CN208153185U - piston ring and engine - Google Patents
piston ring and engine Download PDFInfo
- Publication number
- CN208153185U CN208153185U CN201721830421.2U CN201721830421U CN208153185U CN 208153185 U CN208153185 U CN 208153185U CN 201721830421 U CN201721830421 U CN 201721830421U CN 208153185 U CN208153185 U CN 208153185U
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- CN
- China
- Prior art keywords
- piston ring
- ring body
- compact heap
- compensation
- guide chute
- Prior art date
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Abstract
The utility model provides a kind of piston ring, including piston ring body and open up opened gap thereon, piston ring body includes the first ring body cantilever and the second ring body cantilever for surrounding opened gap, the compensation compact heap that setting is stretched out along the sliding of opened gap direction on the first ring body cantilever and/or the second ring body cantilever.Piston ring body can be divided into the first ring body cantilever and the second ring body cantilever in opened gap position, when piston ring body because abrasion opened gap occurs and becomes larger, compact heap is compensated to stretch out to opened gap direction, it is filled in opened gap position, so that piston ring body is inserted between the first ring body cantilever and the second ring body cantilever in opened gap position by compensation compact heap, to guarantee the sealing performance of entire piston ring body, to guarantee the working performance of engine.The utility model additionally provides a kind of engine with above-mentioned piston ring structure.
Description
Technical field
The utility model relates to technical field of engines, more specifically to a kind of piston ring and engine.
Background technique
Piston ring (Piston Ring) is the becket for being embedded in inside piston groove, to expand outwardly with larger
The metallic elastic ring of deformation.Piston ring is divided into compression ring and two kinds of machine oil ring.Compression ring can be used to flammable in sealing combustion room
Mixed gas, machine oil ring are then used to strike off machine oil extra on cylinder.
Piston ring is mounted on the piston in cylinder, and its corresponding annular groove of section is opened up on piston, living
Plug ring does reciprocal and rotary motion in cylinder, by the pressure difference of gas or liquid, in ring periphery and cylinder and ring and
Sealing is formed between one side of annular groove.
In the prior art, as the abrasion of cylinder jacket and piston, piston ring gap can be increasing, piston is caused to leak
Tolerance is increasing, and function of the engine is worse and worse.
Therefore, how to reduce influence of the piston ring gap variation to engine performance, be current those skilled in the art
Member's urgent problem to be solved.
Utility model content
In view of this, the present invention provides a kind of piston rings, to reduce piston ring gap variation to engine
The influence of performance；The utility model additionally provides a kind of engine.
In order to achieve the above object, the utility model provides the following technical solutions：
A kind of piston ring including piston ring body and opens up opened gap thereon, and the piston ring body includes surrounding institute
State the first ring body cantilever and the second ring body cantilever of opened gap, the first ring body cantilever and/or the second ring body cantilever
The compensation compact heap that upper setting is stretched out along opened gap direction sliding.
Preferably, in above-mentioned piston ring, the compensation compact heap is slideably positioned in the second ring body cantilever.
Preferably, in above-mentioned piston ring, it is sliding that the guiding arranged along its length is opened up on the second ring body cantilever
Slot, the compensation compact heap are slideably positioned in the guide chute.
Preferably, in above-mentioned piston ring, in the guide chute compression be provided with elastic both ends respectively with the compensation
The elastic support member that the bottom of compact heap and the guide chute offsets.
Preferably, in above-mentioned piston ring, the elastic support member is respectively welded for both ends is fixed in the compensation pressure
The compressed spring of the bottom of tight block and the guide chute.
Preferably, in above-mentioned piston ring, the thickness of the compensation compact heap is identical as the groove depth of the guide chute, institute
State notch setting and the compressing structure of the outside wall surface compression fit of the compensation compact heap of guide chute.
Preferably, in above-mentioned piston ring, the guide chute includes being located at the guiding along its groove depth direction and sliding
The width of the anticreep sliding slot of the inside of slot and the positioning runner in outside, the anticreep sliding slot is arranged along groove depth direction flaring.
Preferably, in above-mentioned piston ring, the positioning runner is along the tapered arrangement in groove depth direction.
Preferably, in above-mentioned piston ring, the compensation compact heap is set to the lateral wall of the piston ring body.
A kind of engine, including engine body and the piston being set in the engine body cylinder, the piston
On be set with piston ring, the piston ring is piston ring described in any one as above.
