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Infinia Accomplishments

For more than twenty years, Infinia has developed unique hardware and technology based on its proprietary free-piston Stirling designs. Infinia engineers work closely with clients to develop systems ranging from power for deep-space missions to cryocoolers for research.

Infinia’s track record of innovation and experience includes:


  • 2005-2006 – Infinia delivers over 20 Stirling radioisotope generators
  • 2004 – Infinia demonstrates world’s first multi-cylinder free-piston Stirling engine
  • 2004 – Infinia reaches 10 year milestone in the on-going, maintenance-free test of their Infinia designed Stirling generator
  • 2004-2005 – Infinia develops a Diesel/Biodiesel fueled Combined Heat and Power system for the US Army’s Mobile Kitchen Trailer
  • 2002 – Infinia begins working with Lockheed Martin Aerospace, system integrator for the Stirling radioisotope Generator (SRG-110)
  • 2001 – Infinia develops an 8 kW pressure wave generator for American Superconductor
  • 2000 – Infinia demonstrates a 1 kWe Stirling generator operating on solar power at the National Renewable Energy Laboratory (NREL) Solar Furnace
  • 1999-2002 – Infinia develops a specialized 3 kWe Stirling generator for Pennsylvania State University’s Applied Research Laboratory
  • 1999-2001 – Infinia demonstrates a biomass-fueled Stirling generator for DOE
  • 1999-2001 – Infinia develops a 1 kWe Stirling generator for ENATEC’s Residential Combined Heat and Power system
  • 1997-1999 – Infinia develops active dynamic balancing to reduce vibration of Stirling space power convertors for NASA deep space probes
  • 1997 – Infinia develops a series of lightweight cryocoolers for Decade Optical Systems’ laser research
  • 1997-2002 – Infinia develops two-engine space power subsystem to demonstrate Free-Piston machine technology for NASA
  • 1995-1997 – Infinia pioneers dual-opposed operation of Stirling engines to limit vibration-induced pixel smear for NASA deep space probes
  • 1993-1995 – Infinia develops an integral Stirling Joule Thompson cryocooler for low temperature (4K) applications at NASA
  • 1991-1993 – Infinia develops a 10 W Stirling generator prototype for the Pacific Northwest National Laboratory
  • 1991-1994 – Infinia develops a hybrid solar/natural gas power system for the National Renewable Energy Laboratory (NREL)
  • 1991 – Infinia develops a low vibration pulse tube cryocooler for NASA spacecraft
  • 1990 – Infinia develops a CFC-free Stirling refrigeration system for DOE’s Dawnbreaker program to help save the ozone layer
  • 1989 – Infinia creates a low vibration Stirling cryocooler for NASA experiments
  • 1988 – Infinia develops a long-life, high reliability cryocooler capable of lifting 250 W at 77K to cool supercomputers for UT Carrier and IBM
  • 1986-1988 – Infinia designs a 25 kWe solar-electric Stirling power system for NASA and DOE to produce utility-scale power in solar dish "farms"
  • 1984 – Infinia founders provide concept and design support for Rockwell International SP-100 Stirling Engine Conversion System project to develop a free-piston Stirling engine for space exploration.
  • 1967-1992 – Infinia founders develop a Thermal Ventricular Assist System (Heart Assist Pump) for the National Institutes of Health



1991 Feature in Superconductor
Industry Magazine