公开(公告)号：US4892436A

公开(公告)日：1990-01-09

申请号：US172378

申请日：1988-03-24

申请人： Takeyuki Mizuno ,  Seiichi Asami

发明人： Takeyuki Mizuno ,  Seiichi Asami

IPC分类号： F01D5/04 ,  C04B37/02 ,  F01D5/02 ,  F16B1/00 ,  F16B4/00 ,  F16D1/064

CPC分类号： F16D1/064 ,  C04B35/645 ,  C04B37/021 ,  F01D5/025 ,  F16B4/004 ,  C04B2237/32 ,  C04B2237/36 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/40 ,  C04B2237/76 ,  C04B2237/84 ,  F16B2001/0085 ,  Y10T403/21 ,  Y10T403/74

摘要： In a shaft composite structure wherein a ceramic shaft integrally formed with a ceramic turbine rotor is fixed to a metal sleeve integrally formed with a metal rotary shaft of a compressor impeller, a connection edge is located at a position corresponding to a recess for seal ring, and a thickness of tip portion of the metal sleeve is made thin to reduce a stiffness.Therefore, a stress concentration at the connection edge can be eliminated effectively and thus a reliable shaft composite structure can be obtained.

摘要翻译： 在其中与陶瓷涡轮转子一体形成的陶瓷轴固定在与压缩机叶轮的金属旋转轴一体形成的金属套筒上的轴复合结构中，连接边缘位于与密封环的凹部相对应的位置， 并且金属套筒的尖端部分的厚度变薄以减小刚度。 因此，可以有效地消除连接边缘处的应力集中，从而可以获得可靠的轴复合结构。

公开(公告)号：US5169297A

公开(公告)日：1992-12-08

申请号：US533391

申请日：1990-06-05

申请人： Takeyuki Mizuno ,  Hiroyuki Kawase ,  Seiichi Asami ,  Kenji Adachi

发明人： Takeyuki Mizuno ,  Hiroyuki Kawase ,  Seiichi Asami ,  Kenji Adachi

IPC分类号： F01D5/04 ,  F01D5/02 ,  F02B39/00 ,  F04D29/28

CPC分类号： F01D5/025 ,  F04D29/284

摘要： A ceramic turbo charger rotor having a bearing structure in which an inner race of an angular ball bearing and a spacer are assembled to a journal shaft as one unit in such a manner that one end of the spacer is assembled to a turbine-side connecting portion of the journal shaft by a pressure inserting manner and the other end of the spacer is assembled to a compressor-side connecting portion of the journal shaft by a clearance fitting manner. Therefore, the deviation between a center axis and a rotational axis of the rotor caused by the pressure insertion of the spacer is released at the compressor side and the amount of the unbalance before correcting of the rotor is remarkably reduced.

公开(公告)号：US4856472A

公开(公告)日：1989-08-15

申请号：US199160

申请日：1988-05-26

申请人： Akinori Wakasa ,  Minoru Machida ,  Yasuhiro Miyakawa ,  Seiichi Asami

发明人： Akinori Wakasa ,  Minoru Machida ,  Yasuhiro Miyakawa ,  Seiichi Asami

IPC分类号： F02B19/16

CPC分类号： F02B19/165 ,  Y02T10/125

摘要： A cylinder head has a ceramic precombustion chamber for an internal combustion engine. The cylinder head includes a part of the cylinder head made of a ceramic body having an injection aperture communicating with a main combustion chamber for jetting burning gases therethrough, a metal sleeve fitted on an outer circumference of the ceramic body and fitted in a precombustion chamber insert bore forming part of the cylinder head, and a head gasket interposed between the cylinder block forming the main combustion chamber and the ceramic body, the metal sleeve and the cylinder head. A surface of the ceramic body facing to the head gasket extends onto a side of the main combustion chamber beyond a surface of the ceramic body opening the injection aperture into the main combustion chamber.

