Alf James Rudolf Lysholm (14 December 1893 – 20 February 1973) was a Swedish engineer.
Career
Lysholm worked for the Ljungstrom steam turbine company, where he rose to become Chief Engineer.Meher-Homji, Cyrus B. (2000). "The Historical Development of Turbomachinery". Proceedings of the 29th Turbomachinery Symposium, Texas A&M University, 2000. pp. 281-321.
He is noted for the invention of the rotary screw compressor, which he developed in the 1930s while working on a series of unsuccessful gas turbine engines.
He also developed the hydraulic torque converter. and the STAL Dovern turbojet engine.https://ingeniumcanada.org/channel/articles/a-tale-of-two-engines-or-four-or-even-six-the-stal-skuten-dovern-and-glan
References
External links Swedish Wikipedia article "Alf Lysholm", Motoring Weekly.