CN111102408A - Cathode pipeline insulating sealing joint of electric propulsion engine - Google Patents
Cathode pipeline insulating sealing joint of electric propulsion engine Download PDFInfo
- Publication number
- CN111102408A CN111102408A CN201911334606.8A CN201911334606A CN111102408A CN 111102408 A CN111102408 A CN 111102408A CN 201911334606 A CN201911334606 A CN 201911334606A CN 111102408 A CN111102408 A CN 111102408A
- Authority
- CN
- China
- Prior art keywords
- ring
- weld
- joint
- ferrule
- insulator
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 239000012212 insulator Substances 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims description 37
- 239000000919 ceramic Substances 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000003380 propellant Substances 0.000 description 9
- 230000000875 corresponding Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 229920002393 Microsatellite Polymers 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/023—Electrically insulating joints or couplings for joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
-
- 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
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
- F16L13/0218—Welded joints having an inner or outer ring
Abstract
The invention provides an insulating sealing joint for an engine cathode pipeline of an electric propulsion engine. The insulating sealing joint of the cathode pipeline of the electric propulsion engine comprises an external fastening structure; an outer weld head comprising a left end and a right end, the left end being connected with the outer fastening structure; an insulator having a left side and a right side, the left side being connected to a right end of the outer bond head; an inner weld joint comprising a left end and a right end, the left end being connected to the right side of the insulator; and an inner fastening structure connected with a right end of the inner welded joint.
Description
Technical Field
The invention relates to the technical field of electric propulsion, in particular to an insulating sealing joint of a cathode pipeline of an electric propulsion engine.
Background
The electric propulsion technology is an advanced space propulsion technology and has wide application in the aspects of attitude control, track transfer, north-south position keeping, repositioning and the like of the spacecraft. With the gradual development of the microsatellite, the electric propulsion engine also develops towards low power, and the low power electric propulsion engine has unique advantages in the aspects of formation flight, position maintenance and the like of the microsatellite.
Because the cathode air inlet pipeline of the electric propulsion engine has voltage, if a propellant supply pipeline outside the engine is directly connected with the cathode air inlet pipeline, the engine short circuit phenomenon can be caused, components in a propellant supply pipeline system can be damaged, and an insulating joint piece with a compact structure needs to be designed.
Disclosure of Invention
In order to solve the problem, the invention designs the cathode pipeline insulating sealing joint of the electric propulsion engine with sealing and insulating functions.
An engine cathode line insulating and sealing joint of an electric propulsion engine according to an embodiment of the present invention includes: an outer fastening structure; an outer weld head comprising a left end and a right end, the left end being connected with the outer fastening structure; an insulator having a left side and a right side, the left side being connected to a right end of the outer bond head; an inner weld joint comprising a left end and a right end, the left end being connected to the right side of the insulator; and an inner fastening structure connected with a right end of the inner welded joint.
In an alternative embodiment, the external fastening arrangement comprises an external ferrule nut having internal threads, and an external ferrule back ring and an external ferrule front ring received within the external ferrule nut, and the left end of the external weld joint is formed with external threads that mate with the internal threads of the external ferrule nut and an opening that engages the external ferrule front ring.
In an alternative embodiment, the opening at the left end of the outer weld head is a tapered bore, the outer ferrule front ring has a tapered front end that mates with the tapered bore, and a tapered bore rear end, and the outer ferrule rear ring includes a tapered front end that mates with the tapered bore rear end of the outer ferrule front ring.
In an alternative embodiment, the tapered bore at the left end of the flare tip has a 60 ° taper angle and the tapered bore back end of the outer ferrule front ring has a 90 ° taper angle.
In an alternative embodiment, the inner fastening structure includes an inner ferrule nut having internal threads, and an inner ferrule rear ring and an inner ferrule front ring received within the inner ferrule nut, and the right end of the inner weld head is formed with external threads that mate with the internal threads of the inner ferrule nut and an opening that engages the inner ferrule front ring.
