Valve actuation system

A valve actuation system is disclosed for use with an internal combustion engine. The valve actuation system may have a rocker shaft, a rocker arm pivotally mounted on the rocker shaft, at least one cam follower and a pushrod connecting the at least one cam follower to the rocker arm. The valve actuation system may also have a plurality of gas exchange valves, and a bridge connecting the rocker arm to the valves. The valve actuation system may further have at least one spring disposed around each of the valves and configured to bias each of the valves toward closed positions, and a rotocoil configured to rotatably connect the at least one spring to each of the valves. The rotocoil may have an internal chamfer at a bridge end with an angle of about 26-28 degrees. The at least one spring may have an assembled load of about 750-850 N. 公开了种与内燃机起使用的阀致动系统。该阀致动系统可具有摇臂轴、枢转地安装在摇臂轴上的摇臂、至少个凸轮从动件、以及将至少个凸轮从动件连接至摇臂的推杆。该阀致动系统还可具有多个气体交换阀和将所述摇臂连接至所述阀的桥接件。该阀致动系统可进步具有至少个弹簧和旋转线圈，该至少个弹簧设置成围绕所述阀的每个并且配置为使得所述阀的每个偏置朝向关闭位置，该旋转线圈配置为旋转地