POSITIVE DISPLACEMENT SUPERCHARGERS
The Harrop range of Superchargers utilise Eaton’s Twin Vortices
Series™ (TVS™) technology. Our range are a Roots-type positive
displacement supercharger designed for a variety of engine applications
delivering more power and torque for uncompromising, high-performance
driving.
The TVS™ supercharger’s patented design features twin four-lobe rotors
with 160-degree twists and high-flow inlet and outlet ports that greatly
enhance thermal efficiency, deliver higher volumetric capacity and
enable higher operating speeds. The TVS™ supercharger is capable of
running with a high thermal efficiency (up to 76 percent) across a wider
operating range. The higher helix angle of the rotors coupled with redesigned inlet and outlet ports, improves the air-handling
characteristics without increasing the overall size of the unit.

The TVS™ improved noise and vibration characteristics eliminate additional
noise-reduction treatments, complexity and system cost. Additionally,
the supercharger incorporates a bypass system to reduce air handling
losses when boost is not required, resulting in better fuel economy.
The improvements incorporated into the TVS™ design allow for the use of a
smaller supercharger, reducing the package size and weight of the
system. The superchargers range from 900cc to 2650cc per revolution, and all
TVS™ superchargers have a 2.4 pressure ratio capability and a thermal
efficiency that exceeds 70 percent, which enables more compact packaging
and greater output.
Our range of superchargers set a new standard of performance and
reaffirms Harrop and Eaton’s leadership in the performance automotive
market.