公开(公告)号：EP0989370A2

公开(公告)日：2000-03-29

申请号：EP99203034.6

申请日：1999-09-17

申请人： Delphi Technologies, Inc.

发明人： Chiu, Randolph Kwok-kin ,  Oakley, Charles Dale ,  McClanahan, Mark Ray ,  Mann, Gambur Singh ,  Polikarpus, Kaius Kiiren ,  Leptich, Joseph Michael ,  Chen, David Kwo-Shyong

IPC分类号： F23Q7/00 ,  F02P19/00

CPC分类号： F23Q7/001

摘要： A glow sensor (10, 60, 100, 130, 140, 154) provides functions of both a diesel engine glow plug and an ion sensor for sensing engine combustion initiation and characteristics. The sensor includes a tubular metal sheath (14, 64) supported by various embodiments of electrical insulating and retaining means in a metal shell (12, 62) mountable in an engine cylinder head. The metal sheath (14, 64) includes a heating element (24) in a glow tip (22) at an inner end of the sheath (14, 64) which, in use, extends into an engine combustion chamber or pre-chamber and is connected by a conductor with a source of electric voltage. In use, the voltage produces a current carried by electrons generated by ionization of the combustion chamber gases during combustion. The current varies with the degree of ionization and the amount of electrons generated during various phases of the combustion event. The resulting information is usable in controlling engine operation or evaluating its operation for test purposes. Various construction features of disclosed embodiments include isolated or non-isolated heating coils for electric heaters (24) within the glow tip (22) with various arrangements for internally connecting and grounding the electrical elements in the glow sensor (10, 60, 100, 130, 140, 154).

公开(公告)号：EP0989370A3

公开(公告)日：2005-04-20

申请号：EP99203034.6

申请日：1999-09-17

申请人： Delphi Technologies, Inc.

发明人： Chiu, Randolph Kwok-kin ,  Oakley, Charles Dale ,  McClanahan, Mark Ray ,  Mann, Gambur Singh ,  Polikarpus, Kaius Kiiren ,  Leptich, Joseph Michael ,  Chen, David Kwo-Shyong

IPC分类号： F23Q7/00

CPC分类号： F23Q7/001

摘要： A glow sensor (10, 60, 100, 130, 140, 154) provides functions of both a diesel engine glow plug and an ion sensor for sensing engine combustion initiation and characteristics. The sensor includes a tubular metal sheath (14, 64) supported by various embodiments of electrical insulating and retaining means in a metal shell (12, 62) mountable in an engine cylinder head. The metal sheath (14, 64) includes a heating element (24) in a glow tip (22) at an inner end of the sheath (14, 64) which, in use, extends into an engine combustion chamber or pre-chamber and is connected by a conductor with a source of electric voltage. In use, the voltage produces a current carried by electrons generated by ionization of the combustion chamber gases during combustion. The current varies with the degree of ionization and the amount of electrons generated during various phases of the combustion event. The resulting information is usable in controlling engine operation or evaluating its operation for test purposes. Various construction features of disclosed embodiments include isolated or non-isolated heating coils for electric heaters (24) within the glow tip (22) with various arrangements for internally connecting and grounding the electrical elements in the glow sensor (10, 60, 100, 130, 140, 154).

摘要翻译： 发光传感器（10,60,100,130,140,​​154）提供柴油发动机预热塞和用于感测发动机燃烧起始和特性的离子传感器的功能。 传感器包括由可安装在发动机气缸盖中的金属外壳（12,62）中的电绝缘和保持装置的各种实施例支撑的管状金属护套（14,64）。 金属护套（14,64）包括在护套（14,64）的内端处的辉光顶端（22）中的加热元件（24），其在使用中延伸到发动机燃烧室或预制室中， 由具有电压源的导体连接。 在使用中，电压在燃烧期间产生由燃烧室气体的电离产生的电子携带的电流。 电流随着电离的程度和在燃烧事件的各个阶段期间产生的电子量而变化。 所得到的信息可用于控制发动机操作或评估其操作以用于测试目的。 所公开的实施例的各种结构特征包括用于在辉光顶端（22）内的电加热器（24）的隔离或非隔离加热线圈，其具有用于内部连接和接地辉光传感器（10,60,100,130）中的电气元件的各种布置 ，140,154）。