Device for controlling the idling speed of an internal combustio

Details Device for controlling the idling speed of an internal combustio Device for controlling the idling speed of an internal combustio

1995-06-07

1996-10-15

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

12333927, 123585, F02D 4106, F02D 902, F01L 700

Patent

active

055643884

ABSTRACT:
A device for controlling the idling speed of an internal combustion engine by controlling a quantity of operating medium which can be fed to the internal combustion engine from an operating medium source via at least two flow lines. A first valve operating area is controlled at a first valve opening by a first valve closing element, and a second valve opening area is controlled at a second valve opening by a second valve closing element. The first and the second valve closing elements can be adjusted by an actuator in such a way that the first valve opening and the second valve opening are arranged in series one behind the other between the operating medium source and the intake port of the internal combustion engine. The valve closing elements are coupled to one another in such a way that when they are actuated the first valve closing element always firstly clears a flow area at the first valve opening (34) and only then does the second valve closing element clear a flow area at the second valve opening (36).

REFERENCES:
patent: 4962737 (1990-10-01), Brand et al.
patent: 5381768 (1995-01-01), Togai et al.
SAE Paper No. 920294, "Development of Air-Assisted Injector System", Harada et al.

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