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Spool valve

A slide valve, valve hole technology, applied in the direction of multi-port valve, valve device, valve details, etc., to achieve the effect of flow expansion

Inactive Publication Date: 2021-04-16
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, in the above-mentioned conventional spool valve, the annular concave surface 111 is formed on the portion where each port P, A1, A2, E1, E2 communicates with the valve hole 101, thereby increasing the gas flow rate, but because the concave surface The diameter (depth) of 111 is often restricted by the lateral width of the valve body 100, etc., so there is a limit to increasing the gas flow rate by enlarging the diameter of the concave surface.

Method used

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Examples

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Embodiment Construction

[0040] for the manner in which the invention is carried out

[0041] Figure 1-Figure 8 It is a figure which shows the 1st Embodiment of the spool valve concerning this invention. The spool valve 1 is configured as a manifold valve by being mounted on the manifold 40 via a gasket 41 together with other spool valves having the same structure.

[0042] Such as figure 1 As shown, the spool valve 1 is a 5-port valve and has a main valve unit 2 incorporating a spool 4 for opening and closing a flow path, and an electromagnetically operated pilot valve 3 for driving the spool 4 . The pressurized fluid controlled by the slide valve 1 is compressed air.

[0043] The valve body 5 of the above-mentioned main valve portion 2 is made into a square shape with a height of ( figure 1 up and down direction), length ( figure 1 left and right direction) and width (with figure 1 perpendicular to the paper surface). Five ports P, A1, A2, E1, and E2 for input, output, and exhaust are fo...

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PUM

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Abstract

The present invention obtains a spool valve in which the amount of a discharge fluid discharged from a discharge port is increased. An enlarged hole part (6a) is formed by forming an upper groove (8) and a lower groove (9) in an end of a valve hole (6) in which a spool (4) is accommodated, the lower groove (9) communicates with discharge ports (E1, E2), the spool (4) has discharge lands (4c, 4d) and discharge packings (10c, 10d) that open and close discharge flow channels (AE1, AE2) that interconnect output ports (A1, A2) and the discharge ports (E1, E2). When the discharge lands (4c, 4d) and the discharge packings (10c, 10d) have opened the discharge flow channels (AE1, AE2) due to displacement of the spool (4), the discharge lands (4c, 4d) and the discharge packings (10c, 10d) are positioned inside the enlarged hole part (6a), whereby the discharge flow channels (AE1, AE2) and the discharge ports (E1, E2) intercommunicate through the enlarged hole part (6a).

Description

technical field [0001] The present invention relates to a slide valve which opens and closes flow passages between a plurality of ports by a spool sliding in a valve hole. Background technique [0002] A spool valve that opens and closes a flow path between a plurality of ports by a spool sliding in a valve hole is known, for example, as disclosed in Patent Document 1, Patent Document 2, and the like. [0003] Conventional spool valves, usually, have such Figure 13 structure as shown. This spool valve is a 5-port valve, and inside a valve body 100 having a plurality of ports P, A1, A2, E1, E2, there is a valve hole 101 communicating with the above-mentioned ports P, A1, A2, E1, E2. In the hole 101 , a spool 102 is slidably accommodated in the axis L direction. Piston holders 103 and 104 are installed at one end and the other end of the valve main body 100, and pilot pistons 105 and 106 are respectively accommodated inside each piston holder 103 and 104. Acting on the abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K27/00F16K31/363
CPCF16K11/0708F16K27/041F15B13/0814F15B13/0839F15B13/0871F15B13/0402F16K11/07F16K27/00F16K31/363F16K11/0712
Inventor 高田芳行芳村亲一吉田胜松村宪一诸富洋一
Owner SMC CORP