摘要翻译： 气缸盖具有用于内燃机的陶瓷预燃室。 气缸盖包括由具有与用于喷射燃烧气体的主燃烧室连通的喷射孔的陶瓷体的一部分，金属套筒安装在陶瓷体的外周上并且装配在预燃室插入件 形成气缸盖的一部分的孔，以及插入形成主燃烧室的气缸体与陶瓷体，金属套筒和气缸盖之间的头垫片。 面向头垫片的陶瓷体的表面延伸到主燃烧室的超过陶瓷体的表面，该表面将喷射孔打开进入主燃烧室。

公开(公告)号：US4767731A

公开(公告)日：1988-08-30

申请号：US886365

申请日：1986-07-17

申请人： Seiichi Asami ,  Toshiyuki Hamanaka ,  Takashi Harada

发明人： Seiichi Asami ,  Toshiyuki Hamanaka ,  Takashi Harada

IPC分类号： C04B35/18 ,  C04B35/46 ,  C04B35/478 ,  C04B35/10

CPC分类号： C04B35/478 ,  C04B35/18

摘要： A sintered aluminum titanate-mullite base ceramic having a chemical composition of not more than 0.8% of MgO, from 53 to 74% of Al.sub.2 O.sub.3, from 14 to 33% of TiO.sub.2, from 1.2 to 5% of Fe.sub.2 O.sub.3, from 6 to 20% of SiO.sub.2, and not more than 0.3% of (CaO+Na.sub.2 O+K.sub.2 O), and an amount of glass in mullite base matrices of the sintered body being not more than 5% when measured at a section of the sintered body. This aluminum titanate-mullite base ceramic is obtained by compounding from 40 to 65% of a starting material of aluminum titanate essentially consisting of from 45 to 62% of Al.sub.2 O.sub.3, from 34 to 50% of TiO.sub.2, from 3 to 7% of Fe.sub.2 O.sub.3, not more than 1% of SiO.sub.2 and not more than 0.3% of (CaO+Na.sub.2 O+K.sub.2 O) with from 35 to 60% of a starting material of mullite essentially consisting of from 18 to 32% of SiO.sub.2, from 68 to 82% of Al.sub.2 O.sub.3, and not more than 0.85% of (Fe.sub.2 O.sub.3 +TiO.sub.2 +CaO+MgO+Na.sub.2 O+K.sub.2 O), at least one of said aluminum titanate starting material and said mullite starting material being fired, and molding a resulting mixture, and firing a thus obtained molding at from 1,550.degree. to 1,700.degree. C. in an oxidizing atmosphere. The alumina titanate starting material may contain not more than 0.1% of MgO.

摘要翻译： 一种烧结的钛酸铝莫来石基陶瓷，其化学组成不超过MgO的0.8％，Al 2 O 3的53至74％，TiO 2的14至33％，Fe 2 O 3的1.2至5％，6至20％ 的SiO 2和不超过0.3％的（CaO + Na 2 O + K 2 O），并且当在烧结体的截面处测量时，烧结体的莫来石基体中的玻璃的量不超过5％。 这种钛酸铝 - 莫来石基陶瓷是通过将基本上由45％至62％的Al 2 O 3，34％至50％的TiO 2，3至7％的Fe 2 O 3组成的钛酸铝原料的40至65％ 不大于1％的SiO 2和不超过0.3％的（CaO + Na 2 O + K 2 O），其中35至60％的莫来石原料主要由18至32％的SiO 2，68至82％的 Al 2 O 3和0.85％以下的（Fe 2 O 3 + TiO 2 + CaO + MgO + Na 2 O + K 2 O），所述钛酸铝原料和所述莫来石原料中的至少一种被烧成， 在氧化气氛中在1550℃至1700℃下进行模塑。 钛酸铝原料可含有不超过0.1％的MgO。

