BR102013013808A8 - Sistema de controle de fluido para uso em um veículo de trabalho e máquina de trabalho - Google Patents
Sistema de controle de fluido para uso em um veículo de trabalho e máquina de trabalhoInfo
- Publication number
- BR102013013808A8 BR102013013808A8 BR102013013808A BR102013013808A BR102013013808A8 BR 102013013808 A8 BR102013013808 A8 BR 102013013808A8 BR 102013013808 A BR102013013808 A BR 102013013808A BR 102013013808 A BR102013013808 A BR 102013013808A BR 102013013808 A8 BR102013013808 A8 BR 102013013808A8
- Authority
- BR
- Brazil
- Prior art keywords
- pump
- control
- control system
- fluid
- fluid control
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/963—Arrangements on backhoes for alternate use of different tools
- E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine
-
- 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
- E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement 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
- E02F9/2278—Hydraulic circuits
- E02F9/2282—Systems using center bypass type changeover valves
-
- 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
- E02F9/2296—Systems with a variable displacement pump
-
- 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
- F04B49/002—Hydraulic systems to change the pump delivery
-
- 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
-
- 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
- F04B49/12—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 by varying the length of stroke of the working members
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
-
- 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
- F15B2211/605—Load sensing circuits
-
- 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
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
-
- 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
- F15B2211/605—Load sensing circuits
- F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
- F15B2211/6057—Load sensing circuits having valve means between output member and the load sensing circuit using directional control 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/65—Methods of control of the load sensing pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
SISTEMA DE CONTROLE DE FLUIDO PARA VEÍCULO DE TRABALHO. Um sistema de controle de fluido incluindo uma bomba de deslocamento variável tendo um controle de sistema de carga e configurada para operar em um modo de centro aberto. Um controle de bomba é operável entre uma primeira disposição e uma segunda disposição. O controle de bomba recebe fluido pressurizado de uma primeira pressão de sensor de carga em comunicação fluida com a bomba e uma pressão de retorno de atuador em comunicação fluida com um atuador configurado para operar usando fluido pressurizado do sistema, o controle de bomba fornecendo uma pressão de controle de bomba para o sistema de controle de carga de bomba. Quando o sistema está operando em um modo de reserva, a bomba opera em uma primeira condição de deslocamento minimizada. Quando o sistema está em um modo de estol, a bomba opera em uma segunda condição de deslocamento minimizada.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/487,622 US9347200B2 (en) | 2012-06-04 | 2012-06-04 | Fluid control system for work vehicle |
US13/487,622 | 2012-06-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
BR102013013808A2 BR102013013808A2 (pt) | 2015-10-13 |
BR102013013808A8 true BR102013013808A8 (pt) | 2017-10-03 |
BR102013013808B1 BR102013013808B1 (pt) | 2021-09-08 |
Family
ID=48613408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR102013013808-8A BR102013013808B1 (pt) | 2012-06-04 | 2013-06-04 | Sistema de controle de fluido para uso em um veículo de trabalho e máquina de trabalho |
Country Status (3)
Country | Link |
---|---|
US (1) | US9347200B2 (pt) |
EP (1) | EP2672022B1 (pt) |
BR (1) | BR102013013808B1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9323253B2 (en) * | 2012-12-21 | 2016-04-26 | Eaton Corporation | Proportional flow control of a fluid pump assembly |
CN104554432B (zh) * | 2014-05-29 | 2017-04-12 | 四川大学 | 一种工程机械线控转向系统 |
US9470246B1 (en) * | 2015-06-05 | 2016-10-18 | Cnh Industrial America Llc | Hydraulic actuation system for work machine |
US10913435B2 (en) * | 2018-09-28 | 2021-02-09 | Goodrich Corporation | Hydraulic braking system and method |
US11674534B2 (en) * | 2020-04-17 | 2023-06-13 | Oshkosh Corporation | Refuse vehicle control systems and methods |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3726089A (en) | 1971-04-08 | 1973-04-10 | Dowty Technical Dev Ltd | Fluid-pressure-operable systems |
US3788077A (en) | 1972-07-13 | 1974-01-29 | Borg Warner | Open center control of variable pumps |
US3809501A (en) | 1973-01-08 | 1974-05-07 | Gen Signal Corp | Hydraulic load sensitive system |
US3952509A (en) | 1975-04-10 | 1976-04-27 | Allis-Chalmers Corporation | Hydraulic system combining open center and closed center hydraulic circuits |
US4383412A (en) | 1979-10-17 | 1983-05-17 | Cross Manufacturing, Inc. | Multiple pump load sensing system |
US4335577A (en) | 1980-06-19 | 1982-06-22 | Deere & Company | Hydraulic system having variable displacement pumps controlled by power beyond flow |
US4479349A (en) | 1981-11-19 | 1984-10-30 | General Signal Corporation | Hydraulic control system |
DE3914904C2 (de) * | 1989-05-05 | 1995-06-29 | Rexroth Mannesmann Gmbh | Regelung für eine lastabhängig arbeitende Verstellpumpe |
EP0564939B1 (de) * | 1992-04-04 | 1995-12-13 | Mannesmann Rexroth AG | Hydraulische Steuereinrichtung für mehrere Verbraucher |
JPH11303759A (ja) * | 1998-04-21 | 1999-11-02 | Hitachi Constr Mach Co Ltd | 油圧ポンプの制御装置 |
JP4291759B2 (ja) * | 2004-08-26 | 2009-07-08 | キャタピラージャパン株式会社 | 流体圧駆動回路 |
US20090025380A1 (en) | 2007-07-24 | 2009-01-29 | Parker Hannifin Corporation, An Ohio Corporation | Fixed/variable hybrid system |
US7874151B2 (en) | 2008-03-17 | 2011-01-25 | Caterpillar Inc | Dual mode hydraulic circuit control and method |
JP5391040B2 (ja) * | 2009-11-26 | 2014-01-15 | キャタピラー エス エー アール エル | 作業機械の旋回油圧制御装置 |
-
2012
- 2012-06-04 US US13/487,622 patent/US9347200B2/en active Active
-
2013
- 2013-05-30 EP EP13169925.8A patent/EP2672022B1/en active Active
- 2013-06-04 BR BR102013013808-8A patent/BR102013013808B1/pt active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP2672022B1 (en) | 2018-12-26 |
EP2672022A2 (en) | 2013-12-11 |
US20130318957A1 (en) | 2013-12-05 |
BR102013013808A2 (pt) | 2015-10-13 |
US9347200B2 (en) | 2016-05-24 |
BR102013013808B1 (pt) | 2021-09-08 |
EP2672022A3 (en) | 2017-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B03A | Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette] | ||
B25D | Requested change of name of applicant approved |
Owner name: CNH INDUSTRIAL AMERICA LLC (US) |
|
B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/06/2013, OBSERVADAS AS CONDICOES LEGAIS. |