| 摘要 |
A load sensing proportioning valve having a piston for preventing abnormal noise is provided to control a resonance by raising a natural frequency through modifying the structure of the piston. A load sensing proportioning valve comprises a housing(30) and a piston(50) which moves in the housing. A return spring(35) is installed at an outer circumference of the piston so that the piston moves in the housing. A length of a sensing spring is changed according to loads of a vehicle. A link is connected to the sensing spring to transfer a variation of the sensing spring to the piston. One side of a ring valve(25) is positioned in an empty space formed in the housing, and the other side of the ring valve is in contact with the piston. An oil outlet(42) is connected to the space in the housing. An oil inlet is installed in the housing. |
