VALVE ACTUATION SYSTEM FOR ENGINE AND VALVE LIFTER AND ROCKER ARM FOR SAME

• Main Authors: GANESAN SELVAGANPATHI G, PIPIS JR JOHN STEPHEN
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: BLASTING; COMBUSTION ENGINES; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES; ENGINE PLANTS IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The invention relates to a valve actuation system for an engine and a valve lifter and a rocker arm for the same. A valve actuation system for an engine includes a rotatable camshaft, an injector actuation linkage, and a valve actuation linkage. The valve actuation linkage includes a valve lifter, a valve pushrod, and a rocker arm. At least one of a rocker arm center plane defined by the valve rocker arm or a lifter roller center plane defined by the valve lifter is spaced an offset distance from a pushrod axis, providing an increased contact width between an injector roller in the injector actuation linkage and one of a plurality of cam lobes of the camshaft. The valve lifter includes a fork defining a center plane spaced an offset distance from a center axis of the valve lifter. A rocker arm includes a screw bore offset relative to a rocker arm center plane. 本发明涉及用于发动机的阀致动系统及用于其的阀挺杆和摇臂。一种用于发动机的阀致动系统包括可旋转凸轮轴、喷射器致动联动机构。阀致动联动机构包括阀挺杆、阀推杆和摇臂。由阀摇臂限定的摇臂中心平面或由阀挺杆限定的挺杆滚轮中心平面中的至少一者与推杆轴线间隔偏移距离，从而提供喷射器致动联动机构中的喷射器滚轮与凸轮轴