Fuel conduction system
First Claim
1. A fuel conduction system for conducting fuel between a fuel source and a pump having an inlet, a main outlet and a pressure regulation return outlet, the fuel conduction system comprising:
- a supply line extending in a longitudinal direction from a pump connecting end arranged to be connected to the inlet of the pump to a source connecting end arranged to be connected to the fuel source; and
a return line extending substantially concentrically through the supply line in the longitudinal direction of the supply line from a pump connecting end adjacent the pump connecting end of the supply line and arranged to be connected to the pressure regulation return outlet to a source connecting end adjacent the source connecting end of the supply line arranged to be connected to the fuel source.
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Accused Products
Abstract
A fuel conduction system is provided for conducting fuel between a fuel source and a fuel consuming device which are either integrated as a single unit or apart as separate units. The system generally comprises concentric supply and return tubes for connection between the fuel source and the pump of a consuming device. A valve is positioned in series with the supply line which prevents siphoning of the contents of the supply line if it is damaged. Anti-siphoning and flashback arrest measures are also provided on the return line. In one embodiment, the fuel conduction system may be used on a portable fuel storage devices for refueling various consuming devices. In another embodiment, the fuel conduction system may be used on a fuel consuming device, between the pump and fuel storage container thereon, so that the fuel storage container may be selectively separated from the device in a safe manner.
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Citations
23 Claims
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1. A fuel conduction system for conducting fuel between a fuel source and a pump having an inlet, a main outlet and a pressure regulation return outlet, the fuel conduction system comprising:
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a supply line extending in a longitudinal direction from a pump connecting end arranged to be connected to the inlet of the pump to a source connecting end arranged to be connected to the fuel source; and
a return line extending substantially concentrically through the supply line in the longitudinal direction of the supply line from a pump connecting end adjacent the pump connecting end of the supply line and arranged to be connected to the pressure regulation return outlet to a source connecting end adjacent the source connecting end of the supply line arranged to be connected to the fuel source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23)
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12. A fuel conduction system in combination with a fuel consuming device, the system comprising;
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a fuel source;
a pump having an inlet, a main outlet and a pressure regulation return outlet;
a supply line extending in a longitudinal direction from a source connecting end coupled to the fuel source to a pump connecting end coupled to the inlet of the pump;
a return line extending substantially concentrically through the supply line in the longitudinal direction of the supply line from a source connecting end coupled to the fuel source to a pump connecting end coupled to the pressure regulation return outlet of the pump; and
an outlet line coupled between the main outlet of the pump and the fuel consuming device.
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19. A portable fuel source for supplying fuel to a fuel consuming device having a pump including an inlet, a main outlet and a pressure regulation return outlet, the portable fuel source comprising:
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a fuel storage container supported for rolling movement across the ground;
a supply line arranged to be coupled between the container and the inlet of the pump;
a return line arranged to be coupled between the container and the pressure regulation return outlet of the pump; and
a valve mounted integrally on the container and being arranged to be coupled in series with the supply line, the valve including a valve member which is biased towards a closed position, the valve member being arranged to be opened in response to a reduction in pressure in the supply line associated with activation of the pump.
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Specification