COMBUSTION PRESSURE SENSOR AND METHOD OF MANUFACTURING THE SAME

摘要

A combustion pressure sensor having a tubular housing extending in an axial direction DX, a displacement member disposed within the housing, and a tubular connection member which elastically connects the displacement member to the housing. The combustion pressure sensor has a housing weld W1 that connects the housing and the connection member At least a circumferential portion of the housing weld is a bulge housing weld RW1 which bulges in a radial direction DR.

主权项

1. A combustion pressure sensor comprising
a tubular housing extending in an axial direction; a displacement member at least a portion of which is disposed within the housing and which is displaced in the axial direction with pressure received from a forward side in the axial direction; and a tubular connection member which elastically connects the displacement member to the housing, the combustion pressure sensor having a housing weld which is formed by energy-beam-welding the housing and the connection member annularly in a circumferential direction of the housing and the connection member while the housing and the connection member are separated from each other at least partially in the circumferential direction; which contains metal components derived from the housing and metal components derived from the connection member; and which includes, in a longitudinal section of the combustion pressure sensor, a wedged weld resulting from wedgewise melting of a portion of the housing, wherein at least a portion in the circumferential direction of the housing weld is a bulge housing weld which bulges, with respect to a first adjacent portion, in a direction directed from a second adjacent portion toward the first adjacent portion along a radial direction, where the first adjacent portion is a portion of the connection member adjacent to the housing weld, and the second adjacent portion is a portion of the housing adjacent to the housing weld.