CN106439023B - A kind of cosine curve type mechanical seal end surface structure - Google Patents
A kind of cosine curve type mechanical seal end surface structure Download PDFInfo
- Publication number
- CN106439023B CN106439023B CN201610607046.9A CN201610607046A CN106439023B CN 106439023 B CN106439023 B CN 106439023B CN 201610607046 A CN201610607046 A CN 201610607046A CN 106439023 B CN106439023 B CN 106439023B
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- Prior art keywords
- curved groove
- cosine curve
- groove
- seal face
- mechanical seal
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- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000012856 packing Methods 0.000 claims abstract description 7
- 230000000737 periodic effect Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 23
- 239000002245 particle Substances 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 8
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3424—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with microcavities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
- F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
- F16J15/3428—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with a wavy surface
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
A kind of cosine curve type mechanical seal end surface structure, rotating ring and stationary ring including mechanical seal, the seal face outer end of the rotating ring and described stationary ring is upstream as high-pressure side, and seal face the inner is downstream as low-pressure side, and seal face low-pressure side is provided with smooth and continuous ring packing dam；Seal face high-pressure side is provided with multiple periodic distribution curved grooves, and the one end open of curved groove extends to the upstream of seal face, and the other end of curved groove is located at the upstream of ring dam, and the both sides of each curved groove are equipped with symmetrical microflute；Unslotted region is provided with sealing weir between seal face is located at ring dam upstream curved groove.The beneficial effects of the invention are as follows：Reflowing result is obvious, and slip is small, can apply to various media, and anti-solid particle ability is strong, quiet dynamic pressure effect is good, can be with frequent starting and bidirectional rotation.
Description
Technical field
The present invention relates to a kind of cosine curve type mechanical seal end surface structure, belong to fluid seals technology field.
Background technology
Shaft end seal is critical component basic in various rotary type fluid machines.Non-contact mechanical seal is with it at present
Excellent performance has turned into the preferred shaft end seal of high parameter rotary type fluid machine.To improve the reliable operation of mechanical seal
Property, strengthen the greasy property of seal face, eliminate end wear, reduce coefficient of friction, usually in the end face of rotating ring or stationary ring
It is upper that certain Surface Texture or type groove are set, make mechanical seal hydrodynamic effect and hydrostatic effects be combined to form face opening
Power, make to form complete fluid lubrication liquid film between dynamic and static ring end face, produce certain fluid film rigidity, prevent sealing surface from running
During due to external disturbance cause end face to be bonded, cause dry friction, avoid end wear.But at the same time with end
Surface current body film thickness or the increase in gap, larger slip will be caused.
At present, conventional sealing device has dry gas seals and upstream pumping mechanical seal etc., but this advanced sealing of two classes
Technology is required to use Double End or tandem mechanical seal structure, therefore adds use cost, reduces the reliable of sealing
Property, and harsher is required to accessory system.Recently, United States Patent (USP) US7194803, which discloses a kind of end face type groove, has pump
The laser face end face seal of backflow functionality is sent, on this basis, domestic patent ZL200920043048.5, which discloses one kind, to be had
The mechanical seal of similar functions.
The content of the invention
In order to overcome the reflowing result unobvious sealed in the prior art, anti-solid particle ability, poor sealing performance
Deficiency, a kind of reflowing result of present invention offer is obvious, and slip is small, can apply to various media, and anti-solid particle ability is strong, quiet
Dynamic pressure effect is good, can be with a kind of cosine curve type mechanical seal end surface structure of frequent starting and bidirectional rotation.
A kind of cosine curve type mechanical seal end surface structure of the present invention, include the rotating ring and stationary ring of mechanical seal,
The seal face outer end of the rotating ring and described stationary ring is upstream as high-pressure side, and seal face the inner is as low-pressure side
Downstream, it is characterised in that：Described seal face low-pressure side is provided with smooth and continuous ring packing dam；Described seal face
High-pressure side is provided with multiple periodic distribution curved grooves, and described curved groove is circumferentially arranged into seal face along corresponding seal face
Center is the annular in the center of circle, and the side line of rabbet joint of curved groove is the cosine curve of half period, and the symmetry axis edge of cosine curve
Seal face radial distribution, for the opening of cosine curve positioned at the upstream of seal face, the summit of cosine curve is located at ring dam
Upstream, and the both sides of each curved groove are equipped with symmetrical microflute；Described seal face is located at ring dam upstream song
Unslotted region is provided with the sealing weir for current limliting and static seal between wire casing.
