DEVICE TO ANALYSE CONTAMINATION OF MOTOR OIL OF INTERNAL COMBUSTION ENGINE BY DISPERSE PARTICLES Russian patent published in 2014 - IPC G01N15/02 

FIELD: measurement equipment.

SUBSTANCE: invention relates to the measurement equipment, may be used in motor, agricultural, aviation, oil processing and other industries, where it is necessary to perform efficient analysis of motor oil quality. The device to analyse contamination of motor oil of the internal combustion engine by disperse particles includes a laser as a source of probing radiation, a light divider (a semi-transparent mirror), a lens, a photodetector, an analog to digital converter, a computer, an ultrasonic generator and a radiator of ultrasonic oscillations. Also the device comprises a channel to control metal particles located at the bottom of the oil tray of the engine tray, and a channel to control burn particles located at the height of minimum oil level in the tray. At the same time each of channels comprises a photodetector, an amplifier, an analog to digital converter and a radiator of ultrasonic oscillations. Also the device comprises a digital to analog converter and a switchboard for serial switching of radiators of ultrasonic oscillations in control channels. At the same time all ultrasonic radiators are controlled via the digital to analog converter by the computer, in accordance with the mathematical model of oscillations of the particle surface from radiations and with parameters of temperature produced with the help of the temperature sensor, amplifier and analog to digital converter.

EFFECT: increased accuracy of measurement of burn and metal particles, higher information value of data for assessment of concentration of weighted metal and burn disperse particles in oil, in particular, makes it possible to control quality of operation of an engine, residual resource of oil operation until its replacement.

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