摘要:
A glow plug (100) includes a heater member (120); three heater power lead wires (170) which extend rearward along an axis (AX) and whose conductors (171) electrically communicate with one and of a heater conductor (121) for supply of power; a sensor portion (140) for detecting the combustion pressure of an internal combustion engine; a sensor connection line (175) connected to the sensor portion (140) and extending rearward along the axis (AX); a housing (120); a sensor-portion-enclosing tube (160); and a grommet (190) formed from an insulating rubber-like elastic material, having insertion holes (190H) through which the heater power lead wires (170) and the sensor connection line (175) are respectively inserted, the grommet liquid-tightly closing an end portion (160k) of the sensor-portion-enclosing tube (160), and liquid-tightly holding the heater power lead wires (170) and the sensor connection line (175).
摘要:
A flow rate and flow velocity measurement device has a divided flow pipe 332 which is attached so as to be orthogonal to an intake pipe 1 of an engine, and into which a flow in the intake pipe 1 is introduced, an inlet plate 334 which extends in a direction orthogonal to a flow direction in the intake pipe 1 and forms a U-shape form pipe passage in the divided flow pipe 332, and a detection element 331 which is disposed so as to be exposed to a flow in the divided flow pipe 332 outside the intake pipe 1 and detects a flow rate and a flow velocity, wherein one end of the inlet plate 334 protrudes into the intake pipe 1 while passing a top opening of the divided flow pipe 332, and the divided flow pipe 332 has a flow passage structure symmetrical with the detection element 331 being made a center, so that an equivalent detection element 331 output is obtained in regard to both cases in which a fluid flows through the intake pipe 1 in a normal direction and a reverse direction.