Patent · US Active

Valve train for internal combustion engines for actuating gas exchange valves

US8584632B2 · kind B2 · utility

2Cited by

7References

15Claims

0Family size

Assignee

IAV GmbH Ingenieurgesellschaft Auto und Verkehr · DE

Inventors

Lutz Stiegler · Radeberg, DE
Andreas Werler · Zwickau, DE
Joerg Wutzler · Zwickau, DE

Key dates

Filing date	May 16, 2012
Grant date	Nov 19, 2013
Priority date	—
Expiry date	May 19, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L13/0036
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve train device for switching a lift of gas exchange valves of an internal combustion engine includes a camshaft. A cam group includes at least two cams disposed on the camshaft. At least one lever is mounted axially displaceably relative to the camshaft and is in contact with one of the at least two cams and includes an actuation region for a direct or indirect actuation of at least one gas exchange valve. An adjustment unit is operatively connected to the lever so as to displace the lever. The unit includes at least one rotatable adjustment shaft, at least one sleeve having at least one guide track mounted on the shaft non-rotationally and axially displaceably, an engagement element fixed to a housing and engaging permanently in the at least one guide track and supporting the at least one sleeve with respect to the housing, and a further engagement element.

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