WO2024122917A1 - Récipient sous pression - Google Patents

Récipient sous pression Download PDF

Info

Publication number
WO2024122917A1
WO2024122917A1 PCT/KR2023/018308 KR2023018308W WO2024122917A1 WO 2024122917 A1 WO2024122917 A1 WO 2024122917A1 KR 2023018308 W KR2023018308 W KR 2023018308W WO 2024122917 A1 WO2024122917 A1 WO 2024122917A1
Authority
WO
WIPO (PCT)
Prior art keywords
boss
ring
neck portion
peripheral surface
liner
Prior art date
Application number
PCT/KR2023/018308
Other languages
English (en)
Korean (ko)
Inventor
김대근
고영관
이교민
황의찬
변종익
Original Assignee
롯데케미칼 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020220171781A external-priority patent/KR20240086336A/ko
Application filed by 롯데케미칼 주식회사 filed Critical 롯데케미칼 주식회사
Publication of WO2024122917A1 publication Critical patent/WO2024122917A1/fr

Links

Images

Definitions

  • the present invention relates to a pressure vessel, and more specifically, to the sealing structure of the neck portion of the liner corresponding to the inlet of the pressure vessel and the nozzle boss.
  • a pressure vessel is a container that compresses and stores gaseous fuel at high pressure, and is mainly installed in natural gas vehicles or hydrogen vehicles.
  • a pressure vessel consists of a liner made of plastic that forms the body of the container, a fiber composite material surrounding the outer surface of the liner, and a nozzle boss coupled to the inlet of the liner.
  • the nozzle boss is a part that is connected to the vehicle's valve (or adapter) and is made of high-strength metal.
  • the performance of a pressure vessel is determined by the interfacial bonding force between the liner and the nozzle boss. Since the plastic liner and the metal nozzle boss are different materials, problems with adhesion may occur. Conventionally, the liner and the nozzle boss were simply screwed together, so there was a risk of fuel leaking through the interface between the liner and the nozzle boss during long-term charging/discharging.
  • the present invention seeks to provide a pressure vessel that can maintain airtightness and durability even after repeated charging/discharging for a long time by improving the airtightness between the liner and the nozzle boss along the direction in which pressure is applied.
  • a pressure vessel includes a liner, a first boss, a second boss, and a seal ring.
  • the liner provides an internal space for receiving fluid and includes a neck portion.
  • the first boss is coupled to the outer peripheral surface of the neck portion and includes an expansion ring portion facing the end of the neck portion along the axial direction of the liner.
  • the second boss is coupled to the inner peripheral surface of the neck portion and the inner peripheral surface of the first boss, and a through hole for charging and discharging fluid is located in the second boss.
  • the sealing ring is in close contact between the end of the neck portion and the expansion ring portion, and surrounds the outer peripheral surface of the second boss in close contact.
  • the sealing ring may include a first protrusion that extends toward the end of the neck portion and presses the end of the neck portion, and a second protrusion that extends toward the second boss and presses the second boss.
  • the end of the neck portion and the expansion ring portion may be spaced apart along the axial direction of the liner. As the internal pressure of the liner increases, the seal ring may be compressed, and the distance between the end of the neck portion and the expansion ring portion may decrease.
  • a first thread may be located on the outer peripheral surface of the neck portion, and a second thread, an expansion ring, and a third thread may be located in that order along the axial direction of the liner on the inner peripheral surface of the first boss.
  • the first screw thread and the second screw thread may be screwed together.
  • the second boss may include a first cylindrical portion in close contact with the inner peripheral surface of the neck portion, and a second cylindrical portion with a fourth screw thread located on the outer peripheral surface and screwed to the third screw thread.
  • a first step surface may be located between the first cylindrical portion and the second cylindrical portion, and one surface of the expansion ring portion may be in contact with the first step surface.
