[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5635804A - Compound oil pressure circuit - Google Patents

Compound oil pressure circuit

Info

Publication number
JPS5635804A
JPS5635804A JP11182779A JP11182779A JPS5635804A JP S5635804 A JPS5635804 A JP S5635804A JP 11182779 A JP11182779 A JP 11182779A JP 11182779 A JP11182779 A JP 11182779A JP S5635804 A JPS5635804 A JP S5635804A
Authority
JP
Japan
Prior art keywords
double acting
cylinder
acting cylinder
pressure
double
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.)
Granted
Application number
JP11182779A
Other languages
Japanese (ja)
Other versions
JPH0228725B2 (en
Inventor
Masahiro Yano
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.)
Sanyo Kiki Co Ltd
Original Assignee
Sanyo Kiki 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 Sanyo Kiki Co Ltd filed Critical Sanyo Kiki Co Ltd
Priority to JP11182779A priority Critical patent/JPH0228725B2/en
Publication of JPS5635804A publication Critical patent/JPS5635804A/en
Publication of JPH0228725B2 publication Critical patent/JPH0228725B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To improve the simultaneous operating characteristic by letting the back oil from the second cylinder flow through to a flow rate control mechanism in accordance with expansive and contracting motion of the first cylinder, and releasing part of the pressure oil for the second cylinder through a throttle mechanism to the tank.
CONSTITUTION: At the expansion position of a directional control valve 3 for the first double acting cylinder, a flow rate control mechanism 26 is arranged which is operated by pressure of the pressure oil supplied from the first double acting cylinder to the second double acting cylinder 2 and which controls the back oil from the second double acting cylinder 2. A throttle mechanism 14 is installed in the divergent line 13 through which a part of the pressure oil to be delivered from the first double actihg cylinder 1 to the second double acting cylinder 2 is released to the tank at the time of contraction of the first double acting cylinder. Thereby, violent expansion of the first double acting cylinder 1 due to increase of the loads on both cylinders 1, 2 can be prevented as well as generation of surging pressure is prevented at the time of contraction of the first double acting cylinder 1. Accordingly the pressure loss is reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP11182779A 1979-09-01 1979-09-01 FUKUGOYUATSUKAIRO Expired - Lifetime JPH0228725B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11182779A JPH0228725B2 (en) 1979-09-01 1979-09-01 FUKUGOYUATSUKAIRO

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11182779A JPH0228725B2 (en) 1979-09-01 1979-09-01 FUKUGOYUATSUKAIRO

Publications (2)

Publication Number Publication Date
JPS5635804A true JPS5635804A (en) 1981-04-08
JPH0228725B2 JPH0228725B2 (en) 1990-06-26

Family

ID=14571150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11182779A Expired - Lifetime JPH0228725B2 (en) 1979-09-01 1979-09-01 FUKUGOYUATSUKAIRO

Country Status (1)

Country Link
JP (1) JPH0228725B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020008161A (en) * 2018-06-27 2020-01-16 株式会社クボタ Hydraulic system of working machine
JP2020079637A (en) * 2018-11-14 2020-05-28 株式会社クボタ Hydraulic system for work machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020008161A (en) * 2018-06-27 2020-01-16 株式会社クボタ Hydraulic system of working machine
JP2020079637A (en) * 2018-11-14 2020-05-28 株式会社クボタ Hydraulic system for work machine

Also Published As

Publication number Publication date
JPH0228725B2 (en) 1990-06-26

Similar Documents

Publication Publication Date Title
JPS52113436A (en) Carburetor
JPS57154503A (en) Pressurized fluid feeder
JPS5213083A (en) Fuel safe-servo control valve
JPS5635804A (en) Compound oil pressure circuit
JPS53115408A (en) Control valve mechanism for internal combustion engines
JPS5635805A (en) Directional control valve
JPS53117126A (en) Fuel regulation device of stright line fuel injection pump
JPS53139011A (en) Valve mechanism of internal combustion engine
JPS57120704A (en) Confluent composite control valve
JPS5768543A (en) Control device for engine
JPS5458154A (en) Operation mefthod for hydraulic power plant
JPS57163701A (en) Controller of hydraulic unit
JPS57173601A (en) Hydraulic circuit
JPS5317835A (en) Fuel control system
JPS57107403A (en) Hydraulic control unit
JPS53131370A (en) Oil pressure circuit
JPS5529670A (en) Control equipment of power steering mechanism
JPS5519904A (en) Discharge flow control equipment of variable capacity pump
JPS5510137A (en) Hydraulic circuit
JPS5594003A (en) Selecting device for hydraulic cylinder
JPS57116986A (en) Control system of stop valve
JPS5514976A (en) Controller of steam turbin
JPS54121378A (en) Hydraulic cylinder drive circuit
JPS5779306A (en) Hydraulic circuit
JPS5393202A (en) Feed-water controls