In an alternative embodiment, the opening at the right end of the inner weld head is a tapered bore, the inner ferrule front ring has a tapered front end that mates with the tapered bore, and a tapered bore rear end, and the inner ferrule rear ring includes a tapered front end that mates with the tapered bore rear end of the outer ferrule front ring.
In an alternative embodiment, the tapered bore at the right end of the inner weld head has a 60 ° taper angle and the rear end of the tapered bore of the inner ferrule front ring has a 90 ° taper angle.
In an alternative embodiment, the electrically propelled engine cathodic line insulating seal joint further comprises an inner weld ring disposed between a left end of the inner weld and a right side of the insulator; an outer weld ring disposed between a left side of the insulator and a right end of the outer weld head, and wherein the inner weld head, inner weld ring, insulator, outer weld ring, outer weld head are sealingly connected together by welding.
In an alternative embodiment, the right end of the outer weld head is formed in a stepped form, and the left ends of the outer weld ring, the insulator, and the inner weld head form respective steps to successively mate with each other.
In an alternative embodiment, the outer weld head and/or the inner weld head are made of 304 stainless steel.
In an alternative embodiment, the insulator is made of alumina ceramic.
In an alternative embodiment, the inner and/or outer solder ring is made of a ceramic seal alloy.
An insulated sealing joint for a cathode line of an electrically propelled engine according to an alternative embodiment of the present invention includes a ferrule nut, a ferrule back ring, a ferrule front ring, an exterior weld joint, an exterior weld ring, an insulator, an interior weld ring, and an interior weld joint. In an alternative embodiment, the insulator is made of alumina ceramic, the inner welding ring and the outer welding ring are made of ceramic sealing alloy, and the thermal expansion coefficients of the inner welding ring, the outer welding ring and the insulator are similar, so that the insulator can be used for forming a good airtight seal with ceramic welding. In another alternative embodiment, the inner weld ring, the outer weld ring, and the insulator are all annular bosses.
According to the alternative embodiment of the invention, the cathode pipeline insulating and sealing joint of the electric propulsion engine is connected with the cathode air inlet pipe and the propellant supply pipeline through the clamping sleeve type connector, so that the electric propulsion engine is convenient to disassemble and assemble; the propellant supply pipeline and the electrified cathode air inlet pipe are mutually electrically insulated by welding a ceramic insulator in the middle of the clamping sleeve type joint.
The invention has the advantages that:
1) the ceramic and metal welding process is used, the sealing and insulation are integrated, and the structure is simple;
2) the clamping sleeve type connecting mode is used, and the dismounting is convenient.
Drawings
Fig. 1 is a sectional view of a cathode line insulating sealing joint of an electric propulsion engine according to one embodiment of the present invention.
Fig. 2 is another cross-sectional view of a cathode line insulating sealing joint of an electric propulsion engine according to one embodiment of the present invention.
The reference numerals in the figures denote the following parts,
1. outer cutting ferrule nut 2, outer cutting ferrule back ring 3, outer cutting ferrule front ring 4, outer welding head
5. External welding ring 6, insulator 7, internal welding ring 8, internal welding joint
11. Inner clamping sleeve nut 12, inner clamping sleeve rear ring 13, inner clamping sleeve front ring 100, cathode pipeline insulation sealing joint
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings 1-2. Certain terminology is used herein for convenience only and is not to be taken as a limitation on the present invention. For example, terms such as "upper," "lower," "left," "right," "horizontal," "vertical," "upward," and "downward" merely describe the configuration shown in the figures. Indeed, the components may be oriented in any direction and the terminology, therefore, should be understood as encompassing all such variations unless specified otherwise. In this specification, the word "comprising" is to be understood in its "open" sense, i.e. having the meaning of "and therefore should not be taken to be limited to the" closed "sense, i.e. to the meaning of" including only ". The corresponding meaning also applies to the corresponding words "comprising", "including", etc. Although expressions such as "1 st", "2 nd", "first" and "second" may be used to describe the respective elements of the present invention, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of the corresponding elements. The above description is only intended to distinguish one element from another.
