JPS57116907A - Fluid equipment - Google Patents

Fluid equipment

Info

Publication number
JPS57116907A
JPS57116907A JP17331381A JP17331381A JPS57116907A JP S57116907 A JPS57116907 A JP S57116907A JP 17331381 A JP17331381 A JP 17331381A JP 17331381 A JP17331381 A JP 17331381A JP S57116907 A JPS57116907 A JP S57116907A
Authority
JP
Japan
Prior art keywords
discharging rate
pump
port
valve
cylinder
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
JP17331381A
Other languages
Japanese (ja)
Inventor
Kenji Masuda
Takeshi Horiuchi
Yasushi Nakajima
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Daikin Kogyo 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 Daikin Industries Ltd, Daikin Kogyo Co Ltd filed Critical Daikin Industries Ltd
Priority to JP17331381A priority Critical patent/JPS57116907A/en
Publication of JPS57116907A publication Critical patent/JPS57116907A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To enable making precise velocity control of a plurality of actuators in such a way that in a contrivance to control discharging rate from a discharging rate variable pump by means of a pressure control valve, responsibility to increase and decrease in the discharging rate of said pump may be improved.
CONSTITUTION: A discharging rate variable pump 1 is controlled with its discharging rate in such a way that a swash plate 2, etc. is displaced by means of a cylinder 4. Discharging fluid by means of the pump 1 is fed through flow direction control valves 10W10b to actuators 50W50b. Flow rate adjustment variable orifices 19W19b are provided on the valves 10W10b, differential pressure in the front and in the rear of each orifice is made stably by decompression type pressure control valves 43W43b, and a triple port type pressure control valve 30 is controlled by differential pressure in the front and in the rear of each orifice. And the cylinder 4 is connected to a secondary port 25 of said valve 30, and the cylinder 4 is made possible to be changed over and connected to a main flow circuit 8 which is connected to a primary port 24, or to a reservoir line which is connected to a port 26 by said valve 30.
COPYRIGHT: (C)1982,JPO&Japio
JP17331381A 1981-10-28 1981-10-28 Fluid equipment Pending JPS57116907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17331381A JPS57116907A (en) 1981-10-28 1981-10-28 Fluid equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17331381A JPS57116907A (en) 1981-10-28 1981-10-28 Fluid equipment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12588674A Division JPS5151682A (en) 1974-10-29 1974-10-29 RYUTAISOCHI

Publications (1)

Publication Number Publication Date
JPS57116907A true JPS57116907A (en) 1982-07-21

Family

ID=15958124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17331381A Pending JPS57116907A (en) 1981-10-28 1981-10-28 Fluid equipment

Country Status (1)

Country Link
JP (1) JPS57116907A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175604A (en) * 1983-03-19 1984-10-04 クラウス−マツフアイ・アクチエンゲゼルシヤフト Hydraulic type controller for two or more of working piston
JP2007057000A (en) * 2005-08-24 2007-03-08 Yanmar Co Ltd Hydraulic circuit
JP2007057001A (en) * 2005-08-24 2007-03-08 Yanmar Co Ltd Hydraulic device
JP2007247701A (en) * 2006-03-14 2007-09-27 Yanmar Co Ltd Hydraulic device
US7788915B2 (en) 2004-12-21 2010-09-07 Yanmar Co., Ltd. Hydraulic circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175604A (en) * 1983-03-19 1984-10-04 クラウス−マツフアイ・アクチエンゲゼルシヤフト Hydraulic type controller for two or more of working piston
US7788915B2 (en) 2004-12-21 2010-09-07 Yanmar Co., Ltd. Hydraulic circuit
JP2007057000A (en) * 2005-08-24 2007-03-08 Yanmar Co Ltd Hydraulic circuit
JP2007057001A (en) * 2005-08-24 2007-03-08 Yanmar Co Ltd Hydraulic device
JP2007247701A (en) * 2006-03-14 2007-09-27 Yanmar Co Ltd Hydraulic device
JP4728151B2 (en) * 2006-03-14 2011-07-20 ヤンマー株式会社 Hydraulic device

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