force according to read conditions travel conditions and the like while a vehicle is traveling thereby improving ride comfort and control stability a flow of oil is controlled to generate a damping force and the damping force is simultaneously adjusted according to pressure in a pilot chamber the damping valve comprises an upper retainer communicating with a high pressure side and a main valve installed below the upper retainer the main valve comprises a valve body defining a pilot chamber a disk ring installed on a top surface of the valve body and a housing for containing the valve body and the disk ring and integrally confining the valve body and the disk ring by being curled at upper and lower ends of the housing application_number US 26871905 A description hereinafter a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings fig3 shows a damping force generating valve in a variable damping shock absorber according to the present invention and fig4 is an enlarged view of a main valve of the damping force generating valve according to the present invention as shown in fig3 the damping force generating valve 200 installed at a.