PRESSURE CONTROL DEVICE

摘要

A pressure control device in which pulsation is reduced and an occurrence of noise etc. is prevented. A pressure regulator (1) has a housing (11) having a fuel inlet (18), a fuel outlet (19), and a fuel path (14) for communicating the fuel inlet and fuel outlet, a ball (12) placed in the fuel path (14), a seal section (17) having an opening (22) communicating with the fuel inlet (18) and closing the fuel path (14) when an edge (22a) of the opening (22) is in contact with the ball (12), and a valve spring (13) for urging the ball (12) toward the seal section (17). The valve spring (13) is placed inclined relative to a line (N) normal to a cross-section of the opening (22), and valve body pressing force is different depending on a portion of the opening section (22). When the valve is opened, the ball (12) moves positioned to the right side in the figure, and the left side in the figure of the opening (22) is opened.