US 12,005,526 B2
Exhaust gas filter for reflow oven
Yuwei Wang, Suzhou (CN)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Appl. No. 17/057,566
Filed by Illinois Tool Works Inc., Glenview, IL (US)
PCT Filed May 8, 2019, PCT No. PCT/US2019/031289
§ 371(c)(1), (2) Date Nov. 20, 2020,
PCT Pub. No. WO2019/217535, PCT Pub. Date Nov. 14, 2019.
Prior Publication US 2021/0205749 A1, Jul. 8, 2021
Int. Cl. B23K 3/08 (2006.01); B01D 39/10 (2006.01); B01D 39/16 (2006.01); B01D 46/00 (2022.01); B01D 46/12 (2022.01); B01D 46/42 (2006.01); B01D 46/62 (2022.01); B01D 53/00 (2006.01); B01D 46/10 (2006.01)
CPC B23K 3/08 (2013.01) [B01D 39/10 (2013.01); B01D 39/1692 (2013.01); B01D 46/0006 (2013.01); B01D 46/0041 (2013.01); B01D 46/12 (2013.01); B01D 46/4218 (2013.01); B01D 46/62 (2022.01); B01D 53/002 (2013.01); B01D 46/10 (2013.01); B01D 2267/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An exhaust gas filter for a reflow oven, comprising:
a filter chamber, the filter chamber having a filter chamber top, the filter chamber top being provided with an air outlet, and the filter chamber having four sidewalls;
a filter element, the filter element being disposed inside the filter chamber and located below the air outlet;
a vapor chamber, the vapor chamber being disposed under the filter element and the vapor chamber comprising a top plate;
wherein, an upper transverse passage is formed between the top plate of the vapor chamber and the filter element, a gap is formed between one side of the top plate and one of the four sidewalls of the filter chamber, and the upper transverse passage is in fluid communication with the gap;
wherein, a filter chamber air inlet is provided on the one sidewall of the filter chamber which forms the gap with the top plate, the filter chamber air inlet is used for introducing air; and in the remaining three out of the four sidewalls of the filter chamber, one sidewall is provided with a filter chamber exhaust gas inlet, and the filter chamber exhaust gas inlet is used for introducing exhaust gas; and
wherein, the filter chamber air inlet and the exhaust gas inlet of the filter chamber are disposed in such a way that both air and the exhaust gas can enter the upper transverse passage through the gap.