Patent · US Expired

Hollow rocker-arm shaft for internal combustion engines

US5476075A · kind A · utility

5Cited by

5References

9Claims

0Family size

Assignee

Mercedes-Benz Group AG · DE

Inventors

Gerhard Doll · Ulm, DE
Helmut Seitz · Stuttgart, DE
Volker Keck · Stuttgart, DE
Walter Burbock · Stuttgart, DE
Peter Linden · Beimerstetten, DE

Key dates

Filing date	Sep 14, 1994
Grant date	Dec 19, 1995
Priority date	—
Expiry date	Sep 14, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L1/267
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention resides in a hollow rocker-arm shaft with multiple internal passages for an internal combustion engine which rocker-arm shaft consists of two shell sections forming circular segments which are welded together by a weld seam extending along the longitudinal edges of the circular segments and at least one dividing wall extends through the interior of the hollow shaft between the weld seams and divides the interior of the hollow shaft into at least two passages.

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