Abstract: There is provided a magneto-hydrodynamic generator which utilizes pulsating combustion. The generator has a central combustion chamber and a radial expansion chamber annularly surrounding the combustion chamber and communicating with it. The expansion chamber is defined between two opposing walls. A combustible fuel mixture is introduced into the combustion chamber and pulsating combustion is initiated in the combustion chamber, so that gas flow in the expansion chamber fluctuates with time. Means are provided for ionizing gas in the expansion chamber, and further means are provided for applying an external magnetic field to the expansion chamber. Finally, electrically conductive means are provided for extracting electrical power from the ionized fluctuating gas flow in the expansion chamber.