Intake mixture heating device for internal combustion engine

Details Intake mixture heating device for internal combustion engine Intake mixture heating device for internal combustion engine

1977-10-31

1980-06-03

Lazarus, Ronald H.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123122AC, 261144, F02M 3100

Patent

active

042056403

ABSTRACT:
An intake manifold for a multi-cylinder internal combustion engine contains main intake passages leading from a main distribution chamber for supplying lean mixture to each cylinder. The intake manifold also has auxiliary intake passages leading from an auxiliary distribution chamber for supplying a rich mixture to each cylinder. Engine coolant is circulated through the intake manifold to act as heating means for the rich mixture and for part of the lean mixture. Another part of the lean mixture is not heated.

REFERENCES:
patent: 3908620 (1975-09-01), Maekawa
patent: 3965881 (1976-06-01), Sakurai
patent: 4086892 (1978-05-01), Marsee

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