METHOD AND DEVICE FOR RUNNING-IN INTERNAL COMBUSTION ENGINE Russian patent published in 1997 - IPC

FIELD: manufacture of engines. SUBSTANCE: method involves cold treatment at idling followed by setting the fuel feed member in position of 80% of maximum magnitude; after acceleration of engine to rotational speed corresponding to maximum torque, loading is effected in such way that increment of rotational speed of engine shaft relative to preset value (n_Mmax) caused by running-in of mating parts of engine is compensated of. Device for realization of the proposed method contains engine to be run-in and loading device consisting of induction electric motor connected with engine and liquid rheostat connected with actuating loading mechanism, speed sensor mounted on shaft between internal combustion engine and electric motor, speed and current comparison units; first input is connected with speed sensor and outputs are connected with actuating loading mechanism; second input is connected with induction electric motor and outputs are connected with liquid rheostat and actuating speed mechanism. EFFECT: enhanced reliability. 3 cl, 2 dwg