NOVELTY - A transition zone is formed between a large diameter portion and a small diameter portion of a valve stem (26). A conical central opening formed on a valve head (78) sealingly mates with the transition zone surface permitting the valve head to tilt at an angle orthogonally from an axis of the valve stem.    USE - For modulating fluid flow for internal combustion (IC) engine of vehicle and hydrogen fuel cell.    ADVANTAGE - Obtains leak free mating surface by forming smooth and identical conical surfaces of the valve head and the valve seat and automatically guiding the valve head to mate with the seat by permitting tilting of the valve head. Uses independent spring for solenoid, valve stem bearing and valve head, thereby optimizes the functions of the springs.    DETAILED DESCRIPTION - The two way poppet valve (60) comprises a valve base assembly (62) formed with a chamber (70) and a chamber (72) connected by a port (74), valve assembly (64), an actuator assembly (66) and a valve position sensor (68). The port is formed with a valve seat (76) at the edge for sealingly receiving the valve head. The valve head is formed with a conical sealing periphery (79) which mates with the corresponding conical surface of the valve seat. A stepped opening (80) is formed in the valve base assembly with a diameter 0.2 mm more than the diameter of a radially compliant valve stress bearing (82) permitting floating of the valve stress bearing inside the opening. An axial lobe (84) formed in the bearing receives the valve stem. The step of the opening forms a planer shoulder (86) onto which a lower surface (88) of the bearing is biased to form a face seal by a spring (90). A compression spring energizes the valve head against the transition zone surface. The spring is retained by a spring retainer held by the valve stem in a circumferential groove. The opening is formed with a flared flange which flares out from the small diametered portion of the stem at a predetermined angle equal to 5degrees or less corresponding to the maximum angle of tilt of the valve head.    DESCRIPTION OF DRAWING(S) - The figure shows elevational cross section of two way poppet valve.    Valve stem (26)    Poppet valve(62) Valve base assembly (60)    Valve assembly (64)    Actuator assembly (66)    Valve position sensor (68)    First chamber (70)    Second chamber (72)    Port (74)    Valve seat (76)    Valve head (78)    Conical sealing periphery (79)    Opening (80)    Valve stem bearing (82)    Axial lobe (84)    Planar shoulder (86)    Lower surface (88)    Spring (90)