Intake system for an automotive engine

Details Intake system for an automotive engine Intake system for an automotive engine

1984-05-11

1985-10-08

Lall, Parshotam S.

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123336, F02M 3510

Patent

active

045453470

ABSTRACT:
An intake system for an automotive engine having cylinders, primary intake ports communicated with the cylinders, and secondary intake ports communicated with the cylinders. Each of the primary and secondary intake ports is communicated with a corresponding cylinder at a common intake valve. A primary intake manifold communicated with the primary intake ports and a secondary intake manifold communicated with the secondary intake ports are provided. A control valve is provided in each branch of the secondary intake manifold for controlling a counter flow of induced mixture. A vacuum operated actuator opens the control valve in dependency on an increase of engine speed and load on the engine.

REFERENCES:
patent: 4196701 (1980-04-01), Tamura et al.
patent: 4231339 (1980-11-01), Matsumoto et al.
patent: 4271801 (1981-06-01), Yamakawa et al.
patent: 4449505 (1984-05-01), Tezuka et al.

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