Ivory system for vapour recovery
AssigneeDover Fueling Solutions UK Limited
InventorGustaf Gustafsson
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Abstract
The invention relates to a method for controlling a linear pump of a vapour recovery system in a fuel dispensing unit. The linear pump is flow controlled by a signal. The method comprises applying a known voltage to a solenoid coil of the linear pump for a predetermined time period, measuring a current consumption of the solenoid coil during the predetermined time period, and adjusting the signal based on the measured current consumption. The invention also relates to a vapour recovery system for recovering vapour from a motor vehicle tank via a fuel dispensing nozzle to a vapour tank.
Claims19
A vapour recovery system for recovering vapour from a motor vehicle tank via a fuel dispensing nozzle to a vapour tank, comprising:
- a linear pump configured to pump vapour from the motor vehicle tank to the vapour tank, the linear pump being flow controlled by a signal applied to a solenoid coil;
- and
- a control unit configured to adjust the signal based on a measured current consumption of the solenoid coil.
A vapour recovery system, comprising:
- a linear pump configured to pump vapour from a motor vehicle tank to a vapour tank, the linear pump including a solenoid coil, the linear pump housed within a fuel dispensing unit;
- and
- a control unit configured to monitor a signal that flow-controls the linear pump and that is applied to a solenoid coil, to obtain a current consumption curve based on the signal and during an operation of the fuel dispensing unit, to measure a consumption of current by the solenoid coil for a predetermined time period, the predetermined time period determined from the current consumption curve, and to adjust the signal applied to the solenoid coil based on the measured consumption of current.
Dependencies are inferred from the claim text.