Air-fuel ratio control apparatus for internal combustion engine

Details Air-fuel ratio control apparatus for internal combustion engine Air-fuel ratio control apparatus for internal combustion engine

1994-03-16

1995-07-04

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4114

Patent

active

054291046

ABSTRACT:
An air-fuel ratio control apparatus for an internal combustion engine, for example, a V-type engine, for accurately controlling the air-fuel ratio of a first cylinder group and that of a second cylinder group. The air-fuel ratio control apparatus is arranged such that air fuel ratios of respective cylinder groups are controlled to be phase different to prevent changes in rotational speed and improve the effect of a trinary catalyst.

REFERENCES:
patent: 4703735 (1987-11-01), Minamitani et al.
patent: 4984551 (1991-01-01), Moser

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