Closed end fuel injection system

Abstract From the Canadian patent

A marine fuel supply system for a fuel injected engine deadheads a high pressure fuel line with a closed-end connection to the fuel injectors without a recirculating return fuel line to the fuel injection pump and without a return fuel line to the remote fuel tank. A differential pressure transducer senses differential pressure across the fuel injector between the high pressure fuel line and the low pressure induction manifold and turns off the fuel pump above a first value of relative differential pressure and turns on fuel pump at a second value below the first value, to maintain the fuel pressure in the high pressure line within a given range relative to induction manifold pressure.