| 单词 | blow-by |
| 释义 | blow-by in British Englishnoun the leakage of gas past the piston of an engine at maximum pressure blow-by in Automotive Engineering (bloʊ baɪ) noun (Automotive engineering: Vehicle components, Engine, transmission, and exhaust) Blow-by is unwanted leakage of gas under pressure, such as that from a piston or its sealing rings. The blow-by that occurs when too much pressure from the combustion chamber leaks into the crankcaseneeds to escape somewhere. All piston engines experience blow-by of compressed gas past the piston rings. If the crankcase were completely closed, the blow-by would raise its internal pressure to unsafe levels. |
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