Centrifugal separator with sealing device

Details Centrifugal separator with sealing device Centrifugal separator with sealing device

2011-08-16

2011-08-16

Cooley, Charles E (Department: 1774)

Imperforate bowl: centrifugal separators

Including sealing means

For sealing between stationary and moving elements

C494S070000, C277S387000

Reexamination Certificate

active

07998051

ABSTRACT:
In a centrifugal separator comprising a first and second separator part having a centrifuge rotor and rotates during operation relative to the first separator part. A space connecting the first and second separator parts houses a rotating liquid body during operation. A mechanical sealing device is provided at the space and includes a first sealing element on the first separator part having a first contact surface, and a second sealing element on the second separator part having a second contact surface. The liquid body on the first sealing element or the second sealing element and displaces the same axially so that the first and second contact surfaces are pressed against each other. A pre-tensioning element exerts force on the sealing element which acts to displace the first contact away from the second contact surfaces so that a gap is formed, forming a throttling.

REFERENCES:
patent: 2637491 (1953-05-01), Fitzsimmons
patent: 2957711 (1960-10-01), Aspelin
patent: 3126338 (1964-03-01), Steinacker
patent: 3475033 (1969-10-01), Voitik
patent: 3685839 (1972-08-01), Frei
patent: 3767212 (1973-10-01), Ludwig
patent: 4017023 (1977-04-01), Hemfort
patent: 4810240 (1989-03-01), Zuccato
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patent: 4936821 (1990-06-01), Zuccato
patent: 2009/0280974 (2009-11-01), Klintentedt
patent: 3533402 (1987-03-01), None
patent: 555908 (1977-05-01), None

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