Nissan Motor Company Limited

Aichi Machine Industry Co., Ltd.

Syousabu Ura

Makoto Yasuda

Masami Kato

Isaya Matsuo

Munehiro Sagata

Shuichi Nishimura

In order to minimize the supercharging effect from the cylinder to cylinder and to maximize the efficiency of the inertia supercharging effect over essentially the whole engine speed range, first and second elongate collectors which communicate with separate banks of cylinders are interconnected at essentially their mid points by a connection tube having a selected length and cross-sectional area. An engine speed responsive valve disposed in the tube or pipe selectively induces the situation wherein quasi separate induction systems are defined for each bank of cylinders or a single enlarged system is established.

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Fujisawa, Japan

Syousabu Ura