Described curved groove be etc. deep type groove radially in ladder is convergent or the convergent convergence type groove of gradual change, or
It is from cosine curve to the convergent convergence type groove of its symmetrical center line gradual change.
The periodicity of curved groove is：6~20.
The groove depth scope of the curved groove is：1~30 μm.
When sealing medium is liquid, groove depth scope is：10~30 μm.
When sealing medium is gas, groove depth scope is：1~10 μm.
The microflute is symmetrically distributed in the both sides of curved groove, and microflute is drawn close to curved groove, the microflute radial dimension and week
The radial direction or circumferential size of curved groove are respectively less than to size.
The shape of the microflute includes polygon, circle, ellipse and curl polygon.
The microflute is polygon and curl polygon, then the polygon and curl polygon are while should be with seals dam area
Tangent or coincidence.
The width of the curved groove is wr, wherein 0<wr<W, w are seal face width.
The width of the curved groove is wr=1~6mm.
The side line of rabbet joint of described curved groove can also be class cosine curve, including sine curve, cosine curve or with
Chevron curve as sine and cosine class of a curve.
The operation principle of the present invention：Segment fluid flow between seal face in fluid film under pressure difference stream and shear flow effect,
Downstream inner radius is flowed to, while lubricates end face, forms leakage stream.A part of fluid enters longitudinal cosine type curved groove, more than upstream side
Chordwise curve channel opening is larger, can form stronger hydrostatic pressure effect, and downstream side is gradually reduced, and can effectively reduce and let out
Leakage.Longitudinal cosine type curved groove is radially in a different manner all in convergence gap, therefore longitudinal cosine type curved groove root can produce significantly
Hydrodynamic effect can effectively improve bearing capacity to form higher-pressure region, simultaneously because the presence of both sides micropore or microflute
Pumping effect can be produced so that leakage greatly reduces.Because longitudinal cosine type curved groove has the profile symmetrically to smoothly transit,
Relatively easily the solid particle in groove can be taken out of, substantially reduce the abrasion of seal face, while increase seal face
The exchange of fluid and medium side liquid, the temperature of seal face can be effectively reduced.The microflute or micro- of longitudinal cosine type curved groove both sides
Bottom land fluid can also be pumped in addition to fluid dynamic and static pressure effect is provided, partly make up fluid caused by pressure difference stream by hole to high-pressure side
Leakage.In physical dimension under the same conditions, mechanical sealing of the invention is close compared to similar Hydrodynamic pressure type machinery
Envelope, on the premise of enough hydrodynamic effects are ensured so that pumping effect greatly enhances, and can keep higher stream
Body film bearing capacity and fluid film rigidity, have excellent lubrication effect, substantially reduce sealing fluid to low-pressure side
Leakage rate and end-face friction heat, while also there is stronger flushing action, improve the ability of anti-solid particle, the operation of sealing
Reliability strengthens, and slip declines.
