Engine performance improvement

Details Engine performance improvement Engine performance improvement

1994-07-05

1995-04-25

Yuen, Henry C.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02B 2700

Patent

active

054089620

ABSTRACT:
An apparatus for improving engine performance at wide-open throttle or full load by supercharging the induction system. An expanded/enlarged volume plenum is divided into two chambers. each containing a group of three openings for flowing air past inlet valves to three cylinders of a six cylinder engine, for example. A pair of adjustable length intake runners are connected to the upstream end of the plenum and are adjusted with changes in engine speed to resonantly tune the induction system for the speed changes to effect greater input of air to the cylinders. A valve can be opened to communicate the chambers with each other to further resonantly tune the system at intermediate speeds. At the higher engine speeds, resonant tuning in conjunction with the ram induction of air into the cylinders further increases the mass flow of air.

REFERENCES:
patent: 4690106 (1987-09-01), Nakayama et al.
patent: 4738229 (1988-04-01), Wada et al.
patent: 4829941 (1989-05-01), Hitomi et al.
patent: 4846117 (1989-07-01), Hitomi et al.
patent: 4889082 (1989-12-01), Hitomi et al.
patent: 4989553 (1991-02-01), Ueda et al.
patent: 5033268 (1991-07-01), Hitomi et al.
patent: 5080051 (1992-01-01), Hitomi et al.
patent: 5090200 (1992-04-01), Van Basshuysen et al.

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