Integrated multiple valve manifold

Patent metadata

Field	Value
Publication number	US-10823299-B2
Application number	US-201615735221-A
Country	US
Kind code	B2
Filing date	Jun 20, 2016
Priority date	Jun 24, 2015
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

An integrated multiple valve manifold that is reduced in size and weight by integrally incorporating a plurality of valve mechanisms in one manifold. The one manifold, which is formed of an extruded material through which a fluid supply hole and fluid discharge holes extend, includes a plurality of valve holes each of which communicates with the fluid supply hole and the fluid discharge holes by directly intersecting both of the fluid supply hole and the fluid discharge holes, output ports that are formed so as to individually communicate with the valve holes, spools that are slidably inserted into the valve holes, and electromagnetic pilot valves that are individually attached to one ends or both ends of the valve holes.

First claim

The invention claimed is:

1. An integrated multiple valve manifold comprising:
one manifold that is formed of an extruded material through which a fluid supply hole and a fluid discharge hole extend, the manifold having a longitudinal direction in which the fluid supply hole and the fluid discharge hole extend, a transverse direction perpendicular to the longitudinal direction, and a vertical direction perpendicular to both of the longitudinal direction and the transverse direction;
a plurality of valve holes that extend through the manifold in the transverse direction, each of the plurality of valve holes directly communicating with the fluid supply hole and the fluid discharge hole by intersecting both of the fluid supply hole and the fluid discharge hole;
output ports that are formed in at least one of an upper surface and a lower surface of the manifold so as to individually communicate with the plurality of valve holes;
spools that are slidably inserted into the plurality of valve holes respectively and switch flow paths that connect the output ports, the fluid supply hole, and the fluid discharge hole; and
electromagnetic pilot valves that are individually attached to one or both ends of the valve holes to drive the spools,
wherein the fluid supply hole and the fluid discharge hole of the manifold have a non-circular cross-sectional shape and each include a long hole portion having a constant hole width in a part of a cross section;
wherein the long hole portion of the fluid supply hole and the long hole portion of the fluid discharge hole intersect the valve holes; and
wherein vertical lengths of portions where the long hole portions of the fluid supply hole and the fluid discharge hole intersect each of the valve holes are each smaller than an inside diameter of the valve hole.

2. The manifold valve according to claim 1 , wherein the fluid supply hole and the fluid discharge hole are formed at positions that are different from each other in the vertical direction of the manifold, and the long hole portion of the fluid supply hole and the long hole portion of the fluid discharge hole extend opposite to each other in the vertical direction of the manifold, and intersect the valve holes from directions vertically opposite to each other.

3. The manifold valve according to claim 2 , wherein, at positions where the long hole portions of the fluid supply hole and the fluid discharge hole intersect each of the valve holes, arc-shaped recesses having a diameter larger than the inside diameter of the valve hole are formed so as to be coaxial with the valve hole.

4. The manifold valve according to claim 1 , wherein the electromagnetic pilot valves are attached to a side surface of the manifold via adapter plates, the adapter plates include drive pistons that are in contact with end portions of the spools and drive pressure chambers that cause pilot fluid to act on the drive pistons, and the drive pressure chambers are connected to the fluid supply hole via the electromagnetic pilot valves.

5. The manifold valve according to claim 4 , wherein at least one of the valve holes includes an electromagnetic pilot valve of the electromagnetic pilot valves attached to one end of the at least one of the valve holes and an end plate attached to an other end of the at least one of the valve holes, the end plate includes a recovery piston that is in contact with the ends portion of the spool and a recovery chamber that causes pilot fluid to act on the recovery piston, the recovery piston has a diameter smaller than a diameter of the drive piston, and the recovery pressure chamber always communicates with the fluid supply hole.

Assignees

• Smc Corp

Inventors

• Miyazoe Shinji
• Noguchi Kazuhiro

Classifications

• F15B13/0807

  Manifolds · CPC title

• F15B13/0817

  Multiblock manifolds · CPC title

• F16K11/22 Primary

  with an actuating member for each valve, e.g. interconnected to form multiple-way valves · CPC title

• F16K27/048

  Electromagnetically actuated valves · CPC title

• F16K11/07 Primary

  with cylindrical slides · CPC title