TENSIONER WITH PISTON CONTAINING INTERNAL CHECK VALVE

• Main Authors: HUNT ADAM C, WILLIAMSON ROBERT G, FREEMANTLE PAUL, HONG SEONGDO, COBB KEITH B
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2020
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; ENGINEERING ELEMENTS AND UNITS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; THERMAL INSULATION IN GENERAL; WEAPONS

A hydraulic tensioner for an internal combustion engine for tensioning a span of a chain or a belt has a piston with an internal reservoir connected to a high pressure chamber through a check valve assembly. The check valve assembly has a disk seat formed by an internal bulge within the piston; a check valve retainer within the piston, and a moveable disk that is received between the disk seat formed by the internal bulge and the check valve retainer and is moveable between a first position and a second position, and a check valve spring that is received between the check valve disk and the check valve retainer. 一种用于张紧链条或皮带的跨距的内燃机的液压张紧器具有活塞，该活塞具有通过止回阀组件连接到高压腔的内部储器。止回阀组件具有由活塞内的内部凸起形成的盘座；活塞内的止回阀保持架，以及可移动盘，该可移动盘容纳在由内部凸起形成的盘座与止回阀保持架之间并且在第一位置与第二位置之间是可移动的，以及止回阀弹簧，该止回阀弹簧容纳在止回阀盘与止回阀保持架之间。