Patent Number: 6,251,171

Title: Air cleaner

Abstract: An electrostatic air cleaner includes a corona charging section and a precipitation section. The charging section includes a first and a second array of substantially parallel earth wires, each array being disposed in a respective plane substantially perpendicular to the direction of air flow, and a third array of substantially parallel corona wires sandwiched between the first and second arrays. With this design, the spacing between earth wires and the spacing between corona wires can be selected independently to obtain the most favorable corona discharge conditions. The arrangement also enables easy cleaning of the earth wires.

Inventors: Marra; Johannes (Eindhoven, NL), Boogaard; Arjen (Eindhoven, NL)

Assignee: U.S. Philips Corporation

International Classification: B03C 3/40 (20060101); B03C 3/60 (20060101); B03C 3/04 (20060101); B03C 3/12 (20060101); B03C 003/08 ()

Expiration Date: 06/26/2018