| 摘要 |
According to the present invention, a glow plug for an internal engine comprises: a hollow housing; a power application part fixed to the housing to apply power; a heating part installed in the housing to heat by the power applied from the power application part; a pressure reducing part prepared between the housing and the heating part to reduce the sliding pressure of the heating part generated when sliding along the housing; and a foreign material inflow preventing part prepared in the end of the pressure reducing part to prevent a foreign material generated by heat from the heating part from flowing in the housing by being curved in the inside direction of the housing. According to the present invention, the pressure of a combustion chamber in the heating part of the glow plug can accurately be measured. |
