Dual fuel diesel engine system
OwnerMichael Kilbourneinventor
Life of this patent
Estimating the term…
Abstract
A dual fuel system and method for an engine including a liquid fuel supply subsystem for supplying liquid fuel to the engine and an electronic control module configured to control, via one or more liquid fuel control signals, the amount of liquid fuel supplied to the engine based on one or more sensor signals. A gaseous fuel supply subsystem is configured to supply gaseous fuel to the engine and an electronic controller subsystem responsive to liquid fuel control signal(s) is configured to determine, based on the liquid fuel control signals, a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine for dual fuel operation.
Claims28
A compression internal combustion system comprising:
- an engine including one or more cylinders;
- a liquid fuel supply subsystem for supplying liquid fuel to the engine;
- an electronic control module configured to control, via one or more liquid fuel control signals, the amount of liquid fuel supplied to the engine by the liquid fuel supply subsystem based on one or more sensor signals;
- a gaseous fuel supply subsystem configured to supply gaseous fuel to the engine;
- and
- an electronic controller subsystem responsive to one or more said liquid fuel control signals and configured to:
- determine, based on said one or more liquid fuel control signals, the amount of liquid fuel and gaseous fuel to be supplied to the engine for dual fuel operation,
- control the liquid fuel supply subsystem to supply said determined amount of liquid fuel to the engine, and
- control the gaseous fuel supply subsystem to supply said determined about of gaseous fuel to the engine.
A compression internal combustion system comprising:
- an engine;
- a liquid fuel supply subsystem for supplying liquid fuel to the engine;
- an electronic control module configured to control, via one or more liquid fuel control signals, the amount of liquid fuel supplied to the engine by the liquid fuel supply subsystem based on one or more sensor signals;
- a gaseous fuel supply subsystem configured to supply gaseous fuel to the engine;
- and
- an electronic controller subsystem responsive to one or more said liquid fuel control signals and configured to:
- determined, based on said one or more liquid fuel control signals, a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine,
- deliver one or more modified liquid fuel control signals to the liquid fuel supply subsystem to control the liquid fuel supply subsystem to supply said determined modified amount of liquid fuel to the engine, and
- control the gaseous fuel supply subsystem to supply the determined amount of gaseous fuel to the engine.
A dual fuel method comprising:
- supplying liquid fuel to an engine via a liquid fuel supply subsystem;
- generating one or more liquid fuel control signals to vary the amount of liquid fuel supplied to the engine by the liquid fuel supply subsystem based on one or more sensor signals;
- intercepting one or more of said liquid fuel control signals;
- connecting a gaseous fuel supply subsystem to the engine for operation in a dual fuel mode;
- determining, based on one or more said intercepted liquid fuel control signals, a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine in a dual fuel mode;
- controlling the liquid fuel supply subsystem to supply said determined modified amount of liquid fuel to the engine;
- and
- controlling the gaseous fuel supply subsystem to supply said determined amount of gaseous fuel to the engine.
A dual fuel engine control system comprising:
- a controllable gaseous fuel supply subsystem configured to supply gaseous fuel to an engine;
- and
- an electronic controller subsystem configured to:
- intercept one or more liquid fuel control signals;
- determine based on one or more of said intercepted liquid fuel control signals, a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine,
- control the gaseous fuel supply subsystem to supply said determined amount of gaseous fuel to the engine, and
- control a liquid fuel supply subsystem to supply said determined modified amount of liquid fuel to the engine.
A dual fuel control method comprising:
- intercepting one or more liquid fuel control signals;
- determining, based on one or more intercepted liquid fuel control signals, an amount of liquid fuel and gaseous fuel to be supplied to the engine;
- supplying said determined amount of gaseous fuel to the engine;
- and
- supplying said determined amount of liquid fuel to the engine.
A method of operating a compression ignition internal combustion engine having an electronic control module configured to control, via one or more control signals, the amount of liquid fuel delivered to the engine based on one or more sensor signals, the method comprising:
- intercepting one or more said liquid fuel control signals;
- supplying said intercepted control signals to an electronic controller subsystem;
- using the electronic controller subsystem to determine a modified amount of liquid fuel and an amount of gaseous fuel to be supplied to the engine based on the intercepted control signals for dual fuel operation;
- supplying one or more modified control signals to change the amount of liquid fuel delivered to the engine to said determined modified amount;
- and
- supplying said determined modified amount of liquid fuel to the engine.
Dependencies are inferred from the claim text.