper piston ring 1 is assemblied on the cascaded surface of lower piston ring 2, the ladder-like contact surface upper surface of lower piston ring 2
It coincides with the ladder upper surface of the upper piston ring 1.
Wherein, the cone match face 5 is 15-75 degree, preferably 45 degree of the conical surface, and conical surface surface is done at frosted
Reason.Upper and lower piston ring realizes the axial tight of upper piston ring 1 and lower piston ring 2 by the elastic force of frosted cone match face 5 and two rings
Close connection.
Wherein, the cascaded surface on the upper piston ring 1 is radially taking mouthful opposite side equipped with limited block, the lower piston
Ring 2 is equipped with the limited block taking mouth and matching with the upper piston ring 1 on the ladder that ladder-like periphery takes mouthful opposite side.Respectively
The limited block is assembled to taking in mouth to side ring, for limiting the relative rotation between upper piston ring 1 and lower piston ring 2,
To keep opening and the taking for lower piston ring 2 of upper piston ring 1 to be assemblied in the piston 3 in 180 ° of dislocation of state between mouth
In.
Wherein, it is provided with annular groove 7 at the top of 1 inner headed face of upper piston ring, so that whole road ring produces the effect just distorted, do not had
The working hour of airload, only periphery lower seamed edge are contacted with cylinder wall, at this time inner headed face lower seamed edge respectively with lower piston
The going up or down stairway face contact of ring.
Wherein, the ladder-like lower periphery of lower piston ring 2 forms a decompression shoe cream room between the conical surface, with cylinder jacket.
Wherein, the upper piston ring 1 is L-type ring, and L-arm should ensure that higher than piston ring groove, in expansion stroke, L shape
Arm should be flushed with piston top；Particular embodiments described above carries out the purpose of the present invention, technical scheme and beneficial effects
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (10)
1. a kind of built-up piston top bank ring, including the first piston ring and second piston ring being equipped with；
The longitudinal section of first piston ring is stairstepping, and cascaded surface is located at the inner circumferential side of first piston ring；
The longitudinal section of second piston ring is the stairstepping matched with the longitudinal section of first piston ring, and it is living that cascaded surface is located at second
The outer circumferential sides of plug ring；
The axially facing surface of first piston ring and second piston ring is sloped contact surface；
First piston ring upper surface excircle is equipped with the piston top bank of landing low emission effect.
2. built-up piston top bank ring according to claim 1, it is characterised in that:
The first piston ring is L shape cylinder ring；
Preferably, the height of the piston top bank is greater than the piston groove for ring installation；
Preferably, the outer circle of the piston top bank is the introversion conical surface；
As further preferred, the taper of the outer circle introversion conical surface of the piston top bank is 15-75 degree, preferably 45 degree.
3. built-up piston top bank ring according to claim 1, it is characterised in that:
Annular groove is equipped at the top of the first piston ring inner headed face；
Preferably, the thermal expansion coefficient of the first piston ring is less than the thermal expansion coefficient of second piston ring.
4. built-up piston top bank ring according to claim 1, it is characterised in that:
Anchor ring is the introversion conical surface under the inner periphery of the first piston ring, and the excircle upper ring surface of first piston ring is bucket face；
The excircle upper ring surface of the second piston ring is that anchor ring is the introversion conical surface under the flare conical surface, excircle；
It is the introversion conical surface, outer preferably, the taper of the introversion conical surface, the flare conical surface is 15-75 degree, preferably 45 degree
Incline the taper complementary angle each other of the conical surface；
Preferably, the conical surface surface is handled by frosted；
Preferably, the first piston ring and second piston ring outer circle are in assembly and cylinder jacket in circumferencial direction is equipped with oil storage
Chamber.
5. built-up piston top bank ring according to claim 1, it is characterised in that:
The first piston ring is located above second piston ring.
6. built-up piston top bank ring according to claim 1, it is characterised in that:
The first piston ring is equipped with first and takes mouth, takes mouth with first on second piston ring and is correspondingly provided with the second limited block；
The second piston ring is equipped with second and takes mouth, takes mouth with second on first piston ring and is correspondingly provided with the first limited block；
Preferably, described first to take mouth and the second angle for taking between mouth be 180 degree；
Preferably, the first piston ring is positive, stairstepping is inverted in distortion；
Preferably, the second piston ring is that negative twist is inverted stairstepping.