Beneficial effects of the present invention：
(1) present invention is using longitudinal cosine type curved groove and the mechanical seal end surface structure of micropore/microflute combining structure, due to type
Groove sidewall molded line is using pumping effect and the cosine curve that works well of water conservancy diversion, and the fluid media (medium) between end face is in certain speed
There is down good backflow effeet, anti-solid particle ability is strengthened, and micropore/microflute of longitudinal cosine type curved groove both sides has upstream pump
Effect is sent, further improves backflow pump action, therefore improve the sealing of mechanical seal, reliability and stability；
(2) the longitudinal cosine type curved groove area distributions in the present invention are concentrated, and in upstream side, aperture area is big, are advantageous to static pressure effect
The raising answered, downstream side be gradually reduced, be advantageous to reduce leakage.Because longitudinal cosine type curved groove is radially in gap is restrained, together
Shi Suoshu longitudinal cosine types curved groove can be radially in ladder is convergent or the convergent convergence type groove of gradual change, it is or bent from cosine
Line uses the mechanical seal of the invention energy under normal operating condition to the convergent convergence type groove of its symmetrical center line gradual change
Sufficiently large hydrodynamic effect and liquid film bearing capacity are enough produced, improves the stabilization of mechanical seal under nominal operating conditions
Property；
(3) laser processing technology that cosine curve type etc. is deep, the processing of gradual change convergence type groove can use modern forward position, can
The deep trouths such as high-precision glossy bottom surface and gradual change type groove are obtained, substantially ensures the realization of function of the present invention；
(4) sealing device made of sealing structure of the invention can realize bidirectional rotation, seal safe and reliable to operation, low pressure
Start and stop work well, service life length.
Brief description of the drawings
Fig. 1 is that (wherein, A represents high-pressure side to mechanical seal end surface structural representation of the invention；B represents low-pressure side).
Fig. 2 be the present invention curved groove part typical structure schematic diagram, wherein in figure curved groove for etc. deep type groove.
Fig. 3 is the part typical structure schematic diagram of the curved groove of the present invention, and curved groove is received for radially ladder wherein in figure
The convergence type groove held back.
Fig. 4 is the part typical structure schematic diagram of the curved groove of the present invention, and it is in radially gradual change that curved groove, which is, wherein in figure
Convergent convergence type groove.
Fig. 5 is the part typical structure schematic diagram of the curved groove of the present invention, and curved groove is from cosine curve two wherein in figure
The convergent convergence type groove of its lateral symmetrical center line.
Fig. 6 is the part typical structure schematic diagram (omitting curved groove, ring dam and sealing weir) of the microflute of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of cosine curve type mechanical seal end surface structure of the present invention of embodiment 1, include the rotating ring of mechanical seal
And stationary ring, the seal face outer end of the rotating ring and described stationary ring are upstream as high-pressure side, the conduct of seal face the inner
Low-pressure side is downstream, and the described low-pressure side of seal face 1 is provided with smooth and continuous ring packing dam 11；Described seal face
High-pressure side is provided with multiple periodic distribution curved grooves 12, and described curved groove 12 is circumferentially arranged into close along corresponding seal face
Sealing the annular that end face center is the center of circle, the side line of rabbet joint of curved groove 12 is the cosine curve of half period, and cosine curve
Symmetry axis is along seal face radial distribution, and positioned at the upstream of seal face, the summit of cosine curve is located at the opening of cosine curve
The upstream of ring dam 11, and the both sides of each curved groove 12 are equipped with symmetrical microflute 13；Described seal face 1
Unslotted region is provided with the sealing weir 14 for current limliting and static seal between the curved groove of ring dam upstream.
Described curved groove 12 such as is at the deep type groove Fig. 2 radially convergent in ladder convergence type groove Fig. 3 or gradual change
Type groove Fig. 4 is restrained, or from cosine curve to the convergent convergence type groove Fig. 5 of its symmetrical center line gradual change.
The periodicity of curved groove 12 is：6~20.
The groove depth scope of the curved groove 12 is：1~30 μm.
When sealing medium is liquid, groove depth scope is：10~30 μm.
When sealing medium is gas, groove depth scope is：1~10 μm.
The microflute 13 is symmetrically distributed in the both sides of curved groove 12, and microflute 13 is drawn close to curved groove, and the microflute 13 is radially
Size and circumferential size are respectively less than the radial direction or circumferential size of curved groove 12.
The shape of the microflute 13 includes polygon 131, circle 132, ellipse 133 and curl polygon 134.
The microflute 13 is polygon and curl polygon, then the polygon and curl polygon while should and seals dam
Area is tangent or overlaps.
The width of the curved groove 12 is wr, wherein 0<wr<W, w are seal face width.
