초록 ▼

Fuel dispensing apparatus having a high-flow valve downstream of the fuel delivery hose and a solenoid operated pilot valve for the high-flow valve and a solenoid operated low-flow valve upstream of the fuel delivery hose. Flexible tubes within the fuel delivery hose connect the pilot valve to the h

Fuel dispensing apparatus having a high-flow valve downstream of the fuel delivery hose and a solenoid operated pilot valve for the high-flow valve and a solenoid operated low-flow valve upstream of the fuel delivery hose. Flexible tubes within the fuel delivery hose connect the pilot valve to the high-flow valve and connect both pilot and low-flow valves for conducting fuel to downstream of the high-flow valve.

대표청구항 ▼

In a fuel dispensing apparatus having a fuel delivery line with a flexible fuel delivery hose and a manually operable nozzle at the downstream end of the hose for dispensing fuel, means for supplying fuel under pressure to the fuel delivery line, and a two stage valve system for the fuel delivery li

In a fuel dispensing apparatus having a fuel delivery line with a flexible fuel delivery hose and a manually operable nozzle at the downstream end of the hose for dispensing fuel, means for supplying fuel under pressure to the fuel delivery line, and a two stage valve system for the fuel delivery line selectively operable for preventing fuel flow and providing relatively high and low fuel flow rates through the fuel delivery line, the improvement wherein the two stage valve system comprises a first stage, fuel pressure operated valve in the fuel delivery line downstream of the fuel hose, the first stage valve being selectively operable by fuel pressure to fully closed and fully open positions thereof and in its open position providing said relatively high fuel flow rate, a pilot valve for the first stage valve having an inlet and an outlet and selectively operable to open and closed positions thereof for operating the first stage valve to its said open and closed positions respectively, a first fuel conduit which includes a first flexible conduit within the fuel hose, connecting the first stage valve to the pilot valve inlet, a second stage valve having an inlet connected to the fuel delivery line upstream of the first stage valve and an outlet and selectively operable to open and closed positions thereof and in its open position being capable of providing said relatively low fuel flow rate, and a second fuel conduit which includes a second flexible conduit within the hose, connecting the outlets of the second stage valve and pilot valve for deliverying fuel therefrom to downstream of said first stage valve.