Abstract: A turbine engine has a axially elongated housing formed with a supercharging chamber and a plurality of angularly spaced combustion chambers having radially inwardly open intake sides. An intake is provided at the supercharging chamber and an outlet downstream of the combustion chambers. A shaft is rotatably supported in the housing at the axis and forms a passage extending axially between the supercharging chamber downstream of the intake and a location on the shaft level with the combustion-chamber intakes. A rotary-action fan rotationally fixed to the shaft in the supercharging chamber advances and compresses air from the intake on rotation of the shaft and this air can pass through the rotor passage into whichever chamber is angularly aligned with its downstream end.