公开(公告)号：EP1255108A3

公开(公告)日：2004-09-08

申请号：EP02076393.4

申请日：2002-04-10

Applicant: Delphi Technologies, Inc.

Inventor： Ismail, Keith N. ,  Lecea, Oscar A. ,  Thomson, Steven D.

IPC: G01N33/30 ,  G01N33/28 ,  G01N27/22

CPC classification number: G01N33/2888

Abstract: A flexible circuit film oil sensor (20, 70) includes a flexible circuit film (32, 72) surrounded by a flexible border (42, 74). A core support flap (48, 82) and a weld flap (50, 80) are attached to opposite ends of the flexible border (42, 74). The flexible circuit film (32, 72) includes an oil level sensing electrode surface (34), an oil condition sensing electrode surface (36, 84), a resistive temperature device (40, 86), and a common electrode surface (38, 88). The flexible circuit film engine oil sensor (20, 70) is wrapped around a core structure so that a spiral oil chamber (62, 102) is formed. Accordingly, the spiral oil chamber (62, 102) is at least partially filled with oil (22) and electrical signals are provided across the electrode surfaces (34, 36, 38, 84, 88) in order to monitor the level and condition of oil (22) within the sensor (20, 70). Additionally, the resistive temperature device (40, 86) provides a signal representative of the temperature of the oil (22) within the sensor (20, 70).

Abstract translation: 柔性电路膜油传感器（20,70）包括由柔性边界（42,74）包围的柔性电路膜（32,72）。 芯部支撑翼片（48,82）和焊接翼片（50,80）附接到柔性边框（42,74）的相对端。 柔性电路膜（32,72）包括油位检测电极表面（34），油位感测电极表面（36,84），电阻温度装置（40,86）和公共电极表面（38， 88）。 柔性电路膜发动机油传感器（20,70）围绕芯结构缠绕，从而形成螺旋油室（62,102）。 因此，螺旋油室（62,102）至少部分地被油（22）填充，并且电信号跨越电极表面（34,36,38,84,88）设置，以便监视电极表面 传感器（20,70）内的油（22）。 此外，电阻温度装置（40,86）提供表示传感器（20,70）内的油（22）的温度的信号。

公开(公告)号：EP1255107A2

公开(公告)日：2002-11-06

申请号：EP02076333.0

申请日：2002-04-05

Applicant: Delphi Technologies, Inc.

Inventor： Ismail, Keith N. ,  Lecea, Oscar A. ,  Thomson, Steven D.

IPC: G01N33/28 ,  G01F23/26

CPC classification number: G01F23/265 ,  G01F23/268 ,  G01N33/2888

Abstract: An oil level/condition sensor includes a first level sensing tube (32), a common tube (34), and a second level sensing tube (36). The tubes (32, 34, 36) are concentric to each other around a central axis (38). Moreover, the tubes (32, 34, 36) are separated by plastic spacers (40) which insulate the level sensing tubes (32, 36) from the common tube (34) and maintain the concentricity of the tubes (32, 34, 36). Installed in the end of the first level sensing tube (32) is a coupling/plug (44) and disposed around the coupling/plug (44) is a first condition sensing tube (46). The coupling/plug (44) insulates the first level sensing tube (32) from the first condition sensing tube (46) and prevents fluid communication therebetween. A second condition sensing tube (54) is attached to the second level sensing tube (36) around the common tube (34) and the first condition sensing tube (46). A ring-shaped insulator (56) electrically isolates the second condition sensing tube (54) from the second level sensing tube (36). The multiple tube configuration provides increased sensing surface area without increasing the length of the sensor (20) or dramatically increasing the overall diameter of the sensor package. As such, the increased sensing surface area increases the signal strength and the accuracy of the sensor (20). Thus, the sensor (20) is used in relatively shallow oil pans (14) where the length of the sensor (20) is constrained by the depth of the oil pan (14).

