Hydraulic pumps are generating heat rejection for the hydraulic circuit of an aircraft.
This heat has to be extracted in order to keep the hydraulic circuits in appropriate thermal conditions.
This function is carried out by an assembly made of air / oil heat exchangers cooled by air ducted through the heat exchangers by fans. These fans might be electrically or hydraulically driven.
Liebherr supplies complete hydraulic cooling systems as needed on board commercial aircraft or any military application.