CN203906108U - Three-ring locating full-sealing piston structure - Google Patents
Three-ring locating full-sealing piston structure Download PDFInfo
- Publication number
- CN203906108U CN203906108U CN201420319470.XU CN201420319470U CN203906108U CN 203906108 U CN203906108 U CN 203906108U CN 201420319470 U CN201420319470 U CN 201420319470U CN 203906108 U CN203906108 U CN 203906108U
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- China
- Prior art keywords
- piston
- ring
- piston ring
- lower inner
- inner carrier
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a three-ring locating full-sealing piston structure which comprises a piston body. At least two air ring grooves are formed in the piston body, an upper piston ring and a lower piston ring set are arranged in each air ring groove, each lower piston ring set comprises a lower inner piston ring and a lower outer piston ring, openings of the upper piston rings, openings of the lower outer piston rings and openings of the lower inner piston rings are arranged in the air ring grooves in a staggered mode, and upper piston ring locating pins are fixedly arranged on the groove bottom walls of the air ring grooves. Lower inner piston ring locating devices are arranged between the groove bottom walls of the air ring grooves and the openings of the lower inner piston rings. A lower outer piston ring locating pin seat is arranged on the peripheral face of the piston body below the air ring grooves, and a lower outer piston ring locating pin extending into the openings of the lower outer piston rings through a locating pin groove is fixedly arranged on the lower outer piston ring locating pin seat. Triple sealing protection is achieved, and the sealing effect is quite good. The lower outer piston ring locating devices are easy to machine, high in precision and convenient to mount and maintain.
Description
Technical field
The utility model relates to piston technical field, relates in particular to a kind of piston with multiple-piece piston-ring.
Background technique
Traditional cylinder of internal-combustion engine sealing is all open type with piston ring, and due to the existence in gap-clearance of piston rings and casing wall gap, the leakage of gas gas in the jar exists direct passage.Wearing and tearing along with piston ring outer rim and cylinder wall, the gap of piston opening constantly increases, the increase of opened gap has reduced the sealing effect of piston ring, inner pressure of air cylinder is reduced, increase gas blowby and altered oil mass, thereby cause combustion engine powered property decline, machine oil fuel oil consumption to increase, greatly reduce the working efficiency of internal-combustion engine.For solving above-mentioned technical barrier, the application number of inventor's model utility is that 200420097528.X, denomination of invention have proposed following solution for " a kind of multiple-piece piston-ring piston ": piston ring comprises main piston ring, interior sub-piston ring and upper sub-piston ring, piston main body is provided with the locating stud that three free ends extend into respectively main piston ring opening, interior sub-piston ring opening and upper sub-piston ring opening, wherein extend into the locating stud of main piston ring opening for being obliquely installed, this structure processed complex, machining accuracy is difficult to guarantee.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of good seal performance, processes three loop mapping Full-closed piston structures simple and easy for installation.
For solving the problems of the technologies described above, the technical solution of the utility model is: three loop mapping Full-closed piston structures, comprise piston only, on described piston only, be provided with at least twice compression, upper piston ring and lower piston ring group are installed in compression described in per pass, described lower piston ring group comprises lower inner carrier ring and is sleeved on the lower outside piston ring outside described lower inner carrier ring, the opening of described upper piston ring, the opening of the opening of described lower outside piston ring and described lower inner carrier ring is mutual dislocation setting in described compression, on the bottom land wall of described compression, be fixed with the upper piston ring locating stud in the opening that free end stretches into described upper piston ring, between the bottom land wall of described compression and the opening of described lower inner carrier ring, be provided with lower inner carrier loop mapping device, on the described piston only outer circumferential face of described compression below, be vertically provided with key seat hole, between described key seat hole and described compression, be provided with location cotter way, in described key seat hole, be embedded with lower outside locating pin for piston ring seat, on described lower outside locating pin for piston ring seat, be fixed with by described location cotter way and extend to the lower outside locating pin for piston ring in the opening of described lower outside piston ring.
