Electric field oil filter and method of filtering

Details Electric field oil filter and method of filtering Electric field oil filter and method of filtering

1984-06-28

1986-07-22

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204302, B01D 3506

Patent

active

046017992

ABSTRACT:
The filter assembly removes minute soot particles from diesel engine oil during service. It may be used to remove other minute particles from various oils. A charged metal screen, with a mesh size preferably in the range of 2 to 4 holes per linear inch, causes attraction of the minute soot particles. The electric potential causes the particles coagulate to form larger masses which may be filtered by an electrically non-conductive filtering element. Particles also collect on the mesh surface. A D.C electric potential is applied to the screen to create an average electric potential of about 250 or more V/mm between the screen and the grounded electrode.

REFERENCES:
patent: 2573967 (1951-11-01), Hamlin
patent: 2925372 (1960-02-01), Keehn
patent: 3567619 (1971-03-01), Brown
patent: 4059498 (1977-11-01), Crissman et al.
patent: 4248686 (1981-02-01), Gidaspow et al.

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