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Fluid pressure control device

A technology of fluid pressure and control devices, applied in the direction of fluid pressure control, fluid pressure actuation devices, fluid pressure actuation system components, etc.

Pending Publication Date: 2022-07-29
SMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in the fluid control device described in U.S. Patent No. 10731679, the shut-off valve must be connected in series on the downstream side of the proportional pressure regulating valve, and the shut-off valve is provided in the flow path with a large flow rate. Therefore, there is a concern that the device will be large change

Method used

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Embodiment Construction

[0019] The fluid used in the present invention is a pressure fluid such as compressed air. In the following description, when using the words about the up-down direction, for convenience, it refers to the direction in a figure, and does not limit the actual arrangement|positioning of components, etc.. FIG.

[0020] The fluid pressure control device 10 according to the embodiment of the present invention is arranged between a fluid supply source and a fluid actuator (neither are shown). The fluid pressure control device 10 sets the pressure of the fluid supplied to the fluid actuator to a standby pressure lower than the operating pressure when the flow rate to the fluid actuator is lower than a predetermined value for a predetermined time. First, the configuration and function of the fluid pressure control device 10 for performing such control will be described.

[0021] like figure 1 As shown, the fluid pressure control device 10 includes a valve body 12 incorporating a supp...

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Abstract

Provided is a fluid pressure control device. A pilot pressure supply solenoid valve (36) is provided in a flow path connecting the inlet port (16) and the pilot chamber (48), a pilot pressure discharge solenoid valve (38) is provided in a flow path discharging the pressure fluid in the pilot chamber to the outside, and there is no flow path discharging the pressure fluid passing through the supply valve (26) to the outside.

Description

technical field [0001] The present invention relates to a fluid pressure control device for controlling the pressure of fluid supplied to a fluid actuator. Background technique [0002] Conventionally, there has been known a fluid pressure control device that adjusts a pressure fluid from a fluid supply source to a desired pressure and supplies it to a fluid actuator. For example, Japanese Patent Application Laid-Open No. 2002-243059 describes a method of controlling a pilot pressure acting on a diaphragm by using a solenoid valve for air supply and a solenoid valve for exhaust gas, and by using a solenoid valve provided integrally with the diaphragm The rod member is displaced to open and close the fluid pressure adjustment device of the supply valve body and the exhaust valve body. In this fluid pressure adjustment device, when the supply valve core is open, the supply port connected to the fluid supply source communicates with the pressure regulating port connected to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K31/40
CPCF16K1/00F16K31/402G05D16/2095G05D16/2053F15B11/064F15B21/048F15B13/0401F16K31/126F15B2211/51F15B2211/50554F15B2211/5158F15B2211/526F15B2211/6309F15B2211/6313F15B2211/8855F15B13/025F15B13/0433F15B19/005F15B2211/5753F15B2211/6316F15B2211/632F15B2211/67
Inventor 山城达将
Owner SMC CORP