CN107191715A - High temperature rotary joint - Google Patents
High temperature rotary joint Download PDFInfo
- Publication number
- CN107191715A CN107191715A CN201710526413.7A CN201710526413A CN107191715A CN 107191715 A CN107191715 A CN 107191715A CN 201710526413 A CN201710526413 A CN 201710526413A CN 107191715 A CN107191715 A CN 107191715A
- Authority
- CN
- China
- Prior art keywords
- adapter sleeve
- connecting tube
- high temperature
- rotary joint
- joint
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
- F16L27/0828—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings having radial bearings
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/80—Accommodating differential expansion of solar collector elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S2030/10—Special components
- F24S2030/15—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention discloses a kind of high temperature rotary joint, including, first joint, it includes the first connecting tube and the first metal bellows being fixedly connected with the first described connecting tube, and it is arranged on the first sealing ring of the first wavy metal tube end, second joint, it includes the second connecting tube and the second metal bellows being fixedly connected with the second described connecting tube, and is arranged on the second sealing ring of the second wavy metal tube end.Certain length and the metal bellows of rigidity is respectively welded in the anchor tip and swivel joint joint of the swivel joint of the present invention, and high-abrasive material sealing ring is welded again in the other end of metal bellows, after the completion of swivel joint assembling, sealing ring docks and bellows is had certain decrement, and then effectively utilize stroke after thermal expansion, required axial pre tightening force in sealing contact is supplied to, while the working space of the rotary components such as working media and bearing is independent.
Description
Technical field
The present invention relates to photo-thermal electro-technical field, more particularly to a kind of high temperature rotary joint.
Background technology
It is to be gathered solar radiation by tracking the linear parabolic mirror of solar motion that solar energy paraboloid trough type, which generates electricity,
Collect the technology that heat-transfer fluid is generated electricity that heated in the endothermic tube at parabola focal line.The key of slot type power station heat collecting field
Equipment mainly includes heat collector, endothermic tube and thermal storage device etc..It is the core of heat collector day by day to drive tracking system, is photo-thermal collection
Device makes full use of the guarantee of solar energy.By driving tracking system, photo-thermal collector can track the sun from sunrise to sunset.Rotation
Adapter is then that thermal-collecting tube is connected an essential part with fixed system pipeline, by using swivel joint, Ke Yiyan
The service life of long connection flexible pipe, the risk that reduction fused salt pipeline is leaked.
At present, traditional swivel joint is made up of parts such as inner and outer pipes, bearing, sealing ring and elastomers.Swivel joint makes
Used time, first fixed termination is connected with connecting line using screw thread or flange, then rotary joint rotating part is relied on into housing, axle
Hold, the component such as sealing ring is docked with anchor tip.When swivel joint works, the bearing being fixed between joint body inner and outer pipes can
Rotating against for anchor tip and swivel joint is realized, the sealing ring of bearing both sides keeps apart bearing with inner tube working media,
Sealed effect is reached simultaneously, and under the occasion that sealing property requires higher, elastomer is installed in sealing ring side more
Sealing ring axial force is supplied to, to improve sealing ring frictional force, and then improves sealing property.But, in high temperature, acid and alkali corrosion etc.
In complicated and severe working environment, the heat resistance of each assembly material is different with expansion and contraction so that poor sealing, soda acid sex work
Medium, which enters in bearing, causes clamping stagnation, corrosion and secondary leakage.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of high temperature rotary joint.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of high temperature rotary joint, including,
First joint, it includes the first connecting tube and the first wavy metal being fixedly connected with the first described connecting tube
Pipe, and it is arranged on the first sealing ring of the first wavy metal tube end,
Second joint, it includes the second connecting tube and the second wavy metal being fixedly connected with the second described connecting tube
Pipe, and it is arranged on the second sealing ring of the second wavy metal tube end,
Sleeve is connected, it includes being fixedly connected with the first described connecting tube and allows the first described metal bellows
The first adapter sleeve being inserted, second for being fixedly connected and being rotatably connected with the first adapter sleeve with the second described connecting tube
Adapter sleeve, the second described metal bellows passes through the second described adapter sleeve and makes the first sealing ring and the second seal ring seal
Docking.
Adpting flange is provided with the first described connecting tube to be fixedly connected with the first described adapter sleeve, described
Adpting flange is provided with two connecting tubes to be fixedly connected with the second described adapter sleeve.
Described connection sleeve is formed with atria in described sealing joint, and described atria is formed with excretion
Mouthful.
The first described adapter sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and described atria is connected by first
The shoulder of female connector and the spacer ring being fixedly connected with described enlarged diameter section are constituted.
Described enlarged diameter section end is formed with inner stopper, and the second described adapter sleeve is rotatably set by swivel bearing
Put at the opening of larger diameter end.
