CN203641506U - Tilted gradually-changed porous end surface non-contact mechanical seal structure - Google Patents
Tilted gradually-changed porous end surface non-contact mechanical seal structure Download PDFInfo
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- CN203641506U CN203641506U CN201320509534.8U CN201320509534U CN203641506U CN 203641506 U CN203641506 U CN 203641506U CN 201320509534 U CN201320509534 U CN 201320509534U CN 203641506 U CN203641506 U CN 203641506U
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- gradual change
- hole
- face
- inclination
- mechanical seal
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Abstract
The utility model discloses a tilted gradually-changed porous end surface non-contact mechanical seal structure. The tilted gradually-changed porous end surface non-contact mechanical seal structure comprises a moving ring and a static ring which are sealed mechanically, wherein one sides of the end surfaces of the moving ring and the static ring are high-pressure sides, namely upstreams; the other sides of the end surfaces of the moving ring and the static ring are low-pressure sides, namely downstreams; tilted gradually-changed holes which are distributed symmetrically about a rotation center are formed in the end surface of at least one of the moving ring and the static ring to form a gradually-changed hole annular band; the queues of the gradually-changed holes are arranged in tilted straight lines which form tilt angles with the diameter of the end surface; the tilt angles of between queue and the diameter of the end surface are equal; the diameters of the gradually holes in each queue are gradually reduced from the high-pressure sides, namely the upstreams, to the low-pressure sides, namely the downstreams; the sizes of the gradually-changed holes positioned on the same radius are the same; annular seal dams with smooth planes are arranged on the upstreams and the downstreams of the end surfaces of the seal rings. The tilted gradually-changed porous end surface non-contact mechanical seal structure has high abrasion resistance, high lubricating capacity, high opening performance, high anti-interference capacity and low leakage rate, and can be suitable for sealing various types of gas and liquid.
Description
(1) technical field
What the utility model was related is the face seals of running shaft, is applicable to the shaft end seal device of various compressors, pump and the still rotating machinery rotating shafts such as stirrer, belongs to mechanical end face seal technical field.
(2) background technique
At present, the rotating shaft sealing of fluid machinery often adopts mechanical seal, along with the develop rapidly of petroleum chemical industry, requires mechanical seal to have higher stability and long lifetime.Non-contact mechanical seal is with its dynamic pressure function admirable, friction power loss is low, lubricating end surface is effective, sealability is stable and be more and more subject to the favor of petrochemical industry, but at present some noncontact seal end-face structures of exploitation are as one-way spiral groove, straight-line groove, two-way T-shaped groove, two-way U-shaped grooves etc. exist leak-down rate large, and larger leakage rate is at some special occasions, as: the deciding factor that limits its application under the operating modes such as poisonous medium, inflammable and explosive medium, can be become; And on ore deposit, metallurgy, building, the contour solid particle occasion of petrochemical industry, the hard abrasive material in medium also easily gathers and end face is produced to wearing and tearing at groove root, causes seal failure.For this reason, Etsion.I at first model utility a kind of micro-pore face be applied to pump class I liquid I gland seal device, and current both at home and abroad existing multinomial this type of patent (as: USA Patent 6,046,430; USA Patent6,341,782; World patent WO02093046; Chinese patent: 200510038704.9; 200910153312.5) still because designed microcellular structure in current patent has identical physical dimension, from high pressure side to low voltage side, do not form convergence type runner, therefore hydrodynamic effect is poor, voltage endurance capability is not strong, thereby make the fluid film bearing capacity of seal face limited, easily there are the contact friction wearing and tearing of end face, offset to a great extent the anti-attrition advantage of micropore.Therefore researching and developing a kind of seal face structure opens performance and greasy property, reduces end face frictional wear and leak-down rate becomes a key issue in mechanical seal strengthening end face dynamic pressure.
(3) summary of the invention
The utility model will overcome existing one-way spiral groove and straight-line groove, two-way T-shaped groove, U-shaped groove or arc groove etc. exist leak-down rate large, the shortcoming of anti-solid particle ability and rub resistance wearing and tearing ability, simultaneously poor in order to overcome microporous end surface fluid dynamic pressure effect under low speed or high pressure, the shortcoming that voltage endurance capability and antijamming capability are inadequate, a kind of non-contact mechanical seal structure that can be practically applicable to various conditions and medium is provided---inclination gradual change micro-pore face non-contact mechanical seal structure, it is good that this structure has dynamic pressure effect, anti-solid particle ability and rub resistance wearing and tearing ability are strong, leak-down rate is low, lubricating end surface is effective, voltage endurance capability and antijamming capability are strong, long service life.
