Abstract: Based on 3D printing technology, a cylinder head assembly of rotary valve engine was developed and trial- produced in this paper. The structure of the assembly, the lubrication system, ...

Hyundai and Kia, which were plagued by vehicle thefts — particularly in Milwaukee for several years — will soon offer free ignition cylinder repairs to all eligible vehicle owners who request them.

Luke Diaz is a freelance military writer with experience with active duty experience in the US Navy as well as defense and industrial engineering. He is a former Naval Flight Officer who performed ...