The second described adapter sleeve is formed with bulge loop inwardly projectingly, and described spacer ring is held in bulge loop outer surface.
Described the second adapter sleeve and described spacer ring keep spacing, are formed with the medial surface of described the second adapter sleeve
Ring groove.
The length of first metal bellows or the second metal bellows is in 30-80mm.
Described sealing ring is corresponding plane, domatic or cambered surface sealing pair.
The rigidity of first metal bellows or the second metal bellows is more than 100N/mm.
Compared with prior art, the beneficial effects of the invention are as follows：
Certain length and the gold of rigidity is respectively welded in the anchor tip and swivel joint joint of the swivel joint of the present invention
Belong to bellows, and high-abrasive material sealing ring is welded again in the other end of metal bellows, after the completion of swivel joint assembling, sealing ring
Dock and bellows is had certain decrement, and then by stroke after thermal expansion effectively using there is provided in sealing contact required
Axial pre tightening force, while the working space of the rotary components such as working media and bearing is independent.That is, it is directly close using pipeline
The structure type of docking is sealed, dependence of the components such as bearing to sealing property is eliminated；Under high-temperature work environment, wavy metal
Pipe not only can absorb the stroke of pipeline in swivel joint, and then increases the decrement of bellows, and hot environment is positively utilized
Under the stroke of each assembly material improve sealing property, more to improve assembling structure, to eliminate the components such as bearing in soda acid work
Make the dependence to sealing property in medium.
Brief description of the drawings
Fig. 1 show the structural representation of the high temperature rotary joint of the present invention；
Fig. 2 show the structural representation of the first joint；
Fig. 3 show the reserved notch schematic diagram of the first adapter sleeve.
Fig. 4 show sealing ring and docks the first schematic diagram.
Fig. 5 show sealing ring and docks the second schematic diagram.
Fig. 6 show sealing ring and docks the 3rd schematic diagram.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As illustrated, the high temperature rotary joint of the present invention includes,
First joint, it includes the first connecting tube 11 and the first metal wave being fixedly connected with the first described connecting tube 11
Line pipe 12, and it is fixedly installed on the first sealing ring 13 of the first wavy metal tube end,
Second joint, it includes the second connecting tube 21 and the second wavy metal being fixedly connected with the second described connecting tube
Pipe 22, and it is fixedly installed on the second sealing ring 23 of the second wavy metal tube end,
The connection sleeve of stainless steel, it includes being fixedly connected with the first described connecting tube and allows described the
The first adapter sleeve 31 that one metal bellows is inserted, is fixedly connected and can with the first adapter sleeve with the second described connecting tube
Second adapter sleeve 32 of rotatable connection, described the second metal bellows through the second described adapter sleeve and makes first close between two parties
Seal ring and the docking of the second seal ring seal.
Wherein, be to ensure overall sealing effectiveness, after mounting under normal temperature the first sealing ring and the second sealing interannular pressure
Press it is strong larger, typically in 2Mpa or more, when high-temperature molten salt is flowed through in inside, during such as 580 DEG C of high-temperature molten salts, two sealing interannulars
More than pressure can reach 4Mpa even.The metal bellows material is made up of high temperature resistant stainless steel, such as 304H, metal bellows
Wall thickness thickness is in 0.6-1mm, such as 0.8mm, and pitch is in 8-12mm, such as 10mm, and bulk metal Bellows Length is excellent in 30-80mm
40-70cm, such as 50cm, 60cm are selected, wavy metal pipe stiffness, which is more than to stretch in 100N/mm, range in stiffness, belongs to elastic deformation, nothing
Fatigue influence, can meet and use for a long time, and wavy metal length of tube is relevant with calculating required decrement, and sealing ring material is hard
Alloy, e.g., Si Taili stainless steels, metal bellows are realized with being fixedly connected for connecting tube using specialty welding.
The present invention is connected by connecting tube with exterior line, is such as connected with heat storage can loop or thermal-collecting tube, while two
The opposite end of individual connecting tube is fixedly installed, such as welded joints seal circle, then using connecting sleeve by the first joint and second
Joint axially position but it is rotatably connected and two sealing rings is constituted with inside extruding, is tightly connected using sealing ring extruding composition
The rotary type for forming this pipeline is tightly connected, i.e., be respectively welded in the fixation termination of swivel joint and rotating end joint
The metal bellows of certain length and rigidity, and high-abrasive material sealing ring is welded again in the other end of metal bellows, rotation connects
After the completion of head assembling, sealing ring is docked and bellows is had certain decrement, and then stroke after thermal expansion is effectively utilized,
Required axial pre tightening force in sealing contact is supplied to, while the working space of the rotary components such as working media and bearing is independently opened
Come.That is, the structure type of docking is directly sealed using pipeline, dependence of the components such as bearing to sealing property is eliminated；In height
Under warm working environment, metal bellows not only can absorb the stroke of pipeline in swivel joint, and then increases the compression of bellows
Amount, is positively utilized the stroke of each assembly material under hot environment to improve sealing property, more to improve assembling structure, to disappear
Except dependence of the components such as bearing in soda acid working media to sealing property.
