Kjeld Hoejfeldt

About the Author

Kjeld Hoejfeldt is a Danish engineer and inventor renowned for his innovative approaches to mechanical design and DIY engineering projects. With a career spanning decades in precision manufacturing, he has dedicated himself to making complex machinery accessible to hobbyists and enthusiasts through practical, resource-limited methods. Hoejfeldt's passion for Stirling engines, those elegant heat engines that convert thermal energy into mechanical work without combustion, drives his work, emphasizing creativity over expensive tools. His writings demystify engineering principles, offering step-by-step guidance that empowers readers to build functional models at home. Through his contributions, Hoejfeldt inspires a new generation of makers to explore thermodynamics and mechanics with ingenuity and minimal equipment.