| 摘要 |
PURPOSE: A residual fuel amount measuring device for a domestic heating oil-boiler is provided to precisely and conveniently check the residual amount of fuel in a room by a liter unit by transmitting a signal of a detected residual amount to a display element via a wall socket of a power supply. CONSTITUTION: A residual fuel amount measuring device for a domestic heating oil-boiler includes a float(1) and a weight(2) for moving vertically in opposite directions to each other according to a fuel level in a fuel tank(7), and a roller and a rotation sensing plate to be engaged to each other to rotate in association with each other according to a motion of a plane belt(4) connected to the float and the weight, a control plate for receiving sine and cosine signals output from the rotation sensing plate for converting a current height of residual fuel to a data, and a display element for displaying the converted residual fuel amount digitally by a liter unit according to the data output from the control plate via a wall socket mounted in a room and connected to a power source.
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