Specifically, for ease of integrated connection, be provided with the middle part of described the first connecting tube 11 adpting flange 14 with
The first described adapter sleeve is fixedly connected, be provided with the second described connecting tube adpting flange with the second described adapter sleeve
It is fixedly connected.Meanwhile, end adpting flange is additionally provided with the outer end of the first connecting tube to be connected to whole pipeline.Exist simultaneously
The end of connecting tube is provided with flange 15, is connected by flange, can guarantee that preferable axiality.
Wherein, there be the connection of part first pipeline section the described inner side of adpting flange 14, the first connection pipeline section on the inside of this
End is welded with the first metal bellows, for enhancing bonding area, and the internal diameter at the end is identical with the first overall connecting tube,
It is preferred that the larger design of this section selection wall thickness, so also improves assembling, centering during the first adapter sleeve, second can be loaded now
Connecting tube design is similar, does not deploy description herein.
Further, described sealing ring is corresponding plane, domatic or cambered surface sealing pair.I.e. described sealing ring has three
Plant structure：The first is plane sealing structure, that is, it is that plane docks form to contact sealing surface；Second is conical surface sealing structure,
I.e. contact sealing surface is cone match form；The third is ball face sealing structure, that is, contacts sealing surface and match somebody with somebody for convex annular, concave spherical surface
Conjunction form, the obverse design of sealing ring, along with sealing ring after flexible bellow welding with, from centering, even more improving
Seal the frictional force and sealing property of loop interface.
Further, to prevent from gathering in adapter sleeve after leakage at sealing, described connection sleeve, such as the first connection
It is enclosed on described sealing joint and is formed with atria 33, described atria is formed with discharge port.Specifically, described first
Adapter sleeve includes the reduced diameter section and enlarged diameter section being coaxially disposed, and described enlarged diameter section end is formed with inner stopper, described
Second adapter sleeve can be rotatably set at the opening of larger diameter end by swivel bearing.
First adapter sleeve is designed using reducing type, and the rotatable axis for realizing two adapter sleeves using inner stopper is located by connecting,
Specifically, the attachment structure includes being arranged on the rolling bearing 41 of two connection inner rooms, and bearing neck bush 42 is arranged on rolling bearing
The bearing external bushing 43 in outside, is connected to position described bearing external bushing outer surface outer ring with the first described adapter sleeve
Hole back-up ring 44, and be connected with the second described adapter sleeve to position the axle of described axial outer bearing sleeve outer surface inner ring
With back-up ring 45, using two back-up rings, the stability and resistance to pressure of adapter sleeve connection is effectively ensured.
Further, bearing is constituted for the fused salt that avoids leakage influences, described atria by the first adapter sleeve platform
Shoulder and the spacer ring 34 being fixedly connected with described enlarged diameter section are constituted, and the second described adapter sleeve is formed with bulge loop inwardly projectingly
24, described spacer ring is held in bulge loop outer surface.
The independent design of atria is realized using spacer ring using variable diameter design, fused salt is further reduced directly to bearing
Corrode, moreover, forming bulge loop corresponding with described spacer ring on the second adapter sleeve, the bulge loop and spacer ring composition are sealedly same
When, centering is also provided, the operational effect of rotary sleeve is improved.
Further, the second described adapter sleeve keeps spacing to reduce CONTACT WITH FRICTION area with described spacer ring, described
The second adapter sleeve medial surface on be formed with ring groove 25, the ring groove reduces the transmission of internal heat outwards, meanwhile, also
Heater can be set in described ring groove to reduce the temperature drop of junction.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of high temperature rotary joint, it is characterised in that including,
First joint, it includes the first connecting tube and the first metal bellows being fixedly connected with the first described connecting tube, with
And it is arranged on the first sealing ring of the first wavy metal tube end,
Second joint, it includes the second connecting tube and the second metal bellows being fixedly connected with the second described connecting tube, with
And it is arranged on the second sealing ring of the second wavy metal tube end,
Sleeve is connected, it includes being fixedly connected with the first described connecting tube and allows described the first metal bellows insertion
First adapter sleeve therein, be fixedly connected with the second described connecting tube and with the first adapter sleeve is rotatably connected second is connected
Set, the second described metal bellows passes through the second described adapter sleeve and makes the first sealing ring and the second seal ring seal pair
Connect.
