PL423713A1 - Hybrid seal with magnetic fluid, preferably for a high-speed shaft - Google Patents
Hybrid seal with magnetic fluid, preferably for a high-speed shaftInfo
- Publication number
- PL423713A1 PL423713A1 PL423713A PL42371317A PL423713A1 PL 423713 A1 PL423713 A1 PL 423713A1 PL 423713 A PL423713 A PL 423713A PL 42371317 A PL42371317 A PL 42371317A PL 423713 A1 PL423713 A1 PL 423713A1
- Authority
- PL
- Poland
- Prior art keywords
- sleeve
- pole pieces
- flange
- separated
- rectangular cross
- Prior art date
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Hybrydowe uszczelnienie z cieczą magnetyczną zwłaszcza dla wału wysokoobrotowego ma w obudowie (2) osadzone dwie pary wielokrawędziowych nabiegunników (7), z których każda przedzielona jest magnesem trwałym (8), a pomiędzy nimi umieszczona jest także w obudowie uszczelnienia (2), para nabiegunników o przekroju prostokątnym (4), przedzielona magnesem trwałym (5). Na wale (1) osadzona jest tulejka (3), której kołnierz (3a) umieszczony jest z luzem w komorze, utworzonej pomiędzy nabiegunnikami o przekroju prostokątnym (4) przedzielonymi magnesem trwałym (5), przy czym na bocznych powierzchniach kołnierza (3a) tulejki (3) wykonane są występy uszczelniające. Ciecz magnetyczna (6) znajduje się w promieniowych szczelinach δr pomiędzy występami uszczelniającymi wielokrawędziowych nabiegunników (7) usytuowanymi na ich wewnętrznych cylindrycznych powierzchniach, a zewnętrznymi walcowymi powierzchniami tulejki (3) oraz w szczelinach osiowych δa pomiędzy występami uszczelniającymi na bocznych powierzchniach kołnierza (3a) tulejki (3), a bocznymi gładkimi powierzchniami nabiegunników o przekroju prostokątnym (4), położonymi po obu stronach kołnierza (3a) tulejki (3) lub w pierścieniowej szczelinie pomiędzy zewnętrznym obwodem kołnierza (3a) tulejki (3), a wewnętrzną powierzchnią cylindryczną magnesu (5).A hybrid seal with a magnetic liquid, especially for a high-speed shaft, has two pairs of multi-edge pole pieces (7) embedded in the housing (2), each of which is separated by a permanent magnet (8), and between them a pair of pole pieces is also placed in the seal housing (2). with a rectangular cross-section (4), separated by a permanent magnet (5). A sleeve (3) is mounted on the shaft (1), the collar (3a) of which is placed loosely in a chamber formed between pole pieces with a rectangular cross-section (4) separated by a permanent magnet (5), and on the side surfaces of the sleeve collar (3a) (3) sealing lugs are made. The magnetic fluid (6) is located in the radial gaps δr between the sealing lugs of the multi-edge pole pieces (7) located on their internal cylindrical surfaces and the external cylindrical surfaces of the sleeve (3) and in the axial gaps δa between the sealing lugs on the side surfaces of the flange (3a) of the sleeve (3), and the side smooth surfaces of the pole pieces with a rectangular cross-section (4), located on both sides of the flange (3a) of the sleeve (3) or in the annular gap between the outer circumference of the flange (3a) of the sleeve (3) and the inner cylindrical surface of the magnet ( 5).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423713A PL233726B1 (en) | 2017-12-04 | 2017-12-04 | Hybrid seal with magnetic fluid, preferably for a high-speed shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL423713A PL233726B1 (en) | 2017-12-04 | 2017-12-04 | Hybrid seal with magnetic fluid, preferably for a high-speed shaft |
Publications (2)
Publication Number | Publication Date |
---|---|
PL423713A1 true PL423713A1 (en) | 2019-06-17 |
PL233726B1 PL233726B1 (en) | 2019-11-29 |
Family
ID=66809677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL423713A PL233726B1 (en) | 2017-12-04 | 2017-12-04 | Hybrid seal with magnetic fluid, preferably for a high-speed shaft |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL233726B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097853A (en) * | 1961-09-29 | 1963-07-16 | Gen Electric | Dynamic seal |
US4054293A (en) * | 1976-12-27 | 1977-10-18 | Borg-Warner Corporation | Hybrid magnetic fluid shaft seals |
PL215140B1 (en) * | 2007-07-30 | 2013-10-31 | Akad Gorniczo Hutnicza | Sealing with magnetic liquid |
PL225374B1 (en) * | 2013-12-17 | 2017-04-28 | Politechnika Gdańska | Multistage sealing with magnetic fluid for rotating shaft |
-
2017
- 2017-12-04 PL PL423713A patent/PL233726B1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097853A (en) * | 1961-09-29 | 1963-07-16 | Gen Electric | Dynamic seal |
US4054293A (en) * | 1976-12-27 | 1977-10-18 | Borg-Warner Corporation | Hybrid magnetic fluid shaft seals |
PL215140B1 (en) * | 2007-07-30 | 2013-10-31 | Akad Gorniczo Hutnicza | Sealing with magnetic liquid |
PL225374B1 (en) * | 2013-12-17 | 2017-04-28 | Politechnika Gdańska | Multistage sealing with magnetic fluid for rotating shaft |
Also Published As
Publication number | Publication date |
---|---|
PL233726B1 (en) | 2019-11-29 |
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