FUEL CONTROL SYSTEM AND ASSOCIATED METHOD
First Claim
1. A fuel control system for controlling the purging of alternate fuel in an internal combustion engine at shutdown, comprising:
- at least one valve device configured to deliver a fuel supply to the engine;
a first fuel source configured to provide a primary fuel to the valve device;
a second fuel source configured to provide an alternate fuel to the valve device; and
a controller connected to the valve device and adapted to be connected to an ignition system, the controller being configured to control the valve device responsive to a status of one of the engine and the ignition system.
2 Assignments
0 Petitions
Accused Products
Abstract
A fuel control system for controlling the purging of alternate fuel in an internal combustion engine at shutdown includes: at least one valve device configured to deliver a fuel supply to the engine; a first fuel source configured to provide a primary fuel to the valve device; a second fuel source configured to provide an alternate fuel to the valve device; and a controller connected to the valve device and adapted to be connected to an ignition system. The controller is configured to control the valve device responsive to a status of one of the engine and the ignition system.
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Citations
21 Claims
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1. A fuel control system for controlling the purging of alternate fuel in an internal combustion engine at shutdown, comprising:
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at least one valve device configured to deliver a fuel supply to the engine; a first fuel source configured to provide a primary fuel to the valve device; a second fuel source configured to provide an alternate fuel to the valve device; and a controller connected to the valve device and adapted to be connected to an ignition system, the controller being configured to control the valve device responsive to a status of one of the engine and the ignition system. - View Dependent Claims (2, 3, 4, 7, 8)
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5-6. -6. (canceled)
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9. An internal combustion engine assembly capable of operating on primary and alternate fuels, comprising:
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an internal combustion engine; a first fuel source connected to the engine; a second fuel source connected to the engine; a fuel control unit connected with the first and second fuel sources for regulating fuel to the engine; an ignition system; and a controller connected to the engine, the fuel control unit and the ignition system, the controller being configured to control the fuel control unit responsive to a status of one of the engine and the ignition system. - View Dependent Claims (10, 11, 12, 15, 16, 17)
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13-14. -14. (canceled)
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18. A method of controlling the purging of alternate fuel in an internal combustion engine at shutdown, comprising:
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signaling an internal combustion engine to cease operation, the signaling being carried out with an ignition system; detecting a status of one of the ignition system and the internal combustion engine; and overriding the signal from the ignition system responsive to the detected status such that the engine continues to operate in order to purge alternate fuel. - View Dependent Claims (19, 21)
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20. (canceled)
Specification