| 摘要 |
<p>A vapour recovery system includes a vapour monitor (66) comprising a solid state anemometer (80) positioned in the vapour return line to calculate the volume of vapour returning in a vapour return line (34). The anemometer (80) is connected to a control system (50) which compares the volume of returning vapour to the volume of fuel being dispensed and adjusts the speed at which vapour is recovered to a desired value. The anemometer (80) may be a Wheatstone bridge arrangement (82) or a pair of thermometers.</p> |
