Electrohydrodynamic pump (EHD pump) with electrode arrangement

Details Electrohydrodynamic pump (EHD pump) with electrode arrangement Electrohydrodynamic pump (EHD pump) with electrode arrangement

2011-03-29

2011-03-29

Kramer, Devon C (Department: 3746)

Pumps

Electrical or getter type

C361S230000, C239S690000

Reexamination Certificate

active

07914262

ABSTRACT:
To improve the configuration of electrodes disposed in the fluid channel of EHD pumps, and to reduce of the fluid channel of EHD pumps, as well as to reduce the cost of producing EHD pumps, and to increase the pumping pressure of EHD pumps. A hollow conical metal electrode open at the top end and the bottom end is used facing a rod-shaped metal electrode, and an electrically insulated fluid outflow channel is formed facing the hollow conical metal electrode, with the hollow conical metal electrode and rod-shaped metal electrode sharing a central axis, so that the two electrodes are disposed coaxially, and the rod-shaped metal electrode is disposed from the inner portion of the hollow conical metal electrode to the inner portion of the fluid outflow channel, and a portion of the rod-shaped metal electrode, positioned at the interface of at least the inner portion of the hollow conical metal electrode and the fluid outflow channel, serves as an exposed metal part, with this exposed metal part being caused to face the inner surface of the hollow conical metal electrode, and when an electric field is applied across the hollow conical metal electrode and the rod-shaped metal electrode, there is introduced a fluid wherein are formed dissociated ions, and high voltage direct current is applied across the hollow conical metal electrode and the rod-shaped metal electrode.

REFERENCES:
patent: 3081020 (1963-03-01), Rostas
patent: 3156847 (1964-11-01), Schweriner
patent: 3519855 (1970-07-01), Gourdine
patent: 4634057 (1987-01-01), Coffee et al.
patent: 5121286 (1992-06-01), Collins
patent: 5907469 (1999-05-01), Kim et al.
patent: 7236344 (2007-06-01), McCullough
patent: 7375945 (2008-05-01), Izumi et al.
patent: 2001/0050881 (2001-12-01), Depaoli et al.
patent: 2004/0195403 (2004-10-01), Atterbury et al.
patent: 2006/0110544 (2006-05-01), Kim et al.
patent: 2006/0250746 (2006-11-01), McCullough
patent: 2003-284316 (2003-03-01), None
patent: 2005269809 (2005-09-01), None
patent: 2006-158169 (2006-06-01), None
English Abstract of JP2005269809A.

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