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US 12,644,419 B2Granted
Decoking
AssigneeROLLS-ROYCE plc
InventorsJames A T Smith, Jonathan D Griffiths
Life of this patent
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Abstract
A decoking cleaning system for cleaning at least one component in-situ within a combustion engine system, the decoking system including at least one ultrasonic transducer with a means of connecting the at least one ultrasonic transducer to a component to be cleaned within the combustion engine system, the at least one ultrasonic transducer being connected to a power and voltage supply.
Claims8
A method of decoking a component in a combustion engine having at least one ultrasonic transducer, the method comprising:
- determining a length of time for a cleaning process of the component based upon at least one of, likelihood of coking, engine run time, previous cleaning history of the component in the combustion engine, and/or an available time for running the cleaning process,
- filling the component with a fluid,
- providing an alternating voltage and current to the at least one ultrasonic transducer for a determined time,
- decoking the component in the combustion engine by supplying ultrasonic waves from the at least one transducer to the component in the combustion engine,
- operating at a resonant frequency of the component, the resonant frequency being tracked by altering a frequency of excitation using a Maximum Power Point Tracking algorithm to find and track a resonance of the component as temperature varies in the fluid or the component being cleaned, and
- stopping a supply of the alternating voltage and the current to the at least one ultrasonic transducer.
3 more elements
Dependencies are inferred from the claim text.