Continuously variable intake manifold with intelligent...

Details Continuously variable intake manifold with intelligent... Continuously variable intake manifold with intelligent...

2006-01-10

2006-01-10

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

Reexamination Certificate

active

06983727

ABSTRACT:
An intake manifold includes a permanent runner which provides airflow communication between a plenum volume and a plurality of engine cylinders. An active runner assembly retracts into and extends from the permanent runner assembly in response to a drive system which communicates with a controller to selectively change the length of the intake manifold assembly to optimize performance. The permanent runner assembly includes a plurality of fixed length passages and the active runner assembly includes a plurality of active runner passages. Each active runner passage telescopes in and out of a respective fixed length passage to vary the effective length between the plenum and the engine cylinder.

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Search report, United Kingdom, dated Jul. 4, 2003.

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