  • a first recess for receiving the sealing ring may be located on the inner side of the end of the neck portion facing the second boss, and a second recess may be located on the inner side toward the second boss of the other side of the expansion ring portion facing the neck portion for receiving the sealing ring. Additional locations may be located.
  • the sealing ring may include one surface facing the end of the neck portion, the other surface facing the expansion ring portion, an inner peripheral surface facing the second boss, and a first outer peripheral surface and a second outer peripheral surface having a step between them.
  • One surface of the seal ring and a portion of the first outer peripheral surface may be accommodated in the first recess, and the other surface of the seal ring and a portion of the second outer peripheral surface may be accommodated in the second recess.
  • the sealing ring may include a first protrusion extending from the first concave portion toward the end of the neck portion to press the end of the neck portion, and a second protrusion extending toward the second boss to press the second boss.
  • the seal ring may include any of fluororubber, acrylonitrile-butadiene rubber (NBR), ethylene-propylene rubber (EPR), and silicone rubber.
  • the pressure vessel may further include at least one O-ring and at least one backup ring located between the inner peripheral surface of the neck portion and the outer peripheral surface of the second boss.
  • the at least one O-ring may include a first O-ring and a second O-ring spaced apart along the axial direction of the liner.
  • the at least one backup ring may include a first backup ring disposed in close contact with the first O-ring and a second backup ring disposed in close contact with the second O-ring.
  • the pressure vessel according to the present invention can be easily assembled for sealing without work restrictions by placing a sealing ring on the outside of the liner, and even when charging/discharging of the pressure vessel is repeated continuously for a long time, the sealing ring can be deformed. The fluid flow can be effectively blocked by closing the gap in the nozzle boss. As a result, pressure vessels can have improved airtightness and durability.
  • FIG. 1 is a configuration diagram of a pressure vessel according to a first embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of the pressure vessel shown in FIG. 1.
  • FIG. 3 is an exploded view of the pressure vessel shown in FIG. 2.
  • FIG. 4 is a partially enlarged view of the pressure vessel shown in FIG. 2.
  • Figure 5 is a configuration diagram assuming the case where there is no sealing ring in the pressure vessel shown in Figure 4.
  • FIG. 6 is a partially cut away perspective view of the sealing ring in the pressure vessel shown in FIG. 2.
  • FIG. 7 is an enlarged cross-sectional view of the seal ring shown in FIG. 6.
  • Figure 8 is a partial enlarged view of the pressure vessel in a low pressure state.
  • Figure 9 is a partial enlarged view of a pressure vessel under high pressure.
  • Figure 10 is a partially enlarged view of a pressure vessel according to a second embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of the second boss of the pressure vessel shown in FIG. 10.
  • FIG. 1 is a configuration diagram of a pressure vessel according to a first embodiment of the present invention
  • FIG. 2 is a partial enlarged view of the pressure vessel shown in FIG. 1
  • FIG. 3 is an exploded view of the pressure vessel shown in FIG. 2.
  • the pressure vessel 100 includes a cylindrical liner 10 that is empty inside and closed on both sides except the inlet, and a liner surrounding the outer surface of the liner 10. Includes a fiber composite (not shown), a nozzle boss 20 made of metal coupled to the inlet of the liner 10, and a sealing ring 50 disposed between the liner 10 and the nozzle boss 20. do.
  • the liner 10 stores various fluids, such as liquefied petroleum gas (LPG), compressed natural gas (CNG), light hydrocarbons (methane, propane, butane, etc.), and hydrogen gas, by compressing them at high pressure in the internal space.
  • LPG liquefied petroleum gas
  • CNG compressed natural gas
  • light hydrocarbons methane, propane, butane, etc.
  • hydrogen gas hydrogen gas
  • the fiber composite material may be composed of high-strength fibers such as carbon fibers and glass fibers that surround the outer surface of the liner 10 in multiple layers, and polymer resins such as epoxy that surround the high-strength fibers.
