JPS5527510A - Apparatus for accumulating pressure in accumulator - Google Patents

Apparatus for accumulating pressure in accumulator

Info

Publication number
JPS5527510A
JPS5527510A JP9843978A JP9843978A JPS5527510A JP S5527510 A JPS5527510 A JP S5527510A JP 9843978 A JP9843978 A JP 9843978A JP 9843978 A JP9843978 A JP 9843978A JP S5527510 A JPS5527510 A JP S5527510A
Authority
JP
Japan
Prior art keywords
oil
chamber
accumulator
balance piston
pressure
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
JP9843978A
Other languages
Japanese (ja)
Inventor
Jiro Fukui
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.)
Tadano Ltd
Original Assignee
Tadano Iron Works 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 Tadano Iron Works Co Ltd filed Critical Tadano Iron Works Co Ltd
Priority to JP9843978A priority Critical patent/JPS5527510A/en
Publication of JPS5527510A publication Critical patent/JPS5527510A/en
Pending legal-status Critical Current

Links

Landscapes

  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To protect accumulator from shocks, by connecting a balance piston valve in the oil feeding circuit, connecting an accumulator to a vent chamber of said balance piston valve, and communicating the vent chamber and a tank circuit together by a valve neans.
CONSTITUTION: During the while when oil pump is not operated and therefore hydraulic pressure is not acted in oil feeding circuit 10, balance piston 38 of balance piston valve 33 is displaced to the right by spring 41 so that oil feeding circuit 10 is blocked. In this state, if oil pump is set operation and hydraulic oil is fed into oil chamber 43 of balance piston valve 33, hydraulic pressure in chamber 40 is raised so that balance piston 38 is moved to the left. Resultantly, oil in chamber 40 leaks into vent chamber 39 via throttle 48, so that pressure in chamber 39 is raised. Here, if pressure in the vent chamber 39 is higher than pressure in accumulator 30, check valve 50 is opened and pressure oil in vent chamber 39 is supplied to the accumulator.
COPYRIGHT: (C)1980,JPO&Japio
JP9843978A 1978-08-11 1978-08-11 Apparatus for accumulating pressure in accumulator Pending JPS5527510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9843978A JPS5527510A (en) 1978-08-11 1978-08-11 Apparatus for accumulating pressure in accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9843978A JPS5527510A (en) 1978-08-11 1978-08-11 Apparatus for accumulating pressure in accumulator

Publications (1)

Publication Number Publication Date
JPS5527510A true JPS5527510A (en) 1980-02-27

Family

ID=14219802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9843978A Pending JPS5527510A (en) 1978-08-11 1978-08-11 Apparatus for accumulating pressure in accumulator

Country Status (1)

Country Link
JP (1) JPS5527510A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086603U (en) * 1983-04-28 1985-06-14 株式会社タダノ Accumulator pressure accumulation circuit
WO2011058681A1 (en) * 2009-11-10 2011-05-19 川崎重工業株式会社 Hydraulic pressure control device
CN102691681A (en) * 2012-06-26 2012-09-26 重庆键英液压机电有限公司 Novel three-point type bending machine hydraulic system with quick energy conservation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086603U (en) * 1983-04-28 1985-06-14 株式会社タダノ Accumulator pressure accumulation circuit
JPH0124407Y2 (en) * 1983-04-28 1989-07-25
WO2011058681A1 (en) * 2009-11-10 2011-05-19 川崎重工業株式会社 Hydraulic pressure control device
JP2011102608A (en) * 2009-11-10 2011-05-26 Kawasaki Precision Machinery Ltd Hydraulic pressure control device
CN102656372A (en) * 2009-11-10 2012-09-05 川崎重工业株式会社 Hydraulic pressure control device
KR101381072B1 (en) * 2009-11-10 2014-04-04 카와사키 주코교 카부시키 카이샤 Hydraulic pressure control device
CN102656372B (en) * 2009-11-10 2015-01-07 川崎重工业株式会社 Hydraulic pressure control device
US9217446B2 (en) 2009-11-10 2015-12-22 Kawasaki Jukogyo Kabushiki Kaisha Hydraulic controller
CN102691681A (en) * 2012-06-26 2012-09-26 重庆键英液压机电有限公司 Novel three-point type bending machine hydraulic system with quick energy conservation
CN102691681B (en) * 2012-06-26 2015-03-25 重庆键英液压机电有限公司 Three-point type bending machine hydraulic system with quick energy conservation

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