Method of purifying contaminated oil in a centrifugal...

Details Method of purifying contaminated oil in a centrifugal... Method of purifying contaminated oil in a centrifugal...

2003-12-10

2008-08-12

Cooley, Charles E (Department: 1797)

Imperforate bowl: centrifugal separators

Process

C494S027000, C494S901000

Reexamination Certificate

active

07410456

ABSTRACT:
In a centrifugal separator the liquid separation aid attracts/binds contaminating particles in oil supplied to a separation chamber. Purified oil is discharged through a central light phase outlet of the separation chamber, the liquid separation aid and separated particles are discharged through a heavy phase outlet. Purification is carried through using a starting liquid, supplied to the separation chamber to form a layer that creates a liquid seal in the centrifugal rotor, covering said heavy phase outlet. Contaminated oil and liquid separation aid are supplied to the separation chamber. While purified oil leaves the separation chamber through the light phase outlet, at starting liquid and liquid separation aid together with particles are discharged through the heavy phase outlet.

REFERENCES:
patent: 3960319 (1976-06-01), Brown et al.
patent: 4710159 (1987-12-01), Gullers
patent: 4820256 (1989-04-01), Nordstrom
patent: 6953423 (2005-10-01), Maehens
patent: 2006/0217254 (2006-09-01), Wase
patent: WO 95/14752 (1995-06-01), None

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