| 摘要 |
<p>The fueling facility automatically maintains pressure on the liquid methane within a predetermined safe operating range using methane gas trapped in the cryogenic storage tank (102). A pump (131) is cooled by placing it in the storage tank and circulating liquid methane through the pump and back into the storage tank. A dispenser, including a nozzle (162) for connecting to a motor vehicle, is cooled by circulating liquid through the nozzle and back to the storage tank through a receptacle on the dispenser to which the nozzle is connected. No dispensing of liquid methane into a motor vehicle tank is allowed to begin without the pressure of the liquid methane being within the operating range and the pump and nozzle precooled.</p> |
