Patent ID: 11971112
Assignee: CKD CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. An electromagnetic valve manifold, comprising:
an electromagnetic valve including a discharge port;
a manifold base including a placement surface on which the electromagnetic valve is placed and a discharge passage that is open in the placement surface and is connected to the discharge port; and
a check valve that permits fluid to flow from the discharge port to the discharge passage and prevents fluid from flowing from the discharge passage to the discharge port, wherein
the check valve includes:
a valve member;
a valve housing including a valve seat on which the valve member is seated; and
an urging member that urges the valve member toward the valve seat,

the valve housing includes:
a valve chamber that accommodates the valve member;
a peripheral wall that defines the valve chamber;
a valve hole that connects the valve chamber to the discharge port; and
a discharge opening that connects the valve chamber to the discharge passage,

the valve seat is part of the valve housing and is an annular portion around an opening of the valve hole that opens to the valve chamber, the valve seat protruding into the valve chamber,
the valve member is configured to move toward and away from the valve seat by reciprocating in the valve chamber in an axial direction of the peripheral wall,
the check valve is disposed in the discharge passage,
the discharge opening is formed in the peripheral wall so as to at least partially overlap with the valve seat in a direction orthogonal to a moving direction of the valve member; or extend, in the moving direction of the valve member, over at least a moving range of a surface of the valve member in contact with the valve seat,
the valve housing is a separate member from a valve body of the electromagnetic valve, and
the valve housing includes a flange portion held between the valve body and the manifold base.