The operation principle of the present invention：Segment fluid flow in 1 fluid film of seal face under pressure difference stream and shear flow effect,
Downstream inner radius is flowed to, while lubricates end face, forms leakage stream.A part of fluid enters longitudinal cosine type curved groove 12, in upstream side
Longitudinal cosine type curved groove 12 is open larger, can form stronger hydrostatic pressure effect, downstream side is gradually reduced, and can effectively subtract
Small leak.Longitudinal cosine type curved groove 12 is radially in a different manner all in convergence gap, therefore the root of longitudinal cosine type curved groove 12 can produce
Raw obvious hydrodynamic effect can effectively improve bearing capacity to form higher-pressure region, simultaneously because both sides microflute 13
In the presence of pumping effect can be produced so that leakage greatly reduces.Symmetrically smoothly transitted because longitudinal cosine type curved groove 12 has
Profile, relatively easily the solid particle in groove can be taken out of, substantially reduce the abrasion of seal face, while increase sealing
The exchange of the fluid and medium side liquid of end face, the temperature of seal face can be effectively reduced.The both sides of longitudinal cosine type curved groove 12
Microflute 13 also can pump bottom land fluid to high-pressure side, caused by partly making up pressure difference stream in addition to fluid dynamic and static pressure effect is provided
Fluid leaks.In physical dimension under the same conditions, mechanical sealing of the invention is compared to similar Hydrodynamic pressure type machine
Tool seals, on the premise of enough hydrodynamic effects are ensured so that pumping effect greatly enhances, and can keep higher
Fluid film bearing capacity and fluid film rigidity, there is excellent lubrication effect, substantially reduces and seals fluid to low pressure
Leakage rate and the end-face friction heat of side, while also there is stronger flushing action, the ability of anti-solid particle is improved, sealing
Operational reliability strengthens, and slip declines.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (9)
1. a kind of cosine curve type mechanical seal end surface structure, include the rotating ring and stationary ring of mechanical seal, the rotating ring and institute
The seal face outer end for the stationary ring stated is downstream as low-pressure side as high-pressure side i.e. upstream, seal face the inner, and its feature exists
In：Described seal face low-pressure side is provided with smooth and continuous ring packing dam；Described seal face high-pressure side is provided with more
Individual periodic distribution curved groove, described curved groove are circumferentially arranged into using seal face center as the center of circle along corresponding seal face
Annular, the side line of rabbet joint of curved groove is the cosine curve of half period, and the symmetry axis of cosine curve is along sealed end face diameter
To distribution, the opening of cosine curve is located at the upstream on ring packing dam positioned at the upstream of seal face, the summit of cosine curve, and
And the both sides of each curved groove are equipped with symmetrical microflute；Described seal face is located at ring packing dam upstream curved groove
Between unslotted region be provided with sealing weir for current limliting and static seal.
A kind of 2. cosine curve type mechanical seal end surface structure as claimed in claim 1, it is characterised in that：Described curved groove
Be etc. deep type groove radially in the convergent convergence type groove of ladder or the radially convergent convergence type groove of gradual change, or from remaining
Chord curve is to the convergent convergence type groove of its symmetrical center line gradual change.
A kind of 3. cosine curve type mechanical seal end surface structure as claimed in claim 2, it is characterised in that：The cycle of curved groove
Number is：6~20.
A kind of 4. cosine curve type mechanical seal end surface structure as claimed in claim 3, it is characterised in that：The curved groove
Groove depth scope is：1~30μm.
A kind of 5. cosine curve type mechanical seal end surface structure as claimed in claim 4, it is characterised in that：Sealing medium is liquid
During body, groove depth scope is：10~30μm.
A kind of 6. cosine curve type mechanical seal end surface structure as claimed in claim 4, it is characterised in that：Sealing medium is gas
During body, groove depth scope is：1~10μm.
A kind of 7. cosine curve type mechanical seal end surface structure as claimed in claim 1, it is characterised in that：The microflute is symmetrical
The both sides of curved groove are distributed in, microflute is drawn close to curved groove, and the microflute radial dimension is less than the radial dimension of curved groove, and week
The circumferential size of curved groove is respectively less than to size.
