Electro-hydraulic Fan Drive System Efficient cooling power, where you need it.
Complete Fan Drive Systems The Electro-hydraulic (EH) Fan Drive System cools your engine and vehicle sub-systems by controlling a hydraulic pump and motor with a digitally programmable controller. The EH Fan Drive System equipped with the Two Channel Amplifier offers fast, quiet and efficient cooling for engine coolant, hydraulic fluid, charge air and entire engine compartment.
Applications and Benefits Applications: On-highway vehicles • Buses • Recreational vehicles Construction machinery • Excavators • Loaders • Cranes • Forklifts Agriculture machinery • Tractors • Forest machinery Benefits of Electronic Control Application Specific Benefits • Functions with Engine Control Module Input or Vehicle Sensor and Switch Inputs: – Allows a wide variety of configurations. • Communications via RS 323 or CANbus link: – Provides versatility in communications.
Fan Drive Configuration Power Requirement Electronic Controller Options • 12 VDC or 24 VDC Laptop or PC Communication • RS232 for communication with GUI Inputs • Five user configurable inputs – Two Thermistor inputs – Two Digital or Switch inputs TCA Electronic Controller It is prepared for CANbus communications on a vehicle network. Software for controlling the EH Fan Drive System is loaded in the controller memory at the factory.
1. Integrated Fan Drive System 2. S tand-alone Fan Drive System Interface the Fan Drive System to your engine control module to execute the cooling strategy exactly as directed by the engine control module. Define your own cooling logic using the TCA or EFX, electronic controller. Setup Screen Component Screen Monitor Screen The Setup Screen feature allows the user to define his own cooling logic by setting in the required parameters.
Integrated Fan Drive System Inputs from sensors and the engine 6 Fixed-displacement Pump The system cooling strategy is based on one ECM input, two Temperature Inputs and two Digital Inputs. In some cases, the ECM signal is too noisy or too weak to control a hydraulic circuit. The TCA or EFX solution amplifies and conditions the ECM signal to be used on a hydraulic circuit. A fixed displacement pump fan drive system is suited for a smaller and simpler cooling system.
Stand-Alone Fan Drive System Variable-displacement Pump This system is similar to the Fixed Displacement Pump system. For engines not equipped with an ECM, the cooling strategy is based on a temperature sensor and digital inputs to the TCA. TCA/EFX A variable displacement pump fan drive system is suited for larger and more complex cooling systems. A variable displacement pump reduces the displacement to match the flow as per the cooling demand.
Fan Drive System Pump and Motor Guide Motors Pumps Power (HP) 5 Fixed Displacement Pumps Eaton Gear 25500 Eaton Gear 26000 Eaton Gear GGP Aluminum Vickers V10 Vane Vickers V20 Vane Variable Displacement Pumps Vickers Piston PVE Eaton Piston 420 Vickers Piston PVH Fixed Displacement Motors Eaton Gear 26000 Eaton Gear GGP Aluminum (unidirectional) Eaton Piston 74111 Eaton Piston 74318 Eaton Piston 74624 Eaton Piston HD Vickers Vane MU2 Vickers Vane 25 M 10 15 20 25 30 35 40 45 50+ 21.3 - 55.
Fan Drive System Hydraulic Components Vane Pump Vane Motor Gear Pump • Fixed-displacement •F ixed-displacement • Fixed-displacement • 3.3 cc to 42.5 cc • 21.6 cc to 68.
Engineered Systems Other electro-hydraulic systems for steering, work circuit and fan drive applications. Electro-hydraulic Steer By Wire (EH-SBW) Electro-hydraulic Work Circuits The Electronic Transmission Automotive Control (ETAC) EH-SBW is a new technology steering system for vehicles where an electronic sensor replaces the rotary steering valve of a traditional hydraulic steering system.
Tailored to Your Needs World Class Product Lines and Systems Eaton is a global diversified industrial manufacturer. Eaton is a leader in: Aeroquip® • Fluid power systems Char-Lynn® • Electrical power quality, distribution and control Eaton • Automotive engine air management and fuel economy ® • Intelligent truck systems for fuel economy and safety Vickers® Weatherhead ® For more information, visit www.eaton.com.
Eaton Hydraulics Operations USA 14615 Lone Oak Road Eden Prairie, MN 55344 USA Tel: 952-937-9800 Fax: 952-294-7722 www.eaton.com/hydraulics © 2008 Eaton Corporation All Rights Reserved Printed in USA Document No.
