Adaptive manifold tuning

Details Adaptive manifold tuning Adaptive manifold tuning

1993-10-20

1995-01-03

Kamen, Noah P.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

181229, F02B 7518

Patent

active

053776291

ABSTRACT:
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.

REFERENCES:
patent: 4546733 (1985-10-01), Fukami et al.
patent: 5040495 (1991-08-01), Harada et al.

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