METHOD AND DEVICE FOR SETTING ADVANCE ANGLE IN INTERNAL COMBUSTION ENGINE Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: output SH frequency (f) of generator 1 is changed depending on rotational speed of engine crankshaft 12; generator 1 is used to produce electric discharge which ignites combustible mixture in combustion chamber. Walls of cylinder, head and piston form cavity resonator 5 with varying natural frequency ranging from f_r.max to f_r.min which corresponds to maximum and minimum advance angles. Combustible mixture is ignited at the moment when f_r.= f_com.. Device for realization of this method has SHF generator 1, resonators 5 whose number is equal to number of cylinders N, variable capacitors 7 and 8 with capacitor plates, dischargers 9, circulator 3 with N+2 arms and matched load 4. EFFECT: enhanced efficiency. 3 cl, 2 dwg