摘要:
A device is for separating water and contaminants from fuel that is being supplied from an upstream fuel reservoir to a downstream internal combustion engine. The device comprises a housing configured to couple with the upstream fuel reservoir, the housing having an inlet receiving fuel, water and contaminants, and an outlet discharging the fuel; a gravity separator disposed in the housing between the inlet and the outlet, the gravity separator separating the water from the fuel; and a filter disposed in the housing between the inlet and the outlet, the filter filtering the contaminants from the fuel.
摘要:
A fuel system for a marine propulsion device controls the pressure of liquid fuel within a fuel rail by altering the pump speed of a fuel pump. The fuel pressure in the rail is measured by a pressure transducer which provides an output signal to a microprocessor that allows the microprocessor to select an operating speed for the fuel pump that conforms to a desired fuel pressure in the rail. By decreasing or increasing the operating speed of the positive displacement fuel pump as a function of the measured pressure in the rail, the microprocessor can accurately regulate the fuel pressure.
摘要:
A marine engine fuel system provides a low pressure lift pump to draw fuel from a fuel tank and cause the fuel to flow into a reservoir and a high pressure fuel pump which draws fuel from the reservoir and provides it to a fuel rail. An inlet conduit of the high pressure fuel pump is provided with a primary and a secondary opening. The secondary opening can be an orifice formed through a wall of the inlet conduit. The secondary opening is positioned, relative to the primary opening, at a location which assists in controlling the fuel level within the reservoir and the quantity of gaseous fuel contained within an ullage above the liquid pool of fuel.
摘要:
A haptic throttle control mechanism includes a vibrating element that is connected in vibration transmitting relation with the control mechanism. The vibrating element can be a motor with an eccentric weight attached to its shaft or a piezoceramic component. The vibrating signal can be used to provide information to the operator of the marine vessel relating to the actual operating speed of the engine or, alternatively, it can be used to alert the operator of an alarm condition.
摘要:
A marine propulsion device is provided with a fuel filter that is connectable between a fuel tank and a fuel pump, wherein the fuel filter is disposed below an adapter plate of the marine propulsion device. The adapter plate is located between the fuel filter and the engine so that the fuel filter is not located under the cowl of the marine propulsion device where an engine is housed.
摘要:
A fuel delivery system for a marine engine provides first, second, and third reservoirs of a fuel vapor separator and first, second, and third pumps to cause fuel to be drawn from the fuel tank and provided to the combustion chambers of an internal combustion chamber. A flow directing component is provided to inhibit recirculated fuel from mixing directly with fuel within the fuel vapor separator that has not yet been pumped to a fuel rail. The flow directing component receives recirculated fuel and also receives fuel from a second reservoir through an orifice formed through a surface of the flow directing component.