Construction World March 2016

CONSTRUCTION WORLD

MARCH

2016

At the front left is the three-phase

synchronous generator, at the right

is the diesel engine, and in the

middle is the Stiebel transmission

with a powershift driven pump

acting as a link between the com-

For these special challenges, flexibility is needed, particularly in

regard to transmissions. Therefore, the specialists at Stiebel-Get-

riebebau – located in Waldbröl, near to Cologne – individually

tune your drives for mobile hydraulic applications to act as a dynamic link

between the combustion engine and the hydraulic/electrical system.

Powershift pump on the drive side

Currently, a power take-off transmission for pumps that was specially

developed at Stiebel-Getriebebau is helping construction and agricultural

equipment become more energy-efficient. With a maximum input power of

520 kW, a power take-off output of 200 kWon each axle, and a power take-off

ratio of 1:0.8 for the engine speed, it is part of a modular engine-transmission

unit that enables economical energy and fuel consumption.

As a diesel-electric hybrid solution, it is also an environmentally friendly

solution. In normal operating mode, the diesel engine and the trans-

mission are in use .

These operate the hydraulic auxiliary equipment and a generator that

charges the energy storage system. The braking energy is also used sustain-

ably, with the help of the powershift pump output of the power take-off

transmission for pumps, and supplied by the generator as electrical energy

to the energy storage system.

Disconnecting the auxiliary equipment and returning the energy from

the energy storage system to the drive train then enables particularly effi-

cient vehicle operation. Thus, maximum efficiency can be achieved by the

hybrid diesel-electric power generation, increasing traction and reducing

operating costs.

“Our goal is to help shape technological progress, especially in such

projects where all of our experience and knowledge are in demand.

We provide very precise developments in this field, matching the require-

ments down to the smallest technical detail,” says Paul Hermann Schum-

acher, managing director of Stiebel-Getriebebau.

“The demand for environmentally friendly electrical traction drives

has increased noticeably in recent years. And the proven flexibility of

our compact, robust and precise transmissions will also continue to play

an ever-increasing role in this field, whether for tractors, harvesters,

loaders, excavators, or other construction and agricultural machinery of

reputable manufacturers”

At Stiebel-Getriebebau, the technical details are already taken into

consideration during the selection of the material. For example, the shaft

seals of Stiebel power take-off transmissions for pumps are made of viton,

while the toothed hub profiles are made of chromium molybdenum steel.

Oil-lubricated hollow profile shafts prevent wearing of the pump shafts.

The SAE motor connections provide thermal relief of the torsional vibration

dampers using precisely matched air vents. The diversity in the transmission

ratios also provides a high degree of flexibility. In many cases, oil cooling

can be eliminated because Stiebel combines a special lubrication system

with strongly ribbed housings.

This results in high efficiency. In addition, there are many special options

that will also be implemented in future energy-efficient transmission solu-

tions. Visitors can look forward to the innovations from Stiebel-Getriebebau

at the upcoming bauma trade fair.

SMART DRIVE

ADVANCES

More than ever, intelligent and sustainable drive

solutions that help reduce fuel consumption and

thereby ensure environmentally friendly and

efficient operation are in demand today in the field

of construction and agricultural machinery.

bustion engine and the hydraulic/

electrical systems.

NET ZERO

certification

Key statistics

• To play its part in limiting global warming to 2 degrees, the

buildings sector must reduce emissions by 84 gigatonnes by

2050 – the equivalent of not building 22 000 coal powered

plants. World GBC has committed to achieving this goal by

enabling a market transformation.

• This large-scale reduction of emissions is possible – but it

will take transformative action and collaboration.

• By 2018, green building in the US will account for over

3,3 million jobs, more than one third of the entire US

construction sector.

• Green Building can improve people’s health, well-being and

productivity – for example, improved indoor air quality can

lead to productivity improvements of up to 11%.

Brian Wilkinson, CEO of Green

Building Council South Africa.

• To target 2 500 commercial green building certifications,

representing around 10 million square metres of gross building area

• A target of 10 000 residential green building certified homes

• A target of 12 000 professionals to be trained in green building

principles and practices.

• 10% of local government staff to be trained in green building

principles and practices.

• Inspiring and assisting fellow African national to establish and

capacitate GBCs in their countries by providing support with rating

tools, training, and so forth, with a target of five more established

African GBCs.

Terri Wills, CEO of the World Green Building Council, said: “The Green

Building Council South Africa is demonstrating real leadership on green

buildings by launching its ambitious commitments at these critical

climate change negotiations in Paris.

“We know how to build bigger and bigger. The challenge is to build

bigger and better. And it is commitments like these that will help to

transform the global buildings industry so that not only is a 2 degree

world possible tomorrow, but we can realise the benefits from this new

way of building – today.”

The GBCSA has an extensive member base of over 1 300 member

organisations each represented by thousands of individuals who have

become activators and imple-

menters of green building, in both

the private and public sector.

The GBCSA exists to transform

the way the built environment

is designed, constructed and

operated, to be environmentally

sustainable. This includes a crit-

ical focus on radically reducing

harmful emissions resulting from

building practices.