VARIABLE SPEED DUAL FUELED ENGINE AND ELECTRICAL POWER MANAGEMENT APPARATUS AND METHODS
First Claim
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1. A fuel system comprising:
- a first fuel injector configured for supplying diesel fuel to a variable speed dual fuel engine;
a second fuel injector configured for supplying natural gas to the engine; and
a fuel controller configured to implement a diesel injection schedule and a natural gas injection schedule based on at least a fuel map, an optimal engine speed, and a current engine speed.
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Abstract
A fuel system is provided for use with a variable speed dual fuel engine. The fuel system comprises a first fuel injector configured for supplying diesel fuel to the engine, a second fuel injector configured for supplying natural gas to the engine, and a fuel controller configured to implement a diesel injection schedule and a natural gas injection schedule based on at least a fuel map, an optimal engine speed and a current engine speed.
24 Citations
20 Claims
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1. A fuel system comprising:
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a first fuel injector configured for supplying diesel fuel to a variable speed dual fuel engine; a second fuel injector configured for supplying natural gas to the engine; and a fuel controller configured to implement a diesel injection schedule and a natural gas injection schedule based on at least a fuel map, an optimal engine speed, and a current engine speed. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A variable speed dual fuel engine comprising:
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a combustion chamber; and a fuel system for supplying fuel into the combustion chamber, the fuel system comprising; a first fuel injector configured for supplying diesel fuel to the combustion chamber; a second fuel injector configured for supplying natural gas to the combustion chamber; and a fuel controller configured; to establish an optimization priority and a starting fuel selection, to select one or more fuel maps based upon the optimization priority and the starting fuel selection, to determine an optimal engine speed based at least on the one or more fuel maps and on at least one engine load parameter, and to determine at least one fuel injection schedule for the first fuel injector and for the second fuel injector based on the one or more fuel maps, the optimal engine speed, and a current shaft speed. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An electrical power generation and distribution system comprising:
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a variable speed dual fuel engine; an electrical generator configured to be driven by the variable speed dual fuel engine; and an electrical power management system connected to monitor and control electrical connection of at least one electrical load to the electrical generator; wherein the variable speed dual fuel engine comprises a fuel system that is configured; to determine an optimal engine speed based at least on one or more fuel maps and at least one engine load parameter; to determine at least one fuel injection schedule, for delivering at least one of diesel or natural gas to a combustion chamber of the variable speed dual fuel engine, based at least on the one or more fuel maps, the optimal engine speed, and a current shaft speed; and to implement the at least one fuel injection schedule using at least one fuel injector. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification