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:
Nov. 10, 1998
Filed:
Feb. 28, 1997
Carsten Espe, Thalmassing, DE;
Mathias Scheytt, Neutraubling, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A variable air intake device for an internal combustion engine includes a first manifold, air intake pipes for connecting the first manifold to individual cylinders of the internal combustion engine to supply intake air, and a second manifold connected to the air intake pipes. The second manifold has a portion between the first manifold and the cylinders. The portion has further mutually closely adjacent air intake pipes. The further air intake pipes have walls with mutually adjacent ports and the further air intake pipes have bearing collars. A closing device has shafts and closing elements in the form of elongate bodies in the vicinity of the bearing collars. Each of the elongate bodies is rotatably mounted as a flap on a respective one of the shafts for closing and opening the ports as a function of a parameter of the internal combustion engine.