| 摘要 |
<p>PURPOSE: A fuel emission quantity measuring device for LNG(liquefied natural gas) fuel tank is provided to accurately measure the emission quantity of LNG fuel, exhausted to atmosphere, by using the voltage which occurs when piston approaches to a coil. CONSTITUTION: A fuel emission quantity measuring device for LNG(liquefied natural gas) fuel tank comprises an LNG fuel tank, a relief valve unit(200), and a valve sensing unit(300). The LNG fuel tank stores the LNG fuel as liquid. A BOG(Boil of Gas) exhaust port is formed in one side of the LNG fuel tank. The relief valve unit is installed in the BOG exhaust port of the LNG fuel tank. The relief valve unit is operated according to the pressure of the LNG fuel vaporized in the LNG fuel tank part. The relief valve unit discharges the vaporized LNG fuel to the atmosphere from the LNG fuel tank. The valve sensing unit is electrically connected to the relief valve unit and detects the operation of the relief valve unit.</p> |
