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US5377629A Adaptive manifold tuning 失效
自适应歧管调谐

Adaptive manifold tuning
摘要:
The effective area of a Helmholtz resonator used to tune the manifold is varied in accordance with engine speed to improve the engine-torque speed curve. The organization and arrangement of air intake passage, plenum chamber, runners, and Helmholtz resonator is also advantageous.
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