Patent ID: 11859568
Assignee: ECONTROLS, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 2:
3. The system of claim 2, wherein the throttle system is calibrated using a calibration method in which a fuel property database is generated, where the fuel property database comprises information including fuel properties and air-fuel ratio adjustments of the internal combustion engine, the calibration method comprising:
a) supplying the internal combustion engine with a gaseous fuel, wherein said gaseous fuel has known fuel properties, the internal combustion engine comprising the throttle system;
b) entering known fuel properties of known fuel type into a fuel property database, the fuel property database being accessible to a user via the controller or the controlling interface;
c) operating said internal combustion engine, the internal combustion engine being configured to gauge two or more air-fuel ratios;
d) gauging a difference between air-fuel ratios, wherein the gauging occurs during operation of said internal combustion engine;
e) adjusting components in said internal combustion engine, wherein the adjustments are based on a gauged difference between two or more air-fuel ratios;
f) determining a numerical value for said gauged difference between two or more air-fuel ratios;
g) entering said numerical value into said fuel property database, wherein the numerical value is used to correlate fuel properties with said gauged difference between two or more air-fuel ratios; and
h) repeating steps a-g with other known fuels other than the gaseous fuel used at step a.