CN104912686A - Internal combustion engine piston backing ring positioning sealing assembly - Google Patents
Internal combustion engine piston backing ring positioning sealing assembly Download PDFInfo
- Publication number
- CN104912686A CN104912686A CN201510354817.3A CN201510354817A CN104912686A CN 104912686 A CN104912686 A CN 104912686A CN 201510354817 A CN201510354817 A CN 201510354817A CN 104912686 A CN104912686 A CN 104912686A
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- CN
- China
- Prior art keywords
- ring
- grommet
- opening
- location
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/02—Pistons having means for accommodating or controlling heat expansion
- F02F3/04—Pistons having means for accommodating or controlling heat expansion having expansion-controlling inserts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F5/00—Piston rings, e.g. associated with piston crown
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses an internal combustion engine piston backing ring positioning sealing assembly. An upper sealing ring and a lower sealing ring are installed side by side in the same piston ring groove, and the opening of the upper sealing ring and the opening of the lower sealing ring are staggered by an angle of 180 degrees. The internal combustion engine piston backing ring positioning sealing assembly is characterized in that the piston ring groove is internally provided with a positioning backing ring, the positioning backing ring is installed on a circumference in the piston ring groove through an opening in a closely attached mode, the positioning backing ring is provided with an upper boss and a lower boss which are respectively opposite to the opening of the upper sealing ring and the opening of the lower sealing ring and are staggered by an angle of 180 degrees, the opening of the upper sealing ring is clamped on the upper boss of the positioning backing ring, and the opening of the lower sealing ring is clamped on the lower boss of the positioning backing ring. According to the invention, through the positioning effects of the two bosses of the positioning backing ring, the opening of an upper piston ring and the opening of a lower piston ring never move in the same line, such that axial and radial reliable sealing of a piston is guaranteed.
Description
Technical field
The present invention relates to the piston sealing device of dynamic power machine, especially a kind of internal combustion engine grommet location sealing assembly.
Background technique
Traditional internal combustion engine is generally provided with two or three compressions, in each annular groove, a piston ring is installed, during engine operation, comes closed chamber by piston ring, ensure the normal work of motor.But, due to the hatch frame of piston ring, make combustion chamber sealing performance always unsatisfactory, particularly when new engine work after a period of time, due to the wearing and tearing of piston ring, the opening of piston ring is strengthened gradually, and sealability declines gradually, do not have clean-burning composition to increase, both added the discharge that fuel consumption turn increases harmful gas.
Chinese patent ZL03266613.6 discloses a kind of piston seal structure for internal combustion engine, it comprises piston groove along piston side face and position piston ring in the inner, the location convex-concave cooperatively interacted is had at the opening of piston ring and the corresponding part of piston groove, two piston rings are provided with, the opening mutual dislocation of each piston ring in each described piston groove.
Chinese patent ZL02268954.0 discloses a kind of sealing device for internal combustion engine piston, feature is on piston, be provided with two circular grooves, install the piston ring of relative 180 degree of two collar extensions in each circular groove, inside and outside piston ring is stacked, and wherein inner carrier ring is L tee section ring.
Technique scheme is improved from different angles traditional sealing device for internal combustion engine piston, but still there is certain deficiency in practice, also needs continuous improvement and bring new ideas.
Summary of the invention
The present invention proposes a kind of internal combustion engine grommet location sealing assembly, and it has good axle, radial location sealability, thus makes the burning of combustion chambers of internal combustion engines more abundant, reduces oil consumption and exhaust emissions.
The technical solution used in the present invention is: internal combustion engine grommet location sealing assembly, comprise piston, upper sealing ring and lower sealing ring, upper sealing ring and lower sealing ring are arranged in same piston ring groove side by side, the opening mutual dislocation of upper sealing ring and lower sealing ring 180 degree, it is characterized in that in described piston ring groove, being also provided with a location grommet, location grommet is close to by its opening and is arranged in piston ring groove circumferentially, upper by mutual dislocation 180 degree and by correspondence on the grommet of location, the opening of lower sealing ring is provided with convex platform and lower convex platform, the open card of described upper sealing ring is on the convex platform of location grommet, the open card of lower sealing ring is on the lower convex platform of location grommet.
Convex platform on the grommet of described location and lower convex platform are made up of metal or nonmetallic material.
Described location grommet is made up of a series of continuous, symmetrical trapezoidal or rectangular, and these trapezoidal or rectangular tops alternately contact with two inner side surfaces of piston ring groove.
Described location grommet can be made into the ring elastic parts of the strip tape opening consistent with piston ring groove width.
