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公开(公告)号:JPH09170729A
公开(公告)日:1997-06-30
申请号:JP31189796
申请日:1996-11-22
Applicant: ABB RESEARCH LTD
Inventor: KURAUSU DETSUBERINGU , ADONAN EROGURU , PIITAA SHINIA
Abstract: PROBLEM TO BE SOLVED: To make it possible to perform extremely low NOx emission by improving a premixing burner, to densely mix combustion air and fuel in an extremely short section by incorporating a simple geometrical shape and effective motion behavior in a burner, to perform the uniform speed distribution in a mixing area, and to effectively prevent the back fire of a flame without using a mechanical flame stabilizer. SOLUTION: To burn gaseous and/or liquid-like fuel, the premixing burner comprises a vortex generator 9 for generating vortex for allowing residual vortex to retain in fuel/air mixed flow after the air and fuel are completely mixed, an annular main fluid passage 20 formed of a passage wall with a constant height and having a length of a range of 5 to 20 times as large as the height at the downstream side of the generator 9 and fuel injection means and enlarged by the closure of the inner cylinder wall 21a to form a circular main fluid passage.
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公开(公告)号:JPH0914635A
公开(公告)日:1997-01-17
申请号:JP15988096
申请日:1996-06-20
Applicant: ABB RESEARCH LTD
Inventor: HANSU PEETAA KUNEPUFUERU , PIITAA SHINIA
Abstract: PROBLEM TO BE SOLVED: To achieve operation of a diffuser having no part body and to reduce incurring of a pressure loss to a cross section expansion part. SOLUTION: This ring combustion chamber 1 comprises a plenum 7 to receive mainly a compressor air flow, at least a single burner 100 arranged in the plenum 7, a combustion space 122 connected to the rear of the plenum 7, and passages 2 and 3 with which the combustion space 122 is surrounded and which is opened in a plenum 7 and guides cooling air. In the ring combustion chamber 1, injector systems 8 and 9 are arranged in a range within which the passages 2 and 3 to guide cooling air are opened to the plenum 7. Each of the injector systems 8 and 9 comprises a flow passage as the extensions of the passages 2 and 3 to guide cooling air, and an opening arranged in the peripheral direction of the flow passage. Acceleration air 5 flowing through the opening flows in a cooling air flow.
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133.
公开(公告)号:JPH0910919A
公开(公告)日:1997-01-14
申请号:JP15256796
申请日:1996-06-13
Applicant: ABB RESEARCH LTD
Inventor: EDOBUARUDO ERU KATSUTSU , MAKUSHIMU KONTAA , YOOAHIMU RESURAA , URADEIMIRU PE RUBENETSUTSU
Abstract: PROBLEM TO BE SOLVED: To manufacture a casting free from flex and slivers by additionally cooling a casting die below a buffle by the gas flow from the outside. SOLUTION: A casting die 12 is open at the upper end, and filled with the molten alloy 15 through a filling device 14 guided from a crucible 6 to a heating chamber 4. The alloy is kept at the temperature higher than the melting temperature by a heating element in the heating chamber 4. The molten alloy 15 in the casting die 12 is guided from the heating chamber 4 into a cooling chamber 5 partitioned by a buffle 3 provided with openings. A casting 20 is manufacture in a vacuum chamber 2 by the directional solidification. The casting die 12 is cooled from the outside using the gas flow 9 through a nozzle 8 in the cooling chamber 5 below the buffle 3. The casting can be actually formed without any splitter even when the structure is complicated.
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公开(公告)号:JPH08296820A
公开(公告)日:1996-11-12
申请号:JP10155896
申请日:1996-04-23
Applicant: ABB RESEARCH LTD
Abstract: PROBLEM TO BE SOLVED: To freely alter a flow field located behind a spiral generator, and minimize NOx emission without wetting a flowing-down wall surrounding the spiral flow generator by a spray of a liquid fuel. SOLUTION: A burner is adapted for a heat producer such that it includes a combustion air spiral flow producer, a mixing tube that is operationally connected with the spiral flow producer, and means for spraying a fuel. The spiral flow producer has a shape at least partially hollow conical tapered shape in a flow direction, and has openings 6, 7 opening tangentially viewed in the flow direction for forcing combustion air 5 to penetrate into the mixing tube 2 from the hollow chamber.
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公开(公告)号:JPH08296590A
公开(公告)日:1996-11-12
申请号:JP8860496
申请日:1996-04-10
Applicant: ABB RESEARCH LTD
Inventor: URUSU BOOTOMAA , PATORITSUKU HAIN , BUISHIYARU MARITSUKU
Abstract: PROBLEM TO BE SOLVED: To provide a compressor suitable for relatively high operating temperature in spite of having a compressor impeller produced from plastic. SOLUTION: A hub 2 is produced from thermoplastic reinforced with fiber, and rotating blades 5 are separately produced from thermoplastic reinforced with filament and connected to the hub 2, with a connection part fitted to the hub 2.
