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    • 31. 发明授权
    • Puller cell
    • 拉电池
    • US5749967A
    • 1998-05-12
    • US708464
    • 1996-09-05
    • Kazuo SakauchiYoshihiro HiranoAkira Uchikawa
    • Kazuo SakauchiYoshihiro HiranoAkira Uchikawa
    • C30B15/00F24F3/16C30B35/00
    • F24F3/161C30B15/00F24F3/1607F24F11/0079Y02B30/746Y10S117/90Y10T117/10Y10T117/1004
    • A crystal puller cell (18) provides a low particulate environment for an individual crystal puller (28). The airflow within each cell is adjustable so that a particulate level appropriate to the activity within the cell is maintained, thereby avoiding the cost of maintaining an entire growing hall (10) at a constant high level of cleanliness. Each cell includes a multi-level floor (46) that includes an operator floor (48) and a maintenance floor (52). A door (62) at the maintenance floor level opens onto a maintenance aisle used to service the machines. A door (64), at the operator floor level, opens onto a clean aisle for transporting raw material and finished product. The cell walls can include magnetic shielding if a magnetic growing process is used to reduce exposure of operators and other machines to intense magnetic fields.
    • 晶体拉出单元(18)为单个晶体拉出器(28)提供低的颗粒环境。 每个细胞内的气流是可调节的,使得保持适合于细胞内的活性的微粒水平,从而避免维持整个生长大厅(10)处于恒定的高清洁度水平的成本。 每个单元包括多层地板(46),其包括操作员楼层(48)和维护楼层(52)。 维护楼层的门(62)通向用于维修机器的维护通道。 在操作员楼层的门(64)打开一个干净的通道,用于运输原材料和成品。 如果使用磁力生长过程来减少操作者和其他机器对强磁场的暴露,则电池壁可以包括磁屏蔽。
    • 32. 发明授权
    • Fuel property detecting apparatus for internal combustion engines
    • 用于内燃机的燃料特性检测装置
    • US5582157A
    • 1996-12-10
    • US530234
    • 1995-10-06
    • Akira Uchikawa
    • Akira Uchikawa
    • G01M15/04F02D19/06F02D19/08F02D41/00F02D41/06F02D41/14F02D45/00
    • F02D19/088F02D19/061F02D19/0649F02D41/0025F02D41/064F02D41/1491F02D2200/0612Y02T10/36
    • Provided is an apparatus for detecting a volatility of fuel supplied to an engine, in order to ensure a more precise acceleration dependent fuel increasing-correction during air-fuel-ratio feed-back control. When the air-fuel-ratio feed-back control begins after engine starting (S4), a determination is made as to whether the engine is in a low exhaust-temperature state on the basis of an engine coolant temperature Tw (S5). When the exhaust temperature is low, an average value .alpha..sub.av of an air-fuel-ratio feed-back correction factor .alpha. is derived (S6, S7), and then the average value .alpha..sub.av is compared with a reference value (S8). In case that the fuel supplied to the engine is a heavy-gravity fuel of a low volatility, since there are great amounts of hydrocarbons HC in exhaust gases and with a great consumption of oxygen a control point of the air-fuel-ratio feed-back control, which point can be indicated by the average value .alpha..sub.av, shifts to a leaner side. On the basis of the shift of the control point to the leaner side, during the air-fuel-ratio feed-back control, a discrimination is made as to whether the fuel supplied to the engine is a heavy-gravity fuel of a low volatility or a light-gravity fuel of a high volatility (S9, S10).
