Vertical type multi-cylinder internal combustion engine

Details Vertical type multi-cylinder internal combustion engine Vertical type multi-cylinder internal combustion engine

1993-05-26

1995-02-07

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Exhaust emission control

477111, 123443, F16H 5970

Patent

active

053871634

ABSTRACT:
An outboard motor having vertically spaced cylinders and wherein exhaust emission control is provided by providing a leaner than normal fuel/air mixture to the lower cylinders under certain conditions. In addition, the device provides enrichment when the engine is operating at a below normal condition and also provides an engine speed reduction if the engine is operating at a temperature above a desired maximum temperature. Both three cylinder inline and V-6 embodiments are depicted.

REFERENCES:
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patent: 4056931 (1977-11-01), Hata
patent: 4068637 (1978-01-01), Takamiya
patent: 4123901 (1978-11-01), Masaki et al.
patent: 4353208 (1982-10-01), Volker et al.
patent: 4735046 (1988-04-01), Iwai
patent: 4965997 (1990-10-01), Suzuki et al.
patent: 5050453 (1991-09-01), Yamaguchi
patent: 5239966 (1993-08-01), Yamagata et al.
patent: 5271368 (1993-12-01), Fuji et al.

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