-
公开(公告)号：JP2000064806A
公开(公告)日：2000-02-29
申请号：JP7867899
申请日：1999-03-23
Applicant: ABB RESEARCH LTD
Inventor： BLOECHLINGER MICHAEL , LUKETIC IVAN , SEMMLER KLAUS , WILFERT GUENTER DR
Abstract: PROBLEM TO BE SOLVED: To form a cooling hole regardless of a manufacturing error of wall thickness and make it applicable to all wall thickness by guiding boring radiation in such a way as to be maintained almost in a range of selected cross section in a supply part area. SOLUTION: A through hole with a slightly smaller diameter compared to a cylindrical supply part is bored in a wall. A diffuser part is cut at cutting speed conformed to the depth of each hole by laser radiation 60. In this case, the laser radiation 60 is converged by a lens 62 and guided along an outline 64 to be cut, and finally the cylindrical part is cut to the final outline. Laser radiation is controlled by a CNC machine through a CAD/CAM interface. A cooling chamber side inlet edge area of a cooling hole 20 is additionally cut in a laser boring process. An area of constituting the diffuser part can therefore be reduced.
-
公开(公告)号：JP2000040420A
公开(公告)日：2000-02-08
申请号：JP19555599
申请日：1999-07-09
Applicant: ABB RESEARCH LTD
Inventor： BAUMANN THOMAS DR , BJOERKLUND ANDERS , OESTERHELD JOERG
Abstract: PROBLEM TO BE SOLVED: To provide insulative material of unchanging electric particle discharge adaptable to the environment and suitable for use at a relatively high temperature and under a high voltage. SOLUTION: Electric insulative material includes an insulation layer 10 and a polymer, particularly thermoplastic resin. The insulation layer 10 has mineral which has particle size particularly not more than 20 μm and is formed in a thin plate shape, particularly a micro mica thin plate 2. The micro mica thin plates 2 are laminated so that hollow parts are formed between the micro mica thin plates 2 and are substantially in parallel to the insulation layer 10. The polymer is permanently linked with the insulation layer 10 and the hollow parts 3 of the insulation layer 10 are filled with the polymer, and thus more uniform insulative material 1 can be obtained.
-
公开(公告)号：JP2000037077A
公开(公告)日：2000-02-02
申请号：JP18398299
申请日：1999-06-29
Applicant: ABB RESEARCH LTD
Inventor： BERNET STEFFEN , BRUECKNER THOMAS , STEIMER PETER DR
Abstract: PROBLEM TO BE SOLVED: To provide the structure and the usage of a three-point converter. SOLUTION: This three-point converter is provided with a decoupling network 1 in which the first input of a decoupling network is connected to the positive pole of an intermediate circuit, the first output is connected to the negative pole of the three-point converter and is used for an upper-half bridge, and a decoupling network 2 in which the second input of the decoupling network is connected to the negative pole of the intermediate circuit, the second output of the decoupling network is connected to the negative pole of the three-point converter for a lower-half bridge. The remaining inputs of the decoupling networks 1, 2 are connected to the center tap 3 of the intermediate circuit, the remaining outputs of the decoupling networks 1, 2 are connected to the half of the bridge through an NPC diode, and commutating voltage in the main switches T11,..., T34 of the upper and lower halves of respective bridges are separated from the one of the decoupling networks 1, 2 to be decoupled from 1/2(Vdc) of intermediate circuit voltage.
-
174.发明专利
公开(公告)号：JPH11332154A
公开(公告)日：1999-11-30
申请号：JP10975499
申请日：1999-04-16
Applicant: ABB RESEARCH LTD
Inventor： BAUMANN THOMAS DR , FRIED REINHARD , JOHO REINHARD , OESTERHELD JOERG DR
Abstract: PROBLEM TO BE SOLVED: To provide a winding bar whose maximum electric field strength at an edge region is decreased, without making the thickness of an insulator large. SOLUTION: In a winding bar 10, which is for a high-voltage winding of an electric machine especially for a stator winding, has piled-up conductors 13 whose bundle has a rectangular cross section, and is surrounded by an insulator 14 around, an electric field strength improved at edges as a whole is achieved without changing the insulator thickness. This is performed by making a thickness d2 of the insulator 14 at an edge 15 of the winding bar 10 larger than the thickness d1 of the insulator 14 at a flat surface of the winding bar 10. In this case, it is preferable that a correcting process is performed for forming the edge regions.
