Engine control system for an engine coupled to a fuel vapor reco

Details Engine control system for an engine coupled to a fuel vapor reco Engine control system for an engine coupled to a fuel vapor reco

1997-04-03

1998-10-20

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Air/fuel ratio prior to combustion responsive means

F02D 4100

Patent

active

058231714

ABSTRACT:
Air is purged through a fuel vapor recovery system to induct a mixture of purged air and fuel vapor from the fuel vapor recovery system into an engine air/fuel intake. An air/fuel vapor ratio of the inducted mixture is provided from a hydrocarbon sensor positioned in the engine air/fuel intake. Fuel vapor flow is then calculated and this calculation used to adjust fuel delivered to the engine to maintain a desired lean air/fuel ratio.

REFERENCES:
patent: 4924837 (1990-05-01), Chujo et al
patent: 5048493 (1991-09-01), Orzel et al.
patent: 5201303 (1993-04-01), Kojima
patent: 5333591 (1994-08-01), Korsmeier et al.
patent: 5363832 (1994-11-01), Suzumura et al.

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