公开(公告)号：US4222026A

公开(公告)日：1980-09-09

申请号：US5426

申请日：1979-01-22

申请人： Elmer T. Heiney, III ,  Stanley R. Merchant ,  Wells L. Green

发明人： Elmer T. Heiney, III ,  Stanley R. Merchant ,  Wells L. Green

IPC分类号： G01N27/12 ,  G01N33/00 ,  H01L7/00

CPC分类号： G01N27/12 ,  G01N33/0031

摘要： An improved exhaust gas sensor of the type having first and second titania ceramic elements which have electrical resistances varying as a function of both the temperature and the composition of exhaust gases from internal combustion engines to which the elements are exposed. The first and second titania elements are connected in series circuit in the utilization of the sensor and the resistance of the second element over the operating temperature range of the exhaust gas sensor compensates the signal of the first titania element in a manner that produces a desired signal. The desired signal is a result of variation of the second titania element resistance values when exhaust gases cycle between lean-mixture and rich-mixture compositions. The resistance values of the second titania element are intermediate the corresponding resistances of the first titania element over the temperature range.The second titania element is more dense than the first titania element. It has a density in the range from 3.2 g/cm.sup.3 to 3.8 g/cm.sup.3, i.e., between about 76% and 90% of theoretical density.

摘要翻译： 一种改进的具有第一和第二二氧化钛陶瓷元件的废气传感器，其具有随着元件暴露于内燃机的废气的温度和组成的变化而变化的电阻。 第一和第二二氧化钛元件在传感器的利用中串联连接，并且第二元件在废气传感器的工作温度范围内的电阻以产生期望信号的方式补偿第一二氧化钛元件的信号 。 期望的信号是当废气在稀混合物和富混合物组合物之间循环时第二二氧化钛元件电阻值的变化的结果。 第二二氧化钛元件的电阻值在第一二氧化钛元件的温度范围内的相应电阻之间。 第二个二氧化钛元素比第一个二氧化钛元素更致密。 其密度在3.2g / cm 3至3.8g / cm 3的范围内，即理论密度的约76％至90％之间。

公开(公告)号：US5364011A

公开(公告)日：1994-11-15

申请号：US223569

申请日：1994-04-06

申请人： Jay D. Baker ,  Myron Lemecha ,  Richard K. McMillan, II ,  Kenneth A. Salisbury ,  Paul E. Stevenson ,  Thomas B. Merala ,  Wells L. Green ,  Matti Mikkor ,  Bernard A. Meyer

发明人： Jay D. Baker ,  Myron Lemecha ,  Richard K. McMillan, II ,  Kenneth A. Salisbury ,  Paul E. Stevenson ,  Thomas B. Merala ,  Wells L. Green ,  Matti Mikkor ,  Bernard A. Meyer

IPC分类号： H05K3/34 ,  B23K1/012 ,  B23K3/06 ,  B23K3/00

CPC分类号： B23K1/012 ,  B23K3/0623 ,  B23K2201/40 ,  H05K3/3457

摘要： A micro soldering apparatus and method comprising a system (10) for attaching an electronic component (12) to a substrate (14). The system (10) comprises a soldering tool (16) including a dispensing orifice assembly (18) for pulsatingly dispensing a controlled quantity of molten solder (19) to a component (12) and substrate (14) so that the component is joined to the substrate (14) mechanically and electrically upon solidification of the molten solder (19). There is no physical contact between the dispensing orifice assembly (18) and joint. The system (10) also includes a controller for the soldering tool (16). The controller functions in response to process control parameters so that the controlled quantity of molten solder (19) is dispensed through a non-oxidizing atmosphere by a pressure pulse applied to the molten solder.

摘要翻译： 一种微焊接装置和方法，包括用于将电子部件（12）附接到基板（14）的系统（10）。 系统（10）包括焊接工具（16），其包括用于将受控量的熔融焊料（19）脉动地分配到部件（12）和基板（14）的分配孔组件（18），使得部件连接到 所述基底（14）在所述熔融焊料（19）凝固时机械地和电气地进行。 分配孔组件（18）和接头之间没有物理接触。 系统（10）还包括用于焊接工具（16）的控制器。 控制器响应于过程控制参数而起作用，使得熔融焊料（19）的受控量通过施加到熔融焊料的压力脉冲通过非氧化气氛分配。

