Patent · US Active

Valve drive train actuating device

US8230837B2 · kind B2 · utility

1Cited by

7References

7Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Marcus Hergert · Balingen, DE
Kai Kanning · Stuttgart, DE
Stefan Rudert · Unterschleißheim, DE

Key dates

Filing date	Feb 8, 2010
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Oct 31, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D13/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a valve drive train actuating device, particularly for an internal combustion engine, having at least one firing camshaft, which can be phase shifted relative to a crankshaft by a firing camshaft adjusting device and a decompression brake device comprising at least one brake cam and at least one decompression valve, the valve drive train actuating device comprises an adjusting device for adjusting a decompression valve drive actuating point in time depending on the speed of the crankshaft of the engine such that, with decreasing speed of the crankshaft, the brake cam actuating point is moved toward the upper dead center position of the crankshaft.

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