PL441197A1 - Hybrid magnetic fluid seal for rotating shaft - Google Patents

Hybrid magnetic fluid seal for rotating shaft

Info

Publication number
PL441197A1
PL441197A1 PL441197A PL44119722A PL441197A1 PL 441197 A1 PL441197 A1 PL 441197A1 PL 441197 A PL441197 A PL 441197A PL 44119722 A PL44119722 A PL 44119722A PL 441197 A1 PL441197 A1 PL 441197A1
Authority
PL
Poland
Prior art keywords
flange
rotating shaft
permanent magnets
flange sleeve
sleeve
Prior art date
Application number
PL441197A
Other languages
Polish (pl)
Inventor
Leszek Matuszewski
Piotr Bela
Original Assignee
Politechnika Gdańska
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
Application filed by Politechnika Gdańska filed Critical Politechnika Gdańska
Priority to PL441197A priority Critical patent/PL441197A1/en
Publication of PL441197A1 publication Critical patent/PL441197A1/en

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities
    • F16J15/3416—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities with at least one continuous groove
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F16J15/3444—Pressing means by magnetic attraction
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/54—Other sealings for rotating shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Przedmiotem zgłoszenia jest hybrydowe uszczelnienie z cieczą magnetyczną dla wału obrotowego, zawierające tulejkę kołnierzową nieruchomą, tulejkę kołnierzową ruchomą, magnesy trwałe spolaryzowane promieniowo, magnesy trwałe spolaryzowane osiowo, wielokrawędziowe nabiegunniki ciecz magnetyczną i pokrywę charakteryzujące się tym, że tulejka kołnierzowa nieruchoma (4) z kołnierzem (4a) jest osadzona w komorze dławnicowej obudowy (2), a tulejka kołnierzowa ruchoma (3) z kołnierzem (3a) jest osadzona na wale obrotowym (1), zaś na wewnętrznych powierzchniach cylindrycznych tulejki kołnierzowej nieruchomej (4) po obu stronach kołnierza (4a) są osadzone są magnesy trwałe (7 i 8) spolaryzowane osiowo, które przylegają do bocznych powierzchni kołnierza (4a) biegunami N oraz wielokrawędziowe nabiegunniki (9 i 10), które przylegają powierzchniami bocznymi do biegunów S magnesów trwałych (7 i 8). Na powierzchni cylindrycznej kołnierza (4a) tulejki kołnierzowej nieruchomej (4) oraz na powierzchni walcowej kołnierza (3a) tulejki kołnierzowej ruchomej (3) wykonane są występy uszczelniające, zaś we wnękach (3w) i (12w) usytuowanych naprzeciwko siebie, osadzone są magnesy trwałe (5 i 6) spolaryzowane promieniowo, przy czym magnes trwały (5) jest ustawiony prostopadle w układzie biegunów S-N, a magnes trwały (6) jest ustawiony prostopadle w układzie biegunów N-S względem osi wału obrotowego (1), a ciecz magnetyczna (11) znajduje się w szczelinach pierścieniowych (δ).The subject of the application is a hybrid seal with a magnetic liquid for a rotating shaft, containing a fixed flange sleeve, a movable flange sleeve, radially polarized permanent magnets, axially polarized permanent magnets, multi-edge pole pieces, magnetic fluid and a cover characterized by the fact that the stationary flange sleeve (4) with a flange (4a) is mounted in the stuffing box of the housing (2), and the movable flange sleeve (3) with a flange (3a) is mounted on the rotating shaft (1), and on the internal cylindrical surfaces of the fixed flange sleeve (4) on both sides of the flange ( 4a), axially polarized permanent magnets (7 and 8) are embedded, which adhere to the side surfaces of the flange (4a) with their N poles, and multi-edge pole pieces (9 and 10), which adhere with their side surfaces to the S poles of the permanent magnets (7 and 8). Sealing projections are made on the cylindrical surface of the flange (4a) of the fixed flange sleeve (4) and on the cylindrical surface of the flange (3a) of the movable flange sleeve (3), and permanent magnets are embedded in the cavities (3w) and (12w) located opposite each other. (5 and 6) radially polarized, with the permanent magnet (5) set perpendicularly in the S-N pole system, and the permanent magnet (6) set perpendicularly in the N-S pole system relative to the axis of the rotating shaft (1), and the magnetic liquid (11) is located in the annular gaps (δ).

PL441197A 2022-05-17 2022-05-17 Hybrid magnetic fluid seal for rotating shaft PL441197A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL441197A PL441197A1 (en) 2022-05-17 2022-05-17 Hybrid magnetic fluid seal for rotating shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL441197A PL441197A1 (en) 2022-05-17 2022-05-17 Hybrid magnetic fluid seal for rotating shaft

Publications (1)

Publication Number Publication Date
PL441197A1 true PL441197A1 (en) 2023-11-20

Family

ID=88838764

Family Applications (1)

Application Number Title Priority Date Filing Date
PL441197A PL441197A1 (en) 2022-05-17 2022-05-17 Hybrid magnetic fluid seal for rotating shaft

Country Status (1)

Country Link
PL (1) PL441197A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671679A (en) * 1986-05-05 1987-06-09 Mechanical Technology Incorporated Magnetic fluid devices such as magnetic fluid bearings, seals, and the like and an automatic magnetic fluid supply control system therefor
WO2003016755A2 (en) * 2001-08-16 2003-02-27 Isomag Corp. An improved magnetic seal
CN108953615A (en) * 2018-08-13 2018-12-07 广西科技大学 A kind of series parallel type magnetic fluid sealing structure
PL236181B1 (en) * 2018-12-27 2020-12-14 Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie Hybrid magnetic fluid seal for high speed shaft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4671679A (en) * 1986-05-05 1987-06-09 Mechanical Technology Incorporated Magnetic fluid devices such as magnetic fluid bearings, seals, and the like and an automatic magnetic fluid supply control system therefor
WO2003016755A2 (en) * 2001-08-16 2003-02-27 Isomag Corp. An improved magnetic seal
CN108953615A (en) * 2018-08-13 2018-12-07 广西科技大学 A kind of series parallel type magnetic fluid sealing structure
PL236181B1 (en) * 2018-12-27 2020-12-14 Akademia Gorniczo Hutnicza Im Stanislawa Staszica W Krakowie Hybrid magnetic fluid seal for high speed shaft

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