Fuel injector control utilizing fuel film flow parameters

Details Fuel injector control utilizing fuel film flow parameters Fuel injector control utilizing fuel film flow parameters

1993-08-09

1995-04-11

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02M 5100

Patent

active

054048567

ABSTRACT:
A fuel injection control system for an internal combustion engine which compensates for intake port and intake valve wall wetting is disclosed. The system compensates for fuel film flow on the wall to maintain a substantially constant air/fuel ratio during acceleration and deceleration. Physical characteristics of the air and fuel used in engine combustion, intake manifold pressure, and engine speed are processed by the engine control to control the amount of fuel injected by the fuel injector with a compensation for unvaporized fuel on intake port surfaces.

REFERENCES:
patent: 5190020 (1993-03-01), Cho
patent: 5215061 (1993-06-01), Ogawa et al.
patent: 5257607 (1993-11-01), Gillespie
patent: 5263455 (1993-11-01), Iwai et al.
patent: 5278762 (1994-01-01), Kawamura
"Spray/Wall Interactions Simulation", by H. Servati et al., SAE Technical Paper #890566, International Congress and Exposition, Detroit, Mich., Feb. 27-Mar. 3, 1989, 9 pgs.

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