会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明公开
    • DEDICATED FIXED DUAL-PISTON HYDRAULIC ENGINE VALVE DRIVING DEVICE
    • EP4339426A1
    • 2024-03-20
    • EP22897041.4
    • 2022-04-27
    • Jiangsu Jointek Precision Machinery Co., Ltd
    • TANG, Hua Xue
    • F01L13/06F01L13/00F01L9/10F01L1/08
    • Provided is a special fixed dual-piston hydraulic engine valve driving device, including a special driving cam (19), a driver (4), a driving oil circuit (4-3), and a control valve (6), and when the control valve (6) is opened, a hydraulic linkage is maintained between a master piston (2) and a secondary piston (3); and when the control valve (6) is closed, the driving oil circuit (4-3) drains oil through the control valve (6). The engine valve driving device integrates both the master piston (2) and the secondary piston (3) onto the special driver (4), thereby reducing the consumption of engine oil; with the design of the special driving cam (19), an optimized design of the valve driving device enabling the separate independent operation of the special driving cam and a positive work valve mechanism is achieved, and the interference and influence of the valve driving device on the operation of the positive work valve mechanism are thus reduced; and the secondary piston (3) transmits a driving force to an actuated valve (15) completely in a movement direction of the valve, thereby preventing a lateral load of the actuated valve (15). The installing position of the driver (4) is not affected by the position of the actuated valve, which facilitates flexible arrangement of the driver.