Hydraulic damper and a piston for the hydraulic damper assembly

A hydraulic damper assembly, comprising:

• a housing extending along a center axis between an opened end and a closed end, said housing defining a fluid chamber extending therebetween for containing a working fluid;
• a piston slidably disposed in said fluid chamber dividing said fluid chamber into a compression chamber and a rebound chamber;
• a piston rod extending along said center axis and coupled to said piston for moving said piston between a compression stroke and a rebound stroke;
• said piston having a compression surface and a rebound surface, said piston defining at least one compression channel, at least one rebound channel, and at least one additional channel, for allowing the working fluid to flow through said piston during said compression stroke and said rebound stroke;
• said at least one compression channel radially spaced from an exterior surface of said piston and extending from said compression surface to said rebound surface;
• said at least one rebound channel, radially and circumferentially spaced from said at least one compression channel, extending from said exterior surface toward said compression surface at an oblique angle relative to said center axis;
• said at least one additional channel, located between said center axis and said at least one compression channel extending along said piston toward said compression surface;
• a compression valve located on said rebound surface of said piston covering said at least one compression channel for limiting working fluid flow through said piston during said compression stroke;
• a rebound valve located in said compression chamber and covering said at least one rebound channel for limiting working fluid flow through said piston during said rebound stroke to provide a damping force during said rebound stroke;
• a proportional bleeding system located between said compression valve and said piston to establish a bleeding flow passage between said at least one rebound chamber and said additional channel for reducing operation harshness of the hydraulic damper assembly;
• and
• a compression valve seat extending outwardly from said rebound surface and in an abutment relationship with said compression valve;
• wherein said compression valve seat defines at least one slot in an alignment with said at least one compression channel and said at least one additional channel to establish said bleeding flow passage;
• wherein said rebound surface of said piston defines at least one orifice in communication with the at least one additional channel, so as to allow the working fluid to flow through said at least one additional channel and said at least one orifice and into said at least one compression channel via said proportional bleeding system.