Patent · US Active

Exhaust valve mechanism for internal combustion engine

US8230831B2 · kind B2 · utility

6Cited by

1References

4Claims

0Family size

Assignee

Volvo Lastuaguar AB · SE

Inventors

Per Persson · Partille, SE
Hans Bondeson · Mölnlycke, SE
Anders Nobelius · Handen, SE
Johan Grankvist · Handen, SE

Key dates

Filing date	Aug 23, 2006
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Oct 12, 2030

Classification

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

Abstract

An exhaust valve mechanism for an internal combustion engine with at least one exhaust valve in every engine cylinder includes a main rocker arm mounted on a rocker arm shaft and a secondary rocker arm arranged on the main rocker arm and mounted on the rocker arm shaft for the activation of an exhaust brake function. A spring device is so arranged as to act between a fixed point on the engine and the secondary rocker arm, in such a way that the latter rocker arm is caused by the spring force to engage with the cam element of the camshaft.

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