Piston ring provided by the utility model including piston ring body and opens up opened gap thereon, piston ring body packet
The the first ring body cantilever and the second ring body cantilever for surrounding opened gap are included, is set on the first ring body cantilever and/or the second ring body cantilever
Set the compensation compact heap stretched out along the sliding of opened gap direction.Piston ring body is separated into two sections in opened gap position, is used for
For piston ring body suit to the installment work on piston, piston ring body can be divided into the first ring body cantilever and second in opened gap position
Ring body cantilever, the setting compensation compact heap on the first ring body cantilever or the second ring body cantilever, or be all provided on two ring body cantilevers
Compensation compact heap is set, compensation compact heap can be slided along the direction of opened gap to be stretched out, therefore when piston ring body because abrasion occurs
Opened gap becomes larger, and compensation compact heap is stretched out to opened gap direction, opened gap position is filled in, so that piston ring body is being opened
Mouth interstitial site is inserted between the first ring body cantilever and the second ring body cantilever by compensation compact heap, to guarantee entire piston ring body
Sealing performance, to guarantee the working performance of engine.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of piston ring provided by the utility model；
Fig. 2 is the partial enlarged view of Fig. 1 split shed interstitial site；
Fig. 3 is the cross-sectional configuration schematic diagram that compact heap position is compensated in Fig. 1.
Specific embodiment
The utility model discloses a kind of piston rings, reduce piston ring gap variation to the shadow of engine performance
It rings；The utility model additionally provides a kind of engine.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1-Figure 3, Fig. 1 is the structural schematic diagram of piston ring provided by the utility model；Fig. 2 is Fig. 1 split shed
The partial enlarged view of interstitial site；Fig. 3 is the cross-sectional configuration schematic diagram that compact heap position is compensated in Fig. 1.
The utility model provides a kind of piston ring, including piston ring body 1 and opens up opened gap 10 thereon, piston
Ring body 1 includes surrounding the first ring body cantilever 11 and the second ring body cantilever 12 of opened gap 10, the first ring body cantilever 11 and/or the
The compensation compact heap 2 stretched out along the sliding of 10 direction of opened gap is set on two ring body cantilevers 12.Piston ring body 1 is in opened gap 10
Position is separated into two sections, and for the 1 set of installment work being attached on piston of piston ring body, piston ring body 1 is at opened gap 10
The first ring body cantilever 11 and the second ring body cantilever 12 can be divided by setting, and be arranged on the first ring body cantilever 11 or the second ring body cantilever 12
Compact heap 2 is compensated, or is respectively provided with compensation compact heap 2 on two ring body cantilevers, compensation compact heap 2 can be along the side of opened gap 10
It is stretched out to sliding, therefore when piston ring body 1 because abrasion opened gap 10 occurs and becomes larger, compensates compact heap 2 to opened gap 10
Direction is stretched out, and 10 position of opened gap is filled in, so that piston ring body 1 is inserted in 10 position of opened gap by compensation compact heap 2
Between first ring body cantilever 11 and the second ring body cantilever 12, to guarantee the sealing performance of entire piston ring body 1, to guarantee to send out
The working performance of motivation.
In one specific embodiment of this case, compensation compact heap 2 is slideably positioned in the second ring body cantilever 12.On piston ring
Opened gap 10 is smaller, and compensation compact heap 2 is located in the second ring body cantilever 12, and can slide on the second ring body cantilever 12
In opened gap 10, the structure in piston ring upper opening gap 10 is adapted to, therefore is only arranged on a cantilever of piston ring body 1 and mends
Compact heap 2 is repaid, the space that it becomes larger can be filled after opened gap 10 becomes larger.Compensation compact heap 2 is set to second
Ring body cantilever 12, stretching can offset with the end of the first ring body cantilever 11, to be filled to 10 position of opened gap, make
Piston ring is continuous ring structure, avoid leaking air blow-by of piston problem caused by problem in 10 position of opened gap, protect
Function of the engine is demonstrate,proved.
In one specific embodiment of this case, the guide chute arranged along its length is opened up on the second ring body cantilever 12
13, compensation compact heap 2 is slideably positioned in guide chute 13.Piston ring set loaded on the piston of cylinder, sending out by piston
It is back and forth run in motivation cylinder, drives sliding friction between piston ring and cylinder wall, since compensation compact heap 2 is slideably positioned in the
On two ring body cantilevers 12, in order to avoid compensation compact heap 2 is fallen in the working environment that piston ring reciprocatingly slides and rubs
The problem of, need to guarantee to compensate the stability of the mounting structure on the second ring body cantilever 12 of compact heap 2.
