Mando Corporation

Jun Hyuk Lim

Hark Joo Kim

Nam Ho Kim

Tae Ju Kim

The present invention relates to a body valve assembly for a shock absorber, which is capable of improving ride comfort by improving the degree of freedom of the adjustment in damping force and preventing the damping force from being rapidly changed.

Body valve assembly for shock absorber

In a piston valve assembly for a shock absorber, a main piston partitions a cylinder into an upper chamber and a lower chamber. Compression passages and rebound passages penetrate the main piston in a vertical direction. A first compression value forms a first compression chamber, and a top surface of a lower retainer is opened toward the upper chamber. Bypass passages are formed on an outer peripheral surface of the piston rod. A guide assembly surrounds an outer peripheral surface of the compression valve and the bottom surface of the compression valve, tightly contacts the bottom surface of the compression valve in a high-frequency section, and moves down toward the lower retainer in a low-frequency section. A lower disk assembly forms a second compression chamber in the lower retainer while covering the opened top surface of the lower retainer, communicates the second compression chamber with the lower chamber in the high-frequency section, and blocks the communication between the second compression chamber and the lower chamber in the low-frequency section due to the downward movement of the guide assembly.

Piston valve assembly for shock absorber

A shock absorber is provided. A first piston, a pilot valve, a second piston, and a rebound retainer are sequentially connected to a piston rod reciprocating within a cylinder. An upper portion of the second piston is provided inside the first piston. Due to a first compression chamber formed in the first piston, a second compression chamber formed in the second piston, a third compression chamber formed between the first piston and the second piston, and a fourth compression chamber formed in the rebound retainer, it is possible to improve a ride comfort by reducing a damping force over periods from an ultra-low-speed period to a high-speed period and it is possible to achieve the compact configuration and the cost reduction by reducing the overall length of the processing portion.

Growing community of inventors

Seongnam-si, South Korea

Jun Hyuk Lim