JPS649509A - Method and device for controlling load part pressure - Google Patents

Method and device for controlling load part pressure

Info

Publication number
JPS649509A
JPS649509A JP16407387A JP16407387A JPS649509A JP S649509 A JPS649509 A JP S649509A JP 16407387 A JP16407387 A JP 16407387A JP 16407387 A JP16407387 A JP 16407387A JP S649509 A JPS649509 A JP S649509A
Authority
JP
Japan
Prior art keywords
pressure
tank
fluid
controller
load part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16407387A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konan Electric Co Ltd
Original Assignee
Konan Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konan Electric Co Ltd filed Critical Konan Electric Co Ltd
Priority to JP16407387A priority Critical patent/JPS649509A/en
Publication of JPS649509A publication Critical patent/JPS649509A/en
Pending legal-status Critical Current

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  • Control Of Fluid Pressure (AREA)

Abstract

PURPOSE:To simply and effectively change the pressure of a load part and to constantly hold the load part to the pressure by using the pressure lower by a predetermined designated pressure difference than the designated pressure as a switching point, supplying a fluid when the pressure is below, using the pressure higher by an exhaust pressure difference as the switching point, and exhausting the fluid when the pressure is above to supply and exhaust and switch the fluid. CONSTITUTION:A controller 6 is connected to a power source to input a detecting signal from a pressure detector 7 for detecting the pressure of a tank 3 and input an electric signal for commanding the set pressure of the tank 3 from an external controller or the like 8 as an external command. In the controller 6, the set pressure according to the external command is compared with the detecting signal from the pressure detector and operated and an electromagnetic valve control signal is outputted. When the pressure in the tank 3 is lower than the set pressure according to the external command, the fluid is supplied to the tank 3 and when it is higher than the set pressure, the fluid of the tank 3 is exhausted by switching and controlling change over valves 4, 5. Thereby, the pressure change of the load can be rapidly switched to the command pressure and it can be held to a constant pressure with high accuracy.
JP16407387A 1987-07-02 1987-07-02 Method and device for controlling load part pressure Pending JPS649509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16407387A JPS649509A (en) 1987-07-02 1987-07-02 Method and device for controlling load part pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16407387A JPS649509A (en) 1987-07-02 1987-07-02 Method and device for controlling load part pressure

Publications (1)

Publication Number Publication Date
JPS649509A true JPS649509A (en) 1989-01-12

Family

ID=15786266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16407387A Pending JPS649509A (en) 1987-07-02 1987-07-02 Method and device for controlling load part pressure

Country Status (1)

Country Link
JP (1) JPS649509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012014607A1 (en) 2010-07-24 2012-02-02 コニカミノルタホールディングス株式会社 Near-infrared reflecting film and near-infrared reflecting body provided with same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012014607A1 (en) 2010-07-24 2012-02-02 コニカミノルタホールディングス株式会社 Near-infrared reflecting film and near-infrared reflecting body provided with same

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