JPH0377076U - - Google Patents

Info

Publication number
JPH0377076U
JPH0377076U JP13602389U JP13602389U JPH0377076U JP H0377076 U JPH0377076 U JP H0377076U JP 13602389 U JP13602389 U JP 13602389U JP 13602389 U JP13602389 U JP 13602389U JP H0377076 U JPH0377076 U JP H0377076U
Authority
JP
Japan
Prior art keywords
flow rate
discharge
pump
discharge flow
reference value
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
JP13602389U
Other languages
English (en)
Other versions
JPH0752390Y2 (ja
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 filed Critical
Priority to JP1989136023U priority Critical patent/JPH0752390Y2/ja
Publication of JPH0377076U publication Critical patent/JPH0377076U/ja
Application granted granted Critical
Publication of JPH0752390Y2 publication Critical patent/JPH0752390Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の実施例を示す回路図、第２
図は上記実施例の第１ポンプと第２ポンプの流量
特性を示す流量特性図、第３図は上記実施例の圧
力・流量特性図、第４図は従来例を示す回路図で
ある。 １，２……可変容量形ポンプ、５……アクチユ
エータ、６……制御部、１３，２３……吐出量可
変要素、１９，２９……変位検出器、６４……基
準値設定器、６５……比較器、６６……スイツチ
回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 設定圧と設定流量により吐出量可変要素の位置
    を可変して吐出圧と吐出流量を制御する複数の可
    変容量形ポンプの吐出側を合流して負荷に圧油を
    供給する油圧供給装置において、 上記複数の可変容量形ポンプのうち第１のポン
    プの吐出流量を検出する流量検出手段と、該流量
    検出手段で検出した吐出流量とあらかじめ定めら
    れた基準値とを比較し、吐出流量が基準値より低
    下したときに第１のポンプ以外のポンプをアンロ
    ードに切換える信号を送り出す設定圧切換え手段
    とを備えたことを特徴とする油圧供給装置。
JP1989136023U 1989-11-27 1989-11-27 油圧供給装置 Expired - Lifetime JPH0752390Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989136023U JPH0752390Y2 (ja) 1989-11-27 1989-11-27 油圧供給装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989136023U JPH0752390Y2 (ja) 1989-11-27 1989-11-27 油圧供給装置

Publications (2)

Publication Number Publication Date
JPH0377076U true JPH0377076U (ja) 1991-08-01
JPH0752390Y2 JPH0752390Y2 (ja) 1995-11-29

Family

ID=31683253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989136023U Expired - Lifetime JPH0752390Y2 (ja) 1989-11-27 1989-11-27 油圧供給装置

Country Status (1)

Country Link
JP (1) JPH0752390Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002331800A (ja) * 2001-05-09 2002-11-19 Sakae Riken Kogyo Co Ltd オーナメント及びエンブレムの製造方法
JP2009174572A (ja) * 2008-01-22 2009-08-06 Daikin Ind Ltd 合流制御システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659005A (en) * 1979-10-22 1981-05-22 Kobe Steel Ltd Controller for hydraulic circuit including plural variable-capacity pumps in parallel
JPS63115902A (ja) * 1986-10-30 1988-05-20 Nissei Plastics Ind Co 射出成形機の制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5659005A (en) * 1979-10-22 1981-05-22 Kobe Steel Ltd Controller for hydraulic circuit including plural variable-capacity pumps in parallel
JPS63115902A (ja) * 1986-10-30 1988-05-20 Nissei Plastics Ind Co 射出成形機の制御装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002331800A (ja) * 2001-05-09 2002-11-19 Sakae Riken Kogyo Co Ltd オーナメント及びエンブレムの製造方法
JP2009174572A (ja) * 2008-01-22 2009-08-06 Daikin Ind Ltd 合流制御システム
JP4548488B2 (ja) * 2008-01-22 2010-09-22 ダイキン工業株式会社 合流制御システム

Also Published As

Publication number Publication date
JPH0752390Y2 (ja) 1995-11-29

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term