KR860004232A - Hydrostatic Pump Displacement Control - Google Patents

Hydrostatic Pump Displacement Control Download PDF

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Publication number
KR860004232A
KR860004232A KR1019850008978A KR850008978A KR860004232A KR 860004232 A KR860004232 A KR 860004232A KR 1019850008978 A KR1019850008978 A KR 1019850008978A KR 850008978 A KR850008978 A KR 850008978A KR 860004232 A KR860004232 A KR 860004232A
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KR
South Korea
Prior art keywords
pump
control
displacement
control signal
control device
Prior art date
Application number
KR1019850008978A
Other languages
Korean (ko)
Other versions
KR930010814B1 (en
Inventor
테루오 아끼야마 (외 2)
Original Assignee
원본미기재
가부시기가이샤 고마쓰 세이사꾸쇼
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.)
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Publication date
Application filed by 원본미기재, 가부시기가이샤 고마쓰 세이사꾸쇼 filed Critical 원본미기재
Publication of KR860004232A publication Critical patent/KR860004232A/en
Application granted granted Critical
Publication of KR930010814B1 publication Critical patent/KR930010814B1/en

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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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

내용 없음No content

Description

유체작용시 펌프변위 제어장치Pump displacement control device in fluid action

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 바람직한 일 예의 전체적인 구성 원리를 개략적으로 나타낸 도면.1 is a view schematically showing the overall construction principle of a preferred example according to the present invention.

제2도는 제1도의 예에 사용하는 제어기의 회로 개략도.2 is a circuit schematic diagram of a controller used in the example of FIG.

제3도는 제1도의 예의 요부를 상세하게 도시한 단면도.3 is a cross-sectional view showing in detail the main part of the example of FIG.

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

P1…제1변위 조절펌프, P2…제2변위조절 펌프, P3…제어펌프, E…기관, 1…제1변위 조절펌프의 배출로, 3…제2변위 조절펌프의 배출로, 21,22,23,24,25,26…제1~제6 작용 밸브, 5,6…사반, 7,8…제어장치, 16…배출로, 12…NC밸브, 13…CO밸브, 14…회전력조절 제어밸브, 11…분출류 검출기, E1…연료분사펌프, 18…제어레버, 17…전위차계, 19…속도 검출기, 20…제어기P 1 . First displacement regulating pump, P 2 ... Second displacement regulating pump, P 3 ... Control pump, E... Organ, 1... The discharge of the first displacement control pump; Discharge of the second displacement regulating pump, 2 1 , 2 2 , 2 3 , 2 4 , 2 5 , 2 6 . 1st to 6th action valves, 5, 6... Shaphan, 7,8... Control unit; Exhaust furnace, 12.. NC valve, 13.. CO valve, 14.. Torque control valve, 11.. Jet flow detector, E 1 . Fuel injection pump, 18... Control lever, 17... Potentiometer, 19... Speed detector, 20... Controller

Claims (3)

자체압력을 제1제어신호로 한 것으로서, 이 제1제어 신호와는 달리 임의로 변화시킬 수 있는 제2제어신호를 제1 제어신호에 더하여 제2 제어선호의 값에 상응하는 만큼 변위 되도록 함을 특징으로 하는 유체 작용식 펌프변위 제어방법.The self-pressure is the first control signal, and unlike the first control signal, the second control signal, which can be arbitrarily changed, is added to the first control signal so as to be displaced by a value corresponding to the value of the second control preference. Fluid acting pump displacement control method. 변위 조절 펌프의 각 변위 제어 장치에 접속시켜 별도의 제어펌프의 배출 유압에 의하여 작용토록한 제어장치, 비례식 보정용 전자솔레노이드를 갖추도록 하여 상기한 제어장치와 제어펌프를 연결하는 회로에 설치하여 상기한 변위 조절펌프의 배출 유압과 비례식 보정용 전자 솔레노이드의 추진력에 의해서 압력을 감소시키는 작용을 하도록 한 회전력 조절밸브, 변위 조절펌프를 움직이는 원동기의 정해진 출력 조건들을 검출하는 장치, 및 정해진 출력조건들 각각의 기준 회전 속도와 원동기의 실제회전 속도간의 차이에 따라서 비례식 보정용 전자솔레노이드에 전류를 공급하는 장치로 구성한 유체작용식 펌프 변위 제어장치.Connected to each displacement control device of the displacement control pump, and equipped with a control device to operate by the discharge oil pressure of the separate control pump, a proportional correction electronic solenoid, and installed in the circuit connecting the control device and the control pump A rotational force regulating valve which acts to reduce the pressure by the discharge hydraulic pressure of the displacement regulating pump and the propulsion force of the proportional correction electronic solenoid, a device for detecting the predetermined output conditions of the prime mover moving the displacement regulating pump, and the criteria for each of the predetermined output conditions. Fluid-actuated pump displacement control device composed of a device for supplying current to a proportional correction electronic solenoid according to the difference between the rotational speed and the actual rotational speed of the prime mover. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850008978A 1984-11-30 1985-11-30 Fluid operated pump displacement control system KR930010814B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP251992/84 1984-11-30
JP59251992A JPH0658111B2 (en) 1984-11-30 1984-11-30 Discharge amount control device for variable displacement hydraulic pump

Publications (2)

Publication Number Publication Date
KR860004232A true KR860004232A (en) 1986-06-18
KR930010814B1 KR930010814B1 (en) 1993-11-11

Family

ID=17231033

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850008978A KR930010814B1 (en) 1984-11-30 1985-11-30 Fluid operated pump displacement control system

Country Status (3)

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JP (1) JPH0658111B2 (en)
KR (1) KR930010814B1 (en)
CN (1) CN1008388B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4520588B2 (en) * 2000-06-23 2010-08-04 株式会社小松製作所 Pressure reducing valve
KR100518769B1 (en) * 2003-06-19 2005-10-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 control hydraulic circuit for hydraulic pump discharge flow
WO2009104636A1 (en) 2008-02-18 2009-08-27 株式会社小松製作所 Engine control device and engine control method
EP2640973B1 (en) * 2010-11-17 2018-10-03 KSB SE & Co. KGaA Method and control device for the rotational-speed-variable control of an expeller pump unit and expeller pump arrangement
JP5614814B2 (en) * 2011-12-16 2014-10-29 キャタピラー エス エー アール エル Hydraulic work machine
CN102536761B (en) * 2011-12-26 2015-01-07 中联重科股份有限公司 Engineering machinery and power control system and control method of non-electrically-controlled hydraulic pump of engineering machinery
CN103062027B (en) * 2012-12-24 2013-12-25 北汽福田汽车股份有限公司 Control method used for concrete pumping machinery and controller
JP6111116B2 (en) * 2013-03-28 2017-04-05 Ｋｙｂ株式会社 Pump volume control device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654982A (en) * 1979-10-11 1981-05-15 Kawasaki Heavy Ind Ltd Controller for variable capacity pump
JPS593187A (en) * 1982-06-29 1984-01-09 Komatsu Ltd Control device of variable capacity type pump

Also Published As

Publication number Publication date
JPH0658111B2 (en) 1994-08-03
CN85104096A (en) 1986-05-10
CN1008388B (en) 1990-06-13
KR930010814B1 (en) 1993-11-11
JPS6181587A (en) 1986-04-25

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