Philips went on to develop experimental Stirling engines for a wide variety of applications and continued to work in the field until the late 1970s, but only achieved any commercial success with the 'reversed Stirling engine' cryocooler. They did however take out a large number of patents and amass a wealth of information relating to Stirling engine technology which was subsequently licensed to other companies forming the basis of much of the development work in the modern era.
Stirling Engine Free-
What appears to be the first mention of a Stirling cycle machine using freely moving
components is a British patent disclosure in 1876 . This machine was envisaged
as a refrigerator (i.e., the so-