CA1034016A - Appareil capteur et regulateur de debit - Google Patents

Appareil capteur et regulateur de debit

Info

Publication number
CA1034016A
CA1034016A CA244,643A CA244643A CA1034016A CA 1034016 A CA1034016 A CA 1034016A CA 244643 A CA244643 A CA 244643A CA 1034016 A CA1034016 A CA 1034016A
Authority
CA
Canada
Prior art keywords
control apparatus
flow sensing
sensing
flow
control
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.)
Expired
Application number
CA244,643A
Other languages
English (en)
Inventor
Wayne A. Peterson
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of CA1034016A publication Critical patent/CA1034016A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31582—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having multiple pressure sources and a single output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • F15B2211/41518—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve being connected to multiple pressure sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/632—Electronic controllers using input signals representing a flow rate
    • F15B2211/6323—Electronic controllers using input signals representing a flow rate the flow rate being a pressure source flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
    • F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/857—Monitoring of fluid pressure systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
CA244,643A 1975-06-06 1976-01-30 Appareil capteur et regulateur de debit Expired CA1034016A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/584,426 US3952510A (en) 1975-06-06 1975-06-06 Flow sensing and control apparatus

Publications (1)

Publication Number Publication Date
CA1034016A true CA1034016A (fr) 1978-07-04

Family

ID=24337280

Family Applications (1)

Application Number Title Priority Date Filing Date
CA244,643A Expired CA1034016A (fr) 1975-06-06 1976-01-30 Appareil capteur et regulateur de debit

Country Status (2)

Country Link
US (1) US3952510A (fr)
CA (1) CA1034016A (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116577A (en) * 1977-03-21 1978-09-26 National Machine Company, Inc. Flow sensing auxiliary pump by-pass valve
US4187927A (en) * 1977-08-12 1980-02-12 UEC Manufacturing Company Remotely actuated auxiliary pressurization system
US4217968A (en) * 1978-10-04 1980-08-19 Caterpillar Tractor Co. Closed center emergency steering with accumulator source
US4232585A (en) * 1978-10-16 1980-11-11 General Motors Corporation Power steering gear with flow check valve
JPS55120802U (fr) * 1979-02-20 1980-08-27
JPS56124560A (en) * 1980-03-03 1981-09-30 Jidosha Kiki Co Ltd Pressurized fluid supply device for power steering arrangment
US4422290A (en) * 1981-08-26 1983-12-27 General Signal Hydraulic control system for governing steering and implement actuators
US4819430A (en) * 1983-01-21 1989-04-11 Hydreco, Inc. Variably charged hydraulic circuit
JPS6076471A (ja) * 1983-10-03 1985-04-30 Toyoda Mach Works Ltd 動力舵取装置の制御装置
JPS60128078A (ja) * 1983-12-13 1985-07-08 Jidosha Kiki Co Ltd 動力舵取装置の制御方法
US4658583A (en) * 1984-06-11 1987-04-21 Trw Inc. Double staged, internal rotary pump with flow control
IT1187853B (it) * 1986-01-14 1987-12-23 Corint Srl Servosterzo per autoveicoli con sovrassistenza incrementata mediante una pompa a funzionamento intermittente
US4779416A (en) * 1987-07-13 1988-10-25 Dresser Industries, Inc. Control system for front end loader boom and bucket operating systems
JPH07502240A (ja) * 1991-04-10 1995-03-09 クラーク・マテリアル・ハンドリング・カンパニー コンテナ搬送装置
FR2685734B1 (fr) * 1991-12-31 1994-02-25 Snecma Alimentation en fluide hydraulique du dispositif de regulation d'un moteur d'avion.
US5335494A (en) * 1993-01-21 1994-08-09 Deere & Company Hydraulic system for reel mower vehicles
EP0770015B1 (fr) * 1994-07-08 1998-09-16 O & K Orenstein & Koppel Ag Procede d'actionnement des verins de braquage de machines de travail mobiles et systeme de direction pour machines de travail mobiles
US6205781B1 (en) * 1999-02-25 2001-03-27 Caterpillar Inc. Fluid control system including a work element and a valve arrangement for selectively supplying pressurized fluid thereto from two pressurized fluid sources
US6250894B1 (en) * 1999-04-07 2001-06-26 United Technologies Corporation Load sharing valve and system for operating centrifugal pumps in parallel
US6990807B2 (en) * 2002-12-09 2006-01-31 Coneqtec Corporation Auxiliary hydraulic drive system
JP5027705B2 (ja) * 2008-03-25 2012-09-19 株式会社小松製作所 作動油供給装置および建設機械
US9261114B2 (en) 2010-05-17 2016-02-16 Volvo Construction Equipment Ab Hydraulic pressure-regulating valve for construction equipment
EP2466017A1 (fr) 2010-12-14 2012-06-20 Caterpillar, Inc. Circuit de commande à boucle fermée avec assistance de pompe à circuit ouvert pour déplacement à haute vitesse
WO2012107186A1 (fr) 2011-02-07 2012-08-16 Caterpillar Inc. Système hydrostatique configuré pour être intégré dans une excavatrice
US8616858B2 (en) * 2011-09-09 2013-12-31 United Technologies Corporation Dual positive displacement pump pressure regulating control
US9732864B2 (en) * 2014-05-14 2017-08-15 Hamilton Sundstrand Corporation Contamination resistant cartridge valve
JP2016109210A (ja) * 2014-12-05 2016-06-20 株式会社ユーテック 継手装置
EP4071301B1 (fr) * 2021-04-06 2023-09-06 BOMAG GmbH Machine autonome à fraiser le sol et procédé de fonctionnement d'une machine à fraiser le sol en mode d'urgence

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614644A (en) * 1949-01-03 1952-10-21 Caterpillar Tractor Co Tractor steering mechanism
US2846848A (en) * 1955-05-16 1958-08-12 Caterpillar Tractor Co Fluid pressure system and control
US3154921A (en) * 1962-01-19 1964-11-03 Caterpillar Tractor Co Fluid pressure system and control
US3547559A (en) * 1968-01-17 1970-12-15 Bosch Gmbh Robert Fluid flow control system
BE755754A (fr) * 1969-09-04 1971-03-04 Caterpillar Tractor Co Système d'alimentation supplémentaire pour les éléments hydrauliques constitutifs d'un véhicule.
US3631937A (en) * 1970-03-10 1972-01-04 Tyrone Hydraulics Supplementary steering system for vehicles
US3730288A (en) * 1970-12-09 1973-05-01 Clark Equipment Co Dual steering system
US3747725A (en) * 1971-03-15 1973-07-24 Ford Motor Co Power steering system with auxiliary pump

Also Published As

Publication number Publication date
US3952510A (en) 1976-04-27

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