CN103696941A - Combined compressor piston ring - Google Patents
Combined compressor piston ring Download PDFInfo
- Publication number
- CN103696941A CN103696941A CN201310690214.1A CN201310690214A CN103696941A CN 103696941 A CN103696941 A CN 103696941A CN 201310690214 A CN201310690214 A CN 201310690214A CN 103696941 A CN103696941 A CN 103696941A
- Authority
- CN
- China
- Prior art keywords
- piston ring
- ring
- interior
- main piston
- outer rim
- 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.)
- Granted
Links
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polytetrafluoroethylene ring Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
Abstract
The invention discloses a combined compressor piston ring, comprising a main piston ring and an inner secondary piston ring; the main piston ring and the inner secondary piston ring are combined for use, have the same height and are provided with a notch respectively; the two notches are arranged in a mutually staggered mode; U-shaped unloading slots are arranged at the outer cylindrical surface of the main piston ring; the height of the outer ring sides of the main piston ring is two times that of the inner ring sides of the main piston ring; the height of the outer ring sides of the inner secondary piston rings is half that of the inner ring side of the inner secondary piston ring; the thicknesses of the inner ring sides and the outer ring sides of the main piston ring and the inner secondary piston ring are same and equal to the distances between the outer ring sides and the inner ring sides. Gaps of the notches can be effectively blocked and the sealing property of the piston ring is improved.
Description
Technical field
The present invention relates to Compressor Technology field, be specifically related to the piston ring structure in a kind of compressor.
Background technique
In reciprocal compressor, piston ring is installed on piston conventionally, by piston ring, come the gap between packed-piston and cylinder minute surface, mainly play seal action.The problem of two aspects that existing piston ring mainly exists rapid wear, sealing is not good enough.
About the rapid wear problem of piston ring, be by the improper decision of selection of piston ring to a certain extent, the metallic material to same to mill, different media is for the filled polytetrafluoroethylene ring of same formula, and its wear factor is different; For same medium, the different filled polytetrafluoroethylene rings to same formula to mill metallic material, wear factor is also different.
About the sealing problem of piston ring, the outer rim that wants piston ring fits tightly cylinder minute surface, and piston ring must obtain certain effective elastic force, thereby makes piston ring must be shaped with otch; If piston ring does not have otch, it just can not obtain just elastic force, and piston ring is not necessarily pasting cylinder minute surface, just the gas of high pressure may be revealed from the gap between piston ring and cylinder during compressor compresses gas.And the piston ring that is provided with otch is when normal work, because piston ring exists otch, in long-term using process, the gap of piston ring incision can be increasing, and then can affect the sealing of compressor.
Summary of the invention
The object of the present invention is to provide a kind of Combined compressor piston ring.
For achieving the above object, technological scheme of the present invention is:
A kind of Combined compressor piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, on main piston ring and interior sub-piston ring, all offer otch, the setting of mutually staggering of two otch, it is characterized in that: the external cylindrical surface of main piston ring offers " U " type compensating groove, the outer rim side height value of main piston ring is 2 times of interior ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of interior ring side height value, and the outer rim side of main piston ring and interior sub-piston ring, the one-tenth-value thickness 1/10 of interior ring side are all identical and equal the distance value between outer rim side and interior ring side.
Further, main piston ring and interior sub-piston ring comprise the body of being made by teflon and are filled in intrinsic polyether-ether-ketone.
Beneficial effect of the present invention is:
1, piston ring comprises contour main piston ring and interior sub-piston ring, the interior ring side of main piston ring snaps in the outer rim side and the groove between interior ring side of interior sub-piston ring, the outer rim side of interior sub-piston ring snaps in the outer rim side and the groove between interior ring side of main piston ring, the both ends of the surface up and down of combination rear master piston ring and interior sub-piston ring are concordant, can mutually effectively to the gap of its otch, carry out shutoff, improve the sealing of piston ring, the external cylindrical surface of main piston ring offers " U " type compensating groove, can effectively unload the pressure that piston ring is subject to, reduce to increase because of pressure the wearing and tearing that piston ring is caused, extend its working life.
2, the body of main piston ring and interior sub-piston ring is made by teflon, and in body, be filled with polyether-ether-ketone, the resistant to elevated temperatures temperature range of teflon body is 250～300 ℃, its friction factor≤0.20, the features such as polyether-ether-ketone has that mechanical strength is high, high temperature resistant, shock-resistant, fire-retardant, acid resistant alkali, wear-resisting, endurance, both are in conjunction with can effectively having reduced the friction factor of piston ring, the resistance to high temperature that has improved piston ring, wear-resisting property.
