Alf James Rudolf Lysholm (14 December 1893 – 20 February 1973) was a Swedish engineer.

Career

Lysholm worked for the Ljungstrom

steam turbine A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbin ...

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 A rotary-screw compressor is a type of gas compressor, such as an air compressor, that uses a rotary-type positive-displacement mechanism. These compressors are common in industrial applications and replace more traditional piston compressors w ...

, which he developed in the 1930s while working on a series of unsuccessful gas turbine engines. He also developed the hydraulic

torque converter A torque converter is a type of fluid coupling that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque converter connects the power ...

References

External links

* Swedish Wikipedia article
"Alf Lysholm"
''Motoring Weekly''. Swedish mechanical engineers 1893 births 1973 deaths {{Sweden-engineer-stub