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US 8,037,850 B2Granted
Method for operating an engine
AssigneeFord Global Technologies, LLC
InventorRoss Dykstra Pursifull
Life of this patent
Estimating the term…
Abstract
A method for operating an engine with a fuel reformer is presented. In one embodiment a first fuel is reformed into a gaseous fuel comprising H, CO, and CH4, or the fuel may change state to vaporized alcohol. The present method provides for ramping injection of the gaseous fuel so that stoichiometric combustion may be maintained while gaseous fuel is injected to the engine.
Claims16
A method for operating an engine, comprising:
- operating an engine by injecting a first liquid fuel;
- processing a second liquid fuel in a fuel reformer to produce a gaseous fuel;
- ramping in an injection amount of said gaseous fuel to said engine;
- and
- adjusting an actuator to a first state in response to said gaseous fuel when said gaseous fuel is a first type of gas;
- adjusting said actuator to a second state in response to said gaseous fuel when said gaseous fuel is a second type of gas, said engine operating at substantially a same engine speed and load when adjusting said actuator.
3 more elements
A method for operating an engine, comprising:
- injecting liquid fuel to said engine;
- ramping in injection of a gaseous fuel to a number of cylinders of said engine;
- ramping out injection of said liquid fuel at a first rate when said gaseous fuel is comprised of a first gas;
- and
- ramping out injection of said liquid fuel at a second rate when said gaseous fuel is comprised of a second gas.
2 more elements
Dependencies are inferred from the claim text.