GAS SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: system has carburetor, vessel filled with liquified gas, gas pipe line, gas evaporator provided with the inlet solenoid valve, first solenoid nozzle positioned at the outlet of the pipe line, differential gas pressure pickup interposed between the gas space of the receiver and outlet of the solenoid nozzle and electrically connected with the inlet solenoid valve, differential air pressure counters interposed between the air space at the inlet of the carburetor and zone of minimal cross-section of each diffuser, and electronic control unit connected with the pickup of speed of rotation of the engine shaft and made up as two integrators, amplifier-converter, differentiator, adder, and converter. The first input of each integrator is connected with one of the differential pickups of air pressure, the second input of each integrator is connected with the pickup of speed of rotation of the engine. The outlets of the integrators are connected with the first and second inlets of the amplifier- converter respectively. The output of the amplifier- converter is connected to the first input of the adder and to the second outputs of the adders through the differentiator. The output of the adder is connected with the pickup of speed of rotation of the engine. The output of the converter is connected with the solenoid nozzle. The system has the second solenoid nozzle which is parallel to the first one and connected with the second output of the converter. The control electronic unit has two comparators, governor of speed of rotation, and governor of reference signal. The governor of the speed of rotation is connected with the first input of the first comparator whose second input is connected with the pickup of speed of rotation and output with the third input of the converter. The first inlet of the second comparator is connected with the output of the differentiator, second input is connected with the governor of the reference signal, and the output with the fourth input of the converter. EFFECT: enhanced reliability. 1 dwg