ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,223, issued on July 8, was assigned to EnergyIntel Services Ltd. (Nicosia, Cyprus).
"Alpha stirling engine" was invented by Martin Nilsson (Gothenburg, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "An alpha type Stirling engine is provided and comprises an expansion cylinder and a compression cylinder. The Stirling engine further comprises a regenerator, a cooler, a heater, and a gas channel which provides the expansion cylinder in fluid communication with the compression cylinder. At least one of the expansion cylinder and the compression cylinder has a twin cylinder which functions as an additional expansion cylinder or an additional compre...