because the hydraulic valve plunger automatic control valve clearance is zero gap, simultaneously may reduce the engine noise.
由于液压挺桿自动调节气门间隙为零间隙,同时可降低发动机噪声。
the safety valves pilot valve plunger driven in front of mouth;
其导阀口前面有导向柱塞;
using hydraulic valve plunger interior unique structural design, but automatic control timing mechanism transmission gap, transmission lift of cam change, punctual make and break tire valve.