US3592574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burner with fuel feed control means responsive to air and fuel flow
Assignee: Individual
•
Filing: 1968-11-05
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Granted: 1971-07-13
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Expires: 1988-11-05
Abstract
Abstract A fuel burner has a spray nozzle with fuel feed means and a blower for producing a flow of combustion air to the nozzle. The device includes a return line returning from the nozzle to the fuel source and a valve in this line which is controlled by comparing the actual value of the fuel flow or air flow with a predetermined desired value. The fuel flow is measured by a device which is connected both to the inlet and return lines of the fuel nozzle.
Inventors
- 👤 Kurt Zenkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:37
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/025; F23N1/022; F23N5/00; F23N5/18; F23N5/184; F23N5/187; F23N2233/00; F23N2233/06; F23N2233/08; F23N2235/00; F23N2235/26; F23N2235/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
In a fuel burner having a spray nozzle, fuel-feeding means for producing a flow of fuel to said nozzle and a blower for producing a second flow of combustion air to the nozzle, the spray nozzle being a return nozzle, said fuel feed means comprising an oil feed pipe and an oil return pipe both connected to the spray nozzle, a return valve in the oil return pipe having an obturating organ, a positioning motor connected to said obturating organ, means for measuring the flow of fuel and the flow of combustion air, means for measuring a variable of one of said flows, means for comparing the value obtained by such measuring means with a predetermined nominal value, and means to adjust, in response to differences in said obtained value and said nominal value, a characteristic of the flow whose value is compared with the predetermined nominal value in such a way that the real value corresponds continually to the nominal value, said means for measuring the flow of fuel comprising a measuring means connected to the oil feed pipe and to the oil return pipe upstream of the obturating organ.
Claim 2
Dependent Claim
191 words
In a fuel burner having a spray nozzle, fuel-feeding means for producing a flow of fuel to said nozzle and a blower for producing a second flow of combustion air to the nozzle, the spray nozzle being a return nozzle, said fuel feed means comprising an oil feed pipe and an oil return pipe both connected to the spray nozzle, a return valve in the oil return pipe having an obturating organ, a positioning motor connected to said obturating organ, means for measuring the flow of fuel and the flow of combustion air, means for measuring a variable of one of said flows, means for comparing the value obtained by such measuring means with a predetermined nominal value, and means to adjust, in response to differences in said obtained value and said nominal value, a characteristic of the flow whose value is compared with the predetermined nominal value in such a way that the real value corresponds continually to the nominal value, said means for measuring the flow of fuel comprising a measuring means connected to the oil feed pipe and to the oil return pipe upstream of the obturating organ.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |