Enhanced starting of turbine engines under various ambient conditions using oxidizer
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/26
F02C-007/264
출원번호
US-0474390
(2009-05-29)
등록번호
US-8402767
(2013-03-26)
우선권정보
IL-179762 (2006-11-30)
발명자
/ 주소
Gross, Amichay H.
Khosid, Savely
Peretz, Arie
출원인 / 주소
Rafael-Advanced Defense Systems, Ltd.
대리인 / 주소
Holtz, Holtz, Goodman & Chick, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
At least one solid mass of oxidizing-species-releasing material (ORM), selected as a solid oxidizer (SO), and/or as oxidizing-species-releasing burning substance (ORBS) is used as a device for enhancing the starting process of a turbine engine under various ambient conditions. The ORM is introduced
At least one solid mass of oxidizing-species-releasing material (ORM), selected as a solid oxidizer (SO), and/or as oxidizing-species-releasing burning substance (ORBS) is used as a device for enhancing the starting process of a turbine engine under various ambient conditions. The ORM is introduced into the combustion chamber of the turbine engine and the starting process of the turbine engine is initiated, by help of the igniter and in association with the ORM to enhance the starting process. In operation, an ORM selected as an SO releases gaseous oxygen when heated to decompose, while an ORM chosen as an ORBS discharges oxidizing species when ignited to burn. An ORM such as an SO or an ORBS may operate alone or in various combinations of both. The ORM is configured to release a predetermined mass flow rate of oxidizing species or of gaseous oxygen.
대표청구항▼
1. A method for enhancing a starting process of a turbine engine which is configured for: (i) ingesting and compressing air, (ii) supplying fuel and creating a controllable combustible mixture of the fuel and air in a combustion chamber of the turbine engine, and (iii) operating at least one igniter
1. A method for enhancing a starting process of a turbine engine which is configured for: (i) ingesting and compressing air, (ii) supplying fuel and creating a controllable combustible mixture of the fuel and air in a combustion chamber of the turbine engine, and (iii) operating at least one igniter coupled to the combustion chamber for releasing heat, transferring the heat, and initiating ignition of the combustible mixture to initiate the starting process, the method comprising:providing at least one solid mass of oxidizing-species-releasing material (ORM) in the combustion chamber of the turbine engine, wherein the ORM is selected, alone or in combination, from the group consisting of solid oxidizers (SO), and oxidizing-species-releasing burning substances (ORBS),initiating the starting process of the turbine engine in association with the ORM and the operation of the at least one igniter, andheating the ORM to release extra oxygen or oxidizing species into the combustion chamber to burn with the supplied fuel, so as to accelerate the turbine engine to above an idle RPM (Revolutions Per Minute) and attain an operational regime. 2. The method according to claim 1, further comprising, when the SO is selected as the ORM, heating the SO to release a predetermined mass flow rate of gaseous oxygen, wherein the heat transferred to the SO at least by the operation of the at least one igniter decomposes the SO, thereby causing the release of the gaseous oxygen. 3. The method according to claim 1, further comprising, when the ORBS is selected as the ORM, igniting the ORBS to release a predetermined mass flow rate of gaseous oxidizing species, wherein the operation of the at least one igniter ignites the ORBS to burn, thereby causing the release of the gaseous oxidizing species. 4. The method according to claim 1, further comprising, when both the ORBS and the SO are selected as the at least one solid mass of ORM, igniting the ORBS to release a predetermined mass flow rate of the oxidizing species, and heating the SO to release a predetermined mass flow rate of gaseous oxygen, wherein the operation of the at least one igniter ignites the ORBS, thereby causing burning of the ORBS and release of heat and of hot oxidizing species, and wherein at least the heat released by the igniter heats the SO thereby causing decomposition of the SO and the release of the gaseous oxygen. 5. The method according to claim 1, wherein the at least one solid mass of ORM comprises at least one unitary mass of material. 6. The method according to claim 1, further comprising replacing a depleted ORM in the turbine engine. 7. The method according to claim 1, wherein the SO includes substances selected, alone or in combination, from the group of mixtures consisting of perchlorate compounds, nitrate compounds, peroxide compounds, and chlorate compounds. 8. The method according to claim 1, wherein the ORBS includes substances selected, alone or in combination, from the group of mixtures or compounds consisting of elastomeric binders, inorganic oxidizers, organic plasticizers and additives comprising at least one of bonding agents, curing agents, wetting agents, stabilizers, anti-oxidants, catalysts, and burning rate modifiers. 