Patent ID: 8322684
Filing Date: 2012-12-04
Classification: B60T,F16K,Y10T

Abstract:
1. An electromagnetically actuated valve, comprising: a solenoid including a coil that generates a magnetic field upon being energized; a tubular member made of a non-magnetic material and on an inner circumferential side of the coil; a movable valve body within the tubular member and movable in an axial direction of the tubular member by an attraction force that is generated upon energizing the coil to thereby open and close a fluid passage; a first member that is made of a resin material and includes a scat portion that is brought into contact with the movable valve body to close the fluid passage; a first biasing member that biases the movable valve body toward the seat portion; a second member between the seat portion and the movable valve body and including a fluid passage having a flow passage area smaller than a flow passage area of a fluid passage formed in the seat portion; and a second biasing member that biases the second member toward the movable valve body and has a biasing force smaller than a biasing force of the first biasing member, wherein the first member is a generally cup-shaped member and includes an outer annular wall on an outer circumferential side of the seat portion and a connecting wall that connects the seat portion and the outer annular wall with each other and forms a bottom of the cup-shaped member, and the seat portion is configured to project from the connecting wall toward the movable valve body, and the second member is disposed to cover the seat portion and thereby positioned in place in a radial direction of the seat portion.