As a kind of preferred technological scheme, described lower inner carrier loop mapping device comprises on the bottom land wall that is fixedly installed on described compression and free end stretches into the lower inner carrier loop mapping pin in the opening of described lower inner carrier ring.
As a kind of preferred technological scheme, described lower inner carrier loop mapping device comprises the location blind hole on the bottom land wall that is arranged on described compression, is provided with end and gos deep into the lower inner carrier loop mapping projection in the blind hole of described location on the internal surface of described lower inner carrier ring.
Owing to having adopted technique scheme, three loop mapping Full-closed piston structures, comprise piston only, on described piston only, be provided with at least twice compression, upper piston ring and lower piston ring group are installed in compression described in per pass, described lower piston ring group comprises lower inner carrier ring and is sleeved on the lower outside piston ring outside described lower inner carrier ring, the opening of described upper piston ring, the opening of the opening of described lower outside piston ring and described lower inner carrier ring is mutual dislocation setting in described compression, on the bottom land wall of described compression, be fixed with the upper piston ring locating stud in the opening that free end stretches into described upper piston ring, between the bottom land wall of described compression and the opening of described lower inner carrier ring, be provided with lower inner carrier loop mapping device, on the described piston only outer circumferential face of described compression below, be vertically provided with key seat hole, between described key seat hole and described compression, be provided with location cotter way, in described key seat hole, be embedded with lower outside locating pin for piston ring seat, on described lower outside locating pin for piston ring seat, be fixed with by described location cotter way and extend to the lower outside locating pin for piston ring in the opening of described lower outside piston ring, the setting of staggering of the opening of three piston rings, realizes triple seal protection, there will not be the situation of altering oil or gas blowby by opening, and sealing effect is very good, and the processing of the positioning device of lower outside piston ring is simple, precision is high, and installation and maintenance are convenient.
Accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the utility model embodiment's plan view;
Fig. 2 is that the utility model embodiment one A-B is to sectional view;
Fig. 3 is that the utility model embodiment one A-C is to sectional view;
Fig. 4 is I place enlarged view in Fig. 3;
Fig. 5 is left view in Fig. 4;
Fig. 6 is that the utility model embodiment two A-B is to sectional view;
Fig. 7 is the structural representation of lower inner carrier ring in the utility model embodiment two;
In figure: 1-piston only; 21-upper piston ring; The lower outside piston ring of 22-; Inner carrier ring under 23-; 31-upper piston ring locating stud; Inner carrier loop mapping pin under 32-; The lower outside locating pin for piston ring seat of 331-; The lower outside locating pin for piston ring of 332-; 41-locates blind hole; Inner carrier loop mapping projection under 42-; 43-oil ring.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that not departing from spirit and scope of the present utility model, can to described embodiment, revise by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
Embodiment one:
As shown in Figure 1, Figure 2 and Figure 3, three loop mapping Full-closed piston structures, comprise piston only 1, and the bottom of described piston only 1 is provided with oil ring 43; On described piston only 1, be provided with at least twice compression, upper piston ring 21 and lower piston ring group are installed in compression described in per pass, described lower piston ring group comprises lower inner carrier ring 23 and is sleeved on the lower outside piston ring 22 outside described lower inner carrier ring 23, the opening of the opening of the opening of described upper piston ring 21, described lower outside piston ring 22 and described lower inner carrier ring 23 is mutual dislocation setting in described compression, is fixed with the upper piston ring locating stud 31 in the opening that free end stretches into described upper piston ring 21 on the bottom land wall of described compression; Between the bottom land wall of described compression and the opening of described lower inner carrier ring 23, be provided with lower inner carrier ring 23 positioning devices, described lower inner carrier ring 23 positioning devices comprise on the bottom land wall that is fixedly installed on described compression and free end stretches into the lower inner carrier loop mapping pin 32 in the opening of described lower inner carrier ring 23; As shown in Figure 4 and Figure 5, on described piston only 1 outer circumferential face of described compression below, be vertically provided with key seat hole, between described key seat hole and described compression, be provided with location cotter way, in described key seat hole, be embedded with lower outside locating pin for piston ring seat 331, on described lower outside locating pin for piston ring seat 331, be fixed with by described location cotter way and extend to the lower outside locating pin for piston ring 332 in the opening of described lower outside piston ring 22.