Accompanying drawing explanation
Fig. 1 is the structural representation of main piston ring and interior sub-piston ring in the present invention;
Fig. 2 is the combination schematic diagram of main piston ring and interior sub-piston ring in the present invention;
Fig. 3 is stereogram of the present invention;
Wherein reference character is that 1-main piston ring, 2-interior sub-piston ring, 3-otch, 4-" U " type compensating groove, the outer rim side of 11-main piston ring are, the interior ring side of outer rim side, the 22-interior sub-piston ring of interior ring side, the 21-interior sub-piston ring of 12-main piston ring.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
Embodiment one
As shown in Figure 1, a kind of Combined compressor piston ring, comprises main piston ring 1 and interior sub-piston ring 2.The height value of main piston ring 1 and interior sub-piston ring 2 equates, includes the body of being made by polytetrafluoroethylmaterial material and is filled in intrinsic polyether-ether-ketone.Main piston ring 1 and interior sub-piston ring 2 are provided with the setting of mutually staggering of 3, two otch 3 of otch.The intermediate portion of main piston ring 1 upper-end surface caves inward into a groove, formation is with the main piston ring 1 of outer rim side 11 and interior ring side 12, wherein outer rim side 11 height values of main piston ring 1 are 2 times of interior ring side 12 height values, interior ring side 12 height values equate with the distance value between outer rim side 11, interior ring side 12, also equate with the one-tenth-value thickness 1/10 of the ring of main piston ring 1 groove, make the height value of the outer rim side on main piston ring 1, the ratio of the one-tenth-value thickness 1/10 of the ring between the distance values of the height value of interior ring side, outer rim side and interior ring side and outer rim side and interior ring side is: 2:1:1:1.The intermediate portion of interior sub-piston ring 2 upper-end surfaces caves inward into a groove, formation is with the interior sub-piston ring 2 of outer rim side 21 and interior ring side 22, wherein outer rim side 21 height values of interior sub-piston ring 2 are 1/2 of interior ring side 22 height values, interior ring side 22 height values and outer rim side 21, distance value between interior ring side 22 equates, also equate with the one-tenth-value thickness 1/10 of the ring of interior sub-piston ring 2 grooves, make the height value of the outer rim side on interior sub-piston ring 2, the height value of interior ring side, the ratio of the one-tenth-value thickness 1/10 of the ring between the distance values of outer rim side and interior ring side and outer rim side and interior ring side is: 1:2:1:1.The external cylindrical surface of main piston ring 1 offers " U " type compensating groove 4.
Piston ring forms by being used in combination also contour main piston ring and interior sub-piston ring, and due to the relation between the distance values of outer rim side height value, interior ring side height value, outer rim side and interior ring side and the one-tenth-value thickness 1/10 of the ring between outer rim side and interior ring side, after main piston ring and interior sub-piston ring are installed, both both ends of the surface are all concordant, thereby can mutually effectively to the gap of its incision, carry out shutoff, improve the sealing of piston ring; The body of main piston ring and interior sub-piston ring is made by polytetrafluoroethylmaterial material, and is filled with polyether-ether-ketone in body, thereby can effectively reduce the friction factor of piston ring, the resistance to high temperature that has improved piston ring, wear-resisting property; In addition, at the external cylindrical surface of main piston ring, offer " U " type compensating groove, during operative scenario, can effectively unload its pressure, reduce the wearing and tearing that the variation of pressure causes piston ring, extend the working life of piston ring.
Embodiment two
Main piston ring 1 in embodiment one and interior sub-piston ring 2 are when assembling, the interior ring side 12 of main piston ring 1 snaps in the outer rim side 21, the groove between interior ring side 22 of interior sub-piston ring 2, and the outer rim side 21 of interior sub-piston ring 2 snaps in the groove between the outer rim side 11 of main piston ring 1, interior ring side 12.Height value due to the outer rim side 11 on main piston ring 1, the height value of interior ring side 12, the ratio of the one-tenth-value thickness 1/10 of the groove ring between the distance values of outer rim side 11 and interior ring side 12 and outer rim side 11 and interior ring side 12 is: 2:1:1:1, the height value of the outer rim side on interior sub-piston ring 2, the height value of interior ring side, the ratio of the one-tenth-value thickness 1/10 of the ring between the distance values of outer rim side and interior ring side and outer rim side and interior ring side is: 1:2:1:1, make after main piston ring 1 and interior sub-piston ring 2 install, main piston ring 1 is all concordant with the both ends of the surface of interior sub-piston ring 2, thereby can mutually effectively to the gap of its incision, carry out shutoff, improve the sealing of piston ring.
