Title:
VALVE ASSEMBLY HAVING IMPROVED ROTATION GEAR OPERATION
Document Type and Number:
WIPO Patent Application WO/2018/124359
Kind Code:
A1
Abstract:
A valve assembly having improved rotation gear operation, according to the present invention, comprises: a rotation gear rotating around a center axis in a vertical direction through externally applied power and having a non-circular insertion hole on the center axis; a cylindrical cam of which the upper end is inserted into the insertion hole so as to be integrally rotated with the rotation gear while ascending or descending at the same time, wherein two or more tilted slide grooves are formed on the outer circumferential surface of the cylindrical cam; a forfeit shaft penetrating through the rotational axis of the cylindrical cam so as to integrally ascend or descend with the cylindrical cam while allowing independent rotation; a valve sheet coupled to the lower side of the forfeit shaft; a housing surrounding the bottom surface and the side surface of the cylindrical cam; two or more bearing units of which one side is fixedly coupled to the housing and the other side is inserted into respective slide grooves so as to allow sliding; a cover surrounding the top surface and the side surface of the rotation gear and provided with a pressing protrusion part extending downward from an area corresponding to the top surface of the rotation gear; and a plate spring which is compressed in between the top surface of the rotation gear and the bottom end of the pressing protrusion part to apply downward elastic force to the rotation gear.
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Inventors:
CHO HYUNG GEUN (KR)
Application Number:
PCT/KR2017/000143
Publication Date:
July 05, 2018
Filing Date:
January 05, 2017
Export Citation:
Assignee:
KORENS CO LTD (KR)
International Classes:
F02M26/66; F02M26/67; F02M26/68; F02M26/72; F16K31/524; F16K31/53
Foreign References:
| KR101604415B1 | 2016-03-18 | |||
| KR20120050967A | 2012-05-21 | |||
| KR20110028878A | 2011-03-22 | |||
| US8171919B2 | 2012-05-08 | |||
| JP2014040792A | 2014-03-06 |
Attorney, Agent or Firm:
KIM, Sun Kee et al. (KR)
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