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1. (WO2018222336) COOKING EXHAUST HOOD VENTILATION SYSTEM

Pub. No.:    WO/2018/222336    International Application No.:    PCT/US2018/030836
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: F24C 15/20
Applicants: ILLINOIS TOOL WORKS INC.
Inventors: ROBISON, Russell
KWOK, Kui-Chiu
Title: COOKING EXHAUST HOOD VENTILATION SYSTEM
Abstract:
A commercial cooking equipment exhaust system includes an electrostatic precipitator unit is downstream of the filter unit. The electrostatic precipitator includes an ionizing section upstream of a collecting section. The ionizing section includes a plurality of ionizing flow paths having side profile patterns that vary in width between at least one wide section and at least one narrow section. The collecting section includes a plurality of collecting flow paths with side profile patterns of substantially uniform width and a repeating undulating side profile pattern. A UV light source may also be provided, with a controller operatively connected to control the UV light source via a dimmer to enable selective production various UV levels.