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公开(公告)号:JPH08261417A
公开(公告)日:1996-10-11
申请号:JP4514896
申请日:1996-03-01
Applicant: ABB RESEARCH LTD
Inventor: KURAUSU DETSUBERINGU , HANSU PEETAA KUNEPUFUERU , PIITAA SUIINIYAA , KURISUTEIAN SHIYUTAINBATSUHA
Abstract: PROBLEM TO BE SOLVED: To reduce the emission of polluting components of liquid fuel or gaseous fuel by arranging a gasifying section extending to the burner front of a mixture burner under a nozzle and coupling the nozzle which feeds the liquid or gaseous fuel with a vortex generator. SOLUTION: At least, one fuel nozzle 12 is arranged inside a through flow path in the operation of a mixture burner 12 with liquid fuel 12a. In the direct upstream of the fuel nozzle 12, at least another vortex generator 4 is arranged. In the down stream of the atomization of the liquid fuel 12a by the synergy of the fuel nozzle 12 and the vortex generator 4, a gasifying section 6 having an enough length is arranged and the gasification of the liquid fuel is completed before the liquid fuel reaches a burner front 9. In the operation with gaseous fuel 5a, the mixture burner 1 is supplemented by a series of blowing-in lances in the downstream of the vortex generator 4 arranged in the direction of circumference and around the inner wall of the cross section of the through flow.
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公开(公告)号:JPH08191003A
公开(公告)日:1996-07-23
申请号:JP19547895
申请日:1995-07-31
Applicant: ABB RESEARCH LTD
Inventor: RUCHIKA ROITOTSURU , REOPORUTO RITSUTSUERU , RARUFU SHIYUTORIYUMUPURAA
Abstract: PROBLEM TO BE SOLVED: To obtain a method for producing a PTC resistor exhibiting low resistivity and high current conductivity at a high temperature. SOLUTION: A polymer is admixed with a filler composed of a material having high electric conductivity and a resistor is made of the mixture. A substance having high glass transition point, melting point or crosslinking point, where PTC transition takes place only at 140 deg.C or above, is selected as the polymer. An oxidation resistant substance harder than carbon black or silver is selected as the filler. The filler is stocked in a low pressure or a nonoxidative atmosphere, especially in a protective gas atmosphere, and/or fused chemically before being mixed. Improvement in the properties of a PTC resistor thus produced can be achieved when the polymer is hardened or annealed in at least two temperature stages of the process for molding the resistor body part W.
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公开(公告)号:JPH0842824A
公开(公告)日:1996-02-16
申请号:JP17646995
申请日:1995-07-12
Applicant: ABB RESEARCH LTD
Inventor: FURANTSU YOOSU , TEINOOMARUCHIN MAARINGU , PIITAA SHIINIA
Abstract: PROBLEM TO BE SOLVED: To raise the lean stability limit of gas flame while enlarging the regulation range of a burner without impairing atomization of liquid fuel by controlling inflow rate of blast air into the inner burner space. SOLUTION: During operation with gas fuel, pilot gas 9 is introduced through the opening 18 of a pilot gas passage 13 into blast air 5 in an air blast nozzle 2. The pilot gas 9 is mixed with the blast air 5 thereat and supply flow of the blast air 5 is throttled. Immediately after flowing into the inner burner space 16, the mixture 23 of pilot gas and air is further mixed with the blast air 5 fed through an inner air passage 11. When the blast air 5 is throttled in such a manner, combustion gas is enriched as desired and the pilot gas 9 is mixed with the blast air 5 earlier in order to suppress adverse effect of the air flow onto the gas flame. According to the method, flame is stabilized and the lean extinction limit is improved during pilot gas operation without missing the possibility of fuel atomization.
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公开(公告)号:JPH07164196A
公开(公告)日:1995-06-27
申请号:JP15129694
申请日:1994-07-01
Applicant: ABB RESEARCH LTD
Inventor: RAINHARUTO FURIITO
IPC: B30B11/00 , B22F3/10 , B22F3/12 , B22F3/22 , B28B3/02 , B30B11/02 , C04B35/00 , C04B35/101 , C04B35/14 , C04B35/622 , C04B35/64 , F27D5/00
Abstract: PURPOSE: To produce a setter which surely supports an unwrought article to be carried during a sintering stage by imparting a behavior to adapt itself to the shrinkage behaviors of the unwrought article to be sintered and to shrink at the same degree as the shrinkage degree of the unwrought article to the unwrought article. CONSTITUTION: This process is for production of the setter which surely supports the unwrought article carried therein during the sintering stage. This setter is produced from powder material containing a binder by the ensuing stages. a) The powder material is packed into a green mold; b) the powder material is press molded in the closed green mold to form a green compact; c) the press molded green compact is taken out of the green mold; d) the green compact is presintered to form an unfinished item and 1) this unfinished item is subjected to machining to form finished goods. Since the unwrought article to be sintered consists of the material having the different shrinkage behaviors, the production parameters of this time are changed to be individually adapted to the respective unwrought articles to be sintered. As a result, the free use of the setters having a wide range of co-shrinkability adaptable to the respective fields of use is made possible and the setter for surely supporting the unwrought article is produced.
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公开(公告)号:JP5985650B2
公开(公告)日:2016-09-06
申请号:JP2014541578
申请日:2012-09-18
Applicant: アーベーベー・リサーチ・リミテッド , ABB RESEARCH LTD.
Inventor: ビイェークルンド、アンデルス , サーレン、フレデリク , ヒルバーグ、アンリク
CPC classification number: H01B7/0241 , B32B27/08 , B32B27/18 , H01B3/301 , H01B3/302 , H01B3/305 , H01B3/306 , H01B3/40 , H01B3/421 , H01B7/2813 , B32B2307/206 , B32B2457/00 , Y10T428/24967 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/31511 , Y10T428/31533 , Y10T428/31562 , Y10T428/31565 , Y10T428/31609 , Y10T428/31721 , Y10T428/31736
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