Fuel characteristic detecting system for internal combustion eng

Details Fuel characteristic detecting system for internal combustion eng Fuel characteristic detecting system for internal combustion eng

1995-03-22

1996-03-19

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

73116, 123494, F02D 4100

Patent

active

054996074

ABSTRACT:
To detect the volatility of fuel accurately and speedily, a system for an internal combustion engine is arranged to gradually increase only the fuel supply quantity for a specified cylinder, while monitoring a variation of a combustion pressure in the specified cylinder, until the variation exceeds a predetermined level. The amount of fuel increase (such as AFR) obtained at the time the variation exceeds the predetermined level is used as a parameter representing the volatility of the fuel.

REFERENCES:
patent: 4905649 (1990-03-01), Washino et al.
patent: 5191869 (1993-03-01), Kamioka et al.
patent: 5363314 (1994-11-01), Kobayashi et al.
patent: 5419296 (1995-05-01), Yamaura

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