Patent · US Expired

Rocker assembly with interconnectable arms

US5680835A · kind A · utility

9Cited by

10References

13Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Wolfgang Ruffing · Unterschleißheim, DE
Uwe Hoyer · Oberding, DE

Key dates

Filing date	Feb 5, 1996
Grant date	Oct 28, 1997
Priority date	—
Expiry date	Feb 5, 2016

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2305/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rocker assembly includes a central arm and two outer arms supported on a rocker shaft portion, and a plurality of supporting brackets. The arms, which are actuated by respective cams, actuate at least two lifting valves of a cylinder of an internal combustion engine. Both outer arms may be independently hydraulically coupled by bolt elements to the central arm. Hydraulic ducts extend through the supporting brackets, the rocker shaft portion and the outer arms to communicate with the coupling bolts. The rocker arms, the rocker shaft portion, and the supporting brackets form a pre-assembly unit. The central arm may have a roller on which an associated cam rolls, with the bolt elements of the central arm being arranged coaxially to the roller inside the roller.

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