公开(公告)号：US4917866A

公开(公告)日：1990-04-17

申请号：US269339

申请日：1988-11-10

申请人： Susumu Abe ,  Tadayoshi Ikai ,  Masahiro Ogawa

发明人： Susumu Abe ,  Tadayoshi Ikai ,  Masahiro Ogawa

IPC分类号： C01B31/36 ,  C30B29/62 ,  D01F9/08

CPC分类号： B82Y30/00 ,  C01B31/36 ,  C01P2004/10 ,  C01P2004/64

摘要： A process for producing silicon carbide short fibers comprises oxidizing metallic silicon powder in an oxidizing gas atmosphere into silicon monoxide in the form of ultrafine particles or gas, and carbonizing said silicon monoxide in a reducing gas atmosphere containing carbon at temperatures being lower than temperatures for producing powder and falling in a temperature range for causing a heterogenous core formation of silicon carbide, thereby producing silicon carbide short fibers. The process of the present invention is capable of mass-producing silicon carbide short fibers continuously in a short time.

摘要翻译： 一种生产碳化硅短纤维的方法包括将氧化气体气氛中的金属硅粉末以超细颗粒或气体的形式氧化成一氧化硅，并且在低于生产温度的温度下在含有碳的还原气氛中碳化所述一氧化硅 粉末并在用于引起碳化硅的异质芯形成的温度范围内下降，由此制造碳化硅短纤维。 本发明的方法能够在短时间内连续地大量生产碳化硅短纤维。

公开(公告)号：US4712419A

公开(公告)日：1987-12-15

申请号：US862718

申请日：1986-05-13

申请人： Tadayoshi Ikai ,  Takashi Kamo

发明人： Tadayoshi Ikai ,  Takashi Kamo

IPC分类号： F01N9/00 ,  F02D41/14 ,  G01M15/00 ,  G01N27/407 ,  G01N27/417

CPC分类号： G01N27/417

摘要： An air/fuel ratio detector constructed of first and second elements positioned such that the gap between the closed end of the second element constructing the limit current type oxygen sensor and the end of a tubular heater is closed or such that the one of electrodes formed on the second element and located on the side contacting the exhaust gas is made of a material having no catalytic capability to purify the exhaust gas. As a result, the second element does not constitute a concentration cell so that the output characteristics obtainable are ideal from the rich to lean range of the air-fuel ratio.

摘要翻译： 由第一元件和第二元件构成的空气/燃料比检测器被定位成使得构成极限电流型氧传感器的第二元件的封闭端与管状加热器的端部之间的间隙闭合，或者使得形成在 位于与废气接触的一侧的第二元件由不具有净化废气的催化能力的材料制成。 结果，第二元件不构成浓缩电池，使得从空燃比的丰富到稀薄范围可获得的输出特性是理想的。

公开(公告)号：US4574627A

公开(公告)日：1986-03-11

申请号：US576957

申请日：1984-02-03

申请人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

发明人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

IPC分类号： G01N27/41 ,  F02D35/00 ,  F02D41/14 ,  G01M15/00 ,  G01N27/409 ,  G01N27/416 ,  G01N27/417

CPC分类号： G01N27/417

摘要： An air-fuel ratio detector and an air-fuel ratio measuring method for detecting an oxygen density in an exhaust gas emitted from the internal combustion engine of an automobile. The air-fuel ratio detector has a tubular body and a pair of partition members dividing the tubular body into a closed-end section and an open-end section. At least one of the partition members comprises a solid electrolyte permeable to oxygen ions. A pair of electrodes is mounted on opposite surfaces of the solid electrolyte and connected to a DC power supply, thus constituting an oxygen pump. Another pair of electrodes is mounted on one of the partition members and connected to a DC power supply, thus constituting a limited-current oxygen sensor. Oxygen is introduced into a space between the partition members at all times by the oxygen pump to maintain the gas, which has been supplied through a gas dispersion member into the space, lean.

摘要翻译： 一种空燃比检测器和用于检测从汽车的内燃机排出的废气中的氧浓度的空燃比测定方法。 空燃比检测器具有管状体和将管状体分成封闭端部和开口端部的一对分隔构件。 至少一个分隔构件包括可渗透氧离子的固体电解质。 一对电极安装在固体电解质的相对表面上并连接到直流电源，从而构成氧气泵。 另一对电极安装在一个分隔构件上并连接到直流电源，从而构成有限电流的氧传感器。 氧气始终通过氧气泵引入分隔构件之间的空间中，以将通过气体分散构件供应的气体维持在空间中。

公开(公告)号：US4570479A

公开(公告)日：1986-02-18

申请号：US576955

申请日：1984-02-03

申请人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

发明人： Shigenori Sakurai ,  Takashi Kamo ,  Tadayoshi Ikai

IPC分类号： G01N27/419 ,  F02D35/00 ,  F02D41/14 ,  G01M15/00 ,  G01N27/407 ,  G01N27/409 ,  G01N27/417

CPC分类号： G01N27/417

摘要： A detector and a measuring method for detecting an air-fuel ratio in an internal combustion engine or the like. The detector has a tubular body having a closed end, a solid electrolyte permeable to oxygen ions which divides the interior of the tubular body into a closed-end section and an open-end section, and electrodes mounted on opposite surfaces of the solid electrolyte. One pair of the electrodes on the opposite surfaces of the solid electrolyte is connected to a circuit for detecting an electromotive force, thus constituting an oxygen sensor. The other electrode pair is connected to a DC power supply, thus constituting an oxygen pump. The oxygen sensor detects the quantity of oxygen in a gas supplied through a gas dispersion member. The direction of flow and magnitude of and electric current in the oxygen pump are controlled on the basis of an output from the oxygen sensor for enabling the gas to have a stoichiometric air-fuel ratio.

摘要翻译： 用于检测内燃机等中的空燃比的检测器和测量方法。 检测器具有封闭端的管状体，可氧化离子的固体电解质，其将管状体的内部分成封闭端部分和开放端部分，以及安装在固体电解质的相对表面上的电极。 在固体电解质的相对表面上的一对电极连接到用于检测电动势的电路，从而构成氧传感器。 另一个电极对连接到直流电源，从而构成氧气泵。 氧气传感器检测通过气体分散构件供给的气体中的氧气的量。 基于来自氧传感器的输出来控制氧泵中的流量和电流的大小和电流的方向，以使气体具有理论空燃比。