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公开(公告)号：JPH07167436A
公开(公告)日：1995-07-04
申请号：JP25104294
申请日：1994-10-17
Applicant: ABB MANAGEMENT AG
Inventor： RORUFU ARUTOHAUSU , YAKOBU KERAA , BURUKUHARUTO SHIYURUTEEBUERUNI
Abstract: PURPOSE: To prevent small local damage from spreading in a cooling passage upon generation of a hole for example by guiding a compensation flow of cooling air into adjacent cooling passes such that a flow speed in the cooling passage exceeds a lower limit value at all times even downstream a local damage portion. CONSTITUTION: Entire cooling air flows into a cooling passage 2 and is in turn supplied into a combustion chamber as combustion air. Cooling ribs 4 are disposed between the cooling passages 2, and a connection opening 5 is provided in the cooling rib 4. Herein, when there happens any local damage in the cooling passage during operation passage through a gas turbine combustion chamber, for example there happens a small hole, the small local damage portion 6 might cause large damage. The reason is that cooling air is not enough supplied to the downstream of the hole. However, a compensation flow is produced by providing the connection opening 5 between the cooling passages 2, and hence a flow speed of the cooling air is never below a lower limit value even downstream of the local damage portion 6, and hence temperature exceeding an upper limit value is avoided.
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公开(公告)号：JPH07150975A
公开(公告)日：1995-06-13
申请号：JP21921494
申请日：1994-09-13
Applicant: ABB MANAGEMENT AG
Inventor： RORUFU ARUTOHAUSU
Abstract: PURPOSE: To suppress NO2 emission to a minimum by injection fuel after mixing a partial quantity flow guided to a low-pressure turbine from a pressure wave supercharger, with gas from a high pressure turbine and combusting this mixture in a combustion chamber. CONSTITUTION: Air compressed in a low-pressure compressor 1 is mixed with fuel in the downstream side of the compressor, and this mixture is supplied to a pressure wave supercharger 3 and combusted. After the partial quantity flow of combustion gas from the pressure wave supercharger 3 guided through a low-pressure driving gas conduit 6 to a low-pressure turbine 8 is mixed with gas from a high-pressure turbine 7, fuel 4 is injected, and this mixture is combusted in a combustion chamber 9. Especially a part of the mixture composed of exhaust gas partially expanded by the high-pressure turbine and cooled and the partial quantity flow guided to the low-pressure turbine is branched before fuel injection to perform intermediate heating, mixed with a part of the air compressed by the low-pressure compressor, and returned to the low- pressure conduit through an exhaust gas conduit and a diagram valve immediately before it flows into the pressure wave supercharger.
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公开(公告)号：JPH0771758A
公开(公告)日：1995-03-17
申请号：JP6975094
申请日：1994-04-07
Applicant: ABB MANAGEMENT AG
Inventor： YOO PIN CHIYOU , ADONAN EROGURU
Abstract: PURPOSE: To obtain a method for achieving thorough mixing of combustion gas and fuel within a shortest distance while keeping a uniform velocity distribution in the mixing region. CONSTITUTION: In a fuel supply system with premixing combustion, a gaseous and/or liquid fuel is introduced as a secondary flow into a gaseous ducted main flow wherein the secondary flow has a substantially smaller mass flow than the main flow. The main flow is guided via vortex generators 9 of which a plurality are arranged adjacent to one another over the periphery of a through duct 20. The secondary flow is fed into the duct 20 in the immediate region of the vortex generators 9. A vortex generator 9 has three surfaces around which flow takes place freely, which surfaces extend in the flow direction, one of them forming the top surface and the two others forming the side faces. The fuel is fed into the duct from nozzles which are located before, behind or in the vortex generator.
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74.发明专利
公开(公告)号：JPH0771757A
公开(公告)日：1995-03-17
申请号：JP6974594
申请日：1994-04-07
Applicant: ABB MANAGEMENT AG
Inventor： YOO PIN CHIYOU , ADONAN EROGURU
Abstract: PURPOSE: To achieve thorough mixing of combustion air and fuel within a shortest distance while stabilizing the flame aerodynamically. CONSTITUTION: Combustion air is guided via vortex generators 9 and fuel is introduced into a duct 20 directly from the region of the vortex generators. A vortex generator has three surfaces around which flow can take place freely, i.e., one forming the top surface and two others forming the side surfaces. These surfaces extend in the flow direction and two side surfaces has an angle a varying in the flow direction. The top surface extends at an incident angle to the duct wall 21 (21a, 21b) which varies in the flow direction.
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公开(公告)号：JPH0763192A
公开(公告)日：1995-03-07
申请号：JP18744594
申请日：1994-08-09
Applicant: ABB MANAGEMENT AG
Inventor： PIEERU MAIRAN
Abstract: PURPOSE: To reduce fluctuations in a clearance to improve efficiency by heating the casing of a compressor, before starting warming up, until the radial clearance between a rotor and a stator due to a temperature gradient stops decreasing. CONSTITUTION: For warm-up start, a compressor casing 2 is heated in consideration of a radial clearance. For this purpose, a plurality of heating channels 7a to 7c are formed in the axial direction of the compressor inside the casing 2, therefore a heating medium is circulatingly-supplied from a separated heater. The inner periphery of the casing 2 is provided with a plurality of guide vanes 4a, 4b, and recessed parts 8 are formed in order to receive the guide vanes 4a, 4b, into which the vane's roots 6a, 6b corresponding to the guide vanes 4a, 4b are inserted. The heating medium flows through the heating channels 7a to 7c from the left to the right, in the opposite direction to the flowing direction in the compressor 1. It is thus possible to obtain a temperature gradient in the axial direction roughly corresponding to that generated in the compressor during operation.
