Claims
- 1. A power augmented gas turbine starter system, comprising:
- starter means including a casing rotatably mounting a turbine wheel therewithin;
- low pressure air supply means communicating with the casing for providing a given volume of low pressure air directly to the starter means; and
- combustor means associated with the low pressure air supply means for receiving only a portion of said given volume of low pressure air therefrom and supplying a flow of hot gas to the starter means for augmenting the power thereof.
- 2. The system of claim 1 wherein said low pressure air supply means comprises conduit means with the combustor means mounted therewithin.
- 3. The system of claim 2, including fuel supply means through said conduit means to the combustor means.
- 4. The system of claim 1 wherein said system includes an auxiliary power unit, and wherein said low pressure air supply means comprises bleed air supply means from the auxiliary power unit.
- 5. The system of claim 4, including fuel supply means from the auxiliary power unit to the combustor means.
- 6. The system of claim 1, including means removably mounting the combustor means in the low pressure air supply means.
- 7. A power augmented gas turbine starter system for a main propulsion engine of an aircraft or the like, comprising:
- starter means including a casing rotatably mounting a turbine wheel therewithin;
- low pressure bleed air supply means from the main propulsion engine communicating with the casing for providing a given volume of low pressure air directly to the starter means; and
- combustor means associated with the low pressure bleed air supply means for receiving only a portion of said given volume of low pressure air therefrom and supplying a flow of hot gas to the starter means for augmenting the power thereof.
- 8. The system of claim 7, including fuel supply means from the main propulsion engine supply to the combustor means.
- 9. A power augmented gas turbine starter system for at least a pair of main propulsion engines, comprising:
- an auxiliary power unit for providing a given volume of low pressure bleed air directly to a starter means of the system;
- a combustor for receiving only a portion of said given volume of low pressure bleed air from the auxiliary power unit;
- at least a pair of gas turbine starters, one starter for each said engine; and
- conduit means between the combustor and each gas turbine starter for supplying a flow of hot gas to the starters from the combustor for augmenting the power of the starters.
- 10. The system of claim 9, including fuel supply means from the auxiliary power unit to the combustor.
- 11. The system of claim 9, including fuel supply means from the source for the main engines to the combustor.
- 12. A power augmented gas turbine starter system for at least a pair of main propulsion engines, comprising:
- an auxiliary power unit for providing a given volume of low pressure bleed air directly to a starter means of the system;
- a combustor for receiving only a portion of said given volume of low pressure bleed air from the auxiliary power unit;
- at least a pair of gas turbine starters, one starter for each said engine;
- conduit means between the combustor and each gas turbine starter for supplying a flow of hot gas to the starters from the combustor for augmenting the power of the starters; and
- cross-bleed circuit means from at least one main propulsion engine to the gas turbine starter of the other main propulsion engine for supplying a flow of hot gas to the starter once the one main propulsion engine is started.
- 13. The system of claim 12, including fuel supply means from the auxiliary power unit to the combustor.
- 14. The system of claim 12, including fuel supply means from the source for the main engines to the combustor.
Parent Case Info
This application is a continuation of application Ser. No. 173,576, filed Mar. 25, 1988 and now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (6)
Number |
Date |
Country |
638875 |
Mar 1962 |
CAX |
709142 |
May 1962 |
CAX |
2053291 |
May 1972 |
DEX |
985391 |
Dec 1982 |
SUX |
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Continuations (1)
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Number |
Date |
Country |
Parent |
173576 |
Mar 1988 |
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