Fig. 1 is a sectional view of a cathode line insulating sealing joint of an electric propulsion engine according to one embodiment of the present invention. Fig. 2 is another cross-sectional view of a cathode line insulating sealing joint of an electric propulsion engine according to one embodiment of the present invention.
Referring to fig. 1 to 2, a cathode line insulating and sealing joint 100 of an electric propulsion engine according to an embodiment of the present invention includes: the outer fastening structure, the outer welding head 4 connected with the outer fastening structure, the insulator 6 connected with the outer welding head 4, the inner welding head 8 connected with the insulator 6, and the inner fastening structure connected with the inner welding head.
Referring to fig. 1 to 2, a cathode line insulation sealing joint 100 of an electric propulsion engine according to another embodiment of the present invention includes: an outer bayonet nut 1 with an internal thread; an outer ferrule back ring 2 and an outer ferrule front ring 3 housed within the outer ferrule nut; an outer welding head 4, the left end of which cooperates with the outer ferrule front ring 3 and has an outer thread which engages with the inner thread of the ferrule nut 1; an insulator 6 which is matched with the right end of the outer welding head 4; the right end of the inner welding head 8 on the right side of the insulator 6 opposite to the outer welding head 4 is provided with an external thread; an inner bayonet nut 11 accommodating an inner bayonet rear ring 12 and an inner bayonet front ring 13 is provided at the right end of the inner weld head 8, wherein the inner bayonet nut 11 further has an internal thread to engage with an external thread at the right end of said inner weld head 8. In this embodiment the outer fastening arrangement comprises an outer bayonet nut 1 with an internal thread and an outer bayonet rear ring 2 and an outer bayonet front ring 3 accommodated in the outer bayonet nut 1, and the inner fastening arrangement comprises an inner bayonet nut 11 with an internal thread and an inner bayonet rear ring 12 and an inner bayonet front ring 13 accommodated in the inner bayonet nut 11. The outer and inner fastening structures of the present invention are not limited to the above-described structures, and in other embodiments, the outer and inner fastening structures may be other suitable structures as needed.
Optionally, in one embodiment, the outer weld joint 4 and/or the inner weld joint 8 are 304 stainless steel, but the invention is not limited thereto. Alternatively, in another embodiment, the insulator 6 is made of an insulating material, such as, but not limited to, alumina ceramic, to electrically insulate between the inner and outer weld joints. Alternatively, in another embodiment, the insulator 6 is formed as a circular ring-shaped boss, but the present invention is not limited thereto.
Alternatively, for the purpose of better tight fitting of the components, the opening on the left side of the outer joint 4 that fits the outer collar front ring 3 is in the form of a tapered hole (in this embodiment, a 60 ° taper, but not limited thereto), the outer collar front ring 3 includes a tapered front end that fits the tapered hole and a tapered hole rear end (in this embodiment, a 90 ° taper, but not limited thereto), and the outer collar rear ring 2 includes a tapered front end that fits the tapered hole rear end of the outer collar front ring 3. Similarly, optionally, for the purpose of better tight fitting of the components, the opening on the right side of the inner weld head 8 that mates with the inner collar front ring 13 is in the form of a tapered bore (in this embodiment, a 60 ° taper, but not limited thereto), the inner collar front ring 13 includes a tapered front end that mates with the tapered bore and a tapered bore rear end (in this embodiment, a 90 ° taper, but not limited thereto), and the inner collar rear ring 12 includes a tapered front end that mates with the tapered bore rear end of the inner collar front ring 13.
Alternatively, in one embodiment, the outer fastening structure and the inner fastening structure may have substantially the same structure, that is, the components thereof have the same specification, so as to facilitate manufacture and installation, and also facilitate reduction of manufacturing costs and replacement. However, it should be understood that in other embodiments, the inner fastening structure may be adopted in another different form and size structure, respectively, according to the need, without being limited thereto.
