Shunting locomotive Rh 2070 of ÖBB with L 3r4 zseU2 turbo

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Voith Turbo
Shunting locomotive Rh 2070 of ÖBB with
L 3r4 zseU2 turbo reversing transmission
In 1998 Siemens AG of Austria and
Vossloh Schienenfahrzeug­technik
were awarded a contract covering
the supply of 90 diesel-hydraulic
shunting locomotives Class Rh 2070.
The new locomotives will replace
the existing stock of Class Rh 2048
and 2062 and in part also the ageing Class 2067.
Vehicle manufacturer
Vossloh Locomotives GmbH
Year of construction
Germany Engine
Caterpillar 3412 DITTA
Engine output
738 kW
Transmission input power
P1i = 660 kW
Top speed
45/100 km/h
Vehicle weight
72 t
6 700
14 130
2 400
Braking effort FB [kN]
L 3r4 zseU2
turbo reversing transmission
The turbo reversing transmissions
are fitted with two torque converters for each driving direction. Each
con­verter consists of an impeller, a
tur­bine wheel and a guide wheel.
The bodywork has a modular structure and accessibility is ensured by
easily (dis)mountable covers and
large doors.
The range-change gear is activated
while the locomotive is at a halt.
When switched off, the engine goes
automatically into ‘neutral’, so that
the locomotive can be towed even at
high speeds, without involving
the locomotive staff.
Tractive/Braking effort curves
Tractive effort F [kN]
L 3r4 zseU2 turbo reversing transmission
The concept of the Rh 2070 is
based on the standard locomotive
G 800/1200 from VSFT Kiel, which
has an excellent operating record
under the most diverse operating
conditions all over the world. Special emphasis was placed on the
per­fection of the design with regard
to maintenance and servicing.
20 40 60 80 100
Driving speed V [km/h]
When the converter is filled, power
is transmitted between the impeller
and the turbine wheel by the mass
inertia of the operating fluid. Depen­
ding on the driving condition, the rigid
guide wheel takes up the difference
between impeller and Turbine torque
which results in a stepless and inde­
pendent conversion of torque.
Gear changes and changes in the
driving direction occurs smoothly,
jolt- and wearfree, by filling and
draining the converter circuits.
Braking of the locomotive until the
stationary occurs by filling the con­­tra­
rotating converter. The locomotive
can also be comfortably operated
at constant speed in the low speed
range (v-constant mode).
G 1713 e 08/2008 1000 ak Printed in Germany.
Subject to modification due to technical development.
Voith Turbo GmbH & Co. KG
Market Area Rail
Alexanderstrasse 2
89522 Heidenheim, Germany
Tel. + 49 7321 37-4069
Fax +49 7321 37-7616
[email protected]

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