  • the fiber composite material serves as a reinforcing layer of the liner 10 and provides structural strength and rigidity so that the liner 10 can withstand high pressure.
  • the liner 10 includes a cylindrical body portion 11 closed on one side (lower side in the drawing), a shoulder portion 12 connected to the body portion on the other side (upper side in the drawing) of the body portion 11, and , It may include a neck portion 13 that is connected to the shoulder portion 12 at the center of the shoulder portion 12 and extends along the axial direction (z direction in the drawing) of the liner 10.
  • the shoulder portion 12 may be formed as a convex curved surface toward the inside of the liner 10, but is not limited to this example.
  • the neck portion 13 is a portion corresponding to the entrance of the liner 10 and has a cylindrical shape parallel to the axial direction (z direction) of the liner 10.
  • a first thread 14 for coupling with the nozzle boss 20 is located on the outer peripheral surface of the neck portion 13.
  • the nozzle boss 20 has a dual structure of a first boss 30 corresponding to the outer boss and a second boss 40 corresponding to the inner boss.
  • the first boss 30 is coupled to the outer peripheral surface of the neck portion 13 and is positioned to extend further outward than the neck portion 13 along the axial direction (z direction) of the liner 10.
  • the second boss 40 is coupled to the inner peripheral surface of the neck portion 13 and the inner peripheral surface of the first boss 30, and a through hole 21 for fastening a valve (or adapter) for charging/discharging fluid is formed on the second boss. It is located in the center of (40).
  • a portion of the first boss 30 may extend outside the shoulder portion 12 to cover the shoulder portion 12 .
  • the second screw thread 32 and the third screw thread 33 may be located at a distance from each other along the axial direction (z-direction) of the liner 10.
  • the second thread 32 may be located in a portion that overlaps the neck portion 13, and the third thread 33 may be located in a portion that does not overlap the neck portion 13. That is, the third screw thread 33 may be located in a portion of the first boss 30 that extends further outward than the neck portion 13.
  • the neck portion 13 and the first boss 30 may be screwed together by the first screw thread 14 and the second screw thread 32.
  • the second boss 40 is connected in line with the first cylindrical part 41 and the first cylindrical part 41 in close contact with the inner peripheral surface of the neck portion 13 and is coupled to the inner peripheral surface of the first boss 30. 2 It may include a cylindrical portion (42).
  • the second boss 40 may further include a flange 43 orthogonal to the second cylindrical portion 42 at an end of the second cylindrical portion 42 .
  • the flange 43 may cover the outer (upper side in the drawing) end of the first boss 30, or may not cover it as needed.
  • the through hole 21 sequentially penetrates the first cylindrical portion 41 and the second cylindrical portion 42 along the axial direction (z direction) of the liner 10.
  • the inner diameter, outer diameter, and thickness of the first cylindrical portion 41 may be smaller than the inner diameter, outer diameter, and thickness of the second cylindrical portion 42, respectively. Due to the difference in the outer diameter of the first cylindrical portion 41 and the second cylindrical portion 42, a first cylindrical portion is located at one end (bottom in the drawing) of the second cylindrical portion 42 facing the first cylindrical portion 41.
  • a step surface 44 is located.
  • the first step surface 44 may be a flat surface perpendicular to the axial direction (z direction) of the liner 10.
  • the outer peripheral surface of the first cylindrical portion 41 is in close contact with the inner peripheral surface of the neck portion 13, and a fourth thread 45 for coupling with the first boss 30 is located on the outer peripheral surface of the second cylindrical portion 42. You can.
  • the first boss 30 and the second boss 40 may be screwed together by a third screw thread 33 and a fourth screw thread 45 in the second cylindrical portion 42.
  • a fifth thread 46 for coupling with a valve (or adapter) may be located on the inner peripheral surface of the second cylindrical portion 42.
