BE1006612A3 - Commande reversible de coupure de la haute pression pour une pompe hydraulique a debit variable. - Google Patents

Commande reversible de coupure de la haute pression pour une pompe hydraulique a debit variable. Download PDF

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Publication number
BE1006612A3
BE1006612A3 BE9300031A BE9300031A BE1006612A3 BE 1006612 A3 BE1006612 A3 BE 1006612A3 BE 9300031 A BE9300031 A BE 9300031A BE 9300031 A BE9300031 A BE 9300031A BE 1006612 A3 BE1006612 A3 BE 1006612A3
Authority
BE
Belgium
Prior art keywords
valve
high pressure
cut
pilot passage
outlet orifice
Prior art date
Application number
BE9300031A
Other languages
English (en)
French (fr)
Inventor
Stephen V Lunzman
John J Krone
Lonnie J Devier
Original Assignee
Caterpillar Inc
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 Caterpillar Inc filed Critical Caterpillar Inc
Application granted granted Critical
Publication of BE1006612A3 publication Critical patent/BE1006612A3/fr

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
    • F04B49/08—Regulating by delivery pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
BE9300031A 1992-01-16 1993-01-13 Commande reversible de coupure de la haute pression pour une pompe hydraulique a debit variable. BE1006612A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/821,203 US5197864A (en) 1992-01-16 1992-01-16 On-off pressure cutoff control for a variable displacement hydraulic pump

Publications (1)

Publication Number Publication Date
BE1006612A3 true BE1006612A3 (fr) 1994-11-03

Family

ID=25232792

Family Applications (1)

Application Number Title Priority Date Filing Date
BE9300031A BE1006612A3 (fr) 1992-01-16 1993-01-13 Commande reversible de coupure de la haute pression pour une pompe hydraulique a debit variable.

Country Status (4)

Country Link
US (1) US5197864A (enExample)
JP (1) JPH05272464A (enExample)
BE (1) BE1006612A3 (enExample)
DE (1) DE4301141A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950003064B1 (ko) * 1992-05-30 1995-03-30 삼성중공업 주식회사 가변용량형 유압펌프의 제어장치
DE4327667A1 (de) * 1993-08-17 1995-02-23 Sauer Sundstrand Gmbh & Co Steuerungsvorrichtung für verstellbare Hydromaschinen
US5736200A (en) * 1996-05-31 1998-04-07 Caterpillar Inc. Process for reducing oxygen content in thermally sprayed metal coatings
US6371733B1 (en) * 1997-04-11 2002-04-16 Accuspray, Inc. Pump with hydraulic load sensor and controller
US6094911A (en) * 1998-12-18 2000-08-01 Caterpillar Inc. Load sensing hydraulic system with high pressure cut-off bypass
JP2013530346A (ja) * 2010-07-08 2013-07-25 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング ハイドロリック式のアキシャルピストン機械
US8919113B2 (en) 2011-06-28 2014-12-30 Caterpillar Inc. Hydraulic control system having energy recovery kit
US8776511B2 (en) 2011-06-28 2014-07-15 Caterpillar Inc. Energy recovery system having accumulator and variable relief
US8850806B2 (en) 2011-06-28 2014-10-07 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9068575B2 (en) 2011-06-28 2015-06-30 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9139982B2 (en) 2011-06-28 2015-09-22 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9388828B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
US9145660B2 (en) * 2012-08-31 2015-09-29 Caterpillar Inc. Hydraulic control system having over-pressure protection
US9187878B2 (en) 2012-08-31 2015-11-17 Caterpillar Inc. Hydraulic control system having swing oscillation dampening
US9328744B2 (en) 2012-08-31 2016-05-03 Caterpillar Inc. Hydraulic control system having swing energy recovery
US9091286B2 (en) 2012-08-31 2015-07-28 Caterpillar Inc. Hydraulic control system having electronic flow limiting
US9086081B2 (en) 2012-08-31 2015-07-21 Caterpillar Inc. Hydraulic control system having swing motor recovery
US9388829B2 (en) 2012-08-31 2016-07-12 Caterpillar Inc. Hydraulic control system having swing motor energy recovery
JP7735155B2 (ja) * 2021-10-26 2025-09-08 キャタピラー エス エー アール エル 建設機械の油圧回路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198553A5 (enExample) * 1972-08-25 1974-03-29 Caterpillar Tractor Co
US4523430A (en) * 1981-03-19 1985-06-18 Daikin Kogyo Co., Ltd. Fluid flow control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840548A1 (de) * 1988-12-01 1990-06-07 Rexroth Mannesmann Gmbh Vorrichtung zum ansteuern einer verstellpumpe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198553A5 (enExample) * 1972-08-25 1974-03-29 Caterpillar Tractor Co
US4523430A (en) * 1981-03-19 1985-06-18 Daikin Kogyo Co., Ltd. Fluid flow control system

Also Published As

Publication number Publication date
JPH05272464A (ja) 1993-10-19
US5197864A (en) 1993-03-30
DE4301141A1 (enExample) 1993-07-22

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CATERPILLAR INC.

Effective date: 19980131