| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a glow plug integrated with a pressure sensor measuring a combustion pressure without using elastic deformation of a housing itself. <P>SOLUTION: The glow plug is provided with substantially cylindrical housings 42 and 44 coupled to an inner wall defining a through hole, an inner shaft 20 slidably housed in the housings 42 and 44, the pressure sensor 50 fixed between a side of the inner shaft 20 opposite to a combustion chamber and the housings 42 and 44, and a support member 30 provided between the inner shaft 20 and the housings 42 and 44 to slidably support the inner shaft 20 along an axis. Combustion chamber side ends of the housings 42 and 44 are adhered to an inner wall of an engine head 12 when the glow plug 51 is attached to the through hole, and the support member 30 is provided with an inner shaft fixing members 33 and 35 fixed to the inner shaft 20, a housing fixing part (a protruding part 36) fixed to the housing 42, and straining parts 32 and 34 provided between the inner shaft fixing parts 33 and 35, and the housing fixing part to change axial distances between the inner shaft fixing parts 33 and 35, and the housing fixing part by elastically deforming. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