7. built-up piston top bank ring according to claim 1, it is characterised in that:
The radial width and axial height of the first piston loop order tread and lower piston loop order tread are equal；
Preferably, the bucket face axis of the first piston ring is below central axes；
Preferably, the radial width of the contact surface lower end surface of the first piston ring is the radial direction of the upper surface of first piston ring
The half of width；
Preferably, the radial width of the contact surface upper surface of the second piston ring is the radial direction of the lower end surface of second piston ring
The half of width；
Preferably, the lower section axial height of the ladder-like contact surface of the first piston ring is the half of upper section；
Preferably, the lower section axial height of the ladder-like contact surface of the second piston ring is the half of upper section.
8. a kind of piston assembly, which is characterized in that include as described in any one of claims 1 to 7 in the piston assembly
Built-up piston top bank ring.
9. a kind of internal combustion engine, which is characterized in that include combined type as described in any one of claims 1 to 7 in the internal combustion engine
Piston top bank ring.
10. a kind of encapsulating method of internal combustion engine, which is characterized in that use combination as described in any one of claims 1 to 7
Formula piston top bank ring is sealed movable piston.
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| CN201910475849.7A CN110145598B (en) | 2019-06-03 | 2019-06-03 | Combined piston top land ring, piston assembly, internal combustion engine and sealing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475849.7A CN110145598B (en) | 2019-06-03 | 2019-06-03 | Combined piston top land ring, piston assembly, internal combustion engine and sealing method |
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| CN110145598A true CN110145598A (en) | 2019-08-20 |
| CN110145598B CN110145598B (en) | 2024-02-09 |
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| CN201910475849.7A Active CN110145598B (en) | 2019-06-03 | 2019-06-03 | Combined piston top land ring, piston assembly, internal combustion engine and sealing method |
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Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB531345A (en) * | 1939-07-19 | 1941-01-02 | Wellworthy Piston Rings Ltd | Improvements relating to piston-rings |
| US3542376A (en) * | 1968-03-14 | 1970-11-24 | Sealed Power Corp | Piston and ring construction |
| US3704893A (en) * | 1970-09-04 | 1972-12-05 | Eaton Corp | Piston ring |
| US3834719A (en) * | 1970-10-27 | 1974-09-10 | Nippon Piston Ring Co Ltd | Piston head assembly having an l-shaped piston ring |
| US4346685A (en) * | 1979-01-23 | 1982-08-31 | Kawasaki Jukogyo Kabushiki Kaisha | Internal combustion engine with gas sealing device |
| JPS62251455A (en) * | 1986-04-24 | 1987-11-02 | Mazda Motor Corp | Reciprocating piston engine |
| CN2325534Y (en) * | 1998-04-08 | 1999-06-23 | 蔡平 | Sealing type and self-lubricating ladder-shaped combination piston ring |
| RU2156905C1 (en) * | 1999-01-19 | 2000-09-27 | Бирюков Петр Фетисович | Piston ring |
| JP2005264978A (en) * | 2004-03-16 | 2005-09-29 | Toyota Motor Corp | Pressure ring |
| JP2005351460A (en) * | 2004-06-14 | 2005-12-22 | Toyota Motor Corp | Piston ring |
| CN200943533Y (en) * | 2006-08-28 | 2007-09-05 | 中国南车集团戚墅堰机车车辆厂 | Internal combustion engine diesel engine cylinder with abrasive-reducing ring |
| KR100774733B1 (en) * | 2006-12-07 | 2007-11-08 | 현대자동차주식회사 | Rotatable piston ring device |
| CN201314376Y (en) * | 2008-12-26 | 2009-09-23 | 樊新 | Piston ring |
| CN201671719U (en) * | 2010-05-13 | 2010-12-15 | 张黎明 | Stepping type piston ring for internal combustion engine |
| RU2412367C1 (en) * | 2009-10-12 | 2011-02-20 | Государственное образовательное учреждение высшего профессионального образования Казанский государственный технический университет им. А.Н. Туполева (КГТУ им. А.Н. Туполева) | Piston seal for internal combustion engine |
| CN102116213A (en) * | 2010-01-05 | 2011-07-06 | 陆懋增 | L-shaped piston ring of internal combustion engine |
| CN202690244U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | Anti-leakage sealing piston ring |
| DE102013205908A1 (en) * | 2013-04-04 | 2014-10-09 | Federal-Mogul Burscheid Gmbh | Minute piston ring with a groove |
| CN205064111U (en) * | 2015-06-09 | 2016-03-02 | 陆懋增 | L type multipiece ring for internal -combustion engine |
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
| CN207568722U (en) * | 2017-11-21 | 2018-07-03 | 王德国 | A kind of biplate multiple-piece piston-ring |
| CN210240531U (en) * | 2019-06-03 | 2020-04-03 | 天津大学 | Combined piston top land ring, piston assembly and internal combustion engine |
-
2019
- 2019-06-03 CN CN201910475849.7A patent/CN110145598B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB531345A (en) * | 1939-07-19 | 1941-01-02 | Wellworthy Piston Rings Ltd | Improvements relating to piston-rings |
| US3542376A (en) * | 1968-03-14 | 1970-11-24 | Sealed Power Corp | Piston and ring construction |
| US3704893A (en) * | 1970-09-04 | 1972-12-05 | Eaton Corp | Piston ring |
| US3834719A (en) * | 1970-10-27 | 1974-09-10 | Nippon Piston Ring Co Ltd | Piston head assembly having an l-shaped piston ring |
| US4346685A (en) * | 1979-01-23 | 1982-08-31 | Kawasaki Jukogyo Kabushiki Kaisha | Internal combustion engine with gas sealing device |
| JPS62251455A (en) * | 1986-04-24 | 1987-11-02 | Mazda Motor Corp | Reciprocating piston engine |
| CN2325534Y (en) * | 1998-04-08 | 1999-06-23 | 蔡平 | Sealing type and self-lubricating ladder-shaped combination piston ring |
| RU2156905C1 (en) * | 1999-01-19 | 2000-09-27 | Бирюков Петр Фетисович | Piston ring |
| JP2005264978A (en) * | 2004-03-16 | 2005-09-29 | Toyota Motor Corp | Pressure ring |
| JP2005351460A (en) * | 2004-06-14 | 2005-12-22 | Toyota Motor Corp | Piston ring |
| CN200943533Y (en) * | 2006-08-28 | 2007-09-05 | 中国南车集团戚墅堰机车车辆厂 | Internal combustion engine diesel engine cylinder with abrasive-reducing ring |
| KR100774733B1 (en) * | 2006-12-07 | 2007-11-08 | 현대자동차주식회사 | Rotatable piston ring device |
| CN201314376Y (en) * | 2008-12-26 | 2009-09-23 | 樊新 | Piston ring |
| RU2412367C1 (en) * | 2009-10-12 | 2011-02-20 | Государственное образовательное учреждение высшего профессионального образования Казанский государственный технический университет им. А.Н. Туполева (КГТУ им. А.Н. Туполева) | Piston seal for internal combustion engine |
| CN102116213A (en) * | 2010-01-05 | 2011-07-06 | 陆懋增 | L-shaped piston ring of internal combustion engine |
| CN201671719U (en) * | 2010-05-13 | 2010-12-15 | 张黎明 | Stepping type piston ring for internal combustion engine |
| CN202690244U (en) * | 2012-06-06 | 2013-01-23 | 王松正 | Anti-leakage sealing piston ring |
| DE102013205908A1 (en) * | 2013-04-04 | 2014-10-09 | Federal-Mogul Burscheid Gmbh | Minute piston ring with a groove |
| CN205064111U (en) * | 2015-06-09 | 2016-03-02 | 陆懋增 | L type multipiece ring for internal -combustion engine |
| CN106286002A (en) * | 2015-06-09 | 2017-01-04 | 陆懋增 | A kind of internal combustion engine L-type multipiece ring |
| CN207568722U (en) * | 2017-11-21 | 2018-07-03 | 王德国 | A kind of biplate multiple-piece piston-ring |
| CN210240531U (en) * | 2019-06-03 | 2020-04-03 | 天津大学 | Combined piston top land ring, piston assembly and internal combustion engine |
Non-Patent Citations (2)
| Title |
|---|
| 单绍平;: "高效组合式活塞环的研究", 郑州铁路职业技术学院学报, no. 03, 20 September 2007 (2007-09-20), pages 6 - 7 * |
| 尹必峰;汪博文;钱晏强;吴立来;宋建华;: "柴油机活塞环结构及配合对机油消耗影响研究", 内燃机工程, no. 05, pages 139 - 144 * |
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