US3775975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel distribution system
Assignee: General Electric Co
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Filing: 1972-09-05
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Granted: 1973-12-04
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Expires: 1992-09-05
Abstract
Abstract A fuel distribution system for accurately metering the amount of fuel delivered to each of a plurality of fuel injection points associated with a gas turbine engine is shown to include a fuel manifold surrounding and separated radially from the engine casing by a number of hinge-type mounts. A plurality of metering valve housings are mounted directly to the fuel manifold, and a fuel distribution valve is contained within each housing. Fuel is delivered from each housing to an appropriate point on the engine casing via a single pigtail-type fuel delivery tube. Individual tubes and valves and sectors of the fuel manifold are removable without tearing down the entire fuel distribution assembly.
Inventors
- 👤 R Stenger
- 👤 J Richey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:51
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/22; F02C7/232; F02C7/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
In a gas turbine engine of the type which includes a compressor, a combustion system, a turbine for driving the compressor, an external engine casing surrounding the combustion system, and a plurality of fuel/air carbureting devices for injecting a fuel/air mixture into the combustion system, the improvement comprising: a fuel distribution system for delivering fuel to the plurality of fuel/air carbureting devices consisting of a fuel manifold which surrounds the outer engine casing and is separated radially therefrom, at least one flow divider valve housing mounted directly to said fuel manifold, valving means associated with said housing, means for delivering fuel from said housing to at least one of said fuel/air carbureting devices, means for delivering fuel to said fuel manifold, and means for mounting said fuel manifold to the engine casing.
Claim 2
Dependent Claim
132 words
In a gas turbine engine of the type which includes a compressor, a combustion system, a turbine for driving the compressor, an external engine casing surrounding the combustion system, and a plurality of fuel/air carbureting devices for injecting a fuel/air mixture into the combustion system, the improvement comprising: a fuel distribution system for delivering fuel to the plurality of fuel/air carbureting devices consisting of a fuel manifold which surrounds the outer engine casing and is separated radially therefrom, at least one flow divider valve housing mounted directly to said fuel manifold, valving means associated with said housing, means for delivering fuel from said housing to at least one of said fuel/air carbureting devices, means for delivering fuel to said fuel manifold, and means for mounting said fuel manifold to the engine casing.
Claim 3
Dependent Claim
26 words
The improved fuel delivery system recited in claim 1 further characterized in that a plurality of said valve housings are mounted directly to said fuel manifold.
Claim 4
Dependent Claim
24 words
The improved fuel delivery system recited in claim 2 wherein said valve housings are substantially equally spaced around the circumference of said fuel manifold.
Claim 5
Dependent Claim
34 words
The improved fuel delivery system recited in claim 2 wherein said means for delivering fuel from said housings to said fuel/air carbureting devices includes a single pigtail tube extending from each of said housings.
Claim 6
Dependent Claim
37 words
The improved fuel distribution system recited in claim 4 wherein each said flow divider valve housing comprises a generally cylindrical-shaped container rigidly connected to said fuel manifold, and each of said containers includes a removable end cap.
Claim 7
Dependent Claim
30 words
The improved fuel distribution system recited in claim 5 further characterized in that the fuel distribution system lies entirely within an annular cavity, said cavity being supplied with cooling air.
Claim 8
Dependent Claim
23 words
The improved fuel distribution system recited in claim 6 wherein said cavity is formed by the outer engine casing and a fan casing.
Claim 9
Dependent Claim
23 words
The improved fuel distribution system recited in claim 7 wherein said means for mounting said fuel manifold comprise a plurality of hinge-type mounts.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |