DEVICE FOR FLOW MEASUREMENT OF FLUID MEDIUM Russian patent published in 2018 - IPC G01F1/22 

FIELD: measuring equipment.

SUBSTANCE: invention relates to devices for measuring the flow rate of liquid media, in particular when diagnosing hydraulic drives, hydraulic systems and hydraulic units of mobile and stationary machines for various purposes. Device can be used as a load device or as a flowmeter in devices for diagnosing hydraulic systems of construction, road, agricultural, logging machines, transport construction machines and other mobile and stationary machines, as well as for input control of hydraulic units in factories, maintenance stations, workshops, etc. Device comprises a body with through axial and radial holes, a sleeve with throttling slots with a spool placed in it and a positioning device. Sleeve is made with an internal partition and an axial hole in it. Partition divides the aperture of the sleeve on the spool chamber and the cavity, with the positioning device positioned in it, that includes a stem with a thread, a fixed dial with a main scale for selecting the measuring range of the flow rate, a rotary dial with a vernier scale, that is rigidly connected to the stem. Immobile limb is rigidly fixed to the body, and the swivel limb spans a fixed one and can rotate and linearly move together with the stem. Spool is mounted in a spool chamber and is pivotally connected to the stem and is equipped with a channel connecting the over-spool and under-spool chambers.

EFFECT: creation of a hydrotester that is compact, simple, reliable and accurate, used in the diagnosis of hydraulic systems of mobile equipment, both in the conditions of stationary workshops and in the field.

8 cl, 2 dwg