The beneficial effects of the utility model are: compare with spiral chute or straight-line groove or arc groove structure; solid particle or other abrasive material of different sizes can be received in described gradual change hole; the storage capacity of water of oiling agent and the linear velocity of this present position, hole height are corresponding, can avoid high frictional heat to produce and make end face have good wear resistance and lubricating ability.Compared with equal diameter micro-pore face, therefore described gradual change hole rolls downstream tiltedly has pump action downstream, and arrange along circumferential and radial skew, thereby make shear flow flow to consistent sensing downstream side with pressure reduction stream, therefore there is stronger dynamic pressure and open performance, thereby avoided the fretting wear of end face; Described gradual change hole is from upstream to downstream size and reduces gradually, radially becomes convergence shape to arrange, and therefore has stronger antijamming capability and leak-down rate also less.
The technical solution of the utility model:
Inclination gradual change micro-pore face non-contact mechanical seal structure, it comprises rotating ring, the stationary ring of mechanical seal, one side of described rotating ring and stationary ring end face is that high pressure side is upstream, the opposite side of described rotating ring and stationary ring end face is that low voltage side is downstream, it is characterized in that: in described rotating ring or stationary ring, have at least on the end face of a seal ring and have the inclination gradual change hole symmetrical according to rotating center, form gradual change orifice ring band; The queue in described gradual change hole is arranged in the angled straight lines that becomes tilt angle with the diameter of described end face, and the tilt angle of each queue equates; Low voltage side is swum in gradual change hole in described queue from high pressure side be that aperture, downstream reduces gradually; Be positioned at the measure-alike of gradual change hole in same radius; Upstream and downstream on the end face of described seal ring is provided with the ring packing dam of smooth flat.
The inclination β span of described queue is 0～90 °, and wherein β is the angle between the tangent line of gradual change hole queue place straight line and this straight line and described end face circumference intersection point place circumference, and the β of each queue angled straight lines all equates; The major axis tiltangleθ span in described gradual change hole is 0～180 °, and wherein θ is the angle between major axis and the described tangent line in gradual change hole.
Further, the radial length of described gradual change orifice ring band is defined as a=(r than a
o-r
g)/(r
o-r
i), wherein r
i, r
obe respectively the interior outer radius of perforate end face, r
gfor the least radius of end face aperture area; Described radial length is 0.4～1 than the span of a.
Further, described gradual change hole single queue comprises 3～20 gradual change holes, is preferably 5～10.
Further, it is 0.1～5mm that described gradual change hole is positioned on high-tension side hole major axis, and the ratio of long and short axle is 1～10; The hole major axis that described gradual change hole is positioned at low voltage side is 0.05～1mm, and the ratio of long and short axle is 1～10; The gradual change amplitude of the physical dimension in described gradual change hole is 0.05～1mm; Equidistantly equating of adjacent gradual change hole in described queue,, the spacing between adjacent two holes is 0.05～1mm.
Further, in the time that sealing medium is liquid, the hole depth d in described gradual change hole is 0.01～1.5mm, and preferred value is 0.05～1.2mm; In the time that sealing medium is gas, the hole depth d in described gradual change hole is 1～18 μ m, and preferred value is 3～10 μ m.
Further, its hole depth of described gradual change hole queue radially shoals gradually from high pressure side to low voltage side, and in the time that sealing medium is liquid, described gradual change hole is 0.05～1.5mm on high-tension side hole depth d, be 0.01～0.5mm in the hole depth of low voltage side, gradual change amplitude is 0.01～0.25mm; In the time that sealing medium is gas, described gradual change hole is 3～12 μ m on high-tension side hole depth d, is 1～5 μ m in the hole depth of low voltage side, and gradual change amplitude is 0.5～1 μ m.
Equidistantly equating of adjacent gradual change hole in further described queue,, the spacing between adjacent two holes is 0.05～1mm.
Further: described gradual change hole hole shape is one of following: circle, triangle, square, ellipse, rhombus, rectangular or Hexagon.
