Outboard motor with forward air intake and air-cooled fuel pump
AssigneeYamaha Marine Kabushiki Kaisha
InventorKatsumi Ochiai
Life of this patent
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Abstract
An outboard motor can comprise a cowling for covering an engine, a high pressure fuel supply system, and a low pressure fuel supply system. The high pressure fuel supply system can have a vapor separator tank and a high pressure fuel pump. The low pressure fuel supply system can have a low pressure fuel pump. A heat insulating chamber, defined from a space for accommodating the engine, can be formed within the cowling. The heat insulating chamber houses the low pressure fuel pump and the fuel filter.
Claims14
An outboard motor comprising, an engine, a cowling defining a space accommodating the engine within the outboard motor, the cowling comprising a lower cowling defining an upper opening and an upper cowling, the upper cowling configured to be detachable from the upper opening of the lower cowling,
- a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump,
- a low pressure fuel supply system having a low pressure fuel pump disposed apart from the engine and forward from the engine, and a heat insulating chamber casing, wherein the high and low pressure fuel supply systems are disposed within the cowling,
- wherein the heat insulating chamber casing is defined in the space accommodating the engine, within the cowling, the lower cowling supporting the low pressure fuel pump through the heat insulating chamber casing, and wherein the heat insulating chamber casing houses parts of the low pressure fuel supply system.
An outboard motor comprising, an engine, a cowling defining a space accommodating the engine within the outboard motor, the cowling comprising a lower cowling defining an upper opening and an upper cowling detachably connectable to the upper opening, a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump,
- a low pressure fuel supply system having a low pressure fuel pump disposed apart from the engine and forward from the engine, the low pressure fuel pump being disposed in a heat insulating casing, and means for supporting the low pressure fuel pump and heat insulating casing with the lower cowling.
An outboard motor comprising, an engine, a cowling comprising a lower cowling defining an upper opening and an upper cowling being detachable from the upper opening, the cowling, with the upper cowling attached to the upper opening, defining a space accommodating the engine within the outboard motor and having a first opening configured to guide atmospheric air in to the space, a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump, a low pressure fuel supply system having a low pressure fuel pump, and a heat insulating chamber casing, wherein the high and low pressure fuel supply systems are disposed within the cowling, wherein the heat insulating chamber is defined in the space accommodating the engine, within the cowling, wherein the heat insulating chamber houses at least the low pressure fuel pump, the cowling including a second opening configured to guide atmospheric air into the heat insulating chamber, and wherein the low pressure fuel pump is supported by the lower cowling with the heat insulating chamber casing.
An outboard motor comprising an engine,
- a cowling defining a space accommodating the engine within the outboard motor, the cowling comprising a lower cowling defining an upper opening and an upper cowling, the upper cowling configured to be detachable from the upper opening of the lower cowling,
- a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump, a low pressure fuel supply system having a low pressure fuel pump and a fuel filter disposed apart from the engine and forward from the engine, and a heat insulating chamber including a casing,
- wherein the high and low pressure fuel supply systems are disposed within the cowling, wherein the heat insulating chamber casing is defined in the space accommodating the engine, within the cowling, the lower cowling supporting the fuel filter through the heat insulating chamber casing, and
- wherein the heat insulating chamber casing houses parts of the low pressure fuel supply system.
An outboard motor comprising, an engine, a cowling defining a space accommodating the engine within the outboard motor, the cowling comprising a lower cowling defining an upper opening and an upper cowling detachably connectable to the upper opening, a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump, a low pressure fuel supply system having a fuel filter disposed apart from the engine and forward from the engine, the fuel filter being disposed in a heat insulating casing, and means for supporting the fuel filter and heat insulating casing with the lower cowling.
An outboard motor comprising an engine, a cowling comprising a lower cowling defining an upper opening and an upper cowling being detachable from the upper opening, the cowling, with the upper cowling attached to the upper opening, defining a space accommodating the engine within the outboard motor and having a first opening configured to guide atmospheric air in to the space, a high pressure fuel supply system having a vapor separator tank and a high pressure fuel pump, a low pressure fuel supply system having a fuel filter, and a heat insulating chamber casing, wherein the high and low pressure fuel supply systems are disposed within the cowling, wherein the heat insulating chamber is defined in the space accommodating the engine, within the cowling, wherein the heat insulating chamber houses at least the fuel filter, the cowling including a second opening configured to guide atmospheric air into the heat insulating chamber, and wherein the fuel filter is supported by the lower cowling with the heat insulating chamber casing.
Dependencies are inferred from the claim text.