Claims (2)
1. a Combined compressor piston ring, comprise and being used in combination and contour main piston ring and interior sub-piston ring, on main piston ring and interior sub-piston ring, all offer otch, the setting of mutually staggering of two otch, it is characterized in that: the external cylindrical surface of main piston ring offers " U " type compensating groove, the outer rim side height value of main piston ring is 2 times of interior ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of interior ring side height value, and the outer rim side of main piston ring and interior sub-piston ring, the one-tenth-value thickness 1/10 of interior ring side are all identical and equal the distance value between outer rim side and interior ring side.
2. Combined compressor piston ring as claimed in claim 1, is characterized in that: main piston ring and interior sub-piston ring comprise the body of being made by teflon and be filled in intrinsic polyether-ether-ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690214.1A CN103696941B (en) | 2013-12-17 | 2013-12-17 | combined compressor piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690214.1A CN103696941B (en) | 2013-12-17 | 2013-12-17 | combined compressor piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103696941A true CN103696941A (en) | 2014-04-02 |
| CN103696941B CN103696941B (en) | 2016-03-02 |
Family
ID=50358582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310690214.1A Active CN103696941B (en) | 2013-12-17 | 2013-12-17 | combined compressor piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103696941B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1856961A (en) * | 1930-07-14 | 1932-05-03 | Madsen Tage | Restricting means for composite piston packing rings |
| US2670258A (en) * | 1952-02-28 | 1954-02-23 | Bergeron Alfred | Piston ring construction |
| US3792867A (en) * | 1971-09-27 | 1974-02-19 | A Bergeron | Piston ring construction |
| CN2412098Y (en) * | 2000-03-18 | 2000-12-27 | 广西中环机械有限责任公司 | Two-side oil scraping anti-rotation complementary piston ring |
| CN200958429Y (en) * | 2006-09-14 | 2007-10-10 | 江苏仪征金派内燃机配件有限公司 | Embedded chromium-plating immersed ceramic piston ring |
| CN203655564U (en) * | 2013-12-17 | 2014-06-18 | 成都展望能源机械有限公司 | Combined piston ring of compressor |
-
2013
- 2013-12-17 CN CN201310690214.1A patent/CN103696941B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1856961A (en) * | 1930-07-14 | 1932-05-03 | Madsen Tage | Restricting means for composite piston packing rings |
| US2670258A (en) * | 1952-02-28 | 1954-02-23 | Bergeron Alfred | Piston ring construction |
| US3792867A (en) * | 1971-09-27 | 1974-02-19 | A Bergeron | Piston ring construction |
| CN2412098Y (en) * | 2000-03-18 | 2000-12-27 | 广西中环机械有限责任公司 | Two-side oil scraping anti-rotation complementary piston ring |
| CN200958429Y (en) * | 2006-09-14 | 2007-10-10 | 江苏仪征金派内燃机配件有限公司 | Embedded chromium-plating immersed ceramic piston ring |
| CN203655564U (en) * | 2013-12-17 | 2014-06-18 | 成都展望能源机械有限公司 | Combined piston ring of compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103696941B (en) | 2016-03-02 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: Room 78328, building 3, No. 1800, Panyuan Road, Changxing Town, Chongming District, Shanghai 202150 (Shanghai Taihe Economic Development Zone) Patentee after: Dushi (Shanghai) science and Technology Service Center Address before: 610041 Singapore Industrial Park, hi tech Zone, Sichuan, Chengdu Patentee before: ZHANWANG Inc. |
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Effective date of registration: 20240119 Address after: 218000, 2nd Floor, Building 21, Xingxing Group, No. 258 Changping Road, Hongjia Street, Jiaojiang District, Taizhou City, Zhejiang Province (self declared) Patentee after: Zhejiang Longteng Compressor Co.,Ltd. Address before: Room 78328, building 3, No. 1800, Panyuan Road, Changxing Town, Chongming District, Shanghai 202150 (Shanghai Taihe Economic Development Zone) Patentee before: Dushi (Shanghai) science and Technology Service Center |
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| TR01 | Transfer of patent right |