With reference to fig. 1-2, in order to better achieve the weld fixation between the inner weld head 8 and the outer weld head 4, respectively, and the insulator 6 therebetween, an inner weld ring 7 may be arranged between the inner weld head 8 and the insulator 6, and an outer weld ring 5 may be provided between the insulator 6 and the outer weld head 4. At the time of assembly, the inner weld head 8, the inner weld ring 7, the insulator 6, the outer weld ring 5, and the outer weld head 4 are welded and sealed using a suitable welding means such as brazing. In one embodiment, the insulator 6 is made of alumina ceramic and is formed as an annular boss, one end of which is welded to the inner weld head 8 by the inner weld ring 7, and the other end of which is welded to the outer weld head 4 by the outer weld ring 5, thereby serving as electrical insulation between the inner weld head 8 and the outer weld head 4. Alternatively, the inner and outer weld rings 7, 5 may be made using ceramic sealing alloys, but the invention is not limited thereto and in other embodiments, other suitable materials may be used. Still optionally, the inner and outer weld rings 7, 5 are annular bosses. In one embodiment, the inner weld ring 7 and the outer weld ring 5 have a similar coefficient of thermal expansion to the insulator 6, the inner weld ring 7 acts as a weld transition between the inner weld joint 8 and the insulator 6, and the outer weld ring 5 acts as a weld transition between the outer weld joint 4 and the insulator 6, enabling a good seal to be formed. As shown in fig. 1, in the present embodiment, the right opening of the outer weld head 4 is in the form of a step, and accordingly, the outer weld ring 5, the insulator 6, and the inner weld ring 7 also have corresponding step forms. The outer weld head 4 with the step-shaped right opening and the corresponding outer weld ring 5, insulator 6 and inner weld ring 7 make the alignment between the components easier, and the contact area is increased, and the weld fixation is more secure. However, it should be understood that the structure of the member such as the outer joint 4 of the present invention is not limited thereto, and other suitable structures may be provided as needed in other embodiments.
A method of assembling the cathode line insulating sealing joint 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.
Referring to fig. 1, with reference to the outer welding head 4, the outer sleeve front ring 3 is placed in a tapered hole (for example, but not limited to, a 60 ° tapered surface) on the left side of the outer welding head 4, the outer sleeve rear ring 2 is placed in a tapered hole (for example, but not limited to, a 90 ° tapered surface) on the outer sleeve front ring 3, the outer sleeve nut 1 is matched with an external thread on the left side of the outer welding head 4, after a cathode air inlet pipe passes through holes in the centers of the outer sleeve nut 1, the outer sleeve rear ring 2 and the outer sleeve front ring 3 and penetrates into a small hole on the left side of the outer welding head 4, the outer welding head 4 is fixed, the outer sleeve nut 1 is screwed until the tip of the outer sleeve front ring 3 completely bites into the outer surface of the cathode air pipe.
Referring to fig. 1, with reference to the positioning of the outer weld joint 4, an outer weld ring 5 (e.g., without limitation, a ceramic seal alloy) is fitted over the right side of the outer weld joint 4, an insulator 6 (e.g., without limitation, alumina ceramic) is fitted over the right side of the outer weld ring 5, an inner weld ring 7 (e.g., without limitation, a ceramic seal alloy) is fitted over the right side of the insulator 6, an inner weld joint 8 is fitted over the right side of the inner weld ring 7, and the outer weld joint 4, the outer weld ring 5, the insulator 6, the inner weld ring 7, and the inner weld joint 8 are welded and sealed using a welding means such as a brazing process.
