公开(公告)号：US08729784B2

公开(公告)日：2014-05-20

申请号：US13766103

申请日：2013-02-13

Applicant: Fram Group IP LLC

Inventor： Ronald P. Rohrbach ,  Peter D. Unger ,  Jeffrey T. Boehler ,  Jing Zheng

IPC: H01T13/20

CPC classification number: H01T13/20

Abstract: An insulator for a spark plug is provided having an insulator tip. The insulator tip includes a feature extending radially inward from an exterior surface of the insulator tip.

Abstract translation: 提供一种用于火花塞的绝缘体，其具有绝缘体尖端。 绝缘体尖端包括从绝缘体尖端的外表面径向向内延伸的特征。

公开(公告)号：US10992112B2

公开(公告)日：2021-04-27

申请号：US15863427

申请日：2018-01-05

Applicant: FRAM GROUP IP LLC

Inventor： Jing Zheng ,  Ronald P. Rohrbach ,  Peter D. Unger ,  Jeffrey T. Boehler

IPC: H01T13/14 ,  H01T13/38 ,  H01T21/02

Abstract: A spark plug includes an insulative sleeve. A glaze coating is disposed on an exterior surface of the insulative sleeve. The glaze coating includes a boric acid, a borosilicate glass, a barium borate glass, a phosphorous glass, a silicate glass, or a combination thereof. The glasses are independently modified with a modifier selected from the group consisting of alkali group metals, alkali earth group metals, aluminum, silicon, a halogen, or a combination thereof. The glaze coating has a softening point between about 650° C. and about 1100° C.

公开(公告)号：US20170288376A1

公开(公告)日：2017-10-05

申请号：US15625312

申请日：2017-06-16

Applicant: Fram Group IP LLC

Inventor： Jing Zheng ,  Corey Eiden ,  Matthe B. Below

IPC: H01T13/58 ,  G01R31/12 ,  F02P17/00

CPC classification number: H01T13/58 ,  F02P17/00 ,  G01R31/12 ,  G01R31/1227 ,  H01T13/60

Abstract: A system for testing an insulative material for a spark plug comprises a test spark plug having at least a center electrode and an insulator comprised of an insulative material surrounding at least a portion of the center electrode, wherein the insulator has an end that is closed, whereby the closed end of the insulator encloses an end of the center electrode. The system may further include a test engine that simulates engine conditions, wherein a conventional spark plug is installed in a first ignition port of the test engine and the test spark plug is installed in a second ignition portion of the test engine and a control system for controlling ignition signals to the test spark plug and the conventional spark plug.

公开(公告)号：US09350143B2

公开(公告)日：2016-05-24

申请号：US14157266

申请日：2014-01-16

Applicant: Fram Group IP, LLC

Inventor： Peter D. Unger ,  Ronald P. Rohrbach ,  Jeffrey T. Boehler ,  Jing Zheng

IPC: H01T21/02 ,  H01T13/14 ,  H01T13/20

CPC classification number: H01T21/02 ,  H01T13/14 ,  H01T13/20

Abstract: A spark plug is provided. The spark plug has an insulative sleeve with a central axial bore and an exterior surface of a shaped tip portion. A coating is disposed on the exterior surface of the shaped tip portion and the coating comprises a transition metal compound or a combination of transition metal compounds, and an alkali metal compound. A center electrode extends through the central axial bore of the insulative sleeve. A metal sleeve is provided, wherein the insulating sleeve is positioned within, and secured to the metal shell. A ground electrode is coupled to the metal shell and positioned in a spaced relationship relative to the center electrode so as to define a spark gap.

Abstract translation: 提供火花塞。 火花塞具有绝缘套筒，其具有中心轴向孔和成形尖端部分的外表面。 涂层设置在成形尖端部分的外表面上，并且涂层包含过渡金属化合物或过渡金属化合物和碱金属化合物的组合。 中心电极延伸穿过绝缘套筒的中心轴向孔。 提供一种金属套筒，其中该绝缘套管位于该金属外壳内并固定在其上。 接地电极耦合到金属壳并且相对于中心电极以间隔开的关系定位，以便限定火花隙。

公开(公告)号：US20150228384A1

公开(公告)日：2015-08-13

申请号：US14601359

申请日：2015-01-21

Applicant: Fram Group IP, LLC

Inventor： Jing Zheng ,  Danny R. Overton

IPC: H01B19/00 ,  H01B3/10 ,  H01T13/38

CPC classification number: H01B19/00 ,  H01B3/10 ,  H01T13/20 ,  H01T13/38 ,  H01T21/02 ,  Y10T29/49227

Abstract: A method of manufacturing an insulator for a spark plug comprises the steps of combining at least two raw materials to form a powdered insulator formulation, spray drying the powdered insulator formulation, and pressing the powdered insulator formulation to create an insulator blank. The method further includes the steps of bisque firing the insulator blank, grinding the bisque fired insulator blank to form the insulator, and sintering the insulator.