In the technical solution of the utility model, the setting of staggering of the opening of three piston rings, realizes triple seal protection, there will not be the situation of altering oil or gas blowby by opening, and sealing effect is very good, easy to process, and machining accuracy is high, and later period maintenance is changed convenient.
Embodiment two:
The present embodiment and embodiment one are basic identical, difference is: as shown in Figure 6 and Figure 7, described lower inner carrier ring 23 positioning devices comprise the location blind hole 41 on the bottom land wall that is arranged on described compression, be provided with end and go deep into the lower inner carrier loop mapping projection 42 in described location blind hole 41 on the internal surface of described lower inner carrier ring 23.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments with various modifications that the utility model design is suitable for special-purpose.
Claims (3)
1. three loop mapping Full-closed piston structures, comprise piston only, it is characterized in that: on described piston only, be provided with at least twice compression, upper piston ring and lower piston ring group are installed in compression described in per pass, described lower piston ring group comprises lower inner carrier ring and is sleeved on the lower outside piston ring outside described lower inner carrier ring, the opening of described upper piston ring, the opening of the opening of described lower outside piston ring and described lower inner carrier ring is mutual dislocation setting in described compression, on the bottom land wall of described compression, be fixed with the upper piston ring locating stud in the opening that free end stretches into described upper piston ring, between the bottom land wall of described compression and the opening of described lower inner carrier ring, be provided with lower inner carrier loop mapping device, on the described piston only outer circumferential face of described compression below, be vertically provided with key seat hole, between described key seat hole and described compression, be provided with location cotter way, in described key seat hole, be embedded with lower outside locating pin for piston ring seat, on described lower outside locating pin for piston ring seat, be fixed with by described location cotter way and extend to the lower outside locating pin for piston ring in the opening of described lower outside piston ring.
2. three loop mapping Full-closed piston structures as claimed in claim 1, is characterized in that: described lower inner carrier loop mapping device comprises on the bottom land wall that is fixedly installed on described compression and free end stretches into the lower inner carrier loop mapping pin in the opening of described lower inner carrier ring.
3. three loop mapping Full-closed piston structures as claimed in claim 1, it is characterized in that: described lower inner carrier loop mapping device comprises the location blind hole on the bottom land wall that is arranged on described compression, on the internal surface of described lower inner carrier ring, be provided with end and go deep into the lower inner carrier loop mapping projection in the blind hole of described location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319470.XU CN203906108U (en) | 2014-06-16 | 2014-06-16 | Three-ring locating full-sealing piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319470.XU CN203906108U (en) | 2014-06-16 | 2014-06-16 | Three-ring locating full-sealing piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906108U true CN203906108U (en) | 2014-10-29 |
Family
ID=51780396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319470.XU Expired - Fee Related CN203906108U (en) | 2014-06-16 | 2014-06-16 | Three-ring locating full-sealing piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906108U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819067A (en) * | 2015-04-27 | 2015-08-05 | 李明领 | High-seal-performance piston |
| CN105804884A (en) * | 2014-12-30 | 2016-07-27 | 禅怀彬 | Efficient piston ring and piston assembly |
| CN106468225A (en) * | 2015-08-18 | 2017-03-01 | 李明领 | High-sealing piston compression ring |
-
2014
- 2014-06-16 CN CN201420319470.XU patent/CN203906108U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804884A (en) * | 2014-12-30 | 2016-07-27 | 禅怀彬 | Efficient piston ring and piston assembly |
| CN104819067A (en) * | 2015-04-27 | 2015-08-05 | 李明领 | High-seal-performance piston |
| CN106468225A (en) * | 2015-08-18 | 2017-03-01 | 李明领 | High-sealing piston compression ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200616 |