METHOD AND DEVICE FOR CONTROL OF FLUID PRESSURE AND/OR VOLUMETRIC FLOW RATE Russian patent published in 2013 - IPC G05D7/06 G01F1/00 

FIELD: electrical engineering.

SUBSTANCE: method and device for control of fluid pressure and/or volumetric flow rate in a pipeline (20) which comprises of at least one electric generator (35) capable to extract current energy from fluid current and its at least partial conversion into electric energy; the device is distinctive in that the generator has toroidal-shaped guide-path (115) for oxygen with installed magnet (120) capable to be put in motion by oxygen passing through the oxygen guide-path and to move along circular path inside the toroidal-shaped guide-path, at that the generator has a coil wound around cross-section of the oxygen guide-path. In addition there is a control device (65) to control volumetric flow rate and/or pressure of the fluid in the pipeline (20). The control device (65) has electric drive supplied by the generator (35). The device is made for a fluid pipeline transporting gaseous oxygen; it forms a part of emergency oxygen supply in pilot-controlled pilot vehicles.

EFFECT: creation of the method to control volumetric flow rate or pressure of fluid, which can be implemented by means of lightweight construction for multipurpose use with high accuracy.

18 cl, 1 dwg