Search International and National Patent Collections

1. (WO2018100170) COOLING SYSTEM FOR ENGINES WITH ELECTROMAGNETIC FAN CLUTCH

Pub. No.:    WO/2018/100170    International Application No.:    PCT/EP2017/081212
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Dec 02 00:59:59 CET 2017
IPC: F01P 7/08
F16D 35/02
Applicants: PIAGGIO & C. S.P.A
Inventors: FRESCHI, Giacomo
MATTEO PUCCIONI
Title: COOLING SYSTEM FOR ENGINES WITH ELECTROMAGNETIC FAN CLUTCH
Abstract:
A cooling system (20) of an internal combustion engine (1) comprising a cooling fan (8) and a driving shaft (4), said fan (8) being connected to said driving shaft (4) by means of a clutch (5) comprising a first axially movable clutch member (11) and torsionally connected to the driving shaft (4) or to the fan (8) and a second clutch member (14) axially connected to the fan (8) or to the driving shaft (4); a magnetic element (18) disposed on said first clutch element (11); and an electromagnet (22) disposed on an intake aperture (10) so as to project towards the fan (8) and configured to attract said magnetic element (18) when electrically powered to engage the fan (8) on the driving shaft (4) if the internal engine temperature is above a reference value.