公开(公告)号：US5089449A

公开(公告)日：1992-02-18

申请号：US486922

申请日：1990-03-01

申请人： Shinichi Miwa ,  Seiichi Asami ,  Takehiro Kajihara ,  Kouichi Imao

发明人： Shinichi Miwa ,  Seiichi Asami ,  Takehiro Kajihara ,  Kouichi Imao

IPC分类号： C04B35/584

CPC分类号： C04B35/584

摘要： Silicon nitride sintered bodies including Si.sub.3 N.sub.4 and at least one element selected from Y.sub.2 O.sub.3, MgO, ZrO.sub.2. In the silicon nitride bodies, a J phase solid solution is present in an intergranular phase, which satisfies a relation of 0.65x.ltoreq.y.ltoreq.x+2 wherein y is an amount of J phase solid solution and x is an amount of Y.sub.2 O.sub.3 as an additive.

摘要翻译： 包括Si 3 N 4和选自Y 2 O 3，MgO，ZrO 2中的至少一种元素的氮化硅烧结体。 在氮化硅体中，J相固溶体存在于晶间相中，其满足0.65x≤y≤x+ 2的关系，其中y是J相固溶体的量，x是量 的Y2O3作为添加剂。

公开(公告)号：US4869944A

公开(公告)日：1989-09-26

申请号：US151995

申请日：1988-02-03

申请人： Takashi Harada ,  Toshiyuki Hamanaka ,  Kunikazu Hamaguchi ,  Seiichi Asami

发明人： Takashi Harada ,  Toshiyuki Hamanaka ,  Kunikazu Hamaguchi ,  Seiichi Asami

IPC分类号： B01J21/14 ,  C04B35/195 ,  C04B38/00

CPC分类号： C04B38/0006 ,  B01J21/14 ,  C04B35/195 ,  Y10T428/24149 ,  Y10T428/24744

摘要： A cordierite honeycomb structural body to be used as a catalyst carrier, having excellent heat resistance, thermal shock resistance and coatability with a high specific surface area material and a catalyst is disclosed, which have a chemical composition consisting mainly of 42-56% by weight SiO.sub.2, 30-45% by weight of Al.sub.2 O.sub.3 and 12-16% by weight of MgO, having a crystal phase consisting mainly of cordierite, and having coefficients of thermal expansion of not higher than 0.3.times.10.sup.-6 /.degree.C. in the flow-passage direction of the honeycomb structure and not higher than 0.5.times.10.sup.-6 /.degree.C. in a direction perpendicular to the flow-passage of the honeycomb structure within the temperature range of 40.degree.-800.degree. C. A cordierite honeycomb-structural body, wherein a distribution of diameters of pores, relative to a total volume of pores having a diameter of 0.5-5 .mu.m is not less than 40% and the total volume of pores having a diameter of not smaller than 10 .mu.m is not more than 30% based on the total pore volume in the body. The body has excellent coatability and thermal shock resistance after coating.

公开(公告)号：US4851376A

公开(公告)日：1989-07-25

申请号：US22134

申请日：1987-03-05

申请人： Seiichi Asami ,  Toshiyuki Hamanaka

发明人： Seiichi Asami ,  Toshiyuki Hamanaka

IPC分类号： C04B35/195

CPC分类号： C04B35/195

摘要： A process for producing a cordierite ceramic body by using a reclaimed cordierite composition for a cordierite ceramic article which has a composition similar to that of the cordierite ceramic body. The process includes the steps of: forming a desired formed body under a pressure by using a starting material which includes the recovered reclaimed cordierite composition, or a mixture of the reclaimed cordierite composition and a fresh cordierite composition; firing the formed body at a temperature between 1280.degree.-1330.degree. C. into a sample of the cordierite ceramic body; measuring a reaction ratio (R) between the amount of protoenstatite and cordierite crystals present in the sample; and formulating the starting material so that the reaction ratio (R) is 0.3 or less.