  • FIG. 4 is a partially enlarged view of the pressure vessel shown in FIG. 2, and FIG. 5 is a configuration diagram assuming the pressure vessel shown in FIG. 4 does not have a sealing ring.
  • the end of the neck portion 13 furthest from the shoulder portion 12 (the upper end based on the drawing) is a second boss along the axial direction (z direction) of the liner 10. It is located at a distance from the first step surface 44 of (40). That is, based on the drawing, the upper end of the neck portion 13 is located below the first step surface 44 at a predetermined distance from the first step surface 44 of the second boss 40.
  • a first concave portion 15 of a certain depth for installing the sealing ring 50 may be located on the inner side of the end of the neck portion 13 toward the second boss 40 .
  • the first concave portion 15 may be composed of a second step surface 151 parallel to the axial direction (z direction) of the liner 10, and a third step surface 152 orthogonal to the second step surface 151. You can.
  • the first boss 30 may include an expanded ring portion 34 protruding from the inner peripheral surface of the first boss 30 toward the center of the through hole 21.
  • the expansion ring portion 34 is located between the second screw thread 32 and the third screw thread 33, and is located between the end of the neck portion 13 and the first step surface 44 of the second boss 40. do.
  • One surface (upper surface based on the drawing) of the expansion ring portion 34 facing the first step surface 44 may be in contact with the first step surface 44, and the expansion ring portion facing the end of the neck portion 13
  • the other surface of (34) (based on the drawing) is located spaced apart from the end of the neck portion (13).
  • the separation distance between the other surface of the expansion ring portion 34 and the end of the neck portion 13 along the axial direction (z direction) of the liner is indicated as d1.
  • a second concave portion 47 of a certain depth for installing the sealing ring 50 may be located on the inner side of the other surface of the expansion ring portion 34 toward the second boss 40 .
  • the second concave portion 47 may be composed of a fourth step surface 471 parallel to the axial direction (z direction) of the liner 10, and a fifth step surface 472 orthogonal to the fourth step surface 471. You can.
  • the distance d3 (see FIG. 5) between the first cylindrical portion 41 and the fourth step surface 471 along the radial direction (x direction in the drawing) of the liner 10 is It may be greater than the distance d2 between the second step surfaces 151 (see FIG. 5).
  • the radial direction (x direction) of the liner 10 refers to a direction extending in all directions from the center of the liner 10 (center of the circle).
  • FIG. 6 is a partially cut-away perspective view of the sealing ring in the pressure vessel shown in FIG. 2, and FIG. 7 is an enlarged cross-sectional view of the sealing ring shown in FIG. 6.
  • the sealing ring 50 has a ring shape surrounding the second boss 40, and is attached to the neck portion 13 outside the first cylindrical portion 41 of the second boss 40. It is located between the end and the expansion ring portion 34 of the first boss 30. That is, the sealing ring 50 is in contact with the neck portion 13 and both the first boss 30 and the second boss 40, and improves the sealing ability at the interface between the neck portion 13 and the second boss 40. Effectively suppresses fluid leakage regardless of pressure changes.
  • the sealing ring 50 has a flat surface 51 (based on the drawing) facing the neck part 13, and a flat other surface 52 (top surface based on the drawing) facing the expansion ring part 34. , It may include a flat inner peripheral surface 53 facing the first cylindrical portion 41 and an outer peripheral surface 54 having a predetermined step.
  • One surface 51 (lower surface) of the sealing ring 50 faces the third step surface 152 of the first concave portion 15, and a third surface 51 (lower surface) is convex toward the neck portion 13.
  • 1 Protrusion 55 may be located.
  • the first protrusion 55 may have a hemispherical cross-sectional shape, but is not limited to this example.
  • the other surface 52 (upper surface) of the sealing ring 50 may be in close contact with the fifth step surface 472 of the expansion ring portion 34.
