Hollow rocker-arm shaft for internal combustion engines

摘要

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.