公开(公告)号：US4228128A

公开(公告)日：1980-10-14

申请号：US21374

申请日：1979-03-19

申请人： Michael J. Esper ,  Wells L. Green ,  Stanley R. Merchant

发明人： Michael J. Esper ,  Wells L. Green ,  Stanley R. Merchant

IPC分类号： G01N27/12 ,  G01N27/409 ,  H01C7/04

CPC分类号： H01C7/045 ,  G01N27/12 ,  Y10T436/208339

摘要： An improved sensor having a ceramic element that undergoes a change in an electrical characteristic in response to a change in the partial pressure of oxygen in a mixture of gases to which the ceramic element is exposed. Sensors of this type are used to detect the air/fuel ratio of mixtures supplied to internal combustion engines. Prior art sensors are characterized by little change in their respective electrical characteristics at low operating temperatures. A charge transfer material, platinum or platinum/rhodium is applied to the ceramic element to facilitate or make possible the electron transfers required for sensor operation at low temperatures. Platinum/rhodium alloy is the currently preferred charge transfer material. This alloy, which preferably is 90% platinum and 10% rhodium, reduces the minimum temperature of operation for the sensor as taught herein, and it also substantially eliminates vaporization loss of the charge transfer material.

摘要翻译： 一种改进的传感器，其具有响应于陶瓷元件暴露的气体混合物中的氧分压变化而经历电特性变化的陶瓷元件。 这种类型的传感器用于检测提供给内燃机的混合物的空气/燃料比。 现有技术的传感器的特征在于在低操作温度下它们各自的电特性几乎没有变化。 将电荷转移材料铂或铂/铑施加到陶瓷元件以便于或使得在低温下传感器操作所需的电子转移成为可能。 铂/铑合金是目前优选的电荷转移材料。 该合金优选为90％的铂和10％的铑，降低了传感器的最低操作温度，如本文所述，并且还基本上消除了电荷转移材料的蒸发损失。

公开(公告)号：US4193289A

公开(公告)日：1980-03-18

申请号：US5421

申请日：1979-01-22

申请人： Jerry L. Springer ,  Charles M. Wells ,  Wells L. Green

发明人： Jerry L. Springer ,  Charles M. Wells ,  Wells L. Green

IPC分类号： G01N27/04 ,  F02D35/00 ,  G01N27/12 ,  G01N27/409 ,  G01N7/02

CPC分类号： G01N27/12

摘要： An improved exhaust gas oxygen sensor of the type adapted for installation in an exhaust conduit of an internal combustion engine. The improved sensor is of the type employing a titania oxygen sensing element responsive to the partial pressure of oxygen in the exhaust gas. A ceramic insulator supports the titania oxygen sensing element and is of improved design. Prior designs have contributed to cold-working of the electrode lead wires connected to the titania oxygen sensing element. The improved insulator design has a pedestal located adjacent the passages in the insulator through which the lead wires pass for the purpose of minimizing cold-working of the lead wires. This aids in preventing fracture of the wires during their use in a feedback fuel control system employing the oxygen sensor.

摘要翻译： 一种改进的废气氧传感器，其类型适于安装在内燃机的排气管道中。 改进的传感器是采用二氧化钛氧感测元件的类型，其响应于废气中的氧分压。 一种陶瓷绝缘体支持二氧化钛氧传感元件，并具有改进的设计。 现有设计有助于连接到氧化钛感测元件的电极引线的冷加工。 改进的绝缘体设计具有位于绝缘体内的基座，引线通过该基座通过，用于最小化导线的冷加工。 这有助于在使用氧气传感器的反馈燃料控制系统中防止电线断裂。

公开(公告)号：US4001758A

公开(公告)日：1977-01-04

申请号：US609767

申请日：1975-09-02

申请人： Michael J. Esper ,  Wells L. Green ,  Stanley R. Merchant ,  Charles M. Wells

发明人： Michael J. Esper ,  Wells L. Green ,  Stanley R. Merchant ,  Charles M. Wells

IPC分类号： G01N27/12 ,  H01L7/00

CPC分类号： G01N27/12

摘要： A stoichiometric air/fuel ratio exhaust gas sensor construction particularly useful with variable resistance partial pressure of oxygen responsive sensor material is disclosed. A generally cylindrical mounting body, formed of corrosion resistant material, is arranged for receipt within the exhaust system of an internal combustion engine and is provided with a two-part ceramic insert member for support of a wafer of variable resistance sensor material. The ceramic insert member is comprised of a first portion having a slotted tip for receipt and support of the wafer of partial pressure of oxygen responsive ceramic sensor material. The ceramic insert member is arranged to position the wafer within a perforated shield member at a remote free end of the cylindrical housing body. The wafer includes a pair of extending high temperature resistant electrical conductors which are received within bores provided therefor in the ceramic insert member. The extending leads are electrically connected, proximate to the interface of the two-part ceramic insert member, to a pair of relatively flexible, electrically low resistance, high temperature resistant extending lead wires which are received within the second portion of the ceramic insert member.