  • a second protrusion 56 that is convex toward the first cylindrical portion 41 may be located on the inner peripheral surface 53 of the sealing ring 50 .
  • the second protrusion 56 may have a hemispherical cross-sectional shape, but is not limited to this example.
  • the second protrusion 56 may be located on the inner peripheral surface of the sealing ring 50 with a bias toward the second cylindrical portion 42 . That is, based on the drawing, the second protrusion 56 may be located on the upper portion of the inner peripheral surface of the sealing ring 50.
  • the outer peripheral surface 54 of the sealing ring 50 may include a first outer peripheral surface 541 and a second outer peripheral surface 542 having a step difference between them.
  • One surface of the sealing ring 50 and the first outer peripheral surface 541 may be accommodated in the first concave portion 15, and the other surface of the sealing ring 50 and a portion of the second outer peripheral surface 542 may be It can be accommodated in the second concave portion 47.
  • the second outer peripheral surface 542 is located farther from the shoulder portion 12 than the first outer peripheral surface 541.
  • the width w1 between the inner peripheral surface 53 and the first outer peripheral surface 541 of the sealing ring 50 may be smaller than the width w2 between the inner peripheral surface 53 and the second outer peripheral surface 542 of the sealing ring 50. there is.
  • the sealing ring 50 may be made of an elastic body made of rubber that is deformed by an external force and returns to its initial form when the external force disappears.
  • the seal ring 50 may include any one of fluorine rubber, acrylonitrile-butadiene rubber (NBR), ethylene-propylene rubber (EPR), and silicone rubber.
  • Fluoroelastomers may include VitonTM from Chemours, and ethylene-propylene rubbers may include EPM or EPDM. These materials have excellent elasticity, wear resistance, and mechanical properties, making them suitable as materials for the sealing ring 50.
  • the sealing ring 50 is in close contact with the neck portion 13 and both the first boss 30 and the second boss 40, and the neck is formed outside the second outer peripheral surface 542 of the sealing ring 50.
  • the sealing ring 50 can be compressed or returned to its initial state depending on the pressure state of the pressure vessel 100, and the separation distance d1 between the end of the neck portion 13 and the expansion ring portion 34 is also determined by the pressure vessel 100.
  • the size may change depending on the pressure state of (100).
  • Figure 8 is a partially enlarged view of the pressure vessel in a low pressure state
  • Figure 9 is a partially enlarged view of the pressure vessel in a high pressure state.
  • the fluid compressed at high pressure inside the liner 10 is at the interface between the inner peripheral surface of the neck portion 13 and the first cylindrical portion 41, and the first boss ( It has the force to go out along the interface between the inner peripheral surface of 30) and the second cylindrical portion 42. That is, the pressure direction (A) due to the fluid at the inlet of the pressure vessel 100 is a direction away from the liner 10 along the axial direction (z direction) of the liner 10.
  • the sealing ring 50 uses the first protrusion 55 to seal the liner 10. ), press the neck portion 13 along the axial direction (z direction), and press the first cylinder of the second boss 40 along the radial direction (x direction) of the liner 10 using the second protrusion 56. Press part (41) from the outside to the inside.
  • the first protrusion 55 blocks the flow of fluid going out between the end of the neck portion 13 and the sealing ring 50 along the radial direction (x-direction) of the liner 10.
  • the second protrusion 56 blocks the flow of fluid going outward along the pressure direction A between the inner peripheral surface of the neck portion 13 and the outer peripheral surface of the first cylindrical portion 41.
  • the seal ring 50 is moved in the pressure direction A by the force applied by the fluid. It can be compressed.
  • the separation distance between the end of the neck portion 13 and the expansion ring portion 34 may decrease.
  • the end of the neck portion 13 may rise in the pressure direction A and come into close contact with the expansion ring portion 34 without any space.
