US 12,440,783 B2
Vortex flow device for removing foreign matter from a liquid
Makoto Tashiro, Tokyo (JP)
Assigned to BUNRI INCORPORATION, Tokyo (JP)
Filed by Bunri Incorporation, Tokyo (JP)
Filed on Nov. 23, 2022, as Appl. No. 17/993,780.
Application 17/993,780 is a continuation of application No. PCT/JP2021/048111, filed on Dec. 24, 2021.
Prior Publication US 2023/0086777 A1, Mar. 23, 2023
Int. Cl. B01D 21/26 (2006.01); B01D 21/00 (2006.01); B01D 21/02 (2006.01); B01D 21/24 (2006.01); B04C 1/00 (2006.01); B04C 9/00 (2006.01)
CPC B01D 21/26 (2013.01) [B01D 21/02 (2013.01); B01D 21/24 (2013.01); B04C 1/00 (2013.01); B04C 9/00 (2013.01); B01D 21/0009 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A device comprising:
a tank portion including a first tank to which a liquid containing foreign matters flows; and
a pump provided at a central portion of the first tank to discharge the liquid stored in the first tank,
the first tank having
a bottom surface,
a first side surface, a second side surface, a third side surface, and a fourth side surface, the first to fourth side surfaces connected to the bottom surface,
a first corner, a second corner, a third corner, and a fourth corner, each of the first to fourth corners connected to the bottom surface and two of the first to fourth side surfaces,
a first inclined surface, a second inclined surface, a third inclined surface, and a fourth inclined surface, and each of the first to fourth inclined surfaces covering one of the first to fourth corners,
a first flow path, and
a second flow path,
the first flow path having a first bottom plate provided along the first side surface,
the second flow path having a second bottom plate provided along the second side surface, opposed to the first side surface,
each of the first to fourth inclined surfaces being inclined so that a distance from the bottom surface toward each of first to forth inclined surfaces is decreasing from a connecting portion to which two of the first to fourth side surfaces are connected toward the central portion,
a flow direction of the liquid flowing through the second flow path being opposite to a flow direction of the liquid flowing through the first flow path,
a vortex flow being generated in the first tank by the liquid flowing through the first flow path and the second flow path to collect the foreign matters in the central portion of the first tank and discharge the foreign matters by the pump.