Referring to fig. 1, with reference to the inner welded joint 8, the inner ferrule front ring 13 is placed in a tapered hole (for example, but not limited to, a 60 ° tapered surface) on the right side of the inner welded joint 8, the inner ferrule rear ring 12 is placed in a tapered hole (for example, but not limited to, a 90 ° tapered surface) on the inner ferrule front ring 13, the inner ferrule nut 11 is fitted with an external thread on the right side of the inner welded joint 8, and after a propellant supply line passes through holes in the centers of the inner ferrule nut 11, the inner ferrule rear ring 12, and the inner ferrule front ring 13 and penetrates into a small hole on the right side of the inner welded joint 8, the inner welded joint 8 is fixed, the inner ferrule nut 11 is tightened until the tip of the inner ferrule front ring 13 completely bites into the outer surface of the propellant supply line, and the propellant supply line is connected to the insulating joint 100 according to an.
Propellant gas enters the insulating sealing joint from a propellant supply pipeline through the inner welding joint 8, enters the cathode gas inlet pipe from the outer welding joint 4 through the insulator 6 and the like, and meets the requirements of insulation and sealing.
Furthermore, the foregoing describes only some embodiments and alterations, modifications, additions and/or changes may be made without departing from the scope and spirit of the disclosed embodiments, which are intended to be illustrative rather than limiting. Furthermore, the described embodiments are directed to embodiments presently contemplated to be the most practical and preferred, it being understood that the embodiments should not be limited to the disclosed embodiments, but on the contrary, are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the embodiments. Moreover, the various embodiments described above can be used in conjunction with other embodiments, e.g., aspects of one embodiment can be combined with aspects of another embodiment to realize yet another embodiment. In addition, each individual feature or element of any given assembly may constitute additional embodiments.
The foregoing description of the embodiments has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure. The various elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Accordingly, it is to be understood that the drawings and description are proffered by way of example to facilitate comprehension of the invention and should not be construed to limit the scope thereof.
Claims (10)
1. An insulating sealing joint for an electromechanical cathode pipeline of an electric propulsion engine is characterized by comprising:
an outer fastening structure;
an outer weld head comprising a left end and a right end, the left end being connected with the outer fastening structure;
an insulator having a left side and a right side, the left side being connected to a right end of the outer bond head;
an inner weld joint comprising a left end and a right end, the left end being connected to the right side of the insulator; and
and the inner fastening structure is connected with the right end of the inner welding head.
2. The electrically propelled engine cathode line insulated sealing joint of claim 1, wherein:
the outer fastening structure includes an outer ferrule nut having an internal thread, and an outer ferrule rear ring and an outer ferrule front ring accommodated in the outer ferrule nut, and
the left end of the external welding head is provided with an external thread and an opening, the external thread is matched with the internal thread of the external clamping sleeve nut, and the opening is connected with the front ring of the external clamping sleeve.
3. The electrically propelled engine cathode line insulated sealing joint of claim 2, wherein:
the opening at the left end of the outer welding head is a taper hole,
the front ring of the outer cutting sleeve is provided with a tapered front end matched with the tapered hole and a tapered hole rear end, and
the outer ferrule back ring includes a tapered front end that mates with the tapered bore back end of the outer ferrule front ring.
4. The electrically propelled engine cathode line insulating and sealing joint of claim 3, wherein:
the taper hole at the left end of the outer welding head has a taper angle of 60 degrees, and
the rear end of the conical hole of the front ring of the outer cutting sleeve is provided with a conical surface angle of 90 degrees.
5. The electrically propelled engine cathode line insulated sealing joint of claim 1, wherein:
the inner fastening structure includes an inner ferrule nut having an internal thread, and an inner ferrule rear ring and an inner ferrule front ring accommodated in the inner ferrule nut, and
the right end of the inner welding joint is formed with an external thread and an opening, the external thread is matched with the internal thread of the inner clamping sleeve nut, and the opening is connected with the front ring of the inner clamping sleeve.
6. The electrically propelled engine cathode line insulating and sealing joint of claim 5, wherein:
the opening at the right end of the inner welding joint is a taper hole,
the front ring of the inner cutting sleeve is provided with a tapered front end matched with the tapered hole and a tapered hole rear end, and
the inner ferrule back ring includes a tapered front end that mates with the tapered bore back end of the outer ferrule front ring.