  • the sealing ring 50 compressed in the pressure direction (A) is stretched in the radial direction (x direction) of the liner 10, so that it is in close contact with the neck portion 13 over a larger area than in the low pressure state. It is in close contact with the outer peripheral surface of the first cylindrical portion 41 over a larger area than in the case of the case. Therefore, the pressure vessel 100 equipped with the sealing ring 50 can improve sealing ability and durability by effectively blocking the fluid flow path under high pressure.
  • the sealing ring 50 When the fluid inside the liner 10 is discharged by a certain amount and the internal pressure of the pressure vessel 100 returns to a low pressure state, the sealing ring 50 returns to its initial form shown in FIG. 8. The sealing ring 50 maintains the airtightness of the pressure vessel 100 by repeatedly deforming due to compression and returning to its initial form as the pressure state changes.
  • FIG. 10 is a partially enlarged view of a pressure vessel according to a second embodiment of the present invention
  • FIG. 11 is a cross-sectional view of a second boss of the pressure vessel shown in FIG. 10.
  • the pressure vessel 110 includes at least one O-ring 61, 62 located between the inner peripheral surface of the neck portion 13 and the first cylindrical portion 41. ) and at least one backup ring (71, 72).
  • the pressure vessel 110 of the second embodiment has the same or similar configuration as the first embodiment described above, except that it further includes an O-ring and a backup ring.
  • FIG. 10 shows the first and second O-rings (61, 62) and the first and second backup rings (71, 72), but the O-rings (61, 62) and the backup rings (71, 72) are shown in FIG. The number is not limited to the examples shown.
  • first groove 48 for receiving the first O-ring 61 and the first backup ring 71, and a second O-ring 62 and a second backup ring.
  • a second groove 49 for storage may be located.
  • the second groove 49 may be located closer to the second cylindrical portion 42 than the first groove 48 .
  • the outer peripheral surface of the first cylindrical portion 41 may be divided into two outer peripheral surfaces having a step between each other, and a first groove 48 and a second groove 49 may be located on each of the two outer peripheral surfaces.
  • the first O-ring 61 and the second O-ring 62 may be made of an elastic rubber material and may be made of the same or different material as the sealing ring 50.
  • the first backup ring 71 and the second backup ring 72 may have a square cross-sectional shape and may be made of, for example, polyetheretherketone (PEEK) material.
  • the first O-ring 61 and the second O-ring 62 block the fluid flow by blocking the gap between the first cylindrical part 41 and the neck part 13 at two points, and the sealing ring 50 It functions as an auxiliary sealing member that complements the function of.
  • the first backup ring 71 and the second backup ring 72 are each located on one side of the first O-ring 61 and one side of the second O-ring 62 along the pressure direction.
  • the first and second backup rings (71, 72) are auxiliary members that increase the sealing force of the first and second O-rings (61, 62) and prevent damage to the first and second O-rings (61, 62). It is used as.
  • the liner 10 of the pressure vessel 110 may be manufactured using an integrated blow molding method, and in this case, there may be limitations in fastening the sealing structure inside the liner 10.
  • the first and second O-rings 61 and 62 and the first and second backup rings 71 and 72 are located inside the neck portion 13, while the sealing ring 50 described above is located inside the liner. Since it is located outside of (10), there are no restrictions on the work to fasten the seal ring (50).
  • the pressure vessels 100 and 110 of the above-described first and second embodiments can be easily configured for sealing without work restrictions by disposing the sealing ring 50 on the outside of the liner 10, and the pressure vessel 100 Even when the charging/discharging of , 110) is continuously repeated for a long time, the fluid flow can be effectively blocked by blocking the gap in the nozzle boss 20 by deformation of the sealing ring 50, and as a result, airtightness and durability can be improved. there is.