Compared with prior art, beneficial effect of the present invention and feature: is that structure is simple.Piston is opened the compression of one twice seal ring thickness, successively placement positioning grommet and upper and lower seal ring, the opening of upper and lower seal ring is snapped in respectively the upper and lower boss of location grommet.On piston groove, relatively arrange the prior art of location convex-concave, the present invention does not need to change piston groove structure, its production and processing and easier for installation; Two is good seal performance.Owing to locating the positioning action of two boss of grommet, the opening of upper and lower piston ring is made to move on a line never, the opening overcoming two seal rings in prior art may move on a line in piston movement process, cause the defect that sealability declines, ensure that the axle of piston, radial reliable sealing; Three is that whole location grommet adopts elastomeric 304 stainless steel sheets manufactures, upper and lower boss on its location grommet can be made up of metal or nonmetallic material, overall make annular elastomeric, high elasticity, corrosion-resistant, high working life by a series of continuous, symmetrical trapezoidal, rectangulars or the strip consistent with piston ring groove width.Product is on probation on multiple vehicle, and fuel saving ratio reaches more than 10%, significantly reduces the discharge of harmful gas simultaneously, is a kind of energy-saving and emission-reduction product being applicable to internal combustion engine reducing energy consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of the embodiment of the present invention;
Fig. 2 is the structural representation of one of location grommet embodiment;
Fig. 3 is the partial view of the location convex platform of grommet and the opening fastening state of upper piston ring;
Fig. 4 is the partial view that location grommet arranges state in piston ring groove.
Number in the figure represents respectively: 1-locates grommet, 1a-convex platform, 1b-lower convex platform, 2-upper piston ring, the opening of 2a-upper piston ring, 3-lower piston ring, the opening of 3a-lower piston ring, 4-piston, 5-piston ring groove.
Embodiment
Shown in Fig. 1, piston 4 of the present invention is equipped with upper sealing ring 2 and lower sealing ring 3, upper sealing ring 2 and lower sealing ring 3 are arranged in same piston ring groove side by side, the opening mutual dislocation 180 degree of upper sealing ring 2 and lower sealing ring 3.A location grommet 1 is provided with in piston ring groove 5, location grommet 1 is close to by its opening and is arranged in piston ring groove 5 circumferentially, location grommet 1 is provided with convex platform 1a and lower convex platform 1b by mutual dislocation 180 degree by the opening of the upper and lower seal ring of correspondence, the opening 2a of described upper sealing ring is stuck on the convex platform 1a of location grommet 1, and the opening 3a of lower sealing ring is stuck on the lower convex platform 1b of location grommet 1.
As required, the convex platform 1a on the grommet 1 of location and lower convex platform 1b can adopt metal or nonmetallic material to make.Nonmetallic material mentioned here comprise teflon, silica gel etc., and nonmetallic material form the boss matched completely with the opening of upper and lower seal ring by various ways such as mold pressing, coating or fillings on the grommet of location.
Fig. 2 is as an embodiment of location grommet 1, the location grommet 1 of this example is made up of a series of continuous, symmetrical trapezoidal or rectangular, these trapezoidal or rectangular tops alternately contact (as shown in Figure 4) with two inner side surfaces of piston ring groove 5, and location grommet is made up the ring elastic parts of band opening of elastic steel sheet.
According to different designing requirements, location grommet 1 also can be made into the ring elastic parts of the strip tape opening consistent with piston ring groove 5 width, and arranges convex platform 1a and lower convex platform 1b by mutual dislocation 180 degree by the opening of the upper and lower seal ring of correspondence on the grommet 1 of location.
Exemplarily, Fig. 3 illustrates the fastening state of the location convex platform 1a of the grommet 1 and opening 2a of upper piston ring, corresponding, the lower convex platform 1b of location grommet 1 is located at and misplaces in another lateral location of 180 degree with convex platform 1a, is fastened togather with the opening 3a of lower sealing ring.In technical requirements, the location upper and lower boss of grommet 1 must have good cooperation with the opening of two piston rings, and gap-clearance of piston rings place has good sealing equally to make it ensure.
Fig. 4 illustrates that one of embodiment of location grommet 1 arranges state in piston ring groove 5, trapezoidal or the rectangular top of location grommet 1 alternately contacts with two inner side surfaces of piston ring groove 5, and black box of the present invention ensure that the axle of piston, radial reliable sealing conscientiously by more perfect many aspects.
