IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0379805
(2003-03-06)
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등록번호 |
US-7462948
(2008-12-09)
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발명자
/ 주소 |
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출원인 / 주소 |
- Thinktank PHOENIX Co., Ltd.
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대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
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인용정보 |
피인용 횟수 :
7 인용 특허 :
6 |
초록
▼
The present invention provides a midget gas turbine has: a casing; an irregular-shaped hollow disk rotationally attached to a casing; said irregular-shaped hollow disk having in a hollow portion constituting a bursiform space having a closed peripheral portion in which a guiding vane is provided,
The present invention provides a midget gas turbine has: a casing; an irregular-shaped hollow disk rotationally attached to a casing; said irregular-shaped hollow disk having in a hollow portion constituting a bursiform space having a closed peripheral portion in which a guiding vane is provided, and having a radius changing with respect to the circumferential direction; a fuel conduit provided from a central portion towards a portion of the outer peripheral portion of the irregular-shaped hollow disk and communicated with a fuel nozzle provided in the vicinity of the outer peripheral portion of the irregular-shaped hollow disk; and at least two combustion chambers each comprising a mixing portion for mixing a fuel injected from the fuel nozzle with an external air centrifugally compressed by the guiding vane, a combustor and a combustion gas discharge nozzle portion, said combustion chambers being provided at rotationally symmetric positions at the outer peripheral portion of the irregular-shaped hollow disk where the radius becomes maximum; wherein an external air taken in the hollow portion of the irregular-shaped hollow disk is compressed by the guiding vane, supplied to the combustion chambers, mixed with a fuel supplied from the fuel conduit to be burnt, and a combustion gas discharged from the combustion gas discharge nozzle is discharged towards a substantially circumferential direction of the irregular-shaped hollow disk, whereby the irregular shaped hollow disk is driven by the reaction of the combustion gas.
대표청구항
▼
What is claimed is: 1. A midget gas turbine comprising: a casing; an irregular-shaped hollow disk rotationally attached to a casing; said irregular-shaped hollow disk having a hollow portion constituting a bursiform space having a closed peripheral portion in which a guiding vane is provided, and h
What is claimed is: 1. A midget gas turbine comprising: a casing; an irregular-shaped hollow disk rotationally attached to a casing; said irregular-shaped hollow disk having a hollow portion constituting a bursiform space having a closed peripheral portion in which a guiding vane is provided, and having a radius changing with respect to the circumferential direction; a fuel conduit provided from a central portion towards a portion of the outer peripheral portion of the irregular-shaped hollow disk and communicated with a fuel nozzle provided in the vicinity of the outer peripheral portion of the irregular-shaped hollow disk; and at least two combustion chambers each comprising a mixing portion for mixing a fuel injected from the fuel nozzle with an external air centrifugally compressed by the guiding vane, a combustor and a combustion gas discharge nozzle portion, said combustion chambers being provided at rotationally symmetric positions at the outer peripheral portion of the irregular-shaped hollow disk where the radius becomes maximum; wherein an external air taken in the hollow portion of the irregular-shaped hollow disk is compressed by the guiding vane, supplied to the combustion chambers, mixed with a fuel supplied from the fuel conduit to be burnt, and a combustion gas discharged from the combustion gas discharge nozzle is discharged towards a substantially circumferential direction of the irregular-shaped hollow disk, whereby the irregular shaped hollow disk is driven by the reaction of the combustion gas. 2. A midget gas turbine comprising: an irregular-shaped hollow disk having a hollow portion constituting a bursiform space having a closed peripheral portion in which a guiding vane is provided, and having a radius changing with respect to the circumferential direction, wherein said irregular-shaped hollow disk has a first cylindrical hollow axis communicated with a disk-shaped space formed inside the irregular-shaped hollow disk, and a second axis having in its central portion a fuel supplying hole communicated with a fuel conduit provided along a wall of the irregular-shaped hollow disk and extended from its central portion towards its periphery, said first hollow axis and said second axis protrude from respective sides of a central portion of the