Product category:
Hydraulic Components
News Release from: Denison Hydraulics Division
Edited by the Engineeringtalk Editorial
Team on 10 June 2002
Hydraulic fan drive takes award
Denison Hydraulics has been presented with an award for excellence for its mobile plant fan drive system.
At a prestigious luncheon, hosted by Reed Business Information, Denison Hydraulics was presented with an award for excellence, for its mobile plant fan drive system Awards were given to the most inventive new products introduced to the UK market during the past year, judged by an independent panel of industry experts, and are an accolade to the very best in plant, construction machinery, support products and applications
All of which will be on display at SED 2002.
Improved fuel economy, reduced pollution, lower noise levels and ease of maintenance are the main winning advantages of the new Denison system.
Denison Hydraulics UK Marketing Manager, Paul Newnham said: "It was an honour to be presented with the prize for excellence for our new fan drive system, and this endorses our feeling that we have developed a great new product for mobile plant designers.
A global design team within Denison pulled together all the company's experience and resources to come up with this new system which makes it a truly International product".
The new digitally controlled hydraulically powered fan drive system is intended for any heavy-duty engine cooling applications typically found in earth-moving, construction, transportation and railroad industries.
Based on an advanced digital controller and high-efficiency hydraulic motor technology, the new system offers improved vehicle emissions, better fuel efficiency, more precise thermal control, and improved reliability and maintainability in a broad range of heavy-duty cooling applications.
Today, on many vehicles, a single multipath radiator is used to cool engine oil, air conditioning refrigerant, transmission, drive-train, and hydraulic fluids, pre-condition combustion charge air, and even control the ambient temperature inside the engine compartment.
"Traditional direct-drive fan systems lack the flexibility and controllability to accomplish all of these tasks efficiently", Newnham added, "because their performance is almost entirely determined by engine speed.
But, engine speed and cooling load are not generally well co-ordinated in these kinds of applications, with the result that a lot of fuel is wasted turning a fan at much higher speeds than necessary".
By replacing the traditional mechanically coupled fan drive with the new Denison system, the fan is operated at optimum speed over the entire duty cycle, consuming only as much power as is actually needed to accomplish the task.
Making the fan drive independent of the engine provides several advantages in addition to improved operating efficiency.
For example, the completely self-contained fan/control system permits the radiator to be located virtually anywhere on the vehicle, opening previously unavailable possibilities for machine ergonomics, body design and maintenance access.
"Even when the radiator is placed in the traditional front of engine location", Newnham pointed out, "the ability to swing the entire self-contained radiator and fan assembly out of the way can greatly simplify engine and fan maintenance by providing unrestricted access to front-mounted components".
Denison will be launching the innovative system at SED 2002 and IWM in Torquay.
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