Patent ID: 9140315
Filing Date: 2015-09-22
Classification: F16D

Abstract:
1. A bimetal fan clutch with an oil storage formed in a disc-shaped rotor comprising: the disc-shaped rotor that is affixed to a shaft coupled with an engine between a lower case fixed to the shaft via a bearing and an upper case covering the lower case and having a space formed therein; the oil storage that is attached to one face of the rotor to be housed in the space and has a projection inserted into a central hollow part formed in the upper case; a bimetal oil valve that is provided inside the oil storage, wherein the bimetal oil valve changes its shape in response to heat transferred through a bimetal assembly mounted through the projection and thereby opens/closes a through-hole formed in the oil storage; and a return line that is formed in the lower case so that oil ejected to the space through the through-hole is collected into the oil storage, wherein the lower case includes a discharge line extending outward from the return line, and the discharge line is blocked by a steel ball inserted thereinto.