There are lots of varieties of compressors such as Reciprocating Compressor, Axial-flow compressor, Rotary Screw Compressor, and many more available in the market, but this is the first time, such a compressor came into existence.
Invention of Oil-Free Compressor in the eighties in Germany by physicist Wolfhart Willimczik this revolutionary machine was banned. The water jacking system made it to the most powerful oil-free compressor so far, but sabotaged by the SSD/STASI/KGB and BLKA (the secret police from Bavaria)it is total unknown. This video is the only document that such a compressor existed. You will never see a picture or hear a single word about it in the media.
Most complete balance of all forces: Oscillating mass forces are not present. Both rotors revolve around the centers of gravity. The cylinder block is hydraulically balanced by funneling high pressure under the cylinders which are partially closed for this purpose. The drive shaft, piston plate, and pistons are one piece and are axially balanced by making the area content of the cross section of the drive shaft (on the shaft seal) equal to the sum of all active piston areas. The hydraulic forces on the pistons and on the drive shaft compensate each other in axial direction, because the pistons are pushing backwards. Total oil-free operation for pumps, compressors, water hydraulic motors etc. Friction is dramatically minimized that this rotary piston machine is able to run without any lubrication - even at high pressure, high volume and high speed. Largest range in volume and pressure: The Wolfhart Principle has no limitations in the possible range of volume and pressure. The product "volume times pressure" is the highest. There are principles for high volume and others for high pressure; this principle can both at the same time. A typical application may a water pump for 1000 GPM at 1000 PSI, where no other principle is suitable.