Alternate fueling systems and associated methods
First Claim
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1. A fuel control system, comprising:
- an electronic controller configured to;
concurrently (i) control a source valve in fluid communication with a flow cell, a primary fuel tank, and an internal combustion engine to source supply fuel from the primary fuel tank to the engine, the source valve configured to selectively source fluid to the engine from one of (1) the primary fuel tank and (2) the flow cell, and (ii) control a bypass valve in fluid communication with the flow cell, the primary fuel tank, and the engine to direct unconsumed excess fuel from the engine to the primary fuel tank, the bypass valve configured to selectively direct fluid from the engine to one of (1) the primary fuel tank and (2) the flow cell; and
concurrently (i) control the source valve to source supply fuel from the flow cell to the engine, and (ii) control the bypass valve to direct unconsumed excess fuel from the engine to the flow cell.
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Abstract
An alternative fueling system configured to consume alternative fuels by renewable identification number (RIN) assignment to enforce neat consumption; or moreover and more specifically, to utilize that RIN assignment whenever neat consumption is possible, thereby lessening usage constraints upon the remaining stock(s) of renewable fuel as an example, and/or to provide purging of the alternative fuel from the engine on shutdown.
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Citations
19 Claims
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1. A fuel control system, comprising:
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an electronic controller configured to; concurrently (i) control a source valve in fluid communication with a flow cell, a primary fuel tank, and an internal combustion engine to source supply fuel from the primary fuel tank to the engine, the source valve configured to selectively source fluid to the engine from one of (1) the primary fuel tank and (2) the flow cell, and (ii) control a bypass valve in fluid communication with the flow cell, the primary fuel tank, and the engine to direct unconsumed excess fuel from the engine to the primary fuel tank, the bypass valve configured to selectively direct fluid from the engine to one of (1) the primary fuel tank and (2) the flow cell; and concurrently (i) control the source valve to source supply fuel from the flow cell to the engine, and (ii) control the bypass valve to direct unconsumed excess fuel from the engine to the flow cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification