JPS57177404A - Combined flow type flow control circuit associated with pressure compensation - Google Patents

Combined flow type flow control circuit associated with pressure compensation

Info

Publication number
JPS57177404A
JPS57177404A JP6302181A JP6302181A JPS57177404A JP S57177404 A JPS57177404 A JP S57177404A JP 6302181 A JP6302181 A JP 6302181A JP 6302181 A JP6302181 A JP 6302181A JP S57177404 A JPS57177404 A JP S57177404A
Authority
JP
Japan
Prior art keywords
valve
flow control
pump
pressure
pressure compensation
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
JP6302181A
Other languages
Japanese (ja)
Other versions
JPS6158683B2 (en
Inventor
Kenji Masuda
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 JP6302181A priority Critical patent/JPS57177404A/en
Publication of JPS57177404A publication Critical patent/JPS57177404A/en
Publication of JPS6158683B2 publication Critical patent/JPS6158683B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: In a flow control circuit for a hydraulic circuit having a plurality of pumps, to enable the selection of the flow control pattern and the correct flow control, by combining or separating the delivery fluid of each pump in accordance to the exchange operation of an exchange valve and the opening of a throttle valve.
CONSTITUTION: A pressure reducing type pressure compensation valve 14 and a throttle vale 15 are provided from the upstream in the main line 13 for connecting an actuator 12 to the exit side of a variable pump 11. A load sensing valve 21, a pilot valve 22 for controlling the pressure having similar structure and a surge pressure absorbing valve 23 in the shape of a relief valve are provided between said valve 14 and pump 11. Furthermore a fixed pump 71 is provided where the delivery line 72 is connected to the main line 13 at the upstream of the valve 14 while simultaneously connected to a bypass type pressure compensation valve 74 and the spring chaberof of said valve 74 can be switched to the downstream of the tank 80 and sais throttle valve 15 through a two-way exchange electromagnetic valve 77. The spring pressure in the spring chamber of said valve 21 is set higher than that of the valve 74.
COPYRIGHT: (C)1982,JPO&Japio
JP6302181A 1981-04-25 1981-04-25 Combined flow type flow control circuit associated with pressure compensation Granted JPS57177404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6302181A JPS57177404A (en) 1981-04-25 1981-04-25 Combined flow type flow control circuit associated with pressure compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6302181A JPS57177404A (en) 1981-04-25 1981-04-25 Combined flow type flow control circuit associated with pressure compensation

Publications (2)

Publication Number Publication Date
JPS57177404A true JPS57177404A (en) 1982-11-01
JPS6158683B2 JPS6158683B2 (en) 1986-12-12

Family

ID=13217246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6302181A Granted JPS57177404A (en) 1981-04-25 1981-04-25 Combined flow type flow control circuit associated with pressure compensation

Country Status (1)

Country Link
JP (1) JPS57177404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106050762A (en) * 2016-07-18 2016-10-26 江苏恒立液压科技有限公司 Unloading hydraulic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106050762A (en) * 2016-07-18 2016-10-26 江苏恒立液压科技有限公司 Unloading hydraulic system

Also Published As

Publication number Publication date
JPS6158683B2 (en) 1986-12-12

Similar Documents

Publication Publication Date Title
JPS57154503A (en) Pressurized fluid feeder
KR920702755A (en) Hydraulic system
JPH05501600A (en) Load pressure replication circuit
US3385312A (en) Fluid regulator circuit
CN215257077U (en) Novel load sensitive piece formula multiple unit valve
JPS57177403A (en) Combined flow type flow control circuit associated with pressure compensation
JPS57205271A (en) Flow rate controlling valve of power steering apparatus
JPS57177405A (en) Combined flow type flow control circuit associated with pressure compensation
JPS57177406A (en) Combind flow type flow control circuit capable of mode exchange
JPS56143803A (en) Fluid controller
JPS56160405A (en) Fluid circuit
JPS5670106A (en) Combination fluid circuit
JPS55115605A (en) Flow distributing valve
JPS55159301A (en) Control circuit for actuator
JPS57131889A (en) Oil hydraulic controller
JPS5776304A (en) Hydraulic circuit for construction machinery
JPS56141403A (en) Fluid controller
JPS54156985A (en) Safety device of hydraulic circuit having a plurality of actuators
JPH01275902A (en) Discharge rate control circuit for load pressure compensating pump
JPH0219601Y2 (en)
US1945204A (en) Boiler feed system
JPS5788237A (en) Hydraulic actuator type fuel injection timing regulator
JPS5830973Y2 (en) Actuator drive circuit
JPS5786602A (en) Pressure controlling apparatus
GB2275985A (en) Flow controller