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1. WO2020137049 - ROTARY JOINT

Publication Number WO/2020/137049
Publication Date 02.07.2020
International Application No. PCT/JP2019/037570
International Filing Date 25.09.2019
IPC
F16L 27/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
27Adjustable joints; Joints allowing movement
08allowing adjustment or movement only about the axis of one pipe
F16L 39/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
39Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
04allowing adjustment or movement
F16L 39/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
39Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
06of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
CPC
F16L 27/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
27Adjustable joints, Joints allowing movement
08allowing adjustment or movement only about the axis of one pipe
F16L 39/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
39Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
04allowing adjustment or movement
F16L 39/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
39Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
06of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
Applicants
  • 日本ピラー工業株式会社 NIPPON PILLAR PACKING CO., LTD. [JP]/[JP]
Inventors
  • 鈴木 理 SUZUKI, Osamu
  • 奥西 泰之 OKUNISHI, Yasuyuki
  • 松居 修平 MATSUI, Shuhei
  • 石島 政直 ISHIJIMA, Masanao
Agents
  • 特許業務法人サンクレスト国際特許事務所 SUNCREST PATENT AND TRADEMARK ATTORNEYS
Priority Data
2018-24301626.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ROTARY JOINT
(FR) JOINT ROTATIF
(JA) ロータリジョイント
Abstract
(EN)
Provided is a rotary joint capable of suppressing an increase in the total length thereof in the axial direction even when the number of ports is increased. Mechanical seal devices 7 of a rotary joint 1 each include: a first shaft-side seal ring 71 and a second shaft-side seal ring 72 that are attached to a shaft body 5; and a first case-side seal ring 73 and a second case-side seal ring 74 that are attached to a case body 2. A first communication channel 41 that defines an annular space A and that connects a first outer channel 31 and a first inner channel 61 is formed between a first sliding section 77 of the first shaft-side seal ring 71 and the first case-side seal ring 73 and a second sliding section 78 of the second shaft-side seal ring 72 and the second case-side seal ring 74. A second communication channel 42 that defines the annular space A and that connects a second outer channel 32 and a second inner channel 62 is formed between the first sliding section 77 and the second sliding section 78, the first sliding section 77 being provided in one of the mechanical seal devices 7 adjacent in the axial direction, and the second sliding section 78 being provided in the other.
(FR)
L'invention concerne un joint rotatif capable de supprimer une augmentation de la longueur totale de celui-ci dans la direction axiale même lorsque le nombre de ports est augmenté. Des joints d'étanchéité mécanique 7 d'un joint rotatif comprennent chacun : une première bague d'étanchéité côté arbre 71 et une seconde bague d'étanchéité côté arbre 72 qui sont fixées à un corps d'arbre 5; et une première bague d'étanchéité côté boîtier 73 et une seconde bague d'étanchéité côté boîtier 74 qui sont fixées à un corps de boîtier 2. Un premier canal de communication 41 qui définit un espace annulaire A et qui relie un premier canal externe 31 et un premier canal interne 61 est formé entre une première section coulissante 77 de la première bague d'étanchéité côté arbre 71 et la première bague d'étanchéité côté boîtier 73 et une seconde section coulissante 78 de la seconde bague d'étanchéité côté arbre 72 et de la seconde bague d'étanchéité côté boîtier 74. Un second canal de communication 42 qui définit l'espace annulaire A et qui relie un second canal exterieur 32 et un second canal interieur 62 est formé entre la première section coulissante 77 et la seconde section coulissante 78, la première section coulissante étant disposée dans l'un des joints d'étanchéité mécanique 7 adjacents dans la direction axiale, et la seconde section coulissante 78 étant disposée dans l'autre.
(JA)
ポート数が増加しても軸方向の全長が長くなるのを抑制することができるロータリジョイントを提供する。ロータリジョイント1の各メカニカルシール装置7は、軸体5に取り付けられた第一軸側密封環71及び第二軸側密封環72と、ケース体2に取り付けられた第一ケース側密封環73及び第二ケース側密封環74とを有する。第一軸側密封環71及び第一ケース側密封環73の第一摺動部分77と、第二軸側密封環72及び第二ケース側密封環74の第二摺動部分78との間には、環状空間Aを区画して第一外側流路31と第一内側流路61とを繋ぐ第一連通流路41が形成されている。軸方向に隣り合うメカニカルシール装置7同士のうち、軸方向一方側の第一摺動部分77と、軸方向他方側の第二摺動部分78との間には、環状空間Aを区画して第二外側流路32と第二内側流路62とを繋ぐ第二連通流路42が形成されている。
Also published as
Latest bibliographic data on file with the International Bureau