초록 ▼

The present invention relates to a fueling control device for a remote-control model to prevent fuel oil overflow and to stop fueling automatically by sensing fuel oil delivery pressure. The device has a check valve, a pump and a control device with an electronic control consisting of a DC power sup

The present invention relates to a fueling control device for a remote-control model to prevent fuel oil overflow and to stop fueling automatically by sensing fuel oil delivery pressure. The device has a check valve, a pump and a control device with an electronic control consisting of a DC power supply circuit, a voltage regulation circuit, a switch type voltage regulation circuit, a control key, a CPU, a differential current inspection circuit, a motor circuit, and a motor driven pump. The check valve is connected between the fuel oil tank and an air conduit connected to a muffler. The pump is connected between a fuel oil drum, and a fuel oil delivery tube for pumping fuel oil from the fuel oil drum into the fuel oil tank. When the fuel oil tank is filled, overflow fuel oil causes closure of the check valve to cause a sudden rise of fuel oil delivery pressure. The rising load on the motor is transmitted to the control device to cause the pump to stop running.

대표청구항 ▼

A fueling control device for a model having an engine with a carburetor and an exhaust, and a fuel oil tank with an air conduit and a fuel oil conduit, the device comprising: a check valve connected between a pressure port of the engine exhaust and the fuel oil tank air conduit, and a control device

A fueling control device for a model having an engine with a carburetor and an exhaust, and a fuel oil tank with an air conduit and a fuel oil conduit, the device comprising: a check valve connected between a pressure port of the engine exhaust and the fuel oil tank air conduit, and a control device connected between the fuel oil conduit of the fuel oil tank and a fuel oil supply, said control device comprising: a sensor controller and pump wherein a circuit of said sensor controller comprising a DC power supply circuit, a voltage regulation circuit, a switch type voltage regulation circuit, a control key, a CPU, a differential current inspection circuit, a motor circuit, and a motor connected to a pump connected to the fuel oil supply and to the fuel oil conduit, wherein: said switch type voltage regulation circuit adjusts voltage by means of an adjustable resistor so as to supply to the motor a variable voltage; said control key provides for key-in of a control signal to control operation of the motor; said differential current inspection circuit, has a current comparator circuit for detecting a loading current rise or drop of said motor; said motor circuit comprises a relay for changing the direction of motor running; whereby said control system has a first key S1 for fueling which when pushed causes the CPU to send a signal to enable the switch voltage regulation circuit and a signal to enable the pump motor for fueling by pumping fuel oil from the fuel oil supply to the fuel oil tank, said differential current inspection circuit monitoring an operating current, such that fuel reaching the check valve causes the check valve to close to cause rising of the pump motor load and load current, which is sensed by the differential current inspection circuit and sends a signal to the CPU to stop the motor running.