Two stages: an efficient rotary compressor feeds a rotary expander: animations, laboratory data, working prototype was tested, designer seeks production funding. Black Sea Technical University, Turkey. In English, Turkish.

Very simple, strong, smooth, high speed: ball bearings in a rotor and stator.

Topics: high power Wankels. Engines: 3-4 rotor, 700hp 13B, 20B, 15A, 21A, 12A turbo, NSU, Russian Lada/Vaz, John Deere. Cars: drag Corolla, 700hp RX-7, Subaru, 13BT Miata (MX5), RX-7-SP, JC Cosmo, Presto, 20B RX-7, MX-03. Odd ideas, car electronics, books, magazines.

Trochilic Quad Cycle Engine: innovative hybrid oscillating rotary, low friction, dual vane/rotor/pistons, efficient trochilic (rotating) motion. Uses: internal combustion, high pressure gas, Stirling, pump.

About Archer TRICE engine, Netherlands firm ICCU is investing several million Euros in it for fixed, natural gas fueled, electric generators for 1,000 homes, steam gives heat for homes, to be ready in 9 months. [The Economist]

Qurbine rotary engine: high torque, acceleration, power density per volume and mass; low RPM, noise, pollution; no vibration, oil. Rentals available. Extensive media references. English, Français, Español. Quebec, Canada.

Firm developing engines, mechanically driven superchargers, air compressors, bypass ventilators, for sale. Samples, working prototypes available. Claims to be original world Wankel rotary piston Internet domain. English, Deutsch.

May be some sort of Ramelli/Wankel hybrid. Claims very high torque at low RPM, concurrent multi-fuel ability. From Texas.

Forum to discuss Advanced Engine Technologies, Inc., (AENG) and development of OX2 engine, a new internal combustion engine geometry.

Experts in Canada have come up with a different kind of engine called the Quasiturbine. It is as revolutionary a paradigm as the Wankel engine and the piston engine, and appears to overcome the limitations of both.