I-fan clutch iyifeni yokupholisa injini ye-thermostatic ekwazi ukukhulula isondo emazingeni okushisa aphansi lapho ukupholisa kungadingeki, okuvumela injini ukuthi ifudumale ngokushesha, ikhulule umthwalo ongadingekile enjinini. Njengoba amazinga okushisa enyuka, i-clutch iyabandakanyeka ukuze ifeni ishayelwe amandla enjini futhi inyakazise umoya ukuze ipholise injini.
Uma injini ipholile noma isezingeni lokushisa elijwayelekile lokusebenza, i-fan clutch inqamula isiphepho sokupholisa serediyetha esishayelwa ngomshini, ngokuvamile esitholakala ngaphambili kwephampu yamanzi futhi sishayelwa ibhande kanye ne-pulley exhunywe ku-crankshaft yenjini. Lokhu konga amandla, ngoba injini akudingeki ukuthi ishayele isiphephetha-moya ngokugcwele.