THROTTLE RATE-OF-FLOW INDICATOR

FIELD: physics; measuring. ^ SUBSTANCE: invention concerns to field of diagnostics of a technical state and trial as petrol IC-engines in systems with a forced ventilation of casing (4-6 l/mines), and diesel IC-engines of major power (more than 180 kw) building, road, municipal cars. The rate-of-flow indicator contains the cone-shaped adapter-tip attached to the metal case in which cover is built in rotameter and the gas cock with an adapter. In a case wall the through throttle hole of rectangular section is executed. In the case with possibility of change of the area of a through throttle hole the rotary ring related to a movable arm with a gash, from above restricted to a ring is erected. On the case the rotary ring, with possibility of interaction with a clamping ring of an iris diaphragm, supported by a basic ring and disposed in the case, and fixing possibility in each standing by means of a holdfast containing a blob, a spring and clamping the screw, and also scales are located. Rotameter, the containing blob, is joined with the IC-engine crankcase by means of a metal tube. The invention provides pinch of accuracy and expansion of a gamut of measuring crankcase gases at simultaneous decrease in labour input of diagnosing. ^ EFFECT: increase of accuracy and expansion of range of measuring crankcase gases at simultaneous decrease in labour input of diagnosing. ^ 5 dwg