Fuel supplying apparatus
AssigneeTokico Ltd.
InventorShigemi Komukai
Life of this patent
Estimating the term…
Abstract
A fuel supplying apparatus comprises a switch for driving a pump in response to moving of a fuel supplying nozzle from a waiting position, a circuit for driving the pump and carrying out a fuel supplying operation until a desired quantity or price of fuel is reached, a circuit for driving the pump for a predetermined short time after completion of the fuel supplying operation, and a circuit for comparing a measured flow rate which is measured in the flowmeter and a predetermined flow rate when the pump is driven for the predetermined short time, and for prohibiting the pump from being driven in a subsequent fuel supplying operation when the measured flow rate is greater than the predetermined flow rate, even when the switch operates.
Claims16
A fuel supplying apparatus comprising:
- a fuel supplying nozzle located at a tip end of a fuel supplying hose, said fuel supplying nozzle being positioned at a waiting position when not performing a fuel supplying operation;
- a pump for supplying fuel to said fuel supplying hose;
- a flowmeter for measuring a flow rate of the fuel which is supplied by said pump;
- switch means for driving said pump in response to moving of said fuel supplying nozzle from said waiting position;
- fuel supplying means for driving said pump and carrying out a fuel supplying operation until a desired quantity or price of fuel is supplied;
- short duration pump driving means for driving said pump for a predetermined short time after completion of the fuel supplying operation in which the desired quantity or price of fuel is supplied;
- and
- safety check means for comparing a measured flow rate which is measured in said flowmeter and a predetermined flow rate when said pump is driven for said predetermined short time, and for prohibiting said pump from being driven in a subsequent fuel supplying operation when said measured flow rate is greater than said predetermined flow rate, even when said switch means operates.
A fuel supplying apparatus comprising:
- a fuel supplying nozzle located at a tip end of a fuel supplying hose, said fuel supplying nozzle being positioned at a waiting position when not performing fuel supplying operation;
- elevator means for raising and lowering said fuel supplying nozzle between said waiting position and a fuel supplying position suited for performing the fuel supplying operation;
- a pump for supplying fuel to said fuel supporting hose;
- a flowmeter for measuring a flow rate of the fuel which is supplied by said pump;
- switch means for driving said pump in response to moving of said fuel supplying nozzle from said waiting position;
- fuel supplying means for driving said pump and carrying out a fuel supplying operation until a desired quantity or price of fuel is supplied;
- short duration pump driving means for driving said pump for a predetermined short time after completion of the fuel supplying operation in which the desired quantity or price of fuel is supplied;
- safety check means for comparing a measured flow rate which is measured in said flowmeter and a predetermined flow rate when said pump is driven for said predetermined short time and for prohibiting said pump from being driven in a subsequent fuel supplying operation when said measured flow rate is greater than said predetermined flow rate, even when said switch means operates;
- and
- means for prohibiting said elevator means from being operated when said pump is driven for said predetermined short time and the flow rate measured in said flowmeter is greater than said predetermined flow rate.
Dependencies are inferred from the claim text.