• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Mobile Hydraulic Tips

Mobile Hydraulic Tips focuses on pumps, fittings, valves, manifolds and other products and news in the Mobile Hydraulics industry.

  • Hydraulics Blog
  • Industry News
  • Engineering Basics
  • Components
    • Cylinders
    • Fittings / Couplings
    • Pumps / Motors
    • Sensors / Gauges
    • Valves / Manifolds
    • Related components
  • Design Guide Library
  • Advertise
  • SUBSCRIBE

Sauer-Danfoss Launches PLUS+1 Compliant Fan Drive Control for H1 Pump Family

April 11, 2013 By admin

Share

Sauer-Danfoss introduces a PLUS+1 Compliant Fan Drive Control (FDC) for the H1 family of piston pumps. FDC for H1 pumps utilizes proven closed-circuit technology to meet urgent customer demand for more efficient and robust hydraulic cooling fan systems in Tier 4-compliant mobile off-highway equipment applications. Ideal for meeting cooling system fan power requirements in machines above 20 kw (27 hp), FDC for H1 pumps offers proportional forward control with reversing and zero-speed capability, a maximum-displacement full forward speed fault position and PLUS+1 compatibility that reduces development costs and accelerates time to market.

With the implementation of Tier 4 diesel engine emissions regulations, many off-highway equipment manufacturers are migrating from belt-driven fan drive systems to more efficient hydraulic modulating fan drives. Unlike belt-driven systems, which operate the fan at a fixed speed at least as fast as required under the most demanding cooling conditions, modulating hydraulic fan drives continuously adjust fan speed to the lowest level required to maintain proper cooling. The variable-flow functionality of FDC for H1 pumps provide increased efficiency over gear-pump and many open circuit systems, offering Tier 4 equipment designers significant power and fuel savings in most operating conditions.

Reversing and zero-speed capability
In addition to proportional forward control that enables modulating hydraulic FDC, the H1 pump family offers the reversibility and zero-speed capability that are inherent in robust closed-circuit systems. FDC can automatically reverse the direction of the fan to purge trapped dirt and debris and restore cooling to peak efficiency. The product also offers the ability to stop the fan completely in circumstances where cooling needs are minimal.

Another benefit of a closed-circuit system is what occurs in the event of a controller or electrical failure. The fault position of the pump is toward full forward displacement, enabling the fan to run at full speed to maintain the integrity of the cooling system on the vehicle.  Maximum fan speed is determined by the Pressure Limiter Setting.

Sauer-Danfoss_CC-fan-drive-solution_H1Pump_S90Motor

Sauer-Danfoss system solution
Hydraulic FDC joins the Sauer-Danfoss PLUS+1 family of flexible, powerful mobile machine management products. FDC utilizes Sauer-Danfoss fan drive subsystem software and integrates seamlessly with the H1 pump family, enabling OEMs to develop customized fan drive solutions rapidly using the PLUS+1 GUIDE programming environment.

Hydraulic FDC for H1 is available in 12V and 24V controls and is applicable on all H1 frame sizes. While belt-driven fan drive systems typically must be mounted near the engine, hydraulic fan drives can be positioned almost anywhere on the machine — a major advantage for space-conscious designers of Tier 4 equipment. Relocating the cooling system outside of the engine compartment can allow room for the additional componentry required for diesel exhaust after-treatment, and gives the system designer an opportunity to improve system cooling by minimizing restrictions in the path as the air flows through the engine compartment.

Other benefits
Additional benefits of modulating hydraulic FDC include:

  • Increased power density makes more room available in the engine compartment for additional components/features.
  • Higher pump and motor pressure, power and life ratings
  • Minimized reservoir requirements, allowing for smaller reservoir size and delivering reduced potential for contamination
  • Available motor speed sensors

Sauer-Danfoss
www.sauer-danfoss.com

Filed Under: Components, Pumps / Motors Tagged With: sauerdanfoss

Primary Sidebar

Fluid Power Design Guides

fluid
“mht
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for Fluid Power Professionals.

Fluid Power World Digital Editions

Fluid Power World is written by engineers for engineers engaged in designing machines and or equipment in Off-Highway, Oil & Gas, Mining, Packaging, Industrial Applications, Agriculture, Construction, Forestry, Medical and Material Handling. Fluid Power World covers pneumatics, mobile hydraulics and industrial hydraulics.

Footer

Mobile Hydraulic Tips

FLUID POWER WORLD NETWORK

  • Fluid Power World
  • Hose Assembly Tips
  • Pneumatic Tips
  • Sealing and Contamination Tips
  • Fluid Power Distributor Lookup

MOBILE HYDRAULIC TIPS

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy