Failure Analysis of the Pin Bore of the Combined Piston for the Aero Engine

Table 4

Engine test conditions.

Ambient temperature	20°C
Atmospheric pressure	968 kPa
Engine RPM (r/min)	Endurance test requirements
Engine run-up time (h)	≥150
Oil pressure (bar)	3-8 bar
Oil temperature (°C)	50-110
Coolant temperature (°C)	80-120