irregular-shaped hollow disk, to be supported rotatably by bearings, and said first hollow axis has an end opening to the external air so that the disk-shaped space is communicated with the external air; a fuel supply pipe inserted into the fuel supply hole at the central portion of the second axis to supply fuel from outside, and provided with a sealing device between the fuel supplying hole and the fuel supplying pipe to prevent external air from entering and to provide a rotatable structure; said fuel conduit being provided along the wall of the irregular-shaped hollow disk to be communicated with a fuel nozzle provided in the vicinity of the outer periphery of the irregular-shaped hollow disk; at least two combustion chambers each comprising a mixing portion for mixing a fuel injected from the fuel nozzle with an external air centrifugally compressed in the disk space, a combustor and a combustion gas discharge nozzle portion; said combustion chambers being provided at rotationally symmetric positions at the outermost peripheral portion of the irregular shaped hollow disk; and an ignition plug or an ignition pilot burner provided at the casing wall in the vicinity of the outlet of the combustion gas discharge nozzle; whereby a combustion gas discharged from the combustion gas discharge nozzle portion is discharged towards a substantially circumferential direction of the irregular-shaped hollow disk. 3. The midget gas turbine according to claim 1, wherein the external air is air or an oxidizing gas containing an oxidizing agent. 4. The midget gas turbine according to claim 1, wherein each of the combustion chambers is a catalyst combustion chamber employing as a catalyst a metal or metal oxide consisting of platinum, gold, vanadium, copper, manganese and/or palladium. 5. The midget gas turbine according to claim 1, wherein a rolling bearing, a slide bearing, a magnetic bearing or a static or dynamic type gas bearing is used as the bearing. 6. The midget gas turbine according to claim 1, which further comprises an electric generator comprising: an electric generator disk holding a disk-shaped permanent magnet having at least one pair of N-pole and S-pole arranged alternately in the circumferential direction, said electric generator disk being attached to the irregular-shaped hollow disk so as to be coaxial with it and rotatable about its axis; at least one wire-wound coil made of an electro-conductive material disposed in the circumferential direction so as to face the disk-shaped permanent magnet, wherein a wire-wound coil is fixed to a stator to obtain a single-phase alternate current from both ends of the wire-wound coil, or a plurality of wire-wound coils are grouped to constitute a Y-wiring or a Δ-wiring, and fixed to a stator to obtain a three-phase alternate current from both ends of the grouped wire-wound coils. 7. The midget gas turbine according to claim 1, which further comprises an electric generator comprising: a steel disk holding a disk-shaped permanent magnet having at least one pair of N-pole and S-pole disposed alternately in the circumferential direction, said steel disk being integrally attached to a first hollow axis or a second axis so as to be co-axial with the first hollow axis and/or the second axis; at least one wire-wound coil made of an electro-conductive material disposed in the circumferential direction so as to face the disk-shaped permanent magnet, wherein a wire-wound coil is fixed to a stator to obtain a single-phase alternate current from both ends of the wire-wound coil, or a plurality of wire-wound coils are grouped to constitute a Y-wiring or a Δ-wiring and fixed to a stator to obtain a three-phase alternate current from ends of the grouped wire-wound coils. 8. The midget gas turbine according to claim 1, which further comprises an AC/DC converter for converting a single or three-phase alternate current obtained from ends of a wire-wound coil or a grouped wire-wound coils into a direct current, or an inverter for obtaining the same voltage and/or frequency as those from a commercial power source. 9. The midget gas turbine according to claim 2, which further comprises an AC/DC converter for converting a single or three-phase alternate current obtained from ends of a wire-wound coil or a grouped wire-wound coils into a direct current, or an inverter for obtaining the same voltage and/or frequency as those from a commercial power source. 10. The midget gas turbine according to claim 1, which further comprises a fuel flow controller for detecting a voltage and a frequency of three-phase alternate current obtained from ends of a wire-wound coil or a grouped wire-wound coils and maintaining the detected voltage and the frequency to be constant, or a fuel flow controller for detecting an output voltage obtained at output terminals of a AC/DC converter and maintaining the output voltage to be constant.
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