Abstract: An internal type electronically controlled valve assembly includes a main poppet retainer formed in a disc shape with a rim protruding downward and disposed horizontally between a main poppet and a control disk. The internal type electronically controlled valve assembly is configured such that, during a compression stroke, a working fluid introduced through a hollow hole of a main sheet passes between the control disk and the main poppet retainer, reducing the pressure, and then flows into a pilot passage formed in the main poppet, thereby significantly reducing the pressure of a compression pilot chamber.

Abstract: A damping force adjustment device is provided. A damping force adjustment device comprises a pilot poppet raised and lowered by a magnetic force and a main poppet in which at least a portion of the pilot poppet is accommodated. Moreover, the damping force adjustment device comprises an elastic unit between at least a portion of an outer peripheral surface of the pilot poppet and an inner peripheral surface of one region of the main poppet where the pilot poppet is accommodated.

Abstract: In an outer housing and a damping force adjustment unit constituting a damping force variable valve assembly and a damping force variable shock absorber of the present disclosure, a main flow path through which fluid flows during compression and extension strokes, a first auxiliary flow path which allows fluid flow only in soft mode during the compression and extension strokes and is closed in hard mode, and a second auxiliary flow path which allows fluid flow for compression pressure adjustment only in the hard mode during the compression stroke are formed. The damping force adjusting unit includes a check valve unit that selectively opens the second auxiliary flow path.

Abstract: An internal type electronically controlled valve assembly includes a main poppet retainer formed in a disc shape with a rim protruding downward and disposed horizontally between a main poppet and a control disk. The internal type electronically controlled valve assembly is configured such that, during a compression stroke, a working fluid introduced through a hollow hole of a main sheet passes between the control disk and the main poppet retainer, reducing the pressure, and then flows into a pilot passage formed in the main poppet, thereby significantly reducing the pressure of a compression pilot chamber.

Abstract: A solenoid valve includes a valve case formed with an opening through which a fluid can flow and having an inner space formed therein, a valve body positioned at an upper side of the valve case, a driver configured to generate a magnetic field toward an inner side of the valve body, a rod configured to be vertically movable by the driver, a seat installed on a lower end of the rod to move according to movement of the rod, a core in contact with the seat to move according to movement of the seat, and a check valve surrounding a periphery of the core and disposed at a lower side of the valve body.

Abstract: An electronically controlled internal damper includes an outer housing reciprocated in a cylinder and partitioning the cylinder into an upper chamber and a lower chamber, an inner housing disposed inside the outer housing and forming a main flow path which makes the upper chamber and the lower chamber of the cylinder communicate with each other, a main poppet disposed in the inner housing to be movable up and down, thus opening or closing the main flow path, a pilot poppet configured such that at least a portion thereof is accommodated in an upper portion of the main poppet and adjusting an opening force of the main flow path according to a control current applied to a valve, and a soft valve coupled to a lower portion of the outer housing.

Abstract: Disclosed is a variable damping force shock absorber including a tube cylinder having an inner tube filled with a fluid and an outer tube, a valve housing coupled to a piston rod in the inner tube and having a connection flow path formed therein, a first piston valve coupled to the outside of the valve housing to partition the inner tube into a compression chamber and a rebound chamber, and a second piston valve provided inside the valve housing, wherein the valve housing includes a magnet provided at an upper portion thereof and connected to the piston rod, and a plunger disposed between the magnet and the second piston valve at a lower portion thereof to selectively open and close the connection flow path by a magnetic field of the magnet, and wherein the fluid passes only through the first piston valve when the plunger closes the connection flow path, and the fluid passes through the first piston valve and the second piston valve when the plunger opens the connection flow path.

Abstract: Disclosed is a variable damping force shock absorber including a tube cylinder having an inner tube filled with a fluid and an outer tube, a valve housing coupled to a piston rod in the inner tube and having a connection flow path formed therein, a first piston valve coupled to the outside of the valve housing to partition the inner tube into a compression chamber and a rebound chamber, and a second piston valve provided inside the valve housing, wherein the valve housing includes a magnet provided at an upper portion thereof and connected to the piston rod, and a plunger disposed between the magnet and the second piston valve at a lower portion thereof to selectively open and close the connection flow path by a magnetic field of the magnet, and wherein the fluid passes only through the first piston valve when the plunger closes the connection flow path, and the fluid passes through the first piston valve and the second piston valve when the plunger opens the connection flow path.