Further: described inclination gradual change hole queue mode for cloth is one of following: angled straight lines, circular arc line or helix form.
Further: described inclination gradual change micro-pore face by along circumferentially and radial direction rationally arrange and the inclination in gradual change hole itself, can realize the bidirectional rotation of seal face.
Principle of the present utility model:
In the time that axle rotates, described inclination gradual change micro-pore face non-contact mechanical seal structure one side is due to the directivity in hole self, under tangential rotating speed cutting effect, fluid will flow along hole long axis direction, make fluid constantly accumulate stack at long axis direction, be subject to continuous compression, pressure increases gradually, thereby forms obvious dynamic pressure effect; Arrange along circumferential and radial skew in gradual change hole on the other hand, have and be similar to convergence angled straight lines groove structure, make shear flow all point to low voltage side consistent with pressure reduction flow path direction, therefore this structure can form stronger dynamic pressure opening force, can under low speed, high pressure, seal face be opened fast, thereby make seal face form full-film lubrication, avoided the fretting wear between end face.
Sealing structure is provided with a sealing dam in high pressure side, thereby has good parking sealer performance, and can stop the media such as solid particle to enter seal face.After having particle to enter seal face, the effect of receiving can be played in gradual change hole, effectively brings into play the ability of the anti-solid particle in hole, and gradual change hole also can store oiling agent, therefore this structure rub resistance wearing and tearing ability is strong and high lubricating effect; Also be provided with a level and smooth sealing dam structure in low voltage side, can further stop the fluid-encapsulated leakage of sealing.
Sealing structure radially aperture reduces gradually, hole depth radially also reduces gradually, thereby radially form the fluid film of convergence, improve the fluid active and static pressure characteristic of sealing, therefore increase voltage endurance capability and the antijamming capability of sealing, also improved the unlatching/stopping performance of sealing and the adaptive ability to variable working condition simultaneously.
Advantage of the present utility model and beneficial effect:
The utility model provides a kind of sealing configuration that can be practically applicable to various conditions and medium, connecing lower seal with tradition compares, its tool has the following advantages: (1) is than microporous end surface, this inclination gradual change micro-pore face non-contact mechanical seal structure one side is due to the directivity in hole self, under tangential rotating speed cutting effect, fluid will flow along hole long axis direction, make fluid constantly accumulate stack at long axis direction, be subject to continuous compression, pressure increases gradually, thereby forms obvious dynamic pressure effect; Arrange along circumferential and radial skew in gradual change hole on the other hand, have and be similar to convergence angled straight lines groove structure, therefore having stronger dynamic pressure, this structure opens performance, can under low speed, high pressure, seal face be opened fast, thereby make seal face form full-film lubrication, avoided the fretting wear of end face.(2) compare one-way spiral groove, straight-line groove, two-way T-shaped groove, the structures such as two-way U-shaped groove, sealing structure upstream side is provided with sealing dam structure can well prevent that solid particle from entering seal face; After having particle to enter seal face, the effect of receiving can be played in gradual change hole, effectively brings into play the ability of the anti-solid particle in hole, and gradual change hole also can store oiling agent, therefore this structure rub resistance wearing and tearing ability is strong and high lubricating effect; And this structure downstream side is also provided with a sealing dam, thereby there is good parking sealer performance, can realize the low leakage of seal face.(3) this inclination gradual change micro-pore face non-contact mechanical seal structure radially reduces in aperture gradually, hole depth radially also reduces gradually, thereby radially form the fluid film of convergence, improve the fluid active and static pressure characteristic of sealing, therefore increase voltage endurance capability and the antijamming capability of sealing, also improved the unlatching/stopping performance of sealing and the adaptive ability to variable working condition simultaneously.
(4) brief description of the drawings
Fig. 1 is inclination gradual change micro-pore face non-contact mechanical seal structural representation of the present utility model.
Fig. 2 is inclination gradual change micro-pore face non-contact mechanical seal structure one-period schematic diagram of the present utility model.
Fig. 3 is that the dark and convergence of the grade of inclination gradual change micro-pore face non-contact mechanical seal structure of the present utility model deepens schematic diagram.
Fig. 4 is difformity inclination gradual change micro-pore face non-contact mechanical seal structural representation of the present utility model.
