Patent US3817273A successfully refreshed from Google Patents.
US3817273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel system for diesel engines
Assignee: Individual
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Filing: 1972-06-16
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Granted: 1974-06-18
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Expires: 1992-06-16
Abstract
Abstract The system of the invention is designed for treating liquid which may comprise as one instance means for cooling liquid. Such is accomplished by a novel cooling tank. The system has particular application in Diesel engines and also may be used as cooling systems for the liquid used in cooling machine tools. The system may include a meter arranged to measure consumption of fuel, particularly in the Diesel system. Where the system is used with Diesel engines and a meter is used, a by-pass is provided around the meter which includes a valve so that the by-pass can be used when it is desired that the flow be not measured.
Inventors
- 👤 C Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:38
CPC Classifications
F; F02; F02M; F02M65/00; F02M65/001; F01; F01P; F01P11/00; F02M53/00; F02M55/00; F02M55/007; F02B; F02B3/00; F02B3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6525; Y10T137/7722; Y10T137/7723; Y10T137/7729
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A fuel treating system for engines of the type having a fuel mixing device, a fuel tank, a fuel line extending between the fuel tank and the fuel mixing device, the fuel mixing device being of the type which discharges unburned fuel, a fuel return line extending from the fuel mixing device to return the unburned fuel, said fuel treating system comprising a. a cooling tank, b. means defining inlet means in said cooling tank arranged to be connected to said fuel return line whereby fuel deposited in said tank is cooled, c. and means defining outlet means in said cooling tank arranged to be connected to one of said fuel return line and said fuel line, d. said inlet means allowing free return flow of unburned fuel into said cooling tank when said engine is running.
Claim 2
Dependent Claim
137 words
A fuel treating system for engines of the type having a fuel mixing device, a fuel tank, a fuel line extending between the fuel tank and the fuel mixing device, the fuel mixing device being of the type which discharges unburned fuel, a fuel return line extending from the fuel mixing device to return the unburned fuel, said fuel treating system comprising a. a cooling tank, b. means defining inlet means in said cooling tank arranged to be connected to said fuel return line whereby fuel deposited in said tank is cooled, c. and means defining outlet means in said cooling tank arranged to be connected to one of said fuel return line and said fuel line, d. said inlet means allowing free return flow of unburned fuel into said cooling tank when said engine is running.
Claim 3
Dependent Claim
135 words
A fuel system in combination with a Diesel engine comprising a. a fuel tank in said system, b. a fuel mixing device in the engine, c. a fuel line connected between the fuel tank and the fuel mixing device for providing communication therebetween, d. the fuel mixing device being of the type which discharges unburned fuel when the engine is running, e. a fuel return line connected between said fuel mixing device and said fuel line returning the unburned fuel when the engine is running back into the fuel mixing device together with fuel from the fuel tank, f. and cooling means connected into one of said fuel line and fuel return line for lowering the temperature of returning fuel as it flows with fuel from the fuel tank back into the fuel mixing device.
Claim 4
Dependent Claim
135 words
A fuel system in combination with a Diesel engine comprising a. a fuel tank in said system, b. a fuel mixing device in the engine, c. a fuel line connected between the fuel tank and the fuel mixing device for providing communication therebetween, d. the fuel mixing device being of the type which discharges unburned fuel when the engine is running, e. a fuel return line connected between said fuel mixing device and said fuel line returning the unburned fuel when the engine is running back into the fuel mixing device together with fuel from the fuel tank, f. and cooling means connected into one of said fuel line and fuel return line for lowering the temperature of returning fuel as it flows with fuel from the fuel tank back into the fuel mixing device.
Claim 5
Dependent Claim
30 words
The fuel system of claim 2 wherein said cooling means comprises a cooling tank having an inlet for receiving returning fuel and an outlet for returning fuel to the engine.
Claim 6
Dependent Claim
20 words
The fuel system of claim 3 wherein said cooling tank has projecting fins to lower the temperature of fuel therein.
Claim 7
Dependent Claim
28 words
The fuel system of claim 3 wherein said cooling tank has cooling fins projecting from both its inner and outer surfaces to lower the temperature of fuel therein.
Claim 8
Dependent Claim
42 words
The fuel system of claim 3 wherein the outlet from said tank is arranged to be connected into said fuel line whereby the fuel fed to the engine comprises an admixture of fuel from the fuel tank and from the cooling tank.
References Cited (Backward Citations)
US1725210A
Cited
US3118492A
Cited
US3294148A
Cited
US1328920A
Cited
US1543071A
Cited
US1488566A
Cited
US1642579A
Cited
US2191490A
Cited
US2891606A
Cited
US3241494A
Cited
US3085589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |