Patent · US Active

Valve gear for load change valves of internal combustion engines

US7383801B1 · kind B1 · utility

1Cited by

5References

4Claims

0Family size

Assignee

IAV GmbH Ingenieurgesellschaft Auto und Verkehr · DE

Inventors

Walter Siepmann · Warstein, DE
Jörg Wutzler · Zwickau, DE

Key dates

Filing date	Jan 3, 2007
Grant date	Jun 10, 2008
Priority date	—
Expiry date	Jan 3, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L1/34
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve gear arrangement for load change valves of internal combustion engines has an intermediate element that is pivoted on a lever in the cylinder head, to activate the load change valves. The intermediate element engages a cam of a camshaft and has fork-shaped parallel guides on guide cylinders, over the center axis of which a guide groove in the shape of a circular ring segment extends. A roller axle of a roller that engages the cam is displaceably guided in the guide groove. There are springs supported on the roller axle that force the roller axle against an adjustable guide element, counter to the acting forces, when it passes through a plateau region of the cam, and lies against the plateau region.

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