Patent ID: 11952906
Assignee: GENERAL ELECTRIC COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC F  B | IPC B  F

Claim 8:
9. A system comprising:
a pumping device configured to clean an internal structure of a turbine engine by directing a foam detergent into the turbine engine to reduce an amount of one or more contaminants inside the turbine engine, the foam detergent directed into the turbine engine such that an effluent portion of the foam detergent exits from the turbine engine with at least some of the one or more contaminants;
a sensor configured to measure a characteristic of the effluent portion of the foam detergent that exits from inside the turbine engine; and
a controller configured to
estimate, for each of plural, different asymptotic limits of the characteristic, a continued time period during which the foam detergent is to be directed through the turbine engine before the characteristic comes within a designated range of the plural, different asymptotic limits;
select one of the different asymptotic limits; and
continue to direct the foam detergent into the turbine engine for the continued time period associated with the asymptotic limit that is selected.