2. high temperature rotary joint as claimed in claim 1, it is characterised in that be provided with connection method in the first described connecting tube
The first adapter sleeve described in Lan Yiyu is fixedly connected, and adpting flange is provided with the second described connecting tube with described second
Adapter sleeve is fixedly connected.
3. high temperature rotary joint as claimed in claim 1, it is characterised in that described connection sleeve is in described sealing pair
The place of connecing is formed with atria, and described atria is formed with discharge port.
4. high temperature rotary joint as claimed in claim 3, it is characterised in that the first described adapter sleeve includes what is be coaxially disposed
Reduced diameter section and enlarged diameter section, what described atria was fixedly connected by the shoulder of the first adapter sleeve and with described enlarged diameter section
Spacer ring is constituted.
5. high temperature rotary joint as claimed in claim 4, it is characterised in that described enlarged diameter section end is formed with interior stop
Mouthful, the second described adapter sleeve can be rotatably set at the opening of larger diameter end by swivel bearing.
6. high temperature rotary joint as claimed in claim 4, it is characterised in that the second described adapter sleeve is formed inwardly projectingly
There is bulge loop, described spacer ring is held in bulge loop outer surface.
7. high temperature rotary joint as claimed in claim 4, it is characterised in that the second described adapter sleeve is protected with described spacer ring
Hold spacing, ring groove is formed with the medial surface of described the second adapter sleeve.
8. high temperature rotary joint as claimed in claim 1, it is characterised in that the first metal bellows or the second metal bellows
Length in 30-80mm.
9. high temperature rotary joint as claimed in claim 1, it is characterised in that described sealing ring is corresponding plane, domatic
Or cambered surface sealing pair.
10. high temperature rotary joint as claimed in claim 1, it is characterised in that the first metal bellows or the second wavy metal
The rigidity of pipe is more than 100N/mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526413.7A CN107191715A (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526413.7A CN107191715A (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107191715A true CN107191715A (en) | 2017-09-22 |
Family
ID=59881862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526413.7A Pending CN107191715A (en) | 2017-06-30 | 2017-06-30 | High temperature rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191715A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019106450A1 (en) * | 2017-12-01 | 2019-06-06 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
| ES2715513R1 (en) * | 2017-12-01 | 2019-07-19 | Umbra Meccanotecnica | High temperature fluid seal |
| CN112585364A (en) * | 2018-08-13 | 2021-03-30 | 采埃孚股份公司 | Joint and method for manufacturing such a joint |
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|---|---|---|---|---|
| CN102052772A (en) * | 2010-01-11 | 2011-05-11 | 刘盛里 | Slot type solar heat collector and heat collection tube |
| EP2525125A1 (en) * | 2011-05-19 | 2012-11-21 | Huhnseal AB | High temperature axial seal and method |
| CN204942831U (en) * | 2015-08-20 | 2016-01-06 | 宇航航天装备有限公司 | A kind of D type swivel joint of end face ceramic seal |
| CN206112333U (en) * | 2016-07-20 | 2017-04-19 | 江苏腾旋科技股份有限公司 | Rotary joint |
| CN207349642U (en) * | 2017-06-30 | 2018-05-11 | 天津滨海设备配套技术有限公司 | High temperature rotary joint |
-
2017
- 2017-06-30 CN CN201710526413.7A patent/CN107191715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052772A (en) * | 2010-01-11 | 2011-05-11 | 刘盛里 | Slot type solar heat collector and heat collection tube |
| EP2525125A1 (en) * | 2011-05-19 | 2012-11-21 | Huhnseal AB | High temperature axial seal and method |
| CN204942831U (en) * | 2015-08-20 | 2016-01-06 | 宇航航天装备有限公司 | A kind of D type swivel joint of end face ceramic seal |
| CN206112333U (en) * | 2016-07-20 | 2017-04-19 | 江苏腾旋科技股份有限公司 | Rotary joint |
| CN207349642U (en) * | 2017-06-30 | 2018-05-11 | 天津滨海设备配套技术有限公司 | High temperature rotary joint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019106450A1 (en) * | 2017-12-01 | 2019-06-06 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
| ES2715513R1 (en) * | 2017-12-01 | 2019-07-19 | Umbra Meccanotecnica | High temperature fluid seal |
| US11384959B2 (en) | 2017-12-01 | 2022-07-12 | Meccanotecnica Umbra S.P.A. | Joint for high temperature fluid |
| CN112585364A (en) * | 2018-08-13 | 2021-03-30 | 采埃孚股份公司 | Joint and method for manufacturing such a joint |
| CN112585364B (en) * | 2018-08-13 | 2023-05-30 | 采埃孚股份公司 | Joint and method for manufacturing such a joint |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
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| RJ01 | Rejection of invention patent application after publication |