| 单词 | clearance volume |
| 释义 | clearance volume in Automotive Engineering (klɪərəns vɒlyum) noun (Automotive engineering: Vehicle components, Engine, transmission, and exhaust) The clearance volume is the volume remaining above the piston of an engine when it reaches top dead center. The maximum compression pressure in the piston is controlled by the clearance volume. When the piston is at top dead center, the clearance volume is at a minimum. When the piston moves to bottom dead center, it is at a maximum. The nominal volume of the combustion chamber above the piston when it is at the topdead center is the clearance volume. |
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