US3938933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil burning method
Assignee: Individual
•
Filing: 1973-06-11
•
Granted: 1976-02-17
•
Expires: 1993-06-11
Abstract
Abstract Heated fuel-oil is injected into an open-ended mixing chamber simultaneously with a jet of water so that an intimate mixture of fuel-oil and water is formed. This mixture is ignited and sufficient air is supplied to support combustion. To clean and pre-heat the fuel, it is injected into a tank partly filled with hot water, through which the oil rises to form a separate layer in the top of the tank, from where it is withdrawn.
Inventors
- 👤 Gregorio Cardenes Armas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:58
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/16; F23D11/36; F23D11/44
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A method of burning fuel-oil comprising the steps of: injecting fuel-oil into a tank partly filled with hot water maintained at approximately 90°C; allowing the fuel-oil to rise through the hot water to form a separate layer of fuel-oil in the top of said tank while preheating said fuel-oil to a temperature of approximately 90°C; withdrawing fuel-oil from said layer; heating the thus withdrawn fuel-oil to a temperature of approximately 300°C; injecting the heated fuel-oil into an open-ended mixing chamber of a combustion chamber while simultaneously injecting into said mixing chamber a separate jet of water so that an intimate mixture of fuel-oil and water is formed; and supplying to the open end of said mixing chamber sufficient air to support combustion of the said mixture.
Claim 2
Independent Claim
126 words
A method of burning fuel-oil comprising the steps of: injecting fuel-oil into a tank partly filled with hot water maintained at approximately 90°C; allowing the fuel-oil to rise through the hot water to form a separate layer of fuel-oil in the top of said tank while preheating said fuel-oil to a temperature of approximately 90°C; withdrawing fuel-oil from said layer; heating the thus withdrawn fuel-oil to a temperature of approximately 300°C; injecting the heated fuel-oil into an open-ended mixing chamber of a combustion chamber while simultaneously injecting into said mixing chamber a separate jet of water so that an intimate mixture of fuel-oil and water is formed; and supplying to the open end of said mixing chamber sufficient air to support combustion of the said mixture.
Claim 3
Dependent Claim
41 words
A method as claimed in claim 1, further comprising withdrawing hot water from said tank, returning said withdrawn water to said tank through a conduit, and introducing fuel-oil into said conduit, whereby the thus introduced fuel-oil is drawn into the tank.
Claim 4
Dependent Claim
28 words
A method as claimed in claim 1, further comprising freeing said fuel-oil from particles and pockets of water while allowing said fuel-oil to rise through said hot water.
Claim 5
Independent Claim
66 words
A method of burning fuel-oil comprising: preheating fuel-oil to approximately 90°C while freeing said fuel-oil from particles and pockets of water; passing the preheated fuel-oil, free from particles and pockets of water, to a burner assembly; heating said fuel-oil in said burner assembly to approximately 300°C; and ejecting the hot fuel-oil from said assembly simultaneously with a separate jet of water which mixes with the fuel-oil.
Claim 6
Independent Claim
66 words
A method of burning fuel-oil comprising: preheating fuel-oil to approximately 90°C while freeing said fuel-oil from particles and pockets of water; passing the preheated fuel-oil, free from particles and pockets of water, to a burner assembly; heating said fuel-oil in said burner assembly to approximately 300°C; and ejecting the hot fuel-oil from said assembly simultaneously with a separate jet of water which mixes with the fuel-oil.
References Cited (Backward Citations)
US2732070A
Cited
US2033010A
Cited
US2104311A
Cited
US3589314A
Cited
US3766942A
Cited
US3749318A
Cited
US3741712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |