Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1996-05-22
1999-01-05
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123509, F02M 4100
Patent
active
058551972
ABSTRACT:
A compact vapor separator for a fuel injection system reduces the size of the fuel system mounted on the side of an outboard engine. The girth of the outboard motor's power head consequently is decreased. In one embodiment, the vapor separator employs a plurality of rotary vane-type pumps. The pumps are sized to produce a sufficient flow rate and fuel pressure, while minimizing power consumption. At least one of the fuel pumps can be located on a periphery of a housing of the vapor separator and can be removably attached thereto to facilitate easy removal and assembly for service and repair. The vapor separator also can include a redundant seal arrangement to generally isolate an exterior casing of the fuel pump from the fuel and to seal an upper end of the housing. In another embodiment, a dividing wall separates the fuel pump from an fuel supply inlet of the fuel tank. The wall inhibits gas bubble migration toward the inlet of the fuel pump. The fuel pump thus draws less vapor.
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Carter Fuel Pumps and Fuel Pump Assemblies Catalogue #3879, 1994, Weatherly Index No. 604, p. 214.
Moulis Thomas N.
Sanshin Kogyo Kabushiki Kaisha
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