A kind of 8. cosine curve type mechanical seal end surface structure as claimed in claim 7, it is characterised in that：The shape of the microflute
Shape includes polygon, circle, ellipse and curl polygon.
A kind of 9. cosine curve type mechanical seal end surface structure as claimed in claim 8, it is characterised in that：The microflute is more
Side shape and curl polygon, then the polygon and curl polygon are while should or coincidence tangent with ring packing dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607046.9A CN106439023B (en) | 2016-07-28 | 2016-07-28 | A kind of cosine curve type mechanical seal end surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607046.9A CN106439023B (en) | 2016-07-28 | 2016-07-28 | A kind of cosine curve type mechanical seal end surface structure |
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| CN106439023B true CN106439023B (en) | 2018-03-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852241B2 (en) | 2019-02-04 | 2023-12-26 | Eagle Industry Co., Ltd. | Sliding component |
| US11852244B2 (en) | 2019-02-04 | 2023-12-26 | Eagle Industry Co., Ltd. | Sliding component and method of manufacturing sliding member |
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| JP7179430B2 (en) | 2018-01-12 | 2022-11-29 | イーグル工業株式会社 | sliding parts |
| EP3748205A4 (en) | 2018-02-01 | 2021-11-10 | Eagle Industry Co., Ltd. | Sliding parts |
| CN110500409B (en) * | 2019-09-11 | 2024-06-07 | 浙江工业大学 | Micro-convex body cluster surface mechanical seal with function of reducing microbial adhesion |
| CN110899445B (en) * | 2019-12-17 | 2021-08-13 | 浙江普兴电子科技有限公司 | Mold and method for preparing sine type deployable sealing structure by spinning process |
| US11913454B2 (en) | 2020-07-06 | 2024-02-27 | Eagle Industry Co., Ltd. | Sliding component |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205978439U (en) * | 2016-07-28 | 2017-02-22 | 浙江工业大学 | Cosine curve type mechanical seal terminal surface structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07117167B2 (en) * | 1991-05-09 | 1995-12-18 | 日本ピラー工業株式会社 | Non-contact mechanical seal device |
| CN101603597B (en) * | 2009-06-30 | 2013-03-06 | 张家港市金鹰密封件厂 | Friction ring of mechanical sealing device |
| CN201771741U (en) * | 2010-06-30 | 2011-03-23 | 上海乐合流体机械有限公司 | Mechanical seal device for high speed pump |
| CN202327105U (en) * | 2011-11-09 | 2012-07-11 | 四川日机密封件股份有限公司 | Mechanical sealing device for fixed taper type waveform curved surface |
| CN202867843U (en) * | 2012-11-12 | 2013-04-10 | 西华大学 | Mechanical sealing device with depthkeeping ratio step groove end face sealing ring |
| CN102927282A (en) * | 2012-11-12 | 2013-02-13 | 西华大学 | Mechanical sealing device provided with depth-keeping ratio step groove end face sealing rings |
| CN103122998B (en) * | 2013-02-26 | 2015-10-28 | 浙江工业大学 | Imitative sharkskin streamline type groove end surface mechanical sealing structure |
| CN104265900B (en) * | 2014-08-06 | 2016-05-18 | 浙江工业大学 | The imitative bird wing-shaped type groove structure of bidirectional rotation gas sound die mould mechanical seal |
-
2016
- 2016-07-28 CN CN201610607046.9A patent/CN106439023B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205978439U (en) * | 2016-07-28 | 2017-02-22 | 浙江工业大学 | Cosine curve type mechanical seal terminal surface structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11852241B2 (en) | 2019-02-04 | 2023-12-26 | Eagle Industry Co., Ltd. | Sliding component |
| US11852244B2 (en) | 2019-02-04 | 2023-12-26 | Eagle Industry Co., Ltd. | Sliding component and method of manufacturing sliding member |
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| CN106439023A (en) | 2017-02-22 |
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