JPH0457056U

JPH0457056U -

Info

Publication number: JPH0457056U
Application number: JP9970690U
Authority: JP
Priority date: 1990-09-26
Filing date: 1990-09-26
Publication date: 1992-05-15

Description

[Brief explanation of the drawing]

図面は本考案の一実施例の縦断面図である。１……ハウジング、２……ヒートワイヤ（発熱
体）、３……シース、５……中央電極、７……ブ
ツシユ、９……圧電素子、１１……スプリング（
弾性部材）。 The drawing is a longitudinal sectional view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Housing, 2... Heat wire (heating element), 3... Sheath, 5... Center electrode, 7... Bush, 9... Piezoelectric element, 11... Spring (
elastic member).

Claims

[Claims for Utility Model Registration] A sheath housing a heating element is fitted into the cylindrical housing, the rear end of the sheath is positioned within the housing, and a center electrode is inserted into the sheath from the rear end of the housing. In the glow plug, the central electrode and the housing are insulated by a bushing fitted between the two, and the sheath is built into the housing so as to be able to slide by a small amount, and the rear end of the sheath and the bushing are inserted into the glow plug. A glow plug with an ignition sensor, characterized in that a piezoelectric element is interposed between the front end and the bush, and an elastic member is interposed between the piezoelectric element and the bush to press the piezoelectric element toward the sheath side.