Patent · US Active

Valve train for internal combustion engines for actuating gas exchange valves

US8746194B2 · kind B2 · utility

2Cited by

7References

9Claims

0Family size

Assignee

IAV GmbH Ingenieurgesellschaft Auto und Verkehr · DE

Inventors

Andreas Werler · Zwickau, DE
Thomas Arnold · Winslow, US
Heiko Neukirchner · Chemnitz, DE
Joerg Wutzler · Zwickau, DE

Key dates

Filing date	Aug 3, 2010
Grant date	Jun 10, 2014
Priority date	—
Expiry date	Dec 18, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2013/0052
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve train for actuating a gas exchange valve of an internal combustion engine includes a camshaft configured to be driven by a crankshaft of an engine and including a camshaft tube. At least one cam support including a plurality of cam profiles is disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect to the camshaft. A switching shaft is disposed in the camshaft tube and is configured to rotate together with the camshaft tube. A dog operatively connects the at least one cam support to the switching shaft. A displacement piece is connected to the switching shaft and is configured to be rotationally engaged with and axially displaceable on the camshaft tube. The displacement piece is actuatable so as to rotate the switching shaft relative to the camshaft tube and displace the cam support relative to the camshaft tube using the dog.

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