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Patent Agency Ranking
公开(公告)号：JPH0754670A
公开(公告)日：1995-02-28
申请号：JP16128994
申请日：1994-07-13
Applicant: ABB MANAGEMENT AG
Inventor： FUUGO BUETSUTAA
Abstract: PURPOSE: To ensure stability of a shape of a turbine inlet, and prevent thermal deformation by providing each guide part for allowing only expansion and contraction in the radial direction on each inner and outer shell of the turbine inlet for guiding a high temperature gas from a combustion chamber to a turbine part. CONSTITUTION: A gas turbine 1 is provided with a turbine part 2, a combustion chamber 4, and a ring shaped turbine inlet 3 disposed between the turbine part 2 and the combustion chamber 4. The turbine inlet 3 guides a high temperature gas from the combustion chamber 4 to the turbine part 2, and is restricted outward by an outward shell 7 and inward by an inward shell 8. In this case, respective guide parts 12, 13 in many radial directions allocated uniformly in respective circumferential direction, are arranged on the outward shell 7 and/or the inner shell 8. Each of guide parts 12, 13 obstruct one or both sliding of each shell 7, 8, and allow expansion and contraction of a radial direction.
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77.发明专利
公开(公告)号：JPH0715011A
公开(公告)日：1995-01-17
申请号：JP6866794
申请日：1994-04-06
Applicant: ABB MANAGEMENT AG
Inventor： FURIITOHERUMU BAUERU
IPC: H01L29/78 , H01L21/331 , H01L29/06 , H01L29/10 , H01L29/423 , H01L29/739
Abstract: PURPOSE: To provide a novel bipolar MOS FETIGBT having a uniform turn-off current distribution by a pattern produced completely by self-alignment. CONSTITUTION: A bipolar MOS FETIGBT defines a collector region 7 and a source region 8 produced by a self-alignment method. This provides an IGBT characterized by a uniform turn-off current distribution. To this end, the width W of the source region 8 is made narrow so as to flow into the collector region surrounding holes in the lateral direction. In this relationship, it is necessary to ensure that a voltage drop across a PN junction of the source region and the collector region always remain below an intrinsic forward voltage. The IGBT produced in this manner is particularly insensitive to a latch-up.
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公开(公告)号：JPH06257676A
公开(公告)日：1994-09-16
申请号：JP861694
申请日：1994-01-28
Applicant: ABB MANAGEMENT AG
Inventor： MIHIYAERU NOIBORUTO
Abstract: PURPOSE: To avoid deformation of a housing body in a region of causing long- hour fastening of a driven shaft by arranging a bearing part of a flap plate in an additionally stress-unapplied region on the basis of the inhomogeneous pressure distribution in the housing body caused by a service opening. CONSTITUTION: A quick-closing flap is provided with a housing body 2, a service opening 4 formed in the housing body 2, at least two bearing positions 17 arranged in the housing body 2 for a driven shaft 16 and a flap plate 11 cooperating with a detachable fitting ring 10 fixed to the driven shaft 16 so as to be turnable with the axis of the driven shaft as the center. In the form of arranging the bearing positions 17 outside a service opening region of causing the inhomogeneous stress distribution in the housing body, the driven shaft 16 has a connecting means compensating for axial dislocation and an angular deviation in a region between at least the two bearing positions 17.
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公开(公告)号：JPH09182338A
公开(公告)日：1997-07-11
申请号：JP30524896
申请日：1996-11-15
Applicant: ABB MANAGEMENT AG
Inventor： TOOMASU BAUMAN , IERUKU ESUTAAHERUTO
Abstract: PROBLEM TO BE SOLVED: To obtain a conductor bar in which a semiconductive strip can be fitted to the curvature of conductor bar at the coil head part without requiring a large returning force and without causing any twist. SOLUTION: The conductor bar for the stator coil of electrical machine comprises a plurality of conductor elements coated with one common main insulator over the entire length thereof. On the opposite narrow width sides of the conductor bar, hollow spaces are defined by the conductor elements and main insulator by transposition and filled with a semiconductive material coated with a semiconductive strip 2. The strip 2 is composed of a fiber reinforced plastic which is provided alternately with cuts 4 in the direction perpendicular to the longitudinal direction in the coil head parts B, C of conductor bar. The cut is deeper than one half of the width (b) of strip 2 and the width (s) thereof is substantially equal to the thickness of strip.
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公开(公告)号：JPH09177566A
公开(公告)日：1997-07-08
申请号：JP29500696
申请日：1996-11-07
Applicant: ABB MANAGEMENT AG
Inventor： HENRIKU NIIRUSEN , KURISUTOFU RUFUTEI
IPC: F01K13/00 , F01K23/06 , F01K23/10 , F02C7/141 , F02C7/18 , F22B1/18 , F22B21/26 , F28C3/06 , F28D7/02
Abstract: PROBLEM TO BE SOLVED: To provide a cooling air cooler easily and surely operable to ensure a high efficiency of the whole plant and capable of using cooling performance for steam generation. SOLUTION: A cooling air cooler 10 is formed of a helical steam generating machine provided within a cylindrical pressure vessel 23 operated on the basis of counterflow principle and vertically arranged, in which a helical coil pipe 30 fills the space between a jacket inner pipe 26 and a jacket outer pipe 41, and water 12 can be supplied to the coil pipe 30 through a water conduit 32. Steam 14 can be delivered from the coil pipe 30 through a steam conduit 33, the evaporating water 12 flows in the helical part from the lower part to the upper part, cooling air 11 capable of being supplied from a compressor through an air inlet conduit 24 flows in the helical part from the upper part to the lower part, and the air is guided to change the direction in the lowest point within the pressure vessel 23 before it reaches a cooling air outflow conduit 25 after leaving the helical part.
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