

13
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.