Title:
CHECK VALVE HAVING REVERSE-DIRECTION FLUID SUPPLY FUNCTION
Document Type and Number:
WIPO Patent Application WO/2017/123028
Kind Code:
A1
Abstract:
The present invention relates to a check valve having a reverse-direction fluid supply function, and more specifically, to a check valve having a reverse-direction fluid supply function capable supplying a fluid in a reverse direction by arbitrarily opening a fluid passage, formed on the central axis of a disk that is provided so as to open or close a flow path through which the fluid is supplied. The present invention comprises: a valve main body to the inside of which the fluid is introduced; a shaft which is installed on the valve main body and advances into the valve main body or retreats out of the valve main body; the disk, which is arranged inside the valve main body, for opening or closing the valve main body; and a spring arranged between the disk and an inner side surface of the valve main body, wherein the disk opens the valve main body by means of fluid pressure of the fluid, and blocks the valve main body by means of elastic reaction force of the spring or closes the valve main body by means of the movement of the shaft, when the fluid pressure of the fluid is removed.
Inventors:
LEE SANG HEON (KR)
HAN DONG IL (KR)
HAN DONG IL (KR)
Application Number:
PCT/KR2017/000431
Publication Date:
July 20, 2017
Filing Date:
January 12, 2017
Export Citation:
Assignee:
DO QOOM CORP LTD (KR)
International Classes:
F16K15/02; F16K15/06; F16K15/18; F16K27/02; F16K31/44; F16K31/50
Foreign References:
| US20120160346A1 | 2012-06-28 | |||
| KR100835860B1 | 2008-06-09 | |||
| US6105609A | 2000-08-22 | |||
| KR20090017788A | 2009-02-19 | |||
| US20030089869A1 | 2003-05-15 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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