Open up guide chute 13 on second ring body cantilever 12, guide chute 13 along the second ring body cantilever 12 length direction,
It compensates compact heap 2 to be packed into guide chute 13, it is to be understood that since piston ring body 1 is ring structure, 13 edge of guide chute
The length direction of second ring body cantilever 12 is opened up along the radian direction of piston ring body 1, therefore compensate compact heap 2 and be and piston
The radian of ring body is consistent.
Certainly, the structure of guide chute 13 is not limited to be opened on the second ring body cantilever 12, can such as open up guide chute
In on compensation guide runner, opening up guided way on the second ring body cantilever, guided way and guide chute, which are mutually embedded in, to be realized to compensation
Limit of the compact heap in piston ring axial direction.
In one specific embodiment of this case, in guide chute 13 compression be provided with elastic both ends respectively with compensation compact heap 2
The elastic support member 3 to offset with the bottom of guide chute 13.Compensation compact heap 2 and the second ring body cantilever 12 pass through guide chute
13 structure directing sliding, when opened gap 10 becomes larger, need to compensate compact heap 2 can be automatically by stretching out in guide chute 13.
Elastic support member 3 is set in guide chute 13, and one end and the loading end of compensation compact heap 2 offset, the other end
It offsets with the bottom of guide chute 13, elastic support member 3 is compressed state, therefore sustainable to the compensation offer of compact heap 2
The active force of guide chute 13 is released to offset with the end of the first ring body cantilever 11 after compensation compact heap 2 stretches out, compensate and fill out
Fill opened gap 10.Certainly, guiding surface can be set in the contact face of guide chute 13 and compensation compact heap 2, utilizes work
Plug reciprocatory movement releases guide chute for compact heap is compensated automatically, the active force to offset with the first ring body cantilever provided
It is smaller, can still there be leakage problem, be preferred with providing elastic thrust.
The resilient support both ends of elastic support member 3 are fixedly connected with compensation compact heap 2 and guide chute 13, avoid piston
The abjection of elastic support member in the ring course of work.
Preferably, elastic support member 3 is that the bottom for being fixed in compensation compact heap 2 and guide chute 13 is respectively welded in both ends
Compressed spring.Elastic support member 3 uses compressed compressed spring, and compressed spring is fixed using welding manner.Certainly, bullet
Property support member can be using the elastomeric elements such as arc elastic piece of compression deformation.
In one specific embodiment of this case, the thickness for compensating compact heap 2 is identical as the groove depth of guide chute 13, guide chute
13 notch setting and the compressing structure of the outside wall surface compression fit of compensation compact heap 2.It is outstanding that guide chute is opened in the second ring body
On arm 12, compensation compact heap 2 is filled in guide chute 13, since piston ring is run with piston reciprocating, so that piston ring continues
By along its axial sides, the i.e. outside of 13 two sidewalls of guide chute, friction force, in order to guarantee the knot of piston ring itself
The thickness of the intensity of structure, setting compensation compact heap 2 is identical as the groove depth of guide chute 13, so that compensation compact heap 2 is filled into and leads
Into sliding slot 13, the end face that the second ring body cantilever 12 is located at 13 side of guide chute is concordant, is compressed by guide chute 13 and compensation
Block 2 is mutually supported with the frictional force being subject in the piston ring course of work jointly, guarantees the structural strength of piston ring.
Piston ring is in assembly, the problem of being packed into cylinder after being assembled on piston, while facing piston disassembly, it is therefore desirable to
Guarantee sliding of the compensation compact heap 2 in guide chute 13 only along the guiding of guide chute 13.Compact heap 2 is compensated in the side of skidding off
To being offseted by the first ring body cantilever 11 and compensation compact heap 2, limited position of the compensation compact heap 2 in guide chute 13
Position.And in the groove depth direction of guide chute 13, compressing structure is arranged by the notch in guide chute 13, avoids compensation compact heap
2 abjection.Such as trapezium structure or step structure can be set by the cross section of guide chute 13, be led so that notch position utilizes
Compensation compact heap is limited to sliding slot self structure.
In one specific embodiment of this case, guide chute 13 includes being located at the interior of guide chute along its groove depth direction
The width of the anticreep sliding slot 14 of side and the positioning runner 15 in outside, anticreep sliding slot 14 is arranged along groove depth direction flaring.It is slided with being oriented to
The cross section of slot 13 is illustrated its structure.Guide chute 13 divides for close to the positioning runner 15 of notch position and groove depth bottom
14 two parts of anticreep sliding slot, anticreep sliding slot 14 is width along groove depth direction divergent structure, i.e., compensation compact heap 2 is close to groove depth
The width of bottom is greater than the width of its waist, is limited using the self structure of guide chute 13 and compensation compact heap 2.
