公开(公告)号：US11534709B2

公开(公告)日：2022-12-27

申请号：US17684866

申请日：2022-03-02

Applicant: COWAY CO., LTD.

Inventor： Dae-Sik Kang ,  Byoung-Phil Lee ,  Hyoung-Min Moon ,  Sang-Hyeon Kang ,  Dong-Hun Lee

IPC: B01D35/147 ,  B01D37/04 ,  B01D61/02 ,  B01D29/92 ,  B01D35/157

Abstract: Provided is a water purifier that includes a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.

公开(公告)号：US11285441B2

公开(公告)日：2022-03-29

申请号：US16084116

申请日：2017-03-07

Applicant: COWAY CO., LTD.

Inventor： Hyoung-Min Moon ,  Dae-Jung Jeong ,  Byoung-Phil Lee ,  Sung-Kon Cho ,  Sang-Hyeon Kang ,  Sung-Han Yun ,  Ju-Hyuk Eom ,  Dae-Sik Kang ,  Jung-Hun Lee

IPC: B01D61/12 ,  B01D61/02 ,  B01D65/02 ,  C02F1/00 ,  C02F1/44 ,  B01D61/08 ,  B01D61/10 ,  B01D37/04

Abstract: According to one embodiment of the present invention, a control method for a water purifier comprises the steps of: filtering inflowing water so as to generate purified water; extracting the generated purified water; measuring the flow rate of the purified water extracted per unit time; flushing a filter part by using purified water generated in the filter part, when the extraction of the purified water is complete; and draining the flushed water to the outside through a residential water outlet of the filter part, wherein, in the purified water generation step, discharging of residential water generated in the purified water generation step is blocked according to the accumulated flow rate during a one-time extraction of the purified water, calculated on the basis of the flow rate of the purified water.

公开(公告)号：US11794146B2

公开(公告)日：2023-10-24

申请号：US17532591

申请日：2021-11-22

Applicant: COWAY CO., LTD.

Inventor： Hyoung-Min Moon ,  Dae-Jung Jeong ,  Byoung-Phil Lee ,  Sung-Kon Cho ,  Sang-Hyeon Kang ,  Sung-Han Yun ,  Ju-Hyuk Eom ,  Dae-Sik Kang ,  Jung-Hun Lee

IPC: C02F1/44 ,  C02F1/00 ,  B01D61/12 ,  B01D61/08 ,  B01D61/10 ,  B01D61/02 ,  B01D37/04 ,  B01D65/02

CPC classification number: B01D61/12 ,  B01D37/043 ,  B01D61/02 ,  B01D61/025 ,  B01D61/08 ,  B01D61/10 ,  B01D65/02 ,  C02F1/00 ,  C02F1/008 ,  C02F1/441 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2313/90 ,  B01D2315/00 ,  B01D2321/02 ,  B01D2321/04 ,  C02F2209/40

Abstract: Provided is a water purifier comprising: a filter unit filtering water supplied from a water source, including a reverse osmosis filter; a discharge unit discharging water filtered by the filter unit externally; a flushing portion connected to the reverse osmosis filter; and a controller configured to flow water filtered by the reverse osmosis filter to the flushing portion, and to flush the reverse osmosis filter.

公开(公告)号：US11285415B2

公开(公告)日：2022-03-29

申请号：US16468529

申请日：2017-11-29

Applicant: COWAY CO., LTD.

Inventor： Dae-Sik Kang ,  Byoung-Phil Lee ,  Hyoung-Min Moon ,  Sang-Hyeon Kang ,  Dong-Hun Lee

IPC: B01D35/147 ,  B01D35/157 ,  B01D37/04 ,  B01D61/02 ,  B01D29/92

Abstract: A water purifier according to an embodiment of the present invention comprises: a filtering unit for producing purified water by filtering influent water; a TDS measuring unit for measuring the total dissolved solids (TDS) in the water flowing into the filtering unit; a purified water passage through which the purified water is discharged; a concentrated water passage through which concentrated water, filtered by the filtering unit, is discharged; a concentrated water flow control valve for controlling the flow rate of the concentrated water discharged through the concentrated water passage; and a control unit for adjusting the degree of opening and closing of the concentrated water control valve, on the basis of the TDS and the pressure of the water flowing into the filtering unit.