US 11,766,684 B2
Fan-shaped air suction spray nozzle automatically adjusting air suction speed
Chen Gong, Jiangsu (CN); Dongyang Li, Jiangsu (CN); Yuli Wang, Jiangsu (CN); and Bo Gao, Jiangsu (CN)
Assigned to Jiangsu University, Jiangsu (CN)
Appl. No. 17/608,995
Filed by Jiangsu University, Jiangsu (CN)
PCT Filed Jan. 7, 2021, PCT No. PCT/CN2021/070587
§ 371(c)(1), (2) Date Nov. 5, 2021,
PCT Pub. No. WO2022/134223, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011521849.5 (CN), filed on Dec. 21, 2020.
Prior Publication US 2022/0379324 A1, Dec. 1, 2022
Int. Cl. B05B 7/04 (2006.01); B05B 12/08 (2006.01); B05B 7/12 (2006.01); B05B 12/14 (2006.01)
CPC B05B 7/0475 (2013.01) [B05B 7/0425 (2013.01); B05B 12/085 (2013.01); B05B 7/0416 (2013.01); B05B 7/1254 (2013.01); B05B 12/1436 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An air suction spray nozzle that automatically adjusts an air suction speed, comprising a spray nozzle body, the spray nozzle body being provided with a liquid channel in communication with a nozzle hole, and further comprising a pressure groove and an air intake channel, wherein an inlet section of the liquid channel is in communication with the pressure groove, and the air intake channel is in communication with the liquid channel after penetrating through the pressure groove; an air intake orifice plate is installed in the pressure groove with an elastic damping apparatus, and a change in a pressure at an inlet of the liquid channel causes the air intake orifice plate to move between the pressure groove and the air intake channel; and the air intake orifice plate is provided with multiple through holes of the same or different sizes, which are configured to change an air intake volume in the liquid channel as the air intake orifice plate moves in the pressure groove.