9. The method according to claim 1, wherein when the SO is selected as the at least one solid mass of ORM, the at least one igniter ignites the combustible mixture, and the heat provided by both the igniter and by the combustion of the combustible mixture heats the SO, which thermally decomposes to release gaseous oxygen. 10. The method according to claim 1, wherein when both the ORBS and the SO are selected as the at least one solid mass of ORM, the at least one igniter ignites both the combustible mixture and the ORBS which burns to release the oxidizing species, and wherein the heat provided by the igniter, by the combustion of the combustible mixture, and by the burning of the ORBS heats the SO, whereby the SO thermally decomposes to release gaseous oxygen. 11. The method according to claim 1, further comprising retrofitting the at least one solid mass of ORM into an existing turbine engine. 12. A system including: a turbine engine which is configured for: (i) ingesting and compressing air, (ii) supplying fuel and creating a controllable combustible mixture of the fuel and air in a combustion chamber of the turbine engine, and (iii) operating at least one igniter for releasing heat, transferring the heat, and initiating ignition of the combustible mixture to initiate a starting process of the turbine engine, andat least one solid mass of oxidizing-species-releasing material (ORM) which is provided in the combustion chamber of the turbine engine,wherein the ORM is selected, alone or in combination, from the group consisting of solid oxidizers (SO) which decompose into gaseous oxygen when heated, and oxidizing species releasing burning substances (ORBS), andwherein the ORM is heated to release extra oxygen or oxidizing species into the combustion chamber to burn with the supplied fuel, so as to accelerate the turbine engine to above an idle RPM (Revolutions Per Minute) and attain an operational regime. 13. The system according to claim 12, wherein: the SO is adapted to release a predetermined mass flow rate of the gaseous oxygen when heated, andthe heat transferred to the SO by the operation of the at least one igniter decomposes the SO, thereby causing the release of the gaseous oxygen. 14. The system according to claim 12, wherein: the ORBS is adapted to release a predetermined mass flow rate of gaseous oxidizing species when ignited to burn, andthe operation of the at least one igniter ignites the ORBS, thereby causing the release of the gaseous oxidizing species. 15. The system according to claim 12, wherein: the ORBS is adapted to release a predetermined mass flow rate of the oxidizing species when ignited to burn and the SO is adapted to release a predetermined mass flow rate of the gaseous oxygen when heated, andthe operation of the at least one igniter releases the heat and ignites the ORBS, thereby causing burning of the ORBS and release of the heat and of hot oxidizing species, and wherein at least the heat released by the igniter heats the SO thereby causing decomposition of the SO and the release of the gaseous oxygen. 16. The system according to claim 12, wherein the at least one solid mass of ORM comprises at least one unitary mass of material. 17. The system according to claim 12, wherein the at least one solid mass of ORM is provided in the turbine engine for one of replacement of a depleted ORM, and for retrofit installation into an existing turbine engine. 18. The system according to claim 12, wherein the SO includes substances selected, alone or in combination, from the group of mixtures consisting of perchlorates compounds, nitrates compounds, peroxides compounds, and chlorates compounds. 19. The system according to claim 12, wherein the ORBS includes substances selected, alone or in combination, from the group of mixtures or compounds consisting of elastomeric binders, inorganic oxidizers, organic plasticizers, and additives comprising at least one of bonding agents, curing agents, wetting agents, stabilizers, anti-oxidants, catalysts, and burning rate modifiers. 20. The system according to claim 12, wherein when the SO is selected as the at least one solid mass of ORM, the at least one igniter ignites the combustible mixture, and the heat provided by both the igniter and by the combustion of the combustible mixture heats the SO, which thermally decomposes to release the gaseous oxygen. 21. The system according to claim 12, wherein when both the ORBS and the SO are selected as the at least one solid mass of ORM, the at least one igniter ignites both the combustible mixture and the ORBS which burns to release the oxidizing species, and wherein the heat provided by the igniter, by the combustion of the combustible mixture, and by the burning of the ORBS heats the SO, whereby the SO thermally decomposes to release the gaseous oxygen.
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이 특허에 인용된 특허 (6)
Zhang Yunchang (Lenexa KS) Cannon James C. (Olathe KS), Chemical oxygen generator.
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