    • PCT No.PCT / JP95 / 00275 Sec。 371日期1995年10月6日 102(e)日期1995年10月6日PCT 1995年2月24日提交PCT公布。 出版物WO95 / 23284 日期1995年8月31日提供了一种用于检测供应给发动机的燃料的挥发性的装置,以便确保在空燃比反馈控制期间更加精确的加速相关燃料增加校正。 当发动机启动后开始空燃比反馈控制(S4)时,根据发动机冷却剂温度Tw(S5)确定发动机是否处于低排气温度状态。 当排气温度低时,导出空燃比反馈校正系数α的平均值αav(S6,S7),然后将平均值αav与参考值进行比较(S8)。 在供给发动机的燃料是挥发性低的重力燃料的情况下,由于在排气中存在大量的碳氢化合物HC,而且大量的氧气的消耗是空燃比进料的控制点, 返回控制,哪个点可以由平均值αav表示,转移到更瘦的一侧。 基于控制点向较瘦侧的转移,在空燃比反馈控制期间,判断供给发动机的燃料是否是低挥发性的重力燃料 或高挥发性的轻重力燃料(S9,S10)。
    • 36. 发明申请
    • Oxygen Sensor Degradation Judging Device
    • 氧传感器降解判断装置
    • US20080116071A1
    • 2008-05-22
    • US11795246
    • 2006-01-11
    • Motonori NakamuraAkira Uchikawa
    • Motonori NakamuraAkira Uchikawa
    • G01N27/26
    • G01N27/4175
    • This device is a degradation judging device for an oxygen sensor having a reference electrode 23 and a measuring electrode 22, both of which hold a solid electrolyte layer therebetween, and measuring oxygen concentrations based on an electromotive force that occurs in accordance with a difference between an oxygen partial pressure of the reference electrode 23 and an oxygen partial pressure of the measuring electrode 22. A control unit 10, which controls operations of intake and exhaust valves, a spark plug and a fuel injection valve, has a degradation judging means that detects an internal resistance value “R1” of the solid electrolyte layer 21 by applying a high-frequency alternating current between the reference electrode 23 and the measuring electrode 22, and judges degradation of the solid electrolyte layer 21 by comparing an average value of the detected internal resistance value “R1” with a reference value. By this judgment, the degradation of the solid electrolyte layer 21 can accurately be judged, and an occurrence of the engine stall or emission failure can be prevented.
    • 该装置是具有参考电极23和测量电极22的氧传感器的劣化判定装置,两者都在其间保持固体电解质层,并且基于根据电流的差异发生的电动势来测量氧浓度 参考电极23的氧分压和测量电极22的氧分压。 控制单元10,其控制进气门和排气门的操作,火花塞和燃料喷射阀,具有劣化判定装置,其通过施加高频来检测固体电解质层21的内部电阻值“R 1” 通过将检测出的内部电阻值“R 1”的平均值与参考值进行比较来判断固体电解质层21的劣化,从而判断参考电极23与测量电极22之间的交流电流。 通过这种判断,可以准确地判断固体电解质层21的劣化,能够防止发动机失速或发光故障的发生。
    • 38. 发明授权
    • Method and apparatus for diagnosing an abnormality in a wide range
air-fuel ratio sensor
    • 用于诊断大范围空燃比传感器的异常的方法和装置
    • US5970967A
    • 1999-10-26
    • US987098
    • 1997-12-08
    • Akira Uchikawa
    • Akira Uchikawa
    • F02D45/00F02D41/04F02D41/14F02D41/22
    • F02D41/222Y02T10/40
    • An object is to carry out abnormality diagnosis of a wide range air-fuel ratio sensor to a high accuracy, with a relatively simple construction. Judgment is made as to whether abnormality diagnosis permit conditions have materialized, and if materialized, a detection value of an air-fuel ratio sensor is monitored. It is then judged if the responsiveness of a change in the detection value of the air-fuel ratio sensor subsequent to changing a target air-fuel ratio is within a predetermined range. If so, an OK judgment is given. If not, an NG judgment is given and a warning lamp is illuminated to advise the driver of the abnormality in the air-fuel ratio sensor so as to take action. With this arrangement, abnormality diagnosis of a wide range air-fuel ratio sensor can be carried out to a high accuracy with a relatively simple construction.
    • 目的是以较为简单的结构高精度地进行宽范围的空燃比传感器的异常诊断。 判断异常诊断许可条件是否已经实现,如果实现,则监视空燃比传感器的检测值。 然后判断在改变目标空燃比之后空燃比传感器的检测值的变化的响应性是否在预定范围内。 如果是的话,给出一个OK的判断。 如果没有,则给出NG判断,并且点亮警告灯以向驾驶员通知空燃比传感器中的异常以便采取行动。 利用这种结构,能够以相对简单的结构高精度地进行宽范围的空燃比传感器的异常诊断。