Bela Karlovitz was a Hungarian physicist who pioneered research into the generation of electricity directly from a body of hot moving gas without any mechanical moving parts. This process is known as magnetohydrodynamic generation or MHD generation for short.
In the mid 1930s, while in his native Hungary, Bela Karlovitz approached Siemens in Germany with a request to develop an MHD generator using combustion gases. Siemens referred him to Westinghouse in the USA. He arrived at the Westinghouse research facility in Pittsburgh, Pennsylvania with colleague Denes Halasz in 1938. [1] [2]
His work there resulted in the world's first patent for the MHD power process on August 13, 1940 (U.S. Patent No. 2,210,918, "Process for the Conversion of Energy"). [3]
He worked at Westinghouse until 1947 [4]
The Second World War interrupted development and a practical working device was not built until 1992 by others.