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Outboard motor fuel supply system

  • US 5,913,294 A
  • Filed: 11/25/1996
  • Issued: 06/22/1999
  • Est. Priority Date: 11/24/1995
  • Status: Expired due to Term
First Claim
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1. An outboard motor for a watercraft, the motor comprising a power head having an internal combustion engine, a delivery fuel tank, which contains fuel for operation of the engine carried by the outboard motor, a low-pressure fuel pump adapted to communicate with an external fuel supply tank and in fluid communication with the delivery fuel tank to deliver fuel from the external supply tank to the delivery fuel tank, the low-pressure fuel pump being selectively operable so as to maintain a fuel level generally lower than a first predetermined level of fuel within the delivery fuel tank, a high-pressure fuel pump in fluid communication with the delivery fuel tank that pumps fuel from the delivery tank to the engine, the high-pressure pump being selectively operable so the fuel level does not drop generally below a second predetermined level of fuel within the delivery fuel tank, the low-pressure fuel pump and high-pressure fuel pump being independently operable.

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