US 12,138,646 B2
Micro-nozzle having an integrated filter
Alon Greenenko, Royston (GB); Arnau Perdigo-Oliveras, Royston (GB); Chung Man Cheung, Royston (GB); Daniel Geoffrey Tyler Strange, Royston (GB); Jianye Wang, Royston (GB); Pavel Kohout, Royston (GB); and Robert Gordon Maurice Selby, Royston (GB)
Assigned to TTP Plc, Royston (GB)
Appl. No. 17/280,266
Filed by TTP PLC, Royston (GB)
PCT Filed Sep. 30, 2019, PCT No. PCT/GB2019/052754
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/065352, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 1815944 (GB), filed on Sep. 28, 2018.
Prior Publication US 2022/0001412 A1, Jan. 6, 2022
Int. Cl. B05B 15/40 (2018.01); B01D 29/01 (2006.01); B01D 29/50 (2006.01)
CPC B05B 15/40 (2018.02) [B01D 29/50 (2013.01); B01D 29/01 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A micro-nozzle with an integrated filter structure for receiving fluids at pressures between 0.1 MPa to 50 MPa, comprising:
at least one fluid inlet;
a fluid outlet comprising at least one orifice; and
a primary filter structure positioned downstream from the at least one fluid inlet and arranged to provide statistical filtration of fluid passing therethrough, the primary filter structure comprising a plurality of first elements spaced apart a distance greater than a diameter of the at least one orifice of the outlet,
wherein each of the first elements comprises a plurality of sub-elements which are laterally spaced apart a distance less than the distance at which the plurality of first elements is laterally spaced apart,
wherein the first elements are arranged with a staggered configuration whereby to define a plurality of meandering flow paths for the fluid,
wherein the distance between the plurality of sub-elements is configured to generate a lower pressure region between the plurality of sub-elements relative to a pressure between adjacent first elements.