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US 2011/0214644 A1Published application
Cold-Start Fuel Control System
AssigneeWoodward, Inc.
InventorsJason C. Barta, Michael W. Bloemen, Stephan M. Brandl
Life of this patent
Estimating the term…
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AssigneeWoodward, Inc.
InventorsJason C. Barta, Michael W. Bloemen, Stephan M. Brandl
Estimating the term…
A fuel control system for controlling the supply of liquefied petroleum gas (LPG) to injectors of a fuel supply system during a cold start is provided. The fuel control system includes a LPG pressure regulator and a cold-start fuel control valve for throttling fuel to the injectors when the pressure of the LPG is below a nominal set point pressure of the pressure regulator. The cold-start fuel control valve may be in parallel or series with a fuel lock-off valve. The system is configured to supply limited discrete amounts of LPG to the injectors when the pressure of the LPG is below the nominal set point pressure to allow the LPG to vaporize prior to being injected, by the injector, into an engine. Operation of the cold-start fuel control valve during non-cold starts and normal operation are also provided.
A liquefied petroleum gas (LPG) fuel control system for controlling fuel supplied to an engine from an LPG tank, the fuel control system comprising:
A liquefied petroleum gas (LPG) fuel control system for controlling fuel supplied to an engine from an LPG tank, the fuel control system comprising:
A method of starting an engine operating on a liquefied petroleum gas using a fuel control system, the method comprising:
Dependencies are inferred from the claim text.