VELOCITY MEASUREMENT DEVICE OF PIPE FLUID MEDIUM Russian patent published in 2014 - IPC G01P5/00 

FIELD: instrumentation.

SUBSTANCE: invention relates to a velocity measurement device of pipe fluid medium. The velocity measurement device of pipe fluid medium includes a turbine and a hydrodynamic bearing containing movable hollow body (30), one end of which is blind and which is connected to blades (10.1, 10.2, 10.3), and shaft (32) fixed relative to the pipe, located in the hollow body and containing at least one first duct (320) called a lubricating oil inlet duct and at least one second duct (325) called a lubricating oil outlet duct. The first duct (320) and the second duct (325) form a section of a hydraulic circuit, which can provide simultaneous circulation of the lubricating oil between an outer side surface of shaft (32) and hollow body (30), as well as between end face (321) of the shaft and base (300) of hollow body (30) when the lubricating oil being supplied to the pipe is supplied under pressure to inlet duct(s) (320).

EFFECT: enlarging measurement range of velocities of fluid media and improving accuracy.

11 cl, 4 dwg