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:
Sep. 24, 2002
Filed:
Dec. 10, 2001
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 1/302 ;
U.S. Cl.
CPC ...
F02D 1/302 ;
Abstract
In order to be able to implement low loads at high rotational speeds in an internal combustion engine with electromagnetically activated intake valves, one intake valve of a cylinder is operated in the free flying phase, i.e. not held in the open position, and the other intake valve of the cylinder is correspondingly opened for a longer time. Alternatively, the first valve can also be held closed.