Abstract translation: 制造用于火花塞的绝缘体的方法包括以下步骤：组合至少两种原料以形成粉末状绝缘子制剂，喷雾干燥粉末状绝缘子制剂，以及压制粉状绝缘子制剂以产生绝缘体坯料。 该方法还包括以下步骤：对绝缘体坯料进行烧结，研磨烧结绝缘体坯料以形成绝缘体，并烧结绝缘体。

公开(公告)号：US20140134912A1

公开(公告)日：2014-05-15

申请号：US14157251

申请日：2014-01-16

Applicant: Fram Group IP, LLC

Inventor： Jing Zheng ,  Jeffrey T. Boehler

IPC: H01T21/02

CPC classification number: H01T21/02 ,  H01T13/41

Abstract: A spark plug is provided having a resistor. The resistor is made from resistor glass material containing an alkali free barium alumino-silicate glass mixed with mullite. In one embodiment, the resistor is a 15 to 30 wt % alkali free barium alumino-silicate glass and 10 to 25 wt % mullite. The resistor material provides for a greater processing kiln temperature range with reduced resistor variability and improved durability performance.

Abstract translation: 提供具有电阻器的火花塞。 该电阻由含有与莫来石混合的无碱钡铝硅酸盐玻璃的电阻玻璃材料制成。 在一个实施方案中，电阻器为15至30重量％的无碱钡铝硅酸盐玻璃和10至25重量％的莫来石。 电阻材料提供更大的加工窑温度范围，降低电阻变化性和改善的耐久性能。

公开(公告)号：US20140131927A1

公开(公告)日：2014-05-15

申请号：US14157266

申请日：2014-01-16

Applicant: Fram Group IP, LLC

Inventor： Peter D. Unger ,  Ronald P. Rohrbach ,  Jeffrey T. Boehler ,  Jing Zheng

IPC: H01T21/02

CPC classification number: H01T21/02 ,  H01T13/14 ,  H01T13/20

Abstract: A spark plug is provided. The spark plug has an insulative sleeve with a central axial bore and an exterior surface of a shaped tip portion. A coating is disposed on the exterior surface of the shaped tip portion and the coating comprises a transition metal compound or a combination of transition metal compounds, and an alkali metal compound. A center electrode extends through the central axial bore of the insulative sleeve. A metal sleeve is provided, wherein the insulating sleeve is positioned within, and secured to the metal shell. A ground electrode is coupled to the metal shell and positioned in a spaced relationship relative to the center electrode so as to define a spark gap.

Abstract translation: 提供火花塞。 火花塞具有绝缘套筒，其具有中心轴向孔和成形尖端部分的外表面。 涂层设置在成形尖端部分的外表面上，并且涂层包含过渡金属化合物或过渡金属化合物和碱金属化合物的组合。 中心电极延伸穿过绝缘套筒的中心轴向孔。 提供一种金属套筒，其中该绝缘套管位于该金属外壳内并固定在其上。 接地电极耦合到金属壳并且相对于中心电极以间隔开的关系定位，以便限定火花隙。

公开(公告)号：US20130214672A1

公开(公告)日：2013-08-22

申请号：US13766103

申请日：2013-02-13

Applicant: FRAM GROUP IP LLC

Inventor： Ronald P. Rohrbach ,  Peter D. Unger ,  Jeffrey T. Boehler ,  Jing Zheng

IPC: H01T13/20

CPC classification number: H01T13/20

Abstract: An insulator for a spark plug is provided having an insulator tip. The insulator tip includes a feature extending radially inward from an exterior surface of the insulator tip.

Abstract translation: 提供一种用于火花塞的绝缘体，其具有绝缘体尖端。 绝缘体尖端包括从绝缘体尖端的外表面径向向内延伸的特征。