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17-05-2007
The
type 487 TPD-SAE is a compact new Voith Turbo
fluid coupling with a power range up to 440
kW at 2100 rpm. The fill controlled coupling
has been developed for plant and mobile machine
manufacturers with diesel engine applications
such as shredders, crushers, dredges, piston
and centrifugal pump drives. They are fitted
by direct mounting on standardized SAE engine
flywheel and housing connections.
The
key feature of the new fluid coupling is its
application-specific dimensioning. One of the
primary design objectives of this unit was to
make it as compact as possible resulting in
easier retrofit opportunities to replace problematic
clutch systems. Additional design targets included
simple coupling operation and maintenance, low
service costs and long service life.
The
development of the 487 TPD-SAE type coupling
was based on a market analysis and Voith's extensive
knowledge in fluid coupling design and production.
It is operated with a closed oil circuit and
enables the driven machine to be connected and
disconnected while the engine is running by
filling and draining the hydrodynamic coupling,
at any engine speed. As a result of this operational
function, the Voith Turbo fluid coupling can
perform the function of a mechanical clutch
coupling, which is frequently subject to considerable
wear and requires intensive maintenance, with
almost zero wear. Power can be transmitted to
the driven machine by 1) V-belt pulley, 2) or
a flexible element connecting coupling, 3) or
by a U-joint shaft. As the fill controlled coupling
is always started when empty, the diesel engine
starts up without load. As a result of the hydrodynamic
power transmission, the entire drive system
is continuously protected thanks to damping
of torsional vibration and load impacts.
Voith
Turbo recently commenced production of prototypes
for various customers and demand is expected
to grow quickly. The Voith 487 TPD-SAE fluid
coupling is designed to be marketed worldwide
for mobile industrial applications.
Voith
Turbo, the specialist for hydrodynamic drive,
coupling and braking systems for road, rail
and industrial applications, as well as for
ship propulsion systems, is a Group Division
of Voith AG.
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