Abstract translation: 油位/状态传感器包括第一级感测管（32），公共管（34）和第二级感测管（36）。 管（32,34,36）围绕中心轴线（38）彼此同心。 此外，管（32,34,36）由塑料间隔件（40）分开，塑料间隔件（40）将液位传感管（32,36）与公共管（34）绝缘，并保持管（32,34,36）的同心度 ）。 安装在第一级感测管（32）的端部的是联接器/插塞（44），并且设置在联接器/插头（44）周围的是第一状态感测管（46）。 联接/插头（44）将第一级感测管（32）与第一状态感测管（46）绝缘，并防止其间的流体连通。 第二条件感测管（54）围绕公共管（34）和第一条件感测管（46）附接到第二级感测管（36）。 环形绝缘体（56）将第二条件感测管（54）与第二电平传感管（36）电隔离。 多管配置提供增加的感测表面积，而不增加传感器（20）的长度或显着增加传感器封装的整体直径。 因此，增加的感测表面积增加了传感器（20）的信号强度和精度。 因此，传感器（20）用于相对浅的油盘（14）中，其中传感器（20）的长度被油盘（14）的深度约束。

公开(公告)号：EP1255107A3

公开(公告)日：2004-07-07

申请号：EP02076333.0

申请日：2002-04-05

Applicant: Delphi Technologies, Inc.

Inventor： Ismail, Keith N. ,  Lecea, Oscar A. ,  Thomson, Steven D.

IPC: G01N33/28 ,  G01N27/22 ,  G01F23/26

CPC classification number: G01F23/265 ,  G01F23/268 ,  G01N33/2888

Abstract: An oil level/condition sensor includes a first level sensing tube (32), a common tube (34), and a second level sensing tube (36). The tubes (32, 34, 36) are concentric to each other around a central axis (38). Moreover, the tubes (32, 34, 36) are separated by plastic spacers (40) which insulate the level sensing tubes (32, 36) from the common tube (34) and maintain the concentricity of the tubes (32, 34, 36). Installed in the end of the first level sensing tube (32) is a coupling/plug (44) and disposed around the coupling/plug (44) is a first condition sensing tube (46). The coupling/plug (44) insulates the first level sensing tube (32) from the first condition sensing tube (46) and prevents fluid communication therebetween. A second condition sensing tube (54) is attached to the second level sensing tube (36) around the common tube (34) and the first condition sensing tube (46). A ring-shaped insulator (56) electrically isolates the second condition sensing tube (54) from the second level sensing tube (36). The multiple tube configuration provides increased sensing surface area without increasing the length of the sensor (20) or dramatically increasing the overall diameter of the sensor package. As such, the increased sensing surface area increases the signal strength and the accuracy of the sensor (20). Thus, the sensor (20) is used in relatively shallow oil pans (14) where the length of the sensor (20) is constrained by the depth of the oil pan (14).

公开(公告)号：EP1255108A2

公开(公告)日：2002-11-06

申请号：EP02076393.4

申请日：2002-04-10

Applicant: Delphi Technologies, Inc.

Inventor： Ismail, Keith N. ,  Lecea, Oscar A. ,  Thomson, Steven D.

IPC: G01N33/30

CPC classification number: G01N33/2888

Abstract: A flexible circuit film oil sensor (20, 70) includes a flexible circuit film (32, 72) surrounded by a flexible border (42, 74). A core support flap (48, 82) and a weld flap (50, 80) are attached to opposite ends of the flexible border (42, 74). The flexible circuit film (32, 72) includes an oil level sensing electrode surface (34), an oil condition sensing electrode surface (36, 84), a resistive temperature device (40, 86), and a common electrode surface (38, 88). The flexible circuit film engine oil sensor (20, 70) is wrapped around a core structure so that a spiral oil chamber (62, 102) is formed. Accordingly, the spiral oil chamber (62, 102) is at least partially filled with oil (22) and electrical signals are provided across the electrode surfaces (34, 36, 38, 84, 88) in order to monitor the level and condition of oil (22) within the sensor (20, 70). Additionally, the resistive temperature device (40, 86) provides a signal representative of the temperature of the oil (22) within the sensor (20, 70).