| 主权项 |
1. A valve lash adjuster comprising:
a piston comprising a body having an open surface in a bottom and an oil passage extending from a rocker arm shaft to the open surface, such that oil flows through the oil passage, and an opening/closing unit disposed on the oil passage to selectively open the oil passage depending on a pressure of the oil; and a cylinder accommodating the piston, wherein the cylinder slides downward to form an oil chamber between an inner side surface thereof and the piston, the oil chamber containing the oil therein. |
