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    • 1. 发明申请
    • PNEUMATIC ENGINE VALVE ASSEMBLY
    • 气动发动机阀组件
    • WO1997009516A1
    • 1997-03-13
    • PCT/US1995011014
    • 1995-09-01
    • VALLVE, Serge
    • F01L03/10
    • F16F9/0418F01L1/465F01L3/10F02B3/06
    • Pneumatic valve spring members (10) provide replacement for mechanical springs used to seat engine valves in internal-combustion engines. A valve guide (16) sits atop the engine head (40), allowing the valve stem (12) of valve (14) to pass and reciprocate therethrough. At the distal end of the valve stem (12), a valve retainer (30) is attached to the valve stem (12). The valve retainer (30) is spaced apart from the valve guide (16). A bellows seal flexibly interconnects the valve retainer (30) with the valve guide (16). Upper and lower isolators (52, 50) serve to hold an air cushion about the valve stem (12) adjacent the bellows seal (42). The air cushion (60) serves to maintain and store pressure, lifting the distal end of the valve stem (12) toward the rocker arm (36).
    • 气动弹簧构件(10)为用于在内燃机中设置发动机气门的机械弹簧提供更换。 阀引导件(16)位于发动机头(40)顶部,允许阀(14)的阀杆(12)通过并往复运动。 在阀杆(12)的远端处,阀座(30)附接到阀杆(12)。 阀保持器(30)与阀引导件(16)间隔开。 波纹管密封件将阀保持器(30)与阀引导件(16)灵活地互连。 上和下隔离器(52,50)用于围绕靠近波纹管密封件(42)的阀杆(12)保持气垫。 气垫(60)用于维持和储存压力,将阀杆(12)的远端提升到摇臂(36)。