Method and system for the control of fumigation
AssigneeAutotronic Controls Corporation
InventorsBrandon K. Uhde, Ezell R. Clarke, Stephen C. Masters, Douglas B. Waits
Life of this patent
Estimating the term…
Abstract
A system and method of adjusting the rate of supplementary fuel flow to an engine while monitoring the operating characteristics of an engine. The amount of pressure to apply to a regulator valve is determined based at least in part upon the operating conditions of the engine and information included in a stored fuel grid.
Claims16
A method of adjusting the rate of supplementary fuel flow to an engine, the method comprising:
- applying a first pressure to a regulator valve causing a fuel flow to occur at an outlet of the regulator valve;
- adjusting the first pressure based at least in part upon a monitored second pressure at the outlet of the regulator valve and a stored target pressure, the stored target pressure based upon operating characteristics of an engine, the adjusting altering the fuel flow at the outlet of the regulator valve;
- and
- wherein the fuel flow at the outlet of the regulator valve is substantially not affected by a third pressure downstream of a restriction, the restriction being positioned downstream of the regulator valve.
A system for supplying supplementary fuel to and engine comprising:
- a memory for storing an operational window, the operational window defining the optimum operating characteristics of the engine;
- and
- a controller coupled to the memory, the controller receiving operating characteristics of the engine, comparing the sensed operational characteristics to the operational window, and selectively adjusting a pressure applied to a regulator valve based upon the comparing.
A method of developing a target fuel pressure for an engine comprising:
- receiving a plurality of calibration values;
- receiving a plurality of operating conditions;
- scaling the operating parameters based on the calibration values;
- and
- determining a target pressure based at least in part upon a stored relationship between the target pressure and the plurality of scaled operating conditions.
A method of adjusting the rate of supplementary fuel flow to an engine, the method comprising:
- monitoring operating characteristics of an engine;
- storing a relationship between a target pressure and operating conditions in electronic memory;
- receiving calibration values from a user;
- applying the calibration values to at least some of the received operating characteristics;
- applying at least some of the calibrated operating characteristics to the relationship to generate the target pressure at the outlet of a regulator valve;
- and
- adjusting a control pressure applied to the regulator valve based at least in part upon the target pressure, wherein the target pressure is substantially unaffected by a pressure at a restriction, the restriction being downstream of the regulator valve.
Dependencies are inferred from the claim text.