Hydraulic tensioner for camshaft drive belt

摘要

The timing belt tensioner (20) is attached with one on a hinge point on the end of the engine block is pressed against the belt by a hydraulic cylinder (18) fitted to the engine block at the end of the main lubricant duct (23) through the block. The hydraulic cylinder is connected to the lubricant duct via a slot through the side of the cylinder and into the end of the duct. The slot has a restricted flow to maintain the hydraulic pressure. The fitting replaces the conventional plug fitted into the end of the duct.