Fig. 5 is different arrangement mode inclination gradual change micro-pore face non-contact mechanical seal structural representation of the present utility model.
Fig. 6 is hole of the present utility model queue by the inclination gradual change micro-pore face non-contact mechanical seal structural representation that isomorphic line is not arranged.
Fig. 7 is bidirectional rotation inclination gradual change micro-pore face non-contact mechanical seal structural representation of the present utility model.
(5) specific embodiments
Below in conjunction with accompanying drawing, the utility model is done further deeply:
Embodiment 1:
Referring to Fig. 1,2,3:
Inclination gradual change micro-pore face non-contact mechanical seal structure, it comprises rotating ring, the stationary ring of mechanical seal, one side of described rotating ring and stationary ring end face is that high pressure side is upstream, the opposite side of described rotating ring and stationary ring end face is that low voltage side is downstream, it is characterized in that: in described rotating ring or stationary ring, have at least on the end face of a seal ring and have the inclination gradual change hole symmetrical according to rotating center, form gradual change orifice ring band; The queue in described gradual change hole is arranged in the angled straight lines that becomes tilt angle with the diameter of described end face, and the tilt angle of each queue equates; Low voltage side is swum in gradual change hole in described queue from high pressure side be that aperture, downstream reduces gradually; Be positioned at the measure-alike of gradual change hole in same radius; Upstream and downstream on the end face of described seal ring is provided with the ring packing dam of smooth flat.
The inclination β span of described queue is 0～90 °, and wherein β is the angle between the tangent line of gradual change hole queue place straight line and this straight line and described end face circumference intersection point place circumference, and the β of each queue angled straight lines all equates; The major axis tiltangleθ span in described gradual change hole is 0～180 °, and wherein θ is the angle between major axis and the described tangent line in gradual change hole.
The radial length of described gradual change orifice ring band is defined as a=(r than a
o-r
g)/(r
o-r
i), wherein r
i, r
obe respectively the interior outer radius of perforate end face, r
gfor the least radius of end face aperture area; Described radial length is 0.4～1 than the span of a.
Described gradual change hole single queue comprises 3～20 gradual change holes, is preferably 5～10.
It is 0.1～5mm that described gradual change hole is positioned on high-tension side hole major axis, and the ratio of long and short axle is 1～10; The hole major axis that described gradual change hole is positioned at low voltage side is 0.05～1mm, and the ratio of long and short axle is 1～10; The gradual change amplitude of the physical dimension in described gradual change hole is 0.05～1mm; Equidistantly equating of adjacent gradual change hole in described queue,, the spacing between adjacent two holes is 0.05～1mm.
In the time that sealing medium is liquid, the hole depth d in described gradual change hole is 0.01～1.5mm, and preferred value is 0.05～1.2mm; In the time that sealing medium is gas, the hole depth d in described gradual change hole is 1～18 μ m, and preferred value is 3～10 μ m.
Gradual change holes in described queue etc. are dark, and in the time that sealing medium is liquid, the hole depth d in described gradual change hole is 0.01～1.5mm, and preferred value is 0.05～1.2mm; In the time that sealing medium is gas, the hole depth d in described gradual change hole is 1～18 μ m, and preferred value is 3～10 μ m.
The latter, its hole depth of described gradual change hole queue radially shoals gradually from high pressure side to low voltage side, and in the time that sealing medium is liquid, described gradual change hole is 0.05～1.5mm on high-tension side hole depth d, be 0.01～0.5mm in the hole depth of low voltage side, gradual change amplitude is 0.01～0.25mm; In the time that sealing medium is gas, described gradual change hole is 3～12 μ m on high-tension side hole depth d, is 1～5 μ m in the hole depth of low voltage side, and gradual change amplitude is 0.5～1 μ m.
Embodiment 2:
Referring to Fig. 4: described gradual change hole hole shape can be one of following: circle, triangle, square, ellipse, rhombus, rectangular or Hexagon.
All the other structures of the present embodiment are identical with embodiment 1 with implementation.
