INLET GUIDE VANE OF TJE AXIAL COMPRESSOR FOR A FLOW THAT IS UNEVEN ALONG THE RADIUS OF THE CHANNEL AT ITS INLET Russian patent published in 2023 - IPC F04D29/24 

FIELD: aviation technology.

SUBSTANCE: invention relates to the inlet devices of the compressors of turbojet engines (TJE) of aircraft and can be used as a guide vane for gas or liquid flows in other industries. The inlet guide vane of the TJE axial compressor stage for non-uniform flow at its inlet comprises blades movable relative to the axis of rotation, divided into separate sections according to the number of characteristic annular zones that make up the radial non-uniformity of the oncoming flow. Separate sections are made with a feather swirl depending on the variable component of the axial flow velocity along the channel radius at the inlet to each section and are installed coaxially telescopically by means of tails. In combination with an autonomous system for adjusting the angle of position of the blades of the same moving sections of the guide vanes, depending on the average axial flow velocity attributable to these sections, the inlet guide vane of the stage of the axial compressor of the TJE, in conditions of uneven flow at its inlet, provides an effective angle of flow in each section of the impeller blade during its relative movement along the circumference of rotation.

EFFECT: efficiency of the compressor under conditions of uneven oncoming flow with a given diagram of axial velocities at the inlet to the inlet guide vane along the channel radius.

1 cl, 5 dwg