The Pressure Amplifier (PA) is definitely a game-changing technology.

The secret behind it is its vane blades. What might work for a conventional rotary vane compressor that has free moving graphite blades making the system air tight, and that uses lubrication to absorb any centrifugal forces, would not work for a Pressure Amplifier designed to run at high temperatures. Oil would crack at these temperatures.

To solve this problem of not using lubrication, two patented measures have been taken. One is to allow the vane blades to rotate inside a cam system so that any centrifugal force exerted by the vane blades is absorbed. Secondly, proper air sealing and reduction of friction is achieved by using sealing lips. Air sealing is only possible when physical contact is applied between the vanes blades and the stationary surfaces they rotate on. However, if sealing lips are allowed to flow freely on the stationary surfaces, they too, like the complete vane blade, would result in a major reduction of the mechanical efficiency.

Therefore, a counter weight system is applied which, like the sealing lips, is pulled by the centrifugal forces, but in the opposite direction. Sealing lips are, we might say, kept in force equilibrium, only touching the stationary surfaces they run on with a modest force which neither damages the un-lubricated surface nor causes high friction.