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    • 2. 发明公开
    • CERAMIC HEATER-TYPE GLOW PLUG
    • GLÜHKERZEMIT KERAMISCHER HEIZVORRICHTUNG
    • EP1707883A4
    • 2017-01-25
    • EP04820682
    • 2004-12-08
    • BOSCH CORP
    • TANAKA ARIHITOZHAO JIAN
    • F23Q7/00H05B3/14
    • F23Q7/001H05B3/141H05B2203/027
    • The present invention prevents the occurrence of damage on a small diameter portion 4a which is formed on a rear end portion of a ceramic heater fixed in a metallic outer sleeve 8. The ceramic heater 4 is fixed in the metallic outer sleeve 8 by blazing or the like in a state that a heat generating portion formed on a distal end thereof is exposed to the outside. The rear end portion of the ceramic heater 4 is positioned inside the metallic outer sleeve 8, and the small diameter portion 4b is formed on the rear end. The rear-end small diameter portion 4b of the ceramic heater 4 is connected to an electrode lead-out member (electrode lead-out wire 10) for taking out a positive electrode of a heat generating material. Granulated powder (alumina, for example) 18 made of inorganic insulating material is filled in around a connecting portion of the ceramic heater 4 in the metallic outer tube 8 and the electrode lead-out-wire 10, and in addition, magnesia 20 is sealed outside the granulated powder. Thereafter, swaging is performed to bring the magnesia 20 into a highly dense state thus fixing the electrode lead-out wire 10 and an electrode lead-out rod 12 in the metallic outer sleeve 8.
    • 本发明防止了形成在固定在金属外套筒8中的陶瓷加热器的后端部分上的小直径部分4a的损坏。陶瓷加热器4通过燃烧或固定在金属外套筒8中 类似于形成在其远端上的发热部分暴露于外部的状态。 陶瓷加热器4的后端位于金属外套8的内侧,小直径部4b形成在后端。 陶瓷加热器4的后端小直径部分4b连接到用于取出发热材料的正电极的电极引出部件(电极引出线10)。 在金属外管8和电极引出线10中的陶瓷加热器4的连接部分周围填充由无机绝缘材料制成的造粒粉末(例如氧化铝)18,另外,将氧化镁20密封 在造粒粉末外面。 此后,进行模锻以使氧化镁20成为高密度状态,从而将电极引出线10和电极引出杆12固定在金属外套筒8中。
    • 6. 发明公开
    • PRESSURE SENSOR TYPE GLOW PLUG
    • 发光蜡烛带压力传感器
    • EP2884180A4
    • 2015-08-26
    • EP13827498
    • 2013-06-20
    • BOSCH CORP
    • TAKATSU KATSUMI
    • F23Q7/00
    • F23Q7/001F23Q2007/002
    • To provide a pressure sensor integrated glow plug that suppresses the build-up of carbon and SOF in an interstice between a housing and a heater element to thereby ensure that the heater element is not restrained over a long period of time. A pressure sensor integrated glow plug inserted inside a cylinder of an internal combustion engine and used, the pressure sensor integrated glow plug being equipped with a housing, a rod-like heater element held with its distal end projecting from the housing, and a pressure sensor, with the heater element being held in the housing by a flexible member and configured in such a way that its position relative to the housing is displaceable, and with the pressure sensor being configured in such a way that it can receive pressure inside the cylinder because of the displacement of the heater element, wherein a heat-resistant fiber member carrying an oxidation catalyst component is disposed in an interstice between the housing and the heater element on the distal end side of the flexible member.