Oregon inventor, Buck Henderson, claims to have refined both the Richard Clem and Jim Ray engines. From what we can tell, Henderson's system uses supersonic speeds of fluid dynamics along with cavitation to pull in zero point energy as the source of environmental energy that shows up in the system to run it. First applications will be semi truck or lorry engines.
By Sterling D. Allan
Pure Energy Systems News
According to Keelynet, back in the '70s, Richard Clem
"Developed a closed system engine that was purported to generate 350 HP and run itself. The engine weighed about 200 pounds and ran on cooking oil at temperatures of 300 F.
"It consisted of a cone mounted on a horizontal axis. The shaft which supported the cone was hollow and the cone had spiraling channels cut into it. These spiraling pathways wound around the cone terminating at the cone base in the form of nozzles (rimjets).
"When fluid was pumped into the hollow shaft at pressures ranging from 300-500 pounds per square inch, it moved into the closed spiraling channels of the cone and exited from the nozzles.