CN207333040U - A kind of device of control piston ring play - Google Patents
A kind of device of control piston ring play Download PDFInfo
- Publication number
- CN207333040U CN207333040U CN201720693680.9U CN201720693680U CN207333040U CN 207333040 U CN207333040 U CN 207333040U CN 201720693680 U CN201720693680 U CN 201720693680U CN 207333040 U CN207333040 U CN 207333040U
- Authority
- CN
- China
- Prior art keywords
- ring
- opening
- locating slot
- positioning pin
- gas
- 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.)
- Expired - Fee Related
Links
- 238000004891 communication Methods 0.000 claims description 2
- 238000007142 ring opening reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 30
- 238000005516 engineering process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of device of control piston ring play, is related to piston of automobile field.The device of the control piston ring play, positioning pin afterbody is installed in the second locating slot with interference fit type, pin head part is positioned to be installed in the first locating slot with interference fit type,, can be with the significantly rotation of limitation ring, it is entirely avoided the chance that three ring openings overlap using the piston ring of this structure type, greatly reduce leakage of the gas from opening, reduce the loss of power, improve service life, extend service life.
Description
Technical field
Piston of automobile field is the utility model is related to, more particularly to a kind of device of control piston ring play.
Background technology
At present in the machinery industries such as automobile engine, piston ring includes first gas ring, second gas ring and oil ring, Ta Mendou
It is to fit into piston ring groove, the effect of first gas ring is the sealing ensured between piston and cylinder wall, prevents high temperature, high-pressure gas
Crankcase largely is leak into, while most of heat of top land is also transmitted to casing wall.If gas tightness is bad, high temperature combustion
Gas will be directly channeled in crankcase by piston ring.The opening of three rings does not allow to overlap in assembling, ensures phase
Poor 120 degree, but in actual work, piston ring can tremble engine at work, and the opened gap position of ring also can
Generation play, has the probability of opened gap coincidence, such consequence, and air leakage can increase, and oil consumption can also increase, right
The performance of engine can have a great impact.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of dress of control piston ring play
Put, it has the advantages that simple in structure, design is reasonable, is easily installed and safeguards.
Technical solution is used by the utility model：A kind of device of control piston ring play, including piston, be arranged on
First gas ring, second gas ring and oil ring on piston, the first gas ring are arranged in first gas ring groove, and second gas ring is set
In second gas ring groove, oil ring is arranged in oil ring groove, is characterized in that, the first of connection is provided with first gas ring groove
Locating slot and the second locating slot, the outside diameter for positioning pin head part are more than the first locating slot internal diameter, and the outside diameter of positioning pin afterbody is more than the
Two locating slot internal diameters；
The first opening and the second opening are provided with gap-clearance of piston rings, and the first opening is more than the second opening, the first opening
With the second open communication, the first opening width is slightly larger than positioning pin afterbody outside diameter, and positioning pin afterbody is installed with interference fit type
In the second locating slot, positioning pin head part is installed in the first locating slot with interference fit type.
The beneficial effects of the utility model are：The device of the control piston ring play, positioning pin afterbody is with the side of interference fit
Formula is installed in the second locating slot, and positioning pin head part is installed in the first locating slot with interference fit type, using this structure shape
The piston ring of formula, can be with the significantly rotation of limitation ring, it is entirely avoided the chance that three ring openings overlap, substantially reduces
Leakage of the gas from opening, reduces the loss of power, improves service life, extends service life.
Brief description of the drawings
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
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is piston component front view in the utility model embodiment；
Fig. 2 is first gas ring partial cross sectional views in the utility model embodiment；
Fig. 3 is piston pin structure diagram in the utility model embodiment；
Number explanation is as follows in figure：1 first gas ring, 1-1 first is open, 1-2 second is open, 2 second gas rings, 3 oil rings, 4
Positioning pin, 4-1 positioning pins afterbody, 4-2 positioning pin head part, 5 pistons, the first locating slots of 5-1, the second locating slots of 5-2,6 first gas
Annular groove.
Embodiment
Enable the above-mentioned purpose, feature and advantage of the utility model more obvious understandable, below in conjunction with the accompanying drawings 1~Fig. 3
The utility model is described in further detail with embodiment.
The present embodiment use control piston ring play device, including piston 5, be arranged on piston first gas ring 1,
Second gas ring 2 and oil ring 3, first gas ring 1 are arranged in first gas ring groove 6, and second gas ring 2 is arranged in second gas ring groove, oil
Ring 3 is arranged in oil ring groove, and the first locating slot 5-1 and the second locating slot 5-2, the first positioning are provided with first gas ring groove 6
Groove 5-1 is connected with the second locating slot 5-2, and the outside diameter on 4 head of positioning pin is more than the first locating slot 5-1 internal diameters, 4 afterbody of positioning pin
Outside diameter is more than the second locating slot 5-2 internal diameters, and 4 afterbody of positioning pin and the second locating slot 5-2 are over-surplus fit structure；
The opening 1-2 of the first opening 1-1 and second are provided with gap-clearance of piston rings, and the first opening 1-1 is more than the second opening
All from the opening of connection gas blowby can occur for 1-2, the first opening 1-1 and the second opening 1-2 connections, 80% gas.The present embodiment
In, the first opening 1-1 width be slightly larger than positioning pin afterbody 4-1, first by positioning pin afterbody 4-1 with interference fit type installed in the
In two locating slot 5-2, positioning pin head part 4-2 is installed on 5-1 in the first locating slot with interference fit type, ensures positioning pin 4 not
Drop.After ring installation, the first opening locking positioning pin afterbody 4-2 of piston ring, simultaneously because the second opening 1-2 width is small
It in positioning pin afterbody 4-1 width, therefore can also prevent positioning pin afterbody from scurrying into the second opening 1-2, and then positioning pin 4 is limited
Position.
Said structure can also be applied in second gas ring 2 and second gas ring groove, its structure and first gas ring 1, first gas ring
Slot structure all same, details are not described herein.
Although the foregoing describing specific embodiment of the present utility model, those skilled in the art in the art should
Work as understanding, these are merely illustrative of, and can make various changes or modifications to these embodiments, new without departing from this practicality
The principle and essence of type.The scope of the utility model is only limited by the claims that follow.
Claims (1)
1. a kind of device of control piston ring play, including piston, the first gas ring being arranged on piston, second gas ring and oil
Ring, the first gas ring are arranged in first gas ring groove, and second gas ring is arranged in second gas ring groove, and oil ring is arranged on oil ring
In groove, it is characterised in that the first locating slot and the second locating slot of connection are provided with first gas ring groove, positions pin head part
Outside diameter is more than the first locating slot internal diameter, and the outside diameter of positioning pin afterbody is more than the second locating slot internal diameter；
The first opening and the second opening are provided with gap-clearance of piston rings, and the first opening is more than the second opening, the first opening and the
Two open communications, the first opening width are slightly larger than positioning pin afterbody outside diameter, and positioning pin afterbody is installed on the with interference fit type
In two locating slots, positioning pin head part is installed in the first locating slot with interference fit type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693680.9U CN207333040U (en) | 2017-06-15 | 2017-06-15 | A kind of device of control piston ring play |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693680.9U CN207333040U (en) | 2017-06-15 | 2017-06-15 | A kind of device of control piston ring play |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333040U true CN207333040U (en) | 2018-05-08 |
Family
ID=62426543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720693680.9U Expired - Fee Related CN207333040U (en) | 2017-06-15 | 2017-06-15 | A kind of device of control piston ring play |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333040U (en) |
-
2017
- 2017-06-15 CN CN201720693680.9U patent/CN207333040U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 |