STIRLING CYCLE ENGINE AND REFRIGERATION SYSTEMS
A Stirling cycle heat engine is described in which displacer motion is controlled as a function of the working fluid pressure and a substantially constant pressure. The heat engine includes an auxiliary chamber at the constant pressure, and an end surface of a displacer piston is disposed in the auxiliary chamber. During the compression portion of the engine cycle when the fluid pressure rises above the constant pressure, the displacer forces the working fluid to pass from the cold chamber to the hot chamber of the engine. During the expansion portion of the engine cycle the heated working fluid in the hot chamber does work by pushing down on the engine's drive piston. As the working fluid pressure drops below the constant pressure, the displacer forces most of the working fluid in the hot chamber to pass through the regenerator to the cold chamber. The engine is easily combinable with a refrigeration section to provide a refrigeration system in which the engine's single drive piston serves both the engine and the refrigeration section.
- Government-owned invention available for licensing. Copy of application available NTIS.
National Aeronautics and Space Administration400 Maryland Avenue, SW
Washington, DC United States 20546
- Higa, W H
- Publication Date: 1975-5
- Pagination: 23 p.
- TRT Terms: Combustion chambers; Economic efficiency; Energy conversion; Engines; Heat engines; Machines; Patent applications; Piston engines; Pistons (Engines); Pressure; Refrigeration; Stirling engines; Working fluids
- Uncontrolled Terms: Efficiency; Pressure distribution
- Old TRIS Terms: Fluid power; Prime movers; Stirling cycle
- Subject Areas: Economics; Energy; Railroads; Vehicles and Equipment;
- Accession Number: 00091814
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: PAT-APPL-574208
- Contract Numbers: NAS7-100
- Files: TRIS
- Created Date: Sep 10 2002 12:00AM