摘要翻译： 通过使用具有与堇青石陶瓷体相似的组成的堇青石陶瓷制品的回收堇青石组合物来生产堇青石陶瓷体的方法。 该方法包括以下步骤：通过使用包含回收的再生堇青石组合物的原料或再生堇青石组合物和新鲜堇青石组合物的混合物在压力下形成所需的成形体; 将成形体在1280°-1330℃的温度下焙烧成堇青石陶瓷体的样品; 测量样品中存在的原铁矿石和堇青石晶体的量之间的反应比（R） 并配制原料，使反应比（R）为0.3以下。

公开(公告)号：US4279849A

公开(公告)日：1981-07-21

申请号：US112325

申请日：1980-01-15

申请人： Yutaka Ogawa ,  Toshio Takehara ,  Seiichi Asami

发明人： Yutaka Ogawa ,  Toshio Takehara ,  Seiichi Asami

IPC分类号： B01J21/12 ,  C04B35/195 ,  C04B35/632 ,  C04B35/634 ,  C04B35/636 ,  C04B38/06 ,  C04B35/64

CPC分类号： C04B35/636 ,  C04B35/195 ,  C04B35/634

摘要： Cordierite ceramic honeycomb structural bodies having a high thermal shock resistance and a high water absorption are produced by adding the defined amount of starch powder, a binder and water to a ceramic starting material to crystallize cordierite upon firing.

摘要翻译： 通过将规定量的淀粉粉末，粘合剂和水添加到陶瓷起始材料中以在焙烧时使堇青石结晶，从而产生具有高耐热冲击性和高吸水性的堇青石陶瓷蜂窝结构体。

公开(公告)号：US5194201A

公开(公告)日：1993-03-16

申请号：US747439

申请日：1991-08-14

申请人： Shinichi Miwa ,  Seiichi Asami ,  Takehiro Kajihara

发明人： Shinichi Miwa ,  Seiichi Asami ,  Takehiro Kajihara

IPC分类号： C04B35/584 ,  C04B35/58

CPC分类号： C04B35/584

摘要： A method of manufacturing silicon nitride sintered bodies comprising the steps of preparing a powder consisting essentially of 100 parts by weight of silicon nitride, 2.about.15 parts by weight of a rare earth element, 0.5.about.15 parts by weight of a Zr compound and 0.3.about.5 parts by weight of SiC, molding the thus prepared powder and firing the resulting molding.

摘要翻译： 一种制造氮化硅烧结体的方法，包括以下步骤：制备基本上由100重量份氮化硅，2重量份稀土元素，0.5重量份Zr化合物和0.3重量份Zr化合物组成的粉末 差异为5重量份的SiC，模制如此制备的粉末并烧制所得的模制品。

公开(公告)号：US5185110A

公开(公告)日：1993-02-09

申请号：US675805

申请日：1991-03-27

申请人： Kunikazu Hamaguchi ,  Kazuhiko Kumazawa ,  Seiichi Asami

发明人： Kunikazu Hamaguchi ,  Kazuhiko Kumazawa ,  Seiichi Asami

IPC分类号： F01N3/02 ,  B01D39/20 ,  C04B35/195 ,  C04B38/00 ,  F01N3/022

CPC分类号： B01D39/2075 ,  C04B35/195 ,  C04B38/0006 ,  F01N3/0222 ,  C04B2111/00793 ,  F01N2330/06 ,  Y02T10/20

摘要： A method of producing a porous ceramic filter, using a cordierite precursor or starting composition including a talc powder component and a silica powder component, such that particles of the talc powder component and the silica powder component whose size is not less than 150 .mu.m constitute not more than 3% by weight of the starting composition, while particles of the talc and silica powder components whose size is not more than 45 .mu.m constitute not more than 25% by weight of the starting composition. A green body for the porous ceramic honeycomb filter formed of this starting composition is fired to react the starting composition to form cordierite and produce the desired porous ceramic honeycomb filter.