Patent ID: 8240634

Claim:
A high-pressure valve assembly, comprising: a flange defining an axis; a valve body projecting into the flange and having a first stepped end section with an outside diameter smaller than an outside diameter of the valve body; a pressure chamber formed as a blind hole in the first stepped end section of the valve body, said blind hole extending in the direction of the axis; a static ring seal disposed proximate a transition between the valve body and the stepped end section for sealing the valve body against the flange; a spring-loaded closure member supported for movement in a direction of the axis on a second end of the valve body opposite the first stepped end section to form a suction valve; a spring-loaded tappet supported for movement in the pressure chamber in the direction of the axis in opposition to the movement of the spring-loaded closure member; and a channel formed in the valve body having one end porting into the pressure chamber and connecting the suction valve with the pressure chamber.