DIAGNOSTICS METHOD OF GAS DISTRIBUTING MECHANISM OF INTERNAL COMBUSTION ENGINE, AND DEVICE FOR METHOD'S IMPLEMENTATION Russian patent published in 2013 - IPC G01M15/04 

FIELD: engines and pumps.

SUBSTANCE: diagnostics method of a gas distributing mechanism of an internal combustion engine consists in measurement of an angular movement of a crankshaft of the engine till the moment of opening of an inlet valve of the first support cylinder till the moment of the shaft position corresponding to upper dead point of a piston of the support cylinder. Measurement of angular movement of the crankshaft is carried out by means of an angular movement sensor converting an angular movement of the shaft to electric signals transmitted through a selection unit and a commutator to a digital counter. The valve opening moment and the shaft position corresponding to upper dead point of the cylinder piston are determined by means of sensors, the electric signals of which are also supplied to the selection unit and the commutator controlling the beginning and the end of measurement of angular movement of the crankshaft. As per readings of the counter, a digital value of turning angle of the crankshaft is determined, and by comparing that value to the digital value of the requirement of the design documentation for the gas distributing mechanism, its state is determined. Device for the method's implementation has been described.

EFFECT: higher measurement accuracy.

4 cl, 1 dwg