DEVICE FOR FAN START-UP Russian patent published in 2014 - IPC F01P7/08 

FIELD: machine building.

SUBSTANCE: device comprises a sensitive element made from ferromagnetic material with Curie point equal to critical temperature of cooling liquid placed into a body from non-magnetic material and a permanent cylindrical magnet placed in it with the possibility of free movement inside the cavity, besides, the ends of the sensitive element and the permanent cylindrical magnet are connected with a spring, and the second end of the permanent cylindrical magnet rests against the body of the switch with magnetically controlled contacts, and the second end of the sensitive element has contact with the cooled medium.

EFFECT: higher reliability of device operation and simplified design of fan drive.

2 dwg