| 摘要 |
A pressure-measuring glow plug for a diesel engine with a plug body ( 3, 4 ) for insertion into a cylinder of the diesel engine, a heating rod ( 1 ) which is arranged in the plug body ( 3, 4 ), and a pressure sensor, which is arranged under an initial tension between the heating rod ( 1 ) and the plug body ( 3, 4 ), in such a way that the pressure sensor ( 7 ) is acted upon by the pressure prevailing in the combustion chamber of the cylinder. The heating rod ( 1 ) transmits the pressure in the combustion chamber of the cylinder to the pressure sensor ( 7 ) and is arranged so as to be displaceable in a sliding manner in the axial direction relative to the plug body ( 3, 4 ). A seal in the form of a bellows-shaped component ( 2 ) is provided between the heating rod ( 1 ) and the plug body ( 3, 4 ).
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