| 摘要 |
The present invention relates to an oil-mixing preventing device for an oil feeder capable of preventing oil from being mixed with other types of oil by automatically closing a solenoid valve if an oil type that the oil feeder provides is different with an oil type of a vehicle by determining whether the oil type for the vehicle is diesel or gasoline after measuring the concentration of VOC gas in a vehicle fuel tank with a volatile organic compounds (VOC) sensor. The oil-mixing preventing device for the oil feeder according to the present invention includes: the VOC sensor installed in a nozzle of the oil feeder and sensing the volatile organic compounds inside the vehicle fuel tank of a vehicle to be refueled; a sensor power unit for supplying power to the VOC sensor; a signal detecting unit for detecting signals sensed by the VOC sensor; an oil-mixing prevention control unit supplying power to the VOC sensor through the sensor power unit when a nozzle hook of the oil feeder is opened for refueling, calculating the concentration of the volatile organic compounds detected by signal processing by receiving the signals that sense the volatile organic compounds inside the corresponding tank, and determining the oil type of the corresponding vehicle, and directing a solenoid valve controller to close the solenoid valve when oil-mixing is determined; and the solenoid valve controller closing the solenoid valve of an oil supply pipe according to the control of the oil-mixing prevention control unit. |
