The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1992
Filed:
Dec. 16, 1991
Dieter Scherenberg, Stuttgart, DE;
Mercedes-Benz AG, , DE;
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.