JET ACTIVE OSCILLATOR AND OSCILLATORY FLOW-MEASURING APPARATUS ON ITS BASIS Russian patent published in 2006 - IPC G01F1/20 F15C1/22 

FIELD: the invention refers to measuring technique .

SUBSTANCE: the jet active oscillator has a body with a lid. In the body there is a rectilinear input sector, a convergent tube, a feeding nozzle, a control chamber in the shape of a triple-stage diffuser formed with the help of the inner walls of the two guides and an output channel. Along the both sides of the channel there are two separators in the shape of projectiles forming a nozzle and a diffuser of the output channel with their inner walls. The exterior walls of the separators form together with the opposite interior walls of the guides input nozzles and diffusers of the first and the second input channels serving for joining with the lines of feedback, formed with the channels in the body or in the additional flanges. In the initial part of the inner walls of the guides two control nozzles are fulfilled. Each control nozzle has a convergent tube. The angle of inclination of the flatness of symmetry of each control nozzle to the flatness of symmetry of the body is chosen in the diapason 95-50 degrees. In a multistage circuit of the oscillatory flow-measuring apparatus the jet active oscillators are joined with input sectors and output channels and their control chambers are connected between themselves with the lines of feedback on different schemes depending from odd and even quantity of the active oscillators.

EFFECT: provides increasing reliability and accuracy of measuring in the diapason of the large volume expenditures.

16 cl, 8 dwg