초록 ▼

A flow control valve unit includes a pressurized fluid inlet, a pressurized fluid outlet, a pressurized fluid chamber in which is positioned a stationary seat member, a partition member dividing the pressurized fluid chamber into a first section in constant communication with the inlet and a second

A flow control valve unit includes a pressurized fluid inlet, a pressurized fluid outlet, a pressurized fluid chamber in which is positioned a stationary seat member, a partition member dividing the pressurized fluid chamber into a first section in constant communication with the inlet and a second section that communicates with the outlet via a center opening in the stationary seat member, an orifice for communicating said first and second sections to each other, and a through hole formed in the partition member. A movable rod is positioned within the pressurized fluid chamber and extends through the through hole in the partition member. The movable rod has a sealing portion at one end for opening and closing the center opening in the stationary seat member during movement of the stationary member. A spring is operatively associated with the movable rod for urging the movable rod in a direction which causes the sealing portion to close the center opening. A movable magnetic body is disposed in the first section and is operatively connected to the movable rod, and an electric coil is provided for generating a magnetic force that urges the movable rod via the movable magnetic body in a direction to cause the sealing member to move away from and open the center opening.

대표청구항 ▼

[ What is claimed is:] [1.] A flow control valve unit comprising:a pressurized fluid inlet;a pressurized fluid outlet;a pressurized fluid chamber in which is positioned a stationary seat member;a partition member dividing said pressurized fluid chamber into a first section in constant communication

[ What is claimed is:] [1.] A flow control valve unit comprising:a pressurized fluid inlet;a pressurized fluid outlet;a pressurized fluid chamber in which is positioned a stationary seat member;a partition member dividing said pressurized fluid chamber into a first section in constant communication with said inlet and a second section that communicates with said outlet via a center opening in the stationary seat member;an orifice for communicating said first and second sections to each other;a through hole formed in said partition member;a movable rod positioned within the pressurized fluid chamber and extending through said through hole in the partition member, said movable rod having a sealing portion at one end for opening and closing said center opening in said stationary seat member during movement of the movable rod;a spring operatively associated with said movable rod for urging said movable rod in a direction which causes said sealing portion to close said center opening;a magnetic body disposed in said first section and operatively connected to said movable rod; andan electric coil to which flows electric current for generating a magnetic force that urges said movable rod via said movable magnetic body in an opening direction to cause the sealing member to move away from and open said center opening, the amount of movement of said movable rod in said opening direction being controlled based on the amount of electric current flowing to the electric coil and a pressure differential between the first section and the second section.