Preferably, positioning runner 13 is along the tapered arrangement in groove depth direction.Accordingly, compensation compact heap 2 is by it close to notch
The width of side need to guarantee to seal to the width tapered configuration of its waist since piston ring is adjacent to side with cylinder inner wall or piston
Property, it is therefore desirable to guarantee the sealability between compensation compact heap 2 and the second ring body cantilever 12, by 13 notch arrangement of guide chute
It is big to be set as opening width, to the gradually smaller bell-mouth structure of air of groove depth direction width, therefore can to 13 position of positioning runner into
Row finishing guarantees the lateral wall of compensation compact heap 2 to also achieve the positioning to compensation compact heap 2 and guide chute 13
It is generally aligned in the same plane with the second ring body cantilever 13.
In one specific embodiment of this case, compensation compact heap 2 is set to the lateral wall of piston ring body 1.Compensate compact heap 2 with
Cylinder wall contact, corresponding guide chute 13 opens up the lateral wall with piston ring body 2, convenient for the processing to guide chute 13.Also sharp
Control in piston ring and piston installation process, to compensation 2 position of compact heap.
The piston ring provided in based on the above embodiment, the utility model additionally provide a kind of engine, including engine
Ontology and the piston being set in engine body cylinder, the piston ring which is equipped with are the work provided in above-described embodiment
Plug ring.
Since the engine uses the piston ring of above-described embodiment, so the engine is by piston ring bring beneficial to effect
Fruit please refers to above-described embodiment.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of piston ring, which is characterized in that including piston ring body and open up opened gap thereon, the piston ring body packet
Include the first ring body cantilever and the second ring body cantilever for surrounding the opened gap, the first ring body cantilever and/or described second
The compensation compact heap stretched out along opened gap direction sliding is set on ring body cantilever.
2. piston ring according to claim 1, which is characterized in that the compensation compact heap is slideably positioned in second ring
In body cantilever.
3. piston ring according to claim 2, which is characterized in that opened up along its length on the second ring body cantilever
The guide chute of arrangement, the compensation compact heap are slideably positioned in the guide chute.
4. piston ring according to claim 3, which is characterized in that compression is provided with elastic both ends point in the guide chute
The elastic support member not offseted with the bottom of the compensation compact heap and the guide chute.
5. piston ring according to claim 4, which is characterized in that the elastic support member is respectively welded affixed for both ends
Compressed spring in the bottom of the compensation compact heap and the guide chute.
6. piston ring according to claim 3, which is characterized in that the thickness and the guide chute of the compensation compact heap
Groove depth it is identical, the compressing structure of the setting of the notch of the guide chute and the outside wall surface compression fit of the compensation compact heap.
7. piston ring according to claim 6, which is characterized in that the guide chute includes along its groove depth direction, respectively
Positioned at the anticreep sliding slot of the inside of the guide chute and the positioning runner in outside, the width of the anticreep sliding slot is along the groove depth
Direction flaring arrangement.
8. piston ring according to claim 7, which is characterized in that the positioning runner is along the tapered cloth in groove depth direction
It sets.
9. piston ring according to claim 2, which is characterized in that the compensation compact heap is set to the piston ring body
Lateral wall.
10. a kind of engine, including engine body and the piston being set in the engine body cylinder, on the piston
It is set with piston ring, which is characterized in that the piston ring is the piston ring as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830421.2U CN208153185U (en) | 2017-12-25 | 2017-12-25 | piston ring and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830421.2U CN208153185U (en) | 2017-12-25 | 2017-12-25 | piston ring and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208153185U true CN208153185U (en) | 2018-11-27 |
Family
ID=64413157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830421.2U Active CN208153185U (en) | 2017-12-25 | 2017-12-25 | piston ring and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208153185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131216A (en) * | 2017-12-25 | 2018-06-08 | 潍柴动力股份有限公司 | Piston ring and engine |
-
2017
- 2017-12-25 CN CN201721830421.2U patent/CN208153185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131216A (en) * | 2017-12-25 | 2018-06-08 | 潍柴动力股份有限公司 | Piston ring and engine |
| CN108131216B (en) * | 2017-12-25 | 2024-03-19 | 潍柴动力股份有限公司 | Piston ring and engine |
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