7. The electrically propelled engine cathode tube insulating seal joint of claim 6, wherein:
the taper hole at the right end of the inner welding head has a taper angle of 60 degrees, and
the rear end of the conical hole of the inner cutting sleeve front ring is provided with a conical surface angle of 90 degrees.
8. The insulated sealing joint for an electromechanical cathode tube of an electric propulsion engine according to claim 1, wherein the insulated sealing joint for an electromechanical cathode tube of an electric propulsion engine further comprises:
an inner weld ring disposed between a left end of the inner weld and a right side of the insulator;
an outer weld ring disposed between a left side of the insulator and a right end of the outer weld head, and
wherein the inner weld joint, the inner weld ring, the insulator, the outer weld ring, and the outer weld joint are sealingly joined together by welding.
9. The electrically propelled engine cathode line insulating and sealing joint of claim 8, wherein:
the right end of the external welding head is formed in a step-like form, and
the left ends of the outer weld ring, the insulator, and the inner weld joint are formed in respective stepped shapes to be fitted one after another.
10. The electrically propelled engine cathode line insulated sealing joint of claim 1, wherein:
the outer weld head and/or the inner weld head are made of 304 stainless steel; the insulator is made of alumina ceramic; the inner and/or outer weld rings are made of ceramic seal alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334606.8A CN111102408A (en) | 2019-12-23 | 2019-12-23 | Cathode pipeline insulating sealing joint of electric propulsion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334606.8A CN111102408A (en) | 2019-12-23 | 2019-12-23 | Cathode pipeline insulating sealing joint of electric propulsion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111102408A true CN111102408A (en) | 2020-05-05 |
Family
ID=70422713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911334606.8A Pending CN111102408A (en) | 2019-12-23 | 2019-12-23 | Cathode pipeline insulating sealing joint of electric propulsion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111102408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113581495A (en) * | 2021-05-28 | 2021-11-02 | 北京控制工程研究所 | Spiral air inlet type air path protection device for electric thruster |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1260152A (en) * | 1917-02-01 | 1918-03-19 | Mark V Croker | Nipple. |
| CH449348A (en) * | 1957-04-10 | 1967-12-31 | Edm Gressel Ag | Pipe connection |
| US3782419A (en) * | 1970-11-07 | 1974-01-01 | T Hanson | Pipe union |
| CH583397A5 (en) * | 1975-04-15 | 1976-12-31 | Bbc Brown Boveri & Cie | |
| CN2365495Y (en) * | 1998-10-27 | 2000-02-23 | 王华胜 | Cutting sleeve type pipe coupling sealed with rubber sealing ring |
| CN1390285A (en) * | 1999-09-13 | 2003-01-08 | 斯瓦戈洛克公司 | Tube fitting with indicating means |
| CN2812318Y (en) * | 2005-05-17 | 2006-08-30 | 成都市川油科技发展有限公司 | Insulated connector for pipe line of cathodic-protection anticorrosive high-pressure gas storage well |
| CN201462247U (en) * | 2009-09-11 | 2010-05-12 | 上海依格流体技术有限公司 | Clamping sleeve for connecting hydraulic steel pipes |
| CN102691835A (en) * | 2011-03-21 | 2012-09-26 | 浙江快科科技有限公司 | Double-ferrule type pipe joint |
| CN202901620U (en) * | 2012-09-18 | 2013-04-24 | 常州市瑞泰工程机械有限公司 | Insulated hard tube |
| CN203036119U (en) * | 2013-01-16 | 2013-07-03 | 沈阳永业实业有限公司 | Welding-free insulating joint |
| CN203641728U (en) * | 2013-10-21 | 2014-06-11 | 郝赫 | Insulating joint for instrument pressure lead tube |
| CN106151725A (en) * | 2016-08-29 | 2016-11-23 | 赛洛克流体设备成都有限公司 | A kind of band flexible glue layer insulating joint with protective conduit function of surface |