-
公开(公告)号：JPH11329191A
公开(公告)日：1999-11-30
申请号：JP10683299
申请日：1999-04-14
Applicant: ABB RESEARCH LTD
Inventor： ZEHNDER LUKAS DR , KALTENEGGER KURT DR , NIEMEYER LUTZ DR , SCHOENEMANN THOMAS DR , SPECKHOFER GUENTER DR
IPC: H01H33/91 , H01H33/98 , H01H33/985 , H01H39/00
Abstract: PROBLEM TO BE SOLVED: To provide a breaker in which energy exhaust, especially pinch pressure is effectively utilized spraying gas to arc. SOLUTION: Pressure chambers 25a, 25b are placed subsequently to an arc compartment 16 divided by burning rings 32a, 32b. The pressure chambers 25a, 25b are severally connected to a heating chamber 18 concentrically surrounding the arc chamber 18, through return passages 28a, 28b having a rotation symmetry to an opening and closing axis and check valves 29a, 29b. A circumferential spraying slit 19 opened toward the arc chamber 16 from a space between the burning rings 32a, 32b is extended from the heating chamber 18. The pressure chambers 25a, 25b are connected to exhaust chambers 30a, 30b through exhaust pipes 34a, 34b. A pressure rise in the pressure chamber by a pinch pressure contributes to generation of a high spraying pressure in the heating room 18 through the return passages 28a, 28b.
-
Patent Agency Ranking
公开(公告)号：JPH11223306A
公开(公告)日：1999-08-17
申请号：JP33132098
申请日：1998-11-20
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , KNOEPFEL HANS PETER , RUCK THOMAS
Abstract: PROBLEM TO BE SOLVED: To obtain excellent mixing, the minimum harmful substance emission and the maximum efficiency when low-calory fuel is used by a method wherein a second passage for guiding fuel is finished at the upstream of shifting part, whereat a tangential inflow passage is shifted into the inner chamber of a swirl generator, while retaining an interval. SOLUTION: Partial bodies 101-104 are provided with passages 121-124, guided into tangential directions respectively, while gas fuel 117 is guided through these passages. The fuel 117 is injected into tangential inflow passages 191b-104b, guiding fuel air through inflow slits 131, extending into respective axial directions. The fuel 117 is mixed into the fuel air 115 at the upstream of a shifting part, whereat the tangential inflow passages 101b-104b are shifted into the inner chamber 118, while retaining a predetermined interval. According to this method, two medium gas are pre-mixed until they are advanced into the inner chamber 118. This effect can be obtained by the constitution that the passages 121-124 are provided on the partial bodies 101-104 as guides independently.
-
公开(公告)号：JPH11211026A
公开(公告)日：1999-08-06
申请号：JP30856198
申请日：1998-10-29
Applicant: ABB RESEARCH LTD
Inventor： KNOEPFEL HANS PETER , RUCK THOMAS
Abstract: PROBLEM TO BE SOLVED: To improve the mixing quality of a gas/air mixture with a fixed pressurization of a gas. SOLUTION: This burner mainly comprises a spiral flow generator for the flow of combustion air and a means to inject at least one kind of fuel into the combustion air flow. Moreover, a mixing zone is arranged on the downstream side of the spiral flow generator. The mixing zone has a certain plurality of transfer paths inside a first mixing zone part in the direction of fluidization and the transfer paths are so arranged as to transfer a flow produced in the spiral flow generator to a mixing pipe installed after it on the downstream side of the transfer paths. A heat generator thus arranged is operated. In this case, a combustion air flow 115 flowing into the spiral flow generator runs along a turbulence generator 300, which is positioned on the upstream side of a part where a fuel is injected 116 into the combustion air flow 115.
-
公开(公告)号：JPH11195332A
公开(公告)日：1999-07-21
申请号：JP30420898
申请日：1998-10-26
Applicant: ABB RESEARCH LTD
Inventor： CHEN MAKAN DR , LAKNER MARTIN DR , PAUL WILLI DR
Abstract: PROBLEM TO BE SOLVED: To provide a ceramic high-temperature superconductor used for a current limiter on an alternating current line. SOLUTION: A ceramic high-temperature superconductor 1 has a bypass layer 2 having electrical resistance larger than decuple of that of a pure noble metal. The noble metal bypass layer 2 (preferably, silver) of the high- temperature superconductor 1 is allayed with a base metal (preferably, Pb, Bi, Ga) by heat treatment. The ratio of thickness d2 of the noble metal bypass layer to thickness d1 of the superconductor 1 is set to be less than 1/5. A steel base metal bypass layer 3 has electrical resistance between 10 μΩ×cm and 100 μΩ×cm at 77 k and it is soldered or welded with static pressure to the noble metal containing bypass layer 2. The thickness d2 of the noble metal bypass layer and a thickness d3 of the base metal bypass layer are set to be ρ2/d2>0.5×ρ3/d3. Here, the ρ2 and the ρ3 are respectively electrical risistivities of the noble metal containing bypass layer 2 and the base metal bypass layers 3, 3'.
-
公开(公告)号：JPH11122872A
公开(公告)日：1999-04-30
申请号：JP23557398
申请日：1998-08-21
Applicant: ABB RESEARCH LTD
Inventor： HESS STEPHAN , JOHO REINHARD , WOLFERSDORF JENS VON DR , ZIMMERMANN HANS
Abstract: PROBLEM TO BE SOLVED: To provide a turbogenerator which can reinforce cooling of a rotor, and simplify thermal separation in cooling of the rotor from a stator. SOLUTION: This turbogenerator 10 is provided with a rotor 11, a stator 12 which is separated from the rotor 11 with an air gap 14, by concentrically surrounding the rotor 11, and a cooling device. In the cooling device, gaseous cooling medium flowing through a cooling passage which a main fan 33 encounters is drawn into the rotor 11 and the stator 12, passed through coolers 22, 23, 24, and returned to the cooling passage. In a heating condition, the cooling medium is passed through the rotor 11 to be flowed in the axial direction, is blown off into the air gap 14, and returns from the air gap 14 to the main fan 33. By passing the cooling medium heated by the rotor 11 through a discharge passage 15 in the stator 12 from the air gap 11 to the outside in the radial direction, and returning it to the main fan 33 at the outside of the stator 12 through a cooling air return passage 21, it is possible to attain reinforced cooling of the rotor 11.
-
180.发明专利
公开(公告)号：JPH1172231A
公开(公告)日：1999-03-16
申请号：JP12754398
申请日：1998-05-11
Applicant: ABB RESEARCH LTD
Inventor： DOEBBELING KLAUS DR , REH LOTHAR , WANG YUNHOGN
Abstract: PROBLEM TO BE SOLVED: To decrease the value of NOx in case of using liquid fuel, by vaporizing the liquid fuel in a vaporizing reactor in several steps. SOLUTION: Fuel oil 38 passes through a distribution hole 33, and enters ring gaps 30, which are continuously narrowed, and which are filled with overheated steam 21, roughly vertically. Thereby, heat is transferred from the steam 21 to the fuel oil 38 remarkably, and consequently the part which already has large amount of fuel oil 38 is transformed to the gas phase. Moreover, the concerned medium is so strong that it is mixed as a mixture of fuel steam and liquid fuel 61. After that, the mixture of fuel steam and liquid fuel 61 is guided to a vaporizing passage 45 through a guide circular cone part 44. The remaining fuel oil 38 is vaporized in the vaporizing passage 45 on the basis of the indirect heat exchange with the waste gas 51 which flows through the ring passage 47 of a gasturbine 3 on the principle of convection.
-
-
-
-
-
-
-
-
-
Search Results
8803
records
(took 0.039 seconds)