Embodiment 3:
Referring to Fig. 1,5: described gradual change elliptical aperture itself, can be around hole is centroclinal separately with directivity, and tiltangleθ scope is 0～180.The arrange consistent downstream side of all pointing to of direction of shear flow and pressure reduction stream in 1, under tangential rotating speed cutting effect, fluid will flow along hole long axis direction, make fluid constantly accumulate stack at long axis direction, be subject to continuous compression, pressure increases gradually, thereby the dynamic pressure forming is clearly opened performance from arranging 2 to arranging 6, along with low voltage side pumping hole count increases gradually, it is more obvious that thereby the fluid that makes high pressure side leak into low voltage side returns to again high pressure side, thereby leak-down rate is reduced gradually, 6 mesopores of wherein arranging all have pumping effect, therefore its leak-down rate is minimum, and the zero leakage between seal face can be realized in suitable adjusting angle of inclination.
All the other structures of the present embodiment are identical with embodiment 1 with implementation.
Embodiment 4:
Referring to Fig. 6: described inclination gradual change hole queue mode for cloth can be one of following: angled straight lines, circular arc line or helix form are arranged.
All the other structures of the present embodiment are identical with embodiment 1 with implementation.
Embodiment 5:
Referring to Fig. 7: described inclination gradual change micro-pore face by along circumferentially and radial direction rationally arrange and the inclination in gradual change hole itself, can realize the bidirectional rotation of seal face.
All the other structures of the present embodiment are identical with embodiment 1 with implementation.
Content described in this specification embodiment be only way of realization to the utility model design for example; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (10)
1. inclination gradual change micro-pore face non-contact mechanical seal structure, it comprises rotating ring, the stationary ring of mechanical seal, one side of described rotating ring and stationary ring end face is that high pressure side is upstream, the opposite side of described rotating ring and stationary ring end face is that low voltage side is downstream, it is characterized in that: in described rotating ring or stationary ring, have at least on the end face of a seal ring and have the inclination gradual change hole symmetrical according to rotating center, form gradual change orifice ring band; The queue in described gradual change hole is arranged in the angled straight lines that becomes tilt angle with the diameter of described end face, and the tilt angle of each queue equates; Low voltage side is swum in gradual change hole in described queue from high pressure side be that aperture, downstream reduces gradually; Be positioned at the measure-alike of gradual change hole in same radius; Upstream and downstream on the end face of described seal ring is provided with the ring packing dam of smooth flat.
2. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 1, it is characterized in that: the inclination β span of described queue is 0～90 °, wherein β is the angle between the tangent line of gradual change hole queue place straight line and this straight line and described end face circumference intersection point place circumference, and the β of each queue angled straight lines all equates; The major axis tiltangleθ span in described gradual change hole is 0～180 °, and wherein θ is the angle between major axis and the described tangent line in gradual change hole.
3. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 2, is characterized in that: the radial length of described gradual change orifice ring band is defined as a=(r than a
o-r
g)/(r
o-r
i), wherein r
i, r
obe respectively the interior outer radius of perforate end face, r
gfor the least radius of end face aperture area; Described radial length is 0.4～1 than the span of a.
4. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 3, is characterized in that: described gradual change hole single queue comprises 3～20 gradual change holes.
5. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 4, is characterized in that: in the time that sealing medium is liquid, the hole depth d in described gradual change hole is 0.01～1.5mm; In the time that sealing medium is gas, the hole depth d in described gradual change hole is 1～18 μ m.
6. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 5, it is characterized in that: its hole depth of described gradual change hole queue radially shoals gradually from high pressure side to low voltage side, in the time that sealing medium is liquid, described gradual change hole is 0.05～1.5mm on high-tension side hole depth d, be 0.01～0.5mm in the hole depth of low voltage side, gradual change amplitude is 0.01～0.25mm; In the time that sealing medium is gas, described gradual change hole is 3～12 μ m on high-tension side hole depth d, is 1～5 μ m in the hole depth of low voltage side, and gradual change amplitude is 0.5～1 μ m.
7. according to the inclination gradual change micro-pore face non-contact mechanical seal structure described in claim 5 or 6, it is characterized in that: the shape in described gradual change hole is one of following: ellipse, rectangle, rhombus, triangle or circle.
8. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 7, is characterized in that: it is 0.1～5mm that described gradual change hole is positioned on high-tension side hole major axis, and the ratio of long and short axle is 1～10; The hole major axis that described gradual change hole is positioned at low voltage side is 0.05～1mm, and the ratio of long and short axle is 1～10; The gradual change amplitude of the physical dimension in described gradual change hole is 0.05～1mm; Equidistantly equating of adjacent gradual change hole in described queue,, the spacing between adjacent two holes is 0.05～1mm.
9. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 8, is characterized in that: the queue mode for cloth in described inclination gradual change hole is one of following: angled straight lines, circular arc line or helix.
10. inclination gradual change micro-pore face non-contact mechanical seal structure according to claim 1, it is characterized in that: described inclination gradual change micro-pore face by along circumferentially and radial direction rationally arrange and the inclination in gradual change hole itself, can realize the bidirectional rotation of seal face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509534.8U CN203641506U (en) | 2013-08-20 | 2013-08-20 | Tilted gradually-changed porous end surface non-contact mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509534.8U CN203641506U (en) | 2013-08-20 | 2013-08-20 | Tilted gradually-changed porous end surface non-contact mechanical seal structure |
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|---|---|
| CN203641506U true CN203641506U (en) | 2014-06-11 |
Family
ID=50872751
Family Applications (1)
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|---|---|---|---|
| CN201320509534.8U Expired - Lifetime CN203641506U (en) | 2013-08-20 | 2013-08-20 | Tilted gradually-changed porous end surface non-contact mechanical seal structure |
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| CN (1) | CN203641506U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470762A (en) * | 2013-08-20 | 2013-12-25 | 浙江工业大学 | Inclined gradually varied porous end surface non-contact type mechanical sealing structure |
| CN111656065A (en) * | 2018-02-01 | 2020-09-11 | 伊格尔工业股份有限公司 | Sliding component |
| CN112412746A (en) * | 2019-08-23 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
| EP3653914A4 (en) * | 2017-07-14 | 2021-03-17 | Eagle Industry Co., Ltd. | Sliding parts |
| US11053975B2 (en) | 2017-05-19 | 2021-07-06 | Eagle Industry Co., Ltd | Sliding component |
| US11248707B2 (en) | 2017-05-19 | 2022-02-15 | Eagle Industry Co., Ltd | Sliding component |
| US11603934B2 (en) | 2018-01-12 | 2023-03-14 | Eagle Industry Co., Ltd. | Sliding component |
| US11708911B2 (en) | 2017-10-03 | 2023-07-25 | Eagle Industry Co., Ltd. | Sliding component |
| 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 |
| US11913454B2 (en) | 2020-07-06 | 2024-02-27 | Eagle Industry Co., Ltd. | Sliding component |
| US11933303B2 (en) | 2020-07-06 | 2024-03-19 | Eagle Industry Co., Ltd. | Sliding component |
-
2013
- 2013-08-20 CN CN201320509534.8U patent/CN203641506U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470762A (en) * | 2013-08-20 | 2013-12-25 | 浙江工业大学 | Inclined gradually varied porous end surface non-contact type mechanical sealing structure |
| US11248707B2 (en) | 2017-05-19 | 2022-02-15 | Eagle Industry Co., Ltd | Sliding component |
| US11053975B2 (en) | 2017-05-19 | 2021-07-06 | Eagle Industry Co., Ltd | Sliding component |
| EP3653914A4 (en) * | 2017-07-14 | 2021-03-17 | Eagle Industry Co., Ltd. | Sliding parts |
| US11035411B2 (en) | 2017-07-14 | 2021-06-15 | Eagle Industry Co., Ltd. | Sliding parts |
| US11708911B2 (en) | 2017-10-03 | 2023-07-25 | Eagle Industry Co., Ltd. | Sliding component |
| US11603934B2 (en) | 2018-01-12 | 2023-03-14 | Eagle Industry Co., Ltd. | Sliding component |
| CN111656065A (en) * | 2018-02-01 | 2020-09-11 | 伊格尔工业股份有限公司 | Sliding component |
| US11619308B2 (en) | 2018-02-01 | 2023-04-04 | Eagle Industry Co., Ltd. | Sliding components |
| 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 |
| CN112412746A (en) * | 2019-08-23 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
| CN112412746B (en) * | 2019-08-23 | 2022-07-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
| US11913454B2 (en) | 2020-07-06 | 2024-02-27 | Eagle Industry Co., Ltd. | Sliding component |
| US11933303B2 (en) | 2020-07-06 | 2024-03-19 | Eagle Industry Co., Ltd. | Sliding component |
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