Torqeedo Technology Motor -
Propeller - Battery
Superior technology to
achieve the most efficient motors
Strong core: Torqeedo torque motors
is the core of a boat drive. With its torque motors,
Torqeedo sets new standards in the areas of torque,
efficiency and power per weight and volume. The motor which
equips the Travel 801 with the effective power of a 2 HP
combustion engine only weighs 500 g.
Torqeedo has uncompromisingly optimized the torque motor and,
with the introduction of synchronous motors, which come as
permanent excited magnet, electronically commutated and
designed as external rotor motors, has created true torque
conventional motors, the alternating field necessary for
driving the electric motor is provided by friction contacts
commonly known as brushes.
Torqeedo motors generate the
alternating field contact-free via an electronic digital
It is integrated in the drive system and regulates the motor
35,000 times per second.
The advantages of this method are significant. The caster
angle of the alternating field is better
adjusted to the load and speed, making it more efficient.
Additionally, there are no brush losses and the motors are
Outrunner design :
External rotor motor
electric motors, the rotor is located inside and surrounded by the
stator. The magnets are on the inside and the coils that generate
the alternating field are on the outside. Consequently, the magnetic
field where the torque is generated lies relatively far inside so
that this design only produces a low torque.
Torqeedo uses outrunners which have the coils arranged internally
and the magnets are on the outside. With this design, the field
where the torque is generated can be arranged further to the outside
of the motor. This provides additional leverage and produces a
higher torque. Additionally, the area covered by the magnets is
greater on the outside, which results in even more torque.
rare-earth magnets instead of the usual hexaferrite magnets. They
have six times the field strength, which means they deliver six
times the torque.
which reduces the
This is achieved in an oversized propeller, a size identical to that
of a 20 hp engine, thus creating an amazing couple and an available
power in the early rounds.
Generally, propellers with a large diameter and high pitch,
which turn slowly in water, have the highest degree of efficiency.
This is because a large propeller diameter results in a high
propellant flow, while a high propeller pitch has a positive effect
on the additional speed induced by the propeller.
In contrast, increasing rotational speed of the propeller leads to
decreasing efficiencies. As a result of their exceptionally high
torque, Torqeedo motors are able to drive highly efficient
In other words, they can rotate large high-pitch
propellers relatively slowly in the water.
Multidimensional propeller optimization
propellers used in outboard motors today are based on a
series of tests carried out in the 1940‘s to 1960‘s in the
Wageningen test facilities in the Netherlands and by the US
Navy. The results are reflected in general design principles
and applied by
rule of thumb.
However, for some years now, large modern ships
have been fitted with propellers designed according to a
multidimensional optimization calculation. Unlike standard
propellers, they feature pitches and cambers that are not (almost)
constant over all the propeller segments. Instead, pitch and
optimized on the basis of a vortex grid calculation method
and a stepwise optimization over many thousand iterations
for each propeller segment.
With these additional design scopes, Variable-
Pitch-Variable-Camber-Propellers achieve additional speed
induced by the propeller at top efficiency
Lithium battery technology
systems are by far the most powerful energy carriers currently
available. Their special feature is their high energy density giving
them the capability of storing larger quantities of energy than
In addition, lithium
batteries can withstand high current, resulting in the ability to
deliver their capacity even under high loads. Both of these
properties are very significant for applications in boat drives.
safety is a key requirement for lithium batteries. Four criteria
make a safe lithium battery:
- safe battery chemistry,
- precise and clean production processes at cell
- safe casing of individual battery cells,
- advanced protective electronics and safety
high-performance batteries lithium manganese, safest technology
based on lithium. These elements provide a very high concentration
of energy, delivering high voltages, safe and maintenance free.Les batteries Torqeedo se
rechargent n'importe où, sur une prise de courant ordinaire comme un
Torqeedo motors are build in such a way
that they require no maintenance.
Protect the natural
No water pollution
Torqeedo motors do not contaminate waters
with petrol or diesel oil.
Electric motors do not produce greenhouse
gasses or any form of pollutants such as carbon dioxide and nitrogen oxide.
While using a Torqeedo motor, you can hear
the wind and the waves.
légales - Copyright Jean-Pierre Masquelier