Research Article
Failure Analysis of the Pin Bore of the Combined Piston for the Aero Engine
Table 3
The third kind of thermal boundary condition of the piston of an aircraft engine.
| Position | Ambient temperature (K) | Convective heat transfer coefficient (W/(m2·K)) | Position | Ambient temperature (K) | Convective heat transfer coefficient (W/(m2·K)) |
| Piston crown | 700 | 503 | Upper part of piston cavity | 360 | 310 | Piston bank | 450 | 98 | Lower part of piston cavity | 360 | 290 | Piston skirt | 160 | 300 | Oil passage | 230 | 480 | Pin bore | 210 | 270 | Upper first ring groove | 430 | 700 | Other ring grooves | 200 | 250 | Lower first ring groove | 400 | 650 |
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