-
2019
- 2019-12-23 CN CN201911334606.8A patent/CN111102408A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1260152A (en) * | 1917-02-01 | 1918-03-19 | Mark V Croker | Nipple. |
| CH449348A (en) * | 1957-04-10 | 1967-12-31 | Edm Gressel Ag | Pipe connection |
| US3782419A (en) * | 1970-11-07 | 1974-01-01 | T Hanson | Pipe union |
| CH583397A5 (en) * | 1975-04-15 | 1976-12-31 | Bbc Brown Boveri & Cie | |
| CN2365495Y (en) * | 1998-10-27 | 2000-02-23 | 王华胜 | Cutting sleeve type pipe coupling sealed with rubber sealing ring |
| CN1390285A (en) * | 1999-09-13 | 2003-01-08 | 斯瓦戈洛克公司 | Tube fitting with indicating means |
| CN2812318Y (en) * | 2005-05-17 | 2006-08-30 | 成都市川油科技发展有限公司 | Insulated connector for pipe line of cathodic-protection anticorrosive high-pressure gas storage well |
| CN201462247U (en) * | 2009-09-11 | 2010-05-12 | 上海依格流体技术有限公司 | Clamping sleeve for connecting hydraulic steel pipes |
| CN102691835A (en) * | 2011-03-21 | 2012-09-26 | 浙江快科科技有限公司 | Double-ferrule type pipe joint |
| CN202901620U (en) * | 2012-09-18 | 2013-04-24 | 常州市瑞泰工程机械有限公司 | Insulated hard tube |
| CN203036119U (en) * | 2013-01-16 | 2013-07-03 | 沈阳永业实业有限公司 | Welding-free insulating joint |
| CN203641728U (en) * | 2013-10-21 | 2014-06-11 | 郝赫 | Insulating joint for instrument pressure lead tube |
| CN106151725A (en) * | 2016-08-29 | 2016-11-23 | 赛洛克流体设备成都有限公司 | A kind of band flexible glue layer insulating joint with protective conduit function of surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113581495A (en) * | 2021-05-28 | 2021-11-02 | 北京控制工程研究所 | Spiral air inlet type air path protection device for electric thruster |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20040173370A1 (en) | Hermetically sealed current conducting terminal assembly | |
| US8319153B2 (en) | Glow plug with metallic heater probe | |
| CN111102408A (en) | Cathode pipeline insulating sealing joint of electric propulsion engine | |
| JP2009146901A (en) | Method for manufacturing electric lead-through and electric lead-through manufactured by the method | |
| JP5267466B2 (en) | Electric corrosion prevention structure and waveguide connection structure | |
| US8030831B1 (en) | High thread spark plug with undercut insulator | |
| JP4680792B2 (en) | Spark plug | |
| US6417473B1 (en) | Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same | |
| JPH05240383A (en) | Coupling with electric insulating flange for pipeline and the like | |
| JP2005526364A (en) | Hermetically sealed conductive terminal components | |
| US3556864A (en) | Thermocouple structure and method for making same | |
| JP2009545856A (en) | Spark plug with threaded part at high position of integral shell | |
| CN111140400B (en) | Anode air inlet assembly of electric propulsion engine | |
| US6109946A (en) | Connection between power lead and electrically heatable catalytic converter | |
| US4182009A (en) | Electrical igniters | |
| JP2012099309A (en) | Sealing structure of current collector rod for fuel battery | |
| US5838094A (en) | Seals and igniters | |
| JP2005509124A (en) | Electric heating type glow plug and method of manufacturing electric heating type glow plug | |
| US2150725A (en) | Method of forming a spark plug | |
| JP6303924B2 (en) | Water-cooled light source device | |
| CN218293765U (en) | Gas anode distributor for electric propulsion | |
| US4841098A (en) | High power radio frequency energy feedthrough for high vacuum vessel | |
| JPH09280563A (en) | Ceramic glow plug | |
| CN211666824U (en) | Attitude control engine | |
| US20210156293A1 (en) | Connection unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20200505 |
|
| RJ01 | Rejection of invention patent application after publication |