Research Development Corporation of Japan

Denki Kogyo Company, Limited

Ishimori & Co., Ltd.

Motoo Yanagawa

An electrostatic dust collector for removing particles, such as smoke particles, pollen and the like from a gas stream passed therethrough. The dust collector includes a filter element formed of narrow strips of pliable, porous dielectric material superimposed, face to face, with electrodes therebetween and so that no air gap is formed between the face to face strips. The superimposed strip is coiled or randomly packed into a non-conductive bag, such as of nylon net, and positioned in a gas stream from which particles are to be removed and the pores of the dielectric material are charged to attract in such gas stream to the walls of the charged pores by applying a voltage to the electrodes.

Electrostatic dust collector

An electrostatic dust collector for removing particles, such as smoke particles, pollen and the like from a gas stream passed therethrough includes a filter element formed of narrow strips of pliable, porous dielectric material superimposed, face to face, with electrodes therebetween and so that no air gap is formed between the face to face strips. The superimposed strip is randomly packed into a non-conductive bag, such as of nylon net, and positioned in a gas stream from which particles are to be removed and the pores of the dielectric material are charged to attract particles in such gas stream to the walls of the charged pores by applying a voltage to the electrodes.

An electrostatic dust collector is provided with an electrode unit including first and second electrodes arranged to oppose each other across a solid insulator and having positive and negative potentials respectively applied thereto, the second electrode being so disposed that a leading edge portion thereof is located at a position inwardly of a leading edge portion of the first electrode. A gas passageway is formed on a side of the second electrode opposite the first electrode, and an electrically conductive filter element is arranged in the gas passageway so as to be in contact with the second electrode. A gas to be purified, such as air, is forcibly passed through the passageway by a motor-driven fan. The filter element consists of a material, such as steel wool, made up of a multiplicity of fine fibers to provide a large surface area. Owing to its electrical contact with the second electrode, the filter element traps airborne particles on the fine fibers by electrostatic induction.

Growing community of inventors

Tokyo, Japan

Motoo Yanagawa