PILOT TYPE CHECK VALVE AND SUSPENSION DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent the pressure fluctuation (pressure pulsation) of oil in a hydraulic system in a system stop in a suspension device having a hydraulic height adjusting mechanism. SOLUTION: A free piston 83 energized by a spring 86 is mounted in a back-pressure chamber 88 of a poppet 61 of this pilot type check valve 45. The pressure fluctuation at the moment of closing the poppet 61 is absorbed by the free piston 83. COPYRIGHT: (C)2006,JPO&NCIPI