RESONANCE PISTON MACHINE Russian patent published in 2006 - IPC F02D35/00 F02D37/00 F02B75/00 

FIELD: mechanical engineering; piston machines.

SUBSTANCE: proposed resonance piston machine with crank-and-connecting rod mechanism has variable inertia moment flywheel, clutch, flyweights and leverage designed for stepless changing moment of inertia of vibratory system, shaft angular velocity sensor, ambient temperature transmitter, barometric pressure transmitter, clutch position sensor of variable inertia moment flywheel, microprocessor control system, unit to set clutch movement law of variable inertia moment flywheel. Microprocessor control system contains unit with mathematical model of operation of resonance piston machine, first comparator unit and second comparator unit. Output signals of shaft angular velocity sensor, ambient temperature transmitter, ambient barometric pressure transmitter, clutch position sensor of variable inertia moment flywheel are applied to inputs of unit with mathematical model of operation of resonance piston machine. Applied to first input of first comparator unit is calculated value of shaft angular velocity of piston machine corresponding to resonance mode of operation at measured values of ambient temperature and barometric pressure. Output signal of shaft angular velocity sensor is applied to second input of first comparator unit. Applied to first input of second comparator unit is calculated value of position of clutch of variable inertia moment flywheel corresponding to resonance mode of operation at measured values of ambient temperature and barometric pressure, and for resonance value of angular velocity of piston machine shaft, and to second input of second comparator unit, output signal of sensor of clutch position of variable inertia moment flywheel. Signals from outputs of first and second comparator units are supplied correspondingly to inputs of first and second actuating-and-regulating devices smoothly changing velocity of piston machine shaft and position of clutch of flywheel with variable moment of inertia to provide minimum irregularity factor of piston machine shaft rotation. When this condition is met, piston machine is set to resonance. Signal from output of microprocessor control system is applied to input of unit setting clutch movement law of flywheel with variable moment of inertia, and output signal from this unit is applied to input of second comparator unit.

EFFECT: provision of automatic maintenance of resonance mode of operation of piston machine.

2 cl, 9 dwg