An experimental rotary vane compressor which operates without contact
between the vanes and the casing.
A full design and development programme, including the construction of a closed
refrigeration test loop was carried out by the Centre to produce a preprototype
version. This ran for over 400 hours, without failure, at adiabatic and
volumetric efficiencies superior to those of
commercially available vane and
reciprocating types of compressor.