The injector casing is a key component of the XGC55 crawler crane engine (such as Weichai WD615, Shangchai SC7H or Cummins QSB6.7), which is used to fix the injector and seal the high-pressure fuel and combustion chamber. The material is usually copper alloy, which is resistant to high temperature (≤ 300 ° C) and high pressure (≥ 160MPa). It is matched with the injector O-ring to prevent fuel leakage.
