JPS57176375A - N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump - Google Patents

N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump

Info

Publication number
JPS57176375A
JPS57176375A JP56060943A JP6094381A JPS57176375A JP S57176375 A JPS57176375 A JP S57176375A JP 56060943 A JP56060943 A JP 56060943A JP 6094381 A JP6094381 A JP 6094381A JP S57176375 A JPS57176375 A JP S57176375A
Authority
JP
Japan
Prior art keywords
pump
pumps
injection molding
molding machine
delivery
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
JP56060943A
Other languages
Japanese (ja)
Inventor
Minoru Ooichi
Yukio Takanashi
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP56060943A priority Critical patent/JPS57176375A/en
Publication of JPS57176375A publication Critical patent/JPS57176375A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To selectively supply a delivery amount of necessary energy by using conventional constant delivery pumps of major, medium and minor capacity as a triple unit. CONSTITUTION:If assumed 4:2:1 for delivery ratio of major, medium and minor capacity pumps 54, 55, 56, seven kinds of delivery amount can be obtained by combination of these three pumps, and a suitable amount can be delivered for a necessary amount to save energy. Further N number of pumps are similarly used, if their ratio is set in accordance with each number of pumps, energy is not wasted, and only necessary energy can be used by their selective combination to obtain a necessary delivery amount.
JP56060943A 1981-04-21 1981-04-21 N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump Pending JPS57176375A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56060943A JPS57176375A (en) 1981-04-21 1981-04-21 N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56060943A JPS57176375A (en) 1981-04-21 1981-04-21 N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump

Publications (1)

Publication Number Publication Date
JPS57176375A true JPS57176375A (en) 1982-10-29

Family

ID=13156960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56060943A Pending JPS57176375A (en) 1981-04-21 1981-04-21 N-multiple pump and oil hydraulic circuit of injection molding machine applying said pump

Country Status (1)

Country Link
JP (1) JPS57176375A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165977U (en) * 1983-04-22 1984-11-07 株式会社クボタ Tandem pump suction structure
JPS6019417U (en) * 1983-07-19 1985-02-09 東芝機械株式会社 Injection molding machine pump monitor lamp
JPS6117704A (en) * 1984-07-05 1986-01-25 Toshiba Mach Co Ltd Control valve for constant difference pressure flow
JPS63253186A (en) * 1987-04-09 1988-10-20 Agency Of Ind Science & Technol Flow control device for warm water pump
US5199854A (en) * 1990-08-08 1993-04-06 Nissan Motor Co., Ltd. Hydraulic supply arrangement for use with active automotive suspension or the like
JP6117956B1 (en) * 2016-02-05 2017-04-19 油研工業株式会社 Large capacity hydraulic system
JP2023527949A (en) * 2021-05-06 2023-07-03 ピョン カン バイオ アイティー メカトロニクス カンパニー リミテッド Electro-hydraulic system with improved electrical efficiency

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165977U (en) * 1983-04-22 1984-11-07 株式会社クボタ Tandem pump suction structure
JPS6019417U (en) * 1983-07-19 1985-02-09 東芝機械株式会社 Injection molding machine pump monitor lamp
JPS6117704A (en) * 1984-07-05 1986-01-25 Toshiba Mach Co Ltd Control valve for constant difference pressure flow
JPH0456161B2 (en) * 1984-07-05 1992-09-07 Toshiba Machine Co Ltd
JPS63253186A (en) * 1987-04-09 1988-10-20 Agency Of Ind Science & Technol Flow control device for warm water pump
US5199854A (en) * 1990-08-08 1993-04-06 Nissan Motor Co., Ltd. Hydraulic supply arrangement for use with active automotive suspension or the like
JP6117956B1 (en) * 2016-02-05 2017-04-19 油研工業株式会社 Large capacity hydraulic system
JP2017137967A (en) * 2016-02-05 2017-08-10 油研工業株式会社 High-capacity system correspondence hydraulic system
JP2023527949A (en) * 2021-05-06 2023-07-03 ピョン カン バイオ アイティー メカトロニクス カンパニー リミテッド Electro-hydraulic system with improved electrical efficiency

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