Patent · US Active

Internal combustion engine

US7823559B2 · kind B2 · utility

3Cited by

4References

12Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Daniel Böhme · Tauberbischofsheim, DE
Markus Loffler · Unterlüß, DE
Siegfried Sumser · Stuttgart, DE

Key dates

Filing date	Feb 9, 2009
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Feb 9, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In an internal combustion engine including a camshaft for operating inlet and outlet valves of the engine with lift curves EV, AV of the inlet and the outlet valves determined by the shape of cams of the camshaft, an additional auxiliary cam which acts on the outlet valve is arranged on the camshaft, as a result of which a phase-offset auxiliary lift curve AVZ is impressed onto the outlet valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.