Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1993-03-04
1994-12-27
Cross, E. Rollins
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123533, F02M 3704, F02M 2300
Patent
active
053755782
ABSTRACT:
A high pressure fuel/air injection system for an outboard motor having a V-cylinder arrangement wherein the major components of the air/fuel supply system are disposed in the valley between the cylinder banks. The system includes an vapor fuel separator that has a fuel chamber in which the supply of fuel is maintained by a float valve and an air chamber positioned above the fuel chamber and to one side of it and which communicates with the fuel chamber through a perforated member. A filter media fills the air chamber and an atmospheric air inlet is provided to the air chamber. Fuel pressure and fuel regulator valves are disposed in the area to the side of the air chamber and regulate fuel and air pressure by dumping fuel and air back to the fuel and air chambers, respectively, through integral internal conduits. The regulating system includes an arrangement for regulating the fuel pressure so that it will be at least greater than the air pressure by a predetermined amount and also for precluding the delivery of air under pressure if fuel under pressure is not supplied. The arrangement also incorporates a system for insuring that fuel cannot flow out of the atmospheric air inlet if the outboard motor is tilted up or is laid on its sides. An additional air supply is provided for the air compressor in the event the air chamber becomes clogged or inadequate to supply the air requirements for the system.
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Kato Naoki
Nishimura Seiichi
Cross E. Rollins
Moulis Thomas N.
Sanshin Kogyo Kabushiki Kaisha
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