Internal-combustion engines – Multiple cylinder
Patent
1991-12-16
1992-10-20
Okonsky, David A.
Internal-combustion engines
Multiple cylinder
F02M 3510
Patent
active
051561166
ABSTRACT:
A method and apparatus is described for controlling the air supply in an internal combustion engine, in which, below a predetermined limiting value for the speed of the internal combustion engine, the air is drawn in via at least two long resonant intake pipes, each of which opens into in each case one of two partial collecting volumes of a resonant collecting receiver, the volumes being separated from one another via a separating element. Above the predetermined limiting speed, the two partial collecting volumes are connected to one another by opening the separating element. In order to be able to achieve a higher torque characteristic not only in the low and middle speed range but also in the high speed range, it is proposed to open the cross-section of a short intake pipe which connects the intake line to the resonant collecting receiver, this opening being performed simultaneously with the opening of the separating element.
REFERENCES:
patent: 4838215 (1989-06-01), Yasuda et al.
patent: 5063899 (1991-11-01), Hitomi et al.
MTZ Motortechnische Zeitschrift 51 (Jan. 1990), pp. 142-146; Micik et al.
Mercedes-Benz AG
Okonsky David A.
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