Magnetic fluid seal
AssigneeMagnex Corporation
InventorsYong Woon KWAK, Jeong Hui HONG, Je In JEON, Gil Ho LEE
Life of this patent
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Abstract
One embodiment of the present disclosure provides a magnetic fluid seal including a rotating shaft, a pole piece disposed to surround the rotating shaft, a plurality of trenches formed on any one of the rotating shaft and the pole piece, a magnetic fluid provided between the other one of the rotating shaft and the pole piece and at least one of ends of the plurality of trenches, a blocking member provided in a space between the plurality of trenches, and a permanent magnet configured to apply a magnetic force to the magnetic fluid.
Claims8
A magnetic fluid seal comprising:
- a rotating shaft;
- a pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the rotating shaft and the pole piece;
- a magnetic fluid provided between the other one of the rotating shaft and the pole piece and at least one of ends of the plurality of trenches;
- a blocking member provided in a space between the plurality of trenches;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
A magnetic fluid seal comprising:
- a rotating shaft;
- a pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the rotating shaft and the pole piece;
- a magnetic fluid provided on the other one of the rotating shaft and the pole piece and ends of the plurality of trenches;
- a blocking member accommodation groove provided in at least one of the pole piece and the rotating shaft;
- a blocking member provided in the blocking member accommodation groove;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
A magnetic fluid seal comprising:
- a rotating shaft;
- a first pole piece disposed to surround the rotating shaft;
- a second pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the first pole piece and the rotating shaft;
- a magnetic fluid provided on the other one of the first pole piece and the rotating shaft and ends of the plurality of trenches;
- a blocking member accommodation groove provided in at least one of the second pole piece and the rotating shaft;
- a blocking member provided in the blocking member accommodation groove;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
A magnetic fluid seal comprising:
- a housing;
- a rotating shaft provided inside the housing;
- a pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the housing and the rotating shaft;
- a magnetic fluid provided on the other one of the housing and the rotating shaft and ends of the trenches;
- a blocking member provided in a space between the plurality of trenches;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
A magnetic fluid seal comprising:
- a housing;
- a rotating shaft provided inside the housing;
- a pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the housing and the rotating shaft;
- a magnetic fluid provided on the other one of the housing and the rotating shaft and ends of the trenches;
- a blocking member accommodation groove provided in at least one of the housing and the rotating shaft;
- a blocking member provided in the blocking member accommodation groove;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
A magnetic fluid seal comprising:
- a housing;
- a rotating shaft provided inside the housing;
- a first pole piece disposed to surround the rotating shaft;
- a second pole piece disposed to surround the rotating shaft;
- a plurality of trenches formed on any one of the first pole piece and the housing;
- a magnetic fluid provided on the other one of the first pole piece and the housing and ends of the plurality of trenches;
- a blocking member accommodation groove provided in at least one of the second pole piece and the housing;
- a blocking member provided in the blocking member accommodation groove;
- and
- a permanent magnet configured to apply a magnetic force to the magnetic fluid.
Dependencies are inferred from the claim text.