Marine engine fuel cooling system
OwnerForest Robertsinventor
Life of this patent
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Abstract
A fuel cooling system for a marine inboard engine, including a fuel tank, a fuel supply conduit, and a heat exchanger. The fuel supply conduit includes first and second ends, and extends between the fuel tank and a fuel injection system for the engine. The heat exchanger is disposed intermediate the first and second ends of the fuel supply conduit, and includes a fuel passage in fluid communication with the fuel supply conduit, and a coolant passage in fluid communication with a coolant side of a closed-loop auxiliary cooling system.
Claims15
A fuel cooling system for a marine inboard diesel engine, comprising:
- a fuel tank;
- a fuel supply conduit having first and second ends and extending between the fuel tank and a fuel injection system for the marine inboard diesel engine;
- a heat exchanger disposed intermediate the first and second ends of the fuel supply conduit, the heat exchanger including a fuel passage in fluid communication with the fuel supply conduit, and a coolant passage in fluid communication with a coolant side of a closed-loop auxiliary cooling system;
- and
- a fuel return conduit extending between the fuel injection system and the fuel tank.
A fuel cooler for a marine diesel engine adapted to be disposed in a fuel supply conduit extending between a fuel tank and a fuel injection system for the marine diesel engine, comprising:
- a heat exchanger having a fuel passage for fluid communication with the fuel supply conduit extending between the fuel tank and the fuel injection system of the marine diesel engine, and a coolant passage for fluid communication with a coolant side of a closed-loop auxiliary cooling system.
A method of decreasing the temperature of fuel supplied to a marine inboard diesel engine, comprising:
- flowing the fuel from a fuel tank through a first portion of a fuel supply conduit;
- flowing the fuel through a fuel passage in a heat exchanger;
- flowing coolant from a coolant side of a closed-loop auxiliary cooling system through a coolant passage in the heat exchanger, thereby decreasing the temperature of the fuel;
- and
- flowing the fuel through a second portion of the fuel supply conduit to a fuel injection system for the marine inboard diesel engine;
- and
- flowing uncombusted fuel from the fuel injection system through a fuel return conduit to the fuel tank.
(canceled)
Dependencies are inferred from the claim text.