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:
Mar. 10, 1992
Filed:
Dec. 19, 1990
FEV Motorentechnik GmbH & Co. KG, Aachen, DE;
Abstract
An intake and fuel/air mixing system for multi-cylinder externally ignited internal combustion engines with at least two inlet valves per cylinder, at least two separate intake pipe arms per cylinder assigned to the inlet valves, and fuel injection. The first intake pipe arms per cylinder are combined into a first group and other intake pipe arms per cylinder are combined into at least one other group. Each group is assigned one throttling member. The first group comprises a common fuel injection, and one injection each is assigned to the intake pipe arms or inlet ports of the other group or other groups. The throttling members of the individual groups are controlled in such a manner that for the region of low air flow rates the first group opens first and the other group or other groups are opened as a function of the speed and load with higher air flow rates.