To provide a small gas turbine which possesses high performance and low cost to replace a reciprocal engine as a generator for mobile industrial machine such as an automobile vehicle and which facilitate maintenance and starting thereof, with no vibration.

Compression blades 8 in one side and impulse blades 15 in other side are formed integrally and a blade wheel 2 is keyed to a shaft 1, the both end of which are supported by the bearings 3, 4. A partitioner 9 with a number of pierced holes 10 and plate spring 11, for closing these holes are pinched by the cases 5, 6. Several plugs 13 are provided in a combustion chamber 12. Guide blade 14 inside the case 6 and cooling fins 25, 26 outside the case are formed. On a support 17 keyed to the shaft an axial flow turbine 16 is secured. A flywheel 29 having impulse vanes 30 is keyed to the shaft. Guide blade 28 is disposed in a portion of a cover 27, and several exhaust part 31 are formed. A tank 18 with an air pump 23 is attached and the port 19 and 24 communicating to the combustion chamber 12 is closed by pushing with a spring 21 at the tapered part of a needle valve 20. When opening the needle valve with a ring 22 the turbine is started by using the pressurized gas in the tank.