VISCOUS CLUTCH

WIPO Patent Application WO/2018/043980

A1

A viscous clutch according to the present invention, which is composed of a main body having a fluid storage chamber of a concave shape formed at a central portion thereof and a cover having a concave fluid operation chamber formed at a central portion thereof, comprises: a fan housing in which the main body is stacked on an upper side of the cover so that an opening of the fluid operation chamber can be covered; a drive shaft which extends in a vertical direction and has a lower end inserted through a bottom plate of the main body; a rotor fixedly coupled to the lower end of the drive shaft so as to be rotatable in the fluid operation chamber; a rotary assembly integrally coupled to the main body so as to cover an opening of the fluid storage chamber; a coil core mounted on an upper surface of the rotary assembly and generating an electromagnetic force when an electric current is applied from the outside; and a valve assembly for opening or closing a fluid outlet according to whether or not an electric current is applied to the coil core.

WO/2021/048644	FLUID COUPLING FOR A CONTINUOUS VARIABLE TRANSMISSION
JPH0617697	[Title of Invention] Transmission device
JP6418764	Electromagnetic clutch

CHA JUNG OK (KR)
CHOI BONG KU (KR)
LEE HAN HONG (KR)

PCT/KR2017/009136

March 08, 2018

August 22, 2017

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COOLING SYSTEM CO LTD (KR)

F16D33/00; F16D35/02

KR101305399B1	2013-09-06
KR20090059482A	2009-06-11
JP2006071100A	2006-03-16
JP4117791B2	2008-07-16
US20090084650A1	2009-04-02

MAJOR PATENT AND LAW FIRM (KR)

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