Title:
FLOW PATH SWITCHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/211381
Kind Code:
A1
Abstract:
A flow path switching device according to the present invention comprises: a case that includes a first nozzle through which a fluid flows in, a second nozzle through which the fluid is discharged, a plurality of inner discharge pipes in which the fluid supplied from the first nozzle flows, a plurality of inner inflow pipes in which the fluid supplied to the second nozzle flows, and a flow path connection unit which has a space that communicates the plurality of inner discharge pipes and the first nozzle or communicates the plurality of inner inflow pipes and the second nozzle; a valve which is rotatably arranged in the space of the flow path connection unit, and has a first chamber, which connects one of the plurality of inner inflow pipes and the first nozzle according to the arrangement of the valve, and a second chamber, which connects one of the plurality of inner discharge pipes and the second nozzle according to the arrangement of the valve; and a motor that is disposed on one side of the valve and rotates the valve. The first nozzle, the inner discharge pipes, and the flow path connection unit respectively have therein flow paths that are perpendicular to each other, a first chamber hole connecting the first chamber and a nozzle flow path formed inside the first nozzle is formed in the valve, and the flow path cross-sectional area of the nozzle flow path gradually decreases, from the inflow end of the first nozzle toward the flow path connection unit, to a size corresponding to the first chamber hole.
Inventors:
MIN JUNHO (KR)
SONG SUNGBAE (KR)
CHUNG MOONKEE (KR)
SONG SUNGBAE (KR)
CHUNG MOONKEE (KR)
Application Number:
PCT/KR2022/004196
Publication Date:
October 06, 2022
Filing Date:
March 25, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F25B41/20; F16K11/22; F16K31/04
Foreign References:
| US20170191574A1 | 2017-07-06 | |||
| JPH07260019A | 1995-10-13 | |||
| JP2017172773A | 2017-09-28 | |||
| KR101987469B1 | 2019-06-11 | |||
| CN1532439A | 2004-09-29 | |||
| JP5236009B2 | 2013-07-17 | |||
| JP6192706B2 | 2017-09-06 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
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