Intake system for an automotive engine

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

1984-05-11

1985-01-22

Cross, E. Rollins

Internal-combustion engines

Multiple cylinder

123308, 123 52MB, 123432, F02B 2902, F02B 3100

Patent

active

044944934

ABSTRACT:
An intake system for an automotive engine having cylinders, primary intake ports communicated with the cylinders, 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 first valve is provided in each branch of the secondary intake manifold for preventing a counter flow of inducted mixture. A bypass is provided at a position downstream of the first valve for communicating the primary intake manifold with the adjacent secondary intake manifold, and a second valve is provided to be operated to open the bypass when load on the engine exceeds a predetermined partial load.

REFERENCES:
patent: 4181105 (1980-01-01), Takemoto
patent: 4240387 (1980-12-01), Motosugi et al.
patent: 4270500 (1981-06-01), Nakagawa et al.
patent: 4347816 (1982-09-01), Saito et al.

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