Energy recovery system for a mobile machine
First Claim
1. An energy recovery system for a mobile machine, comprising:
- a tank configured to store a liquid fuel for combustion within a main engine located on the locomotive;
a fuel delivery circuit connecting the tank to the main engine;
an auxiliary engine;
a boil-off circuit connecting the tank to the auxiliary engine;
an accumulator fluidly connected to the boil-off circuit between the tank and the auxiliary engine and configured to store gaseous fuel formed in the tank; and
a carbon adsorbent disposed within the accumulator and configured to adsorb the gaseous fuel,wherein the auxiliary engine is configured to selectively generate a suction force to withdraw gaseous fuel adsorbed onto the carbon adsorbent.
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Accused Products
Abstract
The disclosure is directed to an energy recovery system for a mobile machine. The system may have a tank configured to store a liquid fuel for combustion within a main engine located on the locomotive, and a fuel delivery circuit connecting the tank to the main engine. The system may also have an auxiliary engine, and a boil-off circuit connecting the tank to the auxiliary engine. The system may also have an accumulator fluidly connected to the boil-off circuit between the tank and the auxiliary engine and configured to store gaseous fuel formed in the tank, and a carbon adsorbent disposed within the accumulator and configured to adsorb the gaseous fuel. The auxiliary engine may be configured to selectively generate a suction force to withdraw gaseous fuel adsorbed onto the carbon adsorbent.
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Citations
20 Claims
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1. An energy recovery system for a mobile machine, comprising:
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a tank configured to store a liquid fuel for combustion within a main engine located on the locomotive; a fuel delivery circuit connecting the tank to the main engine; an auxiliary engine; a boil-off circuit connecting the tank to the auxiliary engine; an accumulator fluidly connected to the boil-off circuit between the tank and the auxiliary engine and configured to store gaseous fuel formed in the tank; and a carbon adsorbent disposed within the accumulator and configured to adsorb the gaseous fuel, wherein the auxiliary engine is configured to selectively generate a suction force to withdraw gaseous fuel adsorbed onto the carbon adsorbent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating a mobile machine, comprising:
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directing liquid fuel from a tank toward a main engine; directing gaseous fuel formed in the tank through an accumulator toward an auxiliary engine; adsorbing gaseous fuel on a carbon adsorbent disposed in the accumulator; and withdrawing gaseous fuel adsorbed on the carbon adsorbent with a suction force generated by the auxiliary engine. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A train consist, comprising:
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a locomotive having; a frame; a main engine mounted to the frame; a plurality of wheels configured to support the frame and driven by the main engine; and an auxiliary engine mounted to the frame; a tender car having a tank configured to store a liquid fuel; a boil-off circuit connecting the tank to the auxiliary engine; an accumulator fluidly connected to the boil-off circuit between the tank and the auxiliary engine and configured to store gaseous fuel formed in the tank; and a carbon adsorbent disposed within the accumulator and configured to adsorb the gaseous fuel, wherein the auxiliary engine is configured to selectively generate a suction force to withdraw gaseous fuel adsorbed onto the carbon adsorbent; an inlet valve configured to selectively pass gaseous fuel from the tank to the accumulator when a pressure of the tank exceeds a tank pressure threshold; and an outlet valve configured to selectively pass gaseous fuel from the accumulator toward the auxiliary engine when an amount of gaseous fuel stored in the accumulator exceeds a high capacity threshold.
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Specification