ROTATIONAL MACHINE Russian patent published in 2019 - IPC F01D11/04 F02K7/16 F02K7/18 F02K9/48 

FIELD: machine building.

SUBSTANCE: proposed is a rotational machine such as a turbocompressor having a fluid recovery system for recovering leaked working fluid, such as gaseous helium in a helium circuit which has leaked past a shaft seal, a purifier being provided for removing contaminants from the working fluid, at that turbocompressor may have one fluid such as helium or hydrogen working through one turbo component such as a turbine thereof, and a second working fluid such as air or helium working through a second turbo component such as a compressor thereof, wherein the rotational machine being installable in an engine of a flying machine. Helium circuit comprises a working fluid (helium) in a closed loop circuit, thus, a top-up supply tank may be omitted from the circuit. Top-up supply tank may be provided but the quantity of make-up fluid (gaseous helium) can be minimised.

EFFECT: working fluid (such as helium) need not be consumed or consumed so quickly during use of the machine.

26 cl, 6 dwg