REACTION TURBINE Russian patent published in 2015 - IPC F01D1/34 

FIELD: machine building.

SUBSTANCE: reaction turbine comprises a turbine shaft and nozzle assembly units. The nozzle assembly units are set behind each other in axial direction and are fitted by an injection hole. Every nozzle unit comprises plates coupled to each other, and the injection hole is formed on the superposed surface of the plates. The nozzle assembly unit is located in a casing comprising inlet and outlet holes and a throughput channel connecting them. The nozzle assembly unit is installed in the casing's throughput channel and can rotate, the said channel in the casing and the injection hole of the nozzle assembly units are set alternately. The casing comprises the first housing with the inlet hole, the second housing with the outlet hole and a variety of third housings set along the axial direction between the first and the second housings. Spacing plates are installed between the adjacent housings and separate assembly units of nozzles from each other. One version of the turbine implies that a variety of impact walls is formed on the inner circle of the third housing. Another version implies that the nozzle assembly unit comprises a ring element mounted between the plates and forming an injection chamber which is fitted by the injection hole passing through the outer circle of the injection chamber. One more version implies that the cross section area of the injection hole in the nozzle assembly unit provided on the side of the outlet hole in the housing, is greater than that of the nozzle assembly unit provided on the side of the inlet hole in the housing. The next version implies that the number of injection holes in the nozzle assembly unit provided on the side of the outlet hole in the housing, is greater than that in the nozzle assembly unit provided on the side of the inlet hole in the housing. The other version implies that the inlet hole in the housing is formed in the centre of the nozzle assembly unit rotation, and the outlet hole in the housing is located where the outer circle of the nozzle assembly unit is located. Every nozzle assembly unit comprises the above ring element forming the injection chamber and comprising injection walls, each of which is fitted by an injection hole in it, and a supporting wall connecting the injection walls.

EFFECT: group of inventions allows for simplified assembly of a reaction turbine and for the reduction of its dimensions.

31 cl, 21 dwg