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention porte sur un récipient sous pression qui comprend une doublure, un premier bossage, un second bossage et une bague d'étanchéité. La doublure offre un espace interne pour contenir un fluide, et comprend une partie col. Le premier bossage est couplé à la surface circonférentielle externe de la partie col, et comprend une partie bague étendue opposée à l'extrémité de la partie col le long de la direction axiale de la doublure. Le second bossage est couplé à la surface circonférentielle interne de la partie col et à la surface circonférentielle interne du premier bossage, et un trou traversant pour charger/évacuer le fluide est disposé dans le second bossage. La bague d'étanchéité vient en contact étroit entre l'extrémité de la partie col et la partie bague étendue, et entoure la surface circonférentielle externe du second bossage tout en venant en contact étroit avec celle-ci.
PCT/KR2023/018308 2022-12-09 2023-11-14 Récipient sous pression WO2024122917A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0171781 2022-12-09
KR1020220171781A KR20240086336A (ko) 2022-12-09 압력 용기

Publications (1)

Publication Number Publication Date
WO2024122917A1 true WO2024122917A1 (fr) 2024-06-13

Family

ID=91379536

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2023/018308 WO2024122917A1 (fr) 2022-12-09 2023-11-14 Récipient sous pression

Country Status (1)

Country Link
WO (1) WO2024122917A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7857159B2 (en) * 2008-02-12 2010-12-28 Gm Global Technology Operations, Inc. Article seal assembly
JP2011102614A (ja) * 2009-11-11 2011-05-26 Yachiyo Industry Co Ltd 圧力容器のシール構造
US9752680B2 (en) * 2012-01-20 2017-09-05 Hiperbaric, S.A. Sealing ring for container
KR102356674B1 (ko) * 2019-09-30 2022-01-28 롯데케미칼 주식회사 압력 용기용 보스
KR20220068012A (ko) * 2020-11-18 2022-05-25 롯데케미칼 주식회사 압력 용기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7857159B2 (en) * 2008-02-12 2010-12-28 Gm Global Technology Operations, Inc. Article seal assembly
JP2011102614A (ja) * 2009-11-11 2011-05-26 Yachiyo Industry Co Ltd 圧力容器のシール構造
US9752680B2 (en) * 2012-01-20 2017-09-05 Hiperbaric, S.A. Sealing ring for container
KR102356674B1 (ko) * 2019-09-30 2022-01-28 롯데케미칼 주식회사 압력 용기용 보스
KR20220068012A (ko) * 2020-11-18 2022-05-25 롯데케미칼 주식회사 압력 용기

Similar Documents

Publication Publication Date Title
WO2018016914A1 (fr) Récipient à haute pression pour véhicule
JP4392804B2 (ja) 圧力容器
US5938209A (en) Seal system for fluid pressure vessels
JP7371707B2 (ja) 高圧容器
CA2449965C (fr) Reservoir pour fluide sous pression, notamment reservoir pour gaz comprime destine a un vehicule automobile
CN109210365B (zh) 高压复合容器的密封结构及高压复合容器
WO2017200206A1 (fr) Cuve sous pression
US11371659B2 (en) Boss with internal bearing
CA2752513A1 (fr) Bossage de reservoir sous pression resistant au cisaillement et element d'interface de coque
US11209085B2 (en) Blind boss fitting with redundant seal
KR102356674B1 (ko) 압력 용기용 보스
WO2024122917A1 (fr) Récipient sous pression
EP1314917B1 (fr) Joint annulaire et structure d'étanchéité, en particulier pour réservoirs et tuyaux en matériau composite
WO2020111842A1 (fr) Appareil d'étanchéité pour réservoir haute pression et réservoir haute pression le comprenant
CN113217814A (zh) 一种内翻式高阻氢塑料-金属封头密封结构
KR20240086336A (ko) 압력 용기
KR20240093195A (ko) 압력 용기
WO2023120976A1 (fr) Procédé de fabrication d'un joint d'étanchéité intégré pour récipient à haute pression
CN115614659A (zh) 高压罐单元
WO2023120975A1 (fr) Récipient sous pression de petit diamètre et à long axe
US11635168B2 (en) High-pressure tank
WO2024144119A1 (fr) Récipient de stockage haute pression
CN115930101A (zh) 一种高压复合材料氢气瓶接口增强密封结构
CN216131758U (zh) 一种内翻式高阻氢塑料-金属封头密封结构
CN117489970A (zh) 罐