CN103696941B - combined compressor piston ring - Google Patents
combined compressor piston ring Download PDFInfo
- Publication number
- CN103696941B CN103696941B CN201310690214.1A CN201310690214A CN103696941B CN 103696941 B CN103696941 B CN 103696941B CN 201310690214 A CN201310690214 A CN 201310690214A CN 103696941 B CN103696941 B CN 103696941B
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- CN
- China
- Prior art keywords
- piston ring
- ring
- outer rim
- interior sub
- main piston
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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
- 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
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of Combined compressor piston ring, comprise and combinationally using and contour main piston ring and interior sub-piston ring, main piston ring and interior sub-piston ring all offer otch, two otch stagger setting mutually, the external cylindrical surface of main piston ring offers " U " type compensating groove, the outer rim side height of main piston ring is 2 times of inner ring side height, the outer rim side height of interior sub-piston ring is 1/2 of inner ring side height, all identical and distance equaled between outer rim side and inner ring side of the outer rim side of main piston ring and interior sub-piston ring, the thickness of inner ring side.The present invention can carry out shutoff in the effective gap to its otch mutually, improves the sealing of piston ring.
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 is provided with piston ring usually, comes the gap between packed-piston and cylinder minute surface by piston ring, 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 the selection of piston ring to a certain extent, to the metallic material of same to mill, the filled polytetrafluoroethylene ring that different media fill a prescription for same, its wear factor difference; For same medium, the different filled polytetrafluoroethylene rings of filling a prescription to same to mill metallic material, wear factor is also different.
About the sealing problem of piston ring, the outer rim wanting piston ring fits tightly cylinder minute surface, and piston ring must obtain certain effective elastic force, thus makes piston ring to be shaped with otch; If piston ring does not have otch, it just can not obtain just elastic force, and piston ring not necessarily againsts cylinder minute surface, and during compressor compresses gas, the gas of high pressure just may be revealed from the gap between piston ring and cylinder.And the piston ring being provided with otch is when normally working, 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 combinationally using and contour main piston ring and interior sub-piston ring, main piston ring and interior sub-piston ring all offer otch, two otch stagger setting mutually, 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 inner ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of inner ring side height value, all identical and distance value equaled between outer rim side and inner ring side of the outer rim side of main piston ring and interior sub-piston ring, the one-tenth-value thickness 1/10 of inner ring side.
Further, main piston ring and interior sub-piston ring comprise the body be made up of 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 inner ring side of main piston ring snaps in the groove between the outer rim side of interior sub-piston ring and inner ring side, the outer rim side of interior sub-piston ring snaps in the groove between the outer rim side of main piston ring and inner ring side, combination rear master piston ring is concordant with the both ends of the surface up and down of interior sub-piston ring, mutually can carry out shutoff in the effective gap to its otch, improve the sealing of piston ring, the external cylindrical surface of main piston ring offers " U " type compensating groove, effectively can unload the pressure that piston ring is subject to, reduce the wearing and tearing because pressure increase causes piston ring, extend its working life.
2, the body of main piston ring and interior sub-piston ring is made up of teflon, and polyether-ether-ketone is filled with in body, the resistant to elevated temperatures temperature range of teflon body is 250 ~ 300 DEG C, 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 combinations can effectively reduce the friction factor of piston ring, the resistance to high temperature that improve 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 1-main piston ring, 2-interior sub-piston ring, 3-otch, 4-" U " type compensating grooves, the outer rim side of 11-main piston ring, the inner ring side of 12-main piston ring, the outer rim side of 21-interior sub-piston ring, the inner ring side of 22-interior sub-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 is equal, includes the body be made up of polytetrafluoroethylmaterial material and is filled in intrinsic polyether-ether-ketone.Main piston ring 1 and interior sub-piston ring 2 are provided with otch 3, and two otch 3 stagger setting mutually.The intermediate portion of main piston ring 1 upper-end surface caves inward into a groove, form the main piston ring 1 with outer rim side 11 and inner ring side 12, wherein outer rim side 11 height value of main piston ring 1 is 2 times of inner ring side 12 height value, inner ring side 12 height value is equal with the distance value between outer rim side 11, inner ring side 12, also equal 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 height value of inner ring side, the ratio of one-tenth-value thickness 1/10 of outer rim side and the distance values of inner ring side and the ring between outer rim side and inner ring side is: 2:1:1:1.The intermediate portion of interior sub-piston ring 2 upper-end surface caves inward into a groove, formed with sub-piston ring 2 in outer rim side 21 and inner ring side 22, wherein outer rim side 21 height value of interior sub-piston ring 2 is 1/2 of inner ring side 22 height value, inner ring side 22 height value and outer rim side 21, distance value between inner ring side 22 is equal, also equal with the one-tenth-value thickness 1/10 of the ring of interior sub-piston ring 2 groove, make the height value of the outer rim side on interior sub-piston ring 2, the height value of inner ring side, the ratio of the one-tenth-value thickness 1/10 of the distance values of outer rim side and inner ring side and the ring between outer rim side and inner ring side is: 1:2:1:1.The external cylindrical surface of main piston ring 1 offers " U " type compensating groove 4.
Piston ring is by combinationally use and contour main piston ring and interior sub-piston ring form, and due to outer rim side height value, inner ring side height value, relation between outer rim side and the one-tenth-value thickness 1/10 of the distance values of inner ring side and the ring between outer rim side and inner ring side, after main piston ring and interior sub-piston ring are installed, both both ends of the surface are all concordant, thus mutually can carry out shutoff in the effective gap to its incision, 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, the friction factor that thus can effectively reduce piston ring, the resistance to high temperature that improve piston ring, wear-resisting property; In addition, offer " U " type compensating groove at the external cylindrical surface of main piston ring, during operative scenario, can effectively unload its pressure, the wearing and tearing that the change reducing 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 inner ring side 12 of main piston ring 1 snaps in the groove between the outer rim side 21 of interior sub-piston ring 2, inner ring side 22, 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, inner ring side 12.Due to the height value of the outer rim side 11 on main piston ring 1, the height value of inner ring side 12, the ratio of the one-tenth-value thickness 1/10 of the distance values of outer rim side 11 and inner ring side 12 and the groove ring between outer rim side 11 and inner 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 inner ring side, the ratio of the one-tenth-value thickness 1/10 of the distance values of outer rim side and inner ring side and the ring between outer rim side and inner 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, thus mutually can carry out shutoff in the effective gap to its incision, improve the sealing of piston ring.
Claims (1)
1. Combined compressor piston ring, comprise and combinationally using and contour main piston ring and interior sub-piston ring, main piston ring and interior sub-piston ring all offer otch, two otch stagger setting mutually, it is characterized in that: the intermediate portion, upper-end surface of main piston ring and interior sub-piston ring offers groove, and main piston ring is connected by groove fit with interior sub-piston ring, 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 inner ring side height value, the outer rim side height value of interior sub-piston ring is 1/2 of inner ring side height value, the outer rim side of main piston ring and interior sub-piston ring, the all identical and distance value equaled between outer rim side and inner ring side of the one-tenth-value thickness 1/10 of inner ring side, main piston ring and interior sub-piston ring comprise the body be made up of teflon and are 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 CN103696941A (en) | 2014-04-02 |
| CN103696941B true 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 |
|---|---|
| CN103696941A (en) | 2014-04-02 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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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 |