An engine having a hydraulic chain tensioner system

摘要

An engine 10 is disclosed having a hydraulic chain tensioner system including a pressure regulator 14 interposed between an oil supply system of the engine 10 and a hydraulic chain tensioner 15. The pressure regulator 14 is operable to prevent the oil pressure supplied to the hydraulic chain tensioner 15 exceeding a predetermined preferred pressure thereby reducing the maximum load applied to a chain 19 being tensioned by the hydraulic chain tensioner 15.