Fan Drive [FD 05 T A]
48Pages

ELECTRO-HYDRAULIC FAN DRIVE SYSTEM Headquarters: CASAPPA S.p.A. Via Balestrieri, 1 43044 Lemignano di Collecchio Parma (Italy) Tel. (+39) 0521 30 41 11 Fax (+39) 0521 80 46 00 IP Videoconferencing E-mail: info@casappa.com www.casappa.com

Electro-hydraulic fan drive system INDEX Subject Modification from former edition. ID02 DCAT043-001

Electro-hydraulic fan drive system One of Casappa’s aims is to develop targeted engineering solutions to improve machine performance. Designers of vehicle cooling systems require complete and flexible control systems. A cooling fan featuring a hydraulic drive offers significant advantages over traditional solutions with electric or belt drives. ADVANTAGES OF THE HYDRAULIC SYSTEM vs OTHER TECHNOLOGIES More powerful and more effective zz Reverse function available zz Energy savings and low noise level zz Flexibility in cooling system design zz Integrated controls zz Reduced overall dimensions...

Electro-hydraulic fan drive system HYDRAULIC FAN DRIVE 0 FIXED DISPLACEMENT SYSTEM Fan speed proportional to the engine speed ► Fixed ratio - Gear pump and motor - Anti-cavitation valve - Pressure relief valve fixed setting - Pressure relief valve adjustable setting Low cost hydraulic solution Energy waste Wasted power Energy saving compared to hydraulic fan drive solution All the valves integrated in the motor Still some energy waste ELECTRO-HYDRAULIC FAN DRIVE 0 FIXED DISPLACEMENT SYSTEM Fan speed independent from engine speed ► Two speed ► Variable speed ► Variable speed and reverse...

Electro-hydraulic fan drive system FAN DRIVE AVAILABLE SYSTEMS ELECTRO-HYDRAULIC FAN DRIVE Ø VARIABLE DISPLACEMENT SYSTEM Enhanced energy saving Fan speed independent from engine speed More expensive than previous types Variable speed ff Variable speed and reverse function ff - Variable displacement axial piston pump - Fixed displacement gear motor - Pressure relief valve fixed setting - Electro-proportional pressure compensator - Electro-proportional pressure compensator and reverse valve - Electronic control unit and sensors ELECTRO-HYDRAULIC FAN DRIVE: FIXED vs VARIABLE DISPLACEMENT...

Electro-hydraulic fan drive system ANTI-CAVITATION VALVE • Motor protected against every system stop MAX. PRESSURE RELIEF VALVE FIXED SETTING AND ANTI-CAVITATION VALVE • Motor protected against any pressure peak and every system stop Max. pressure relief valveFixed setting value bar 50 70 80 100 120 125 140 150 160 175 180 190 200 210 230 250 The valve is sized to control a Q=60 l/min (15.85 US gpm) maximum flow rate. For different values, please consult our technical sales department. (©) value in bar Order example: MAX. PRESSURE RELIEF VALVE...

Electro-hydraulic fan drive system • Large size fans • Motor protected against any pressure peak and every system stop • ON/OFF solenoid valve to switch between two speed Intermediate speed adjustments are not possible Unloading valve 0 Mounting positions (a) B C (a): Mounting positions see page 12 - (b): Connectors see page 13 Max. pressure relief valveFixed setting value bar 50 70 80 100 120 125 140 150 160 175 180 190 200 210 230 250 VPIF ( )(psi) (725) (1015) (1160) (1450) (1740) (1813) (2030) (2175) (2320) (2538) (2610) (2755) (2900) (3045)...

Electro-hydraulic fan drive system FIXED DISPLACEMENT SYSTEM - VARIABLE SPEED PROPORTIONAL RELIEF VALVE ANTI-CAVITATION VALVE Motor protected against every zz system stop Precise control of coolant temperazz ture Maximum fan speed in case of conzz trol current failure Engine speed Pressure/current curve Pressure/flow curves SAE12/2 CAVITY 118 Proportional relief valve - Technical data 60 l/min (15.85 US gpm) - SAE10/2 cavity 180 l/min (47.56 US gpm) - SAE12/2 cavity Proportional relief valve PRV - Max. pressure setting range (b) (a): Mounting positions see page 12 - (b): Value in bar - (c):...

Electro-hydraulic fan drive system 'A CASAPPA FIXED DISPLACEMENT SYSTEM - VARIABLE SPEED AND REVERSE FUNCTION PROPORTIONAL RELIEF VALVE REVERSE VALVE_ANTI-CAVITATION VALVE • Motor protected against every system stop zzPrecise control of coolant temperature • Reversible fan drive feature allows fan to clean radiator • Maximum fan speed in case of control current failure Max. flow 60 l/min (15.85 US gpm) - SAE10/2 cavity Pressure/current curve Pressure/flow curves O 05/02.2018 Proportional relief valve PRV - Q - 0 - 0 - © 0 © Mounting positions (a) Max. pressure setting range (b) (a):...

Electro-hydraulic fan drive system VARIABLE DISPLACEMENT SYSTEM - VARIABLE SPEED ELECTRO-PROPORTIONAL PRESSURE COMPENSATOR (integrated on the pump) PEC ... MAX. PRESSURE RELIEF VALVE FIXED SETTING AND ANTI-CAVITATION VALVE (integrated on the motor) VPIF (...) Pressure/current curve • Enhanced energy saving • The same piston pump can be used as main pump in a LS system • Motor protected against every system stop • Precise control of coolant temperature • Maximum fan speed in case of control current failure Electro-proportional pressure compensator_ To be defined according to the...

Electro-hydraulic fan drive system 'A CASAPPAVARIABLE DISPLACEMENT SYSTEM - VARIABLE SPEED AND REVERSE FUNCTION ELECTRO-PROPORTIONAL PRESSURE COMPENSATOR (integrated on the pump) PEC ... REVERSE VALVE (integrated on the motor) REV ... MAX. PRESSURE RELIEF VALVE FIXED SETTING AND ANTI-CAVITATION VALVE (integrated on the motor) VPIF (...) • Enhanced energy saving • The same piston pump can be used as main pump in a LS system • Motor protected against every system stop • Precise control of coolant temperature • Maximum fan speed in case of control current failure • Reversible fan drive...

Electro-hydraulic fan drive system MOUNTING POSITION A MOUNTING POSITION B MOUNTING POSITION C

Electro-hydraulic fan drive system CONNECTOR: Metri Pack 150 M Protection: IP69K with mating connector mounted CONNECTOR: Deutsch DT04-2P D Protection: IP69K with mating connector mounted Protection: IP65 with mating connector mounted CONNECTOR: Junior Timer JT/A Protection: IP67 with mating connector mounted Technical data Technical data For proportional relief valve and reverse valve For Unloading valve Connectors Metri Pack 150, Deutsch DT04-2P, Connectors Metri Pack 150, Deutsch DT04-2P, DIN 43650, Junior Timer DIN 43650, Junior Timer Maximum control...