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:
Feb. 27, 2018
Filed:
Dec. 04, 2015
Mahle International Gmbh, Stuttgart, DE;
Patrick Altherr, Stuttgart, DE;
Rolf Kirschner, Esslingen, DE;
Mahle International GmbH, , DE;
Abstract
An adjustable camshaft of an internal combustion engine may include an outer shaft and an inner shaft arranged coaxially to the outer shaft and rotatable over a predefined angle. At least one first cam may be connected rotationally fixedly to the inner shaft. A second cam may be arranged beside the first cam and may be connected rotationally fixedly to the outer shaft. The first cam and the second cam may each be operatively associated with a common valve. Rotation of the first cam relative to the second cam may impart an extension of a valve opening time of the valve. The first cam and the second cam may each include an identical circular segment section in an elevated region of valve lift. The circular segment section of the first cam and the second cam may merge without interruptions during rotation about the predefined angle range.