Claims (4)
1. an internal combustion engine grommet location sealing assembly, comprise piston (4), upper sealing ring (2) and lower sealing ring (3), upper sealing ring (2) and lower sealing ring (3) are arranged in same piston ring groove (5) side by side, the opening mutual dislocation 180 degree of upper sealing ring (2) and lower sealing ring (3), it is characterized in that in described piston ring groove (5), being also provided with location grommet (1), location grommet (1) is close to by its opening and is arranged in piston ring groove (5) circumferentially, upper by mutual dislocation 180 degree and by correspondence on location grommet (1), the opening of lower sealing ring is provided with convex platform (1a) and lower convex platform (1b), the opening (2a) of described upper sealing ring is stuck on the convex platform (1a) of location grommet (1), the opening (3a) of lower sealing ring is stuck on the lower convex platform (1b) of location grommet (1).
2. internal combustion engine grommet location sealing assembly according to claim 1, is characterized in that convex platform (1a) on described location grommet (1) and lower convex platform (1b) are made up of metal or nonmetallic material.
3. internal combustion engine grommet location sealing assembly according to claim 1 and 2, it is characterized in that described location grommet (1) is made up of a series of continuous, symmetrical trapezoidal or rectangular, these trapezoidal or rectangular tops alternately contact with two inner side surfaces of piston ring groove (5).
4. internal combustion engine grommet location sealing assembly according to claim 1 and 2, is characterized in that described location grommet (1) can be made into the ring elastic parts of the strip tape opening consistent with piston ring groove (5) width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510354817.3A CN104912686A (en) | 2015-06-24 | 2015-06-24 | Internal combustion engine piston backing ring positioning sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510354817.3A CN104912686A (en) | 2015-06-24 | 2015-06-24 | Internal combustion engine piston backing ring positioning sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912686A true CN104912686A (en) | 2015-09-16 |
Family
ID=54082070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510354817.3A Pending CN104912686A (en) | 2015-06-24 | 2015-06-24 | Internal combustion engine piston backing ring positioning sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745164A (en) * | 2017-10-25 | 2018-03-02 | 安庆安帝技益精机有限公司 | A kind of big footpath bushing ring shearing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814444A (en) * | 1972-07-18 | 1974-06-04 | Hastings Mfg Co | Low friction piston ring |
| CN87206434U (en) * | 1987-04-14 | 1988-08-03 | 徐冠英 | Wedge shape compose type air sealing piston ring |
| JPH10331972A (en) * | 1997-05-30 | 1998-12-15 | Nippon Piston Ring Co Ltd | Three-piece oil ring for diesel engine |
| CN2454552Y (en) * | 2000-10-23 | 2001-10-17 | 丁来芝 | Energy-saing steel combined ring oiled of diesel engine |
| CN2503218Y (en) * | 2001-11-09 | 2002-07-31 | 上海超外发动机科技有限公司 | Positioning lining whole sealed piston ring |
| CN201074557Y (en) * | 2007-08-15 | 2008-06-18 | 姜旭锦 | Composite oil ring |
| CN204704023U (en) * | 2015-06-24 | 2015-10-14 | 张枫 | Internal combustion engine grommet location sealing assembly |
-
2015
- 2015-06-24 CN CN201510354817.3A patent/CN104912686A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814444A (en) * | 1972-07-18 | 1974-06-04 | Hastings Mfg Co | Low friction piston ring |
| CN87206434U (en) * | 1987-04-14 | 1988-08-03 | 徐冠英 | Wedge shape compose type air sealing piston ring |
| JPH10331972A (en) * | 1997-05-30 | 1998-12-15 | Nippon Piston Ring Co Ltd | Three-piece oil ring for diesel engine |
| CN2454552Y (en) * | 2000-10-23 | 2001-10-17 | 丁来芝 | Energy-saing steel combined ring oiled of diesel engine |
| CN2503218Y (en) * | 2001-11-09 | 2002-07-31 | 上海超外发动机科技有限公司 | Positioning lining whole sealed piston ring |
| CN201074557Y (en) * | 2007-08-15 | 2008-06-18 | 姜旭锦 | Composite oil ring |
| CN204704023U (en) * | 2015-06-24 | 2015-10-14 | 张枫 | Internal combustion engine grommet location sealing assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745164A (en) * | 2017-10-25 | 2018-03-02 | 安庆安帝技益精机有限公司 | A kind of big footpath bushing ring shearing device |
| CN107745164B (en) * | 2017-10-25 | 2024-03-22 | 安庆安帝技益精机有限公司 | Large-diameter bushing ring cutting device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |