Patent US3087253A successfully refreshed from Google Patents.
US4959638A
Expired / Lapsed
US
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Combustion efficiency analyzer, acoustic
Assignee: United States Department of the Navy
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Filing: 1989-07-03
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Granted: 1990-09-25
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Expires: 2009-07-03
Abstract
Abstract A device for monitoring combustion efficiency of a burner with a burner fe has an acoustic sensor probe positioned within the burner, flame signature generating circuitry responsive to the acoustic probe, means for correlating flame signatures with known optimum efficiency characteristics to yield an indication of relative combustion efficiency, and output means for display of the relative combustion efficiency.
Inventors
- 👤 Herbert A. Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:42
CPC Classifications
G; G01; G01H; G01H3/00; G01H3/04; G01H3/08; F; F23; F23N; F23N5/00; F23N5/16; F23N2231/00; F23N2231/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
125 words
An acoustic combustion efficiency analyzer for monitoring the combustion efficiency of a burner unit with a burner flame for optimum efficiency which comprises: an acoustic sensor probe for providing an electrical signal from the burner flame, an amplifier circuit interfaced with the acoustic sensor probe for processing the signal received from the acoustic sensor probe, a frequency spectrum discrimination circuit interfaced with the amplifier circuit and a comparative processor for processing the signal received from the amplifier circuit, a comparative processor interfaced with the frequency spectrum discriminating circuit and an output circuit for analysis of the signal by comparison with a known optimum efficiency signal, and an output circuit interfaced with the comparative processor for monitoring and displaying the combustion efficiency of the burner unit.
Claim 2
Dependent Claim
125 words
An acoustic combustion efficiency analyzer for monitoring the combustion efficiency of a burner unit with a burner flame for optimum efficiency which comprises: an acoustic sensor probe for providing an electrical signal from the burner flame, an amplifier circuit interfaced with the acoustic sensor probe for processing the signal received from the acoustic sensor probe, a frequency spectrum discrimination circuit interfaced with the amplifier circuit and a comparative processor for processing the signal received from the amplifier circuit, a comparative processor interfaced with the frequency spectrum discriminating circuit and an output circuit for analysis of the signal by comparison with a known optimum efficiency signal, and an output circuit interfaced with the comparative processor for monitoring and displaying the combustion efficiency of the burner unit.
Claim 3
Dependent Claim
41 words
The acoustic combustion efficiency analyzer as in claim 1 wherein the acoustic sensor probe comprises a transducer mounted to receive, within a preselected frequency range, the characteristic acoustic signals from the burner flame and convert the acoustic signals to electrical signals.
References Cited (Backward Citations)
US2966209A
Cited
US3635018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |