BR9303240A - Sistema hidraulico - Google Patents

Sistema hidraulico

Info

Publication number: BR9303240A
Authority: BR; Brazil
Prior art keywords: hydraulic; load sensing; control valve; pump; sensing port
Prior art date: 1992-08-03

Application number

BR9303240A

Other languages

English (en)

Inventor

Douglas Michael Durant

Larry Marvin Delfs

Derek Malcolm Eagles

Ronald Lee Pratt

Original Assignee

Deere & 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.)

1992-08-03

Filing date

1993-07-30

Publication date

1994-03-15

1993-07-30 Application filed by Deere & Co filed Critical Deere & Co

1994-03-15 Publication of BR9303240A publication Critical patent/BR9303240A/pt

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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Analytical Chemistry (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
Chemical & Material Sciences (AREA)
Fluid-Pressure Circuits (AREA)
Lifting Devices For Agricultural Implements (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Vehicle Body Suspensions (AREA)
Lift Valve (AREA)
Lubrication Of Internal Combustion Engines (AREA)
Actuator (AREA)

BR9303240A 1992-08-03 1993-07-30 Sistema hidraulico BR9303240A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/923,762 US5245827A (en)	1992-08-03	1992-08-03	Supply valve arrangement for closed center hydraulic system

Publications (1)

Publication Number	Publication Date
BR9303240A true BR9303240A (pt)	1994-03-15

Family

ID=25449226

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9303240A BR9303240A (pt)	1992-08-03	1993-07-30	Sistema hidraulico

Country Status (10)

Country	Link
US (1)	US5245827A (pt)
EP (1)	EP0582099B1 (pt)
JP (1)	JPH06159305A (pt)
AT (1)	ATE147139T1 (pt)
AU (1)	AU659751B2 (pt)
BR (1)	BR9303240A (pt)
CA (1)	CA2101235C (pt)
DE (1)	DE59304948D1 (pt)
ES (1)	ES2095527T3 (pt)
MX (1)	MX9304408A (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4311191C2 (de) *	1993-04-05	1995-02-02	Deere & Co	Hydrauliksystem zur Versorgung offener oder geschlossener Hydraulikfunktionen
DE10040395A1 (de)	1999-09-14	2001-03-22	Caterpillar Inc	Hydraulisches Steuersystem zum Verbessern des Pumpenansprechens und der Dynamischen Übereinstimmung von Pumpe und Ventil
US20060196179A1 (en) *	2005-03-01	2006-09-07	Arun Kesavan	Load-sensing integrated brake and fan hydraulic system
US8267004B2 (en) *	2009-05-20	2012-09-18	Lifetime Enterprises, Llc	Adaptable hydraulic control system
CN102734276B (zh) *	2012-06-28	2015-07-01	三一汽车起重机械有限公司	负载敏感电比例液压控制系统和工程机械
CN103148038A (zh) *	2013-03-20	2013-06-12	镇江华瑞液压机械有限公司	双重节能组合液压阀
CN103727082B (zh) *	2013-12-27	2016-08-31	三一汽车起重机械有限公司	液压系统和工程机械
CN105158076A (zh) *	2015-08-19	2015-12-16	河南科技大学	一种冲击式气动承载装置
DE102018212077A1 (de) *	2018-07-19	2020-01-23	Deere & Company	Verfahren zum Betreiben eines hydraulischen Verbrauchers an einem elektrisch betätigbaren Steuerventil
CN111577689B (zh) *	2020-06-03	2021-03-26	江苏科迈液压控制系统有限公司	一种负载敏感比例多路阀抗流量饱和方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3486334A (en) *	1968-05-16	1969-12-30	Cessna Aircraft Co	Hydraulic power transmission control
US4276811A (en) *	1972-11-08	1981-07-07	Control Concepts, Inc.	Closed center programmed valve system with load sense
US4401009A (en) *	1972-11-08	1983-08-30	Control Concepts, Inc.	Closed center programmed valve system with load sense
US4050596A (en) *	1975-07-24	1977-09-27	Control Concepts, Inc.	Electrohydraulic valve assembly for front end loader attachment to farm tractor
US4046399A (en) *	1975-11-05	1977-09-06	Control Concepts, Inc.	Electrohydraulic system for towed vehicle
US4023646A (en) *	1975-11-24	1977-05-17	Allis-Chalmers Corporation	Load sensitive hydraulic system
US4107924A (en) *	1977-04-28	1978-08-22	Caterpillar Tractor Co.	Pump upgrading system
US4199942A (en) *	1978-09-28	1980-04-29	Eaton Corporation	Load sensing control for hydraulic system
DE3318052A1 (de) *	1982-12-30	1984-07-05	Robert Bosch Gmbh, 7000 Stuttgart	Hydraulische steuereinrichtung
US4589437A (en) *	1983-07-07	1986-05-20	Zeuner Kenneth W	Reel speed valve assembly
DE3914904C2 (de) *	1989-05-05	1995-06-29	Rexroth Mannesmann Gmbh	Regelung für eine lastabhängig arbeitende Verstellpumpe
EP0477370B2 (en) *	1990-01-11	1998-11-04	Hitachi Construction Machinery Co., Ltd.	Hydraulic valve apparatus

1992
- 1992-08-03 US US07/923,762 patent/US5245827A/en not_active Expired - Lifetime
1993
- 1993-07-09 DE DE59304948T patent/DE59304948D1/de not_active Expired - Lifetime
- 1993-07-09 ES ES93110985T patent/ES2095527T3/es not_active Expired - Lifetime
- 1993-07-09 EP EP93110985A patent/EP0582099B1/de not_active Expired - Lifetime
- 1993-07-09 AT AT93110985T patent/ATE147139T1/de not_active IP Right Cessation
- 1993-07-21 MX MX9304408A patent/MX9304408A/es not_active IP Right Cessation
- 1993-07-23 CA CA002101235A patent/CA2101235C/en not_active Expired - Fee Related
- 1993-07-29 AU AU44310/93A patent/AU659751B2/en not_active Ceased
- 1993-07-30 BR BR9303240A patent/BR9303240A/pt not_active IP Right Cessation
- 1993-08-03 JP JP5192467A patent/JPH06159305A/ja active Pending

Also Published As

Publication number	Publication date
AU659751B2 (en)	1995-05-25
ATE147139T1 (de)	1997-01-15
DE59304948D1 (de)	1997-02-13
ES2095527T3 (es)	1997-02-16
JPH06159305A (ja)	1994-06-07
AU4431093A (en)	1994-02-10
EP0582099A3 (en)	1994-08-24
EP0582099A2 (de)	1994-02-09
EP0582099B1 (de)	1997-01-02
MX9304408A (es)	1994-03-31
CA2101235C (en)	1995-06-27
US5245827A (en)	1993-09-21
CA2101235A1 (en)	1994-02-04

Publication	Publication Date	Title
CA1134240A (en)	1982-10-26	Reverse differential holding valve
SE8103530L (sv)	1981-06-04	Elektrohydraulisk doseringsventil
DE3277406D1 (en)	1987-11-05	Spring element and its application
CA2120052A1 (en)	1994-10-06	Hydraulic System for Open or Closed-Centered Systems
GB1387773A (en)	1975-03-19	Fluid valve assemblies
BR9303240A (pt)	1994-03-15	Sistema hidraulico
US5484269A (en)	1996-01-16	Fluid intensifier
ATE166705T1 (de)	1998-06-15	Energierückgewinnungsvorrichtung
ATE68243T1 (de)	1991-10-15	Hydraulische steuervorrichtung.
US3787147A (en)	1974-01-22	Two-stage air-hydraulic booster
GB1342675A (en)	1974-01-03	Hydraulic control devices
GB2340466A (en)	2000-02-23	Depth control device
GB2323130A (en)	1998-09-16	Pressure control system for a variable displacement hydraulic pump
GB1537430A (en)	1978-12-29	Actuating drive means
EP0608415A4 (en)	1994-02-02	HYDRAULIC SWITCHING WITH PRESSURE COMPENSATING VALVE.
DE3375938D1 (en)	1988-04-14	Signal valve for pressure compensated system
GB1448965A (en)	1976-09-08	Brake booster with integral accumulator
ATE61022T1 (de)	1991-03-15	Zweistufiges bremssteuerventil.
SE9303017D0 (sv)	1993-09-16	Hydraulsystem
SE7700886L (sv)	1977-12-04	Regleringsventil for hydrauliska system
BR9804143A (pt)	1999-12-21	Servoválvula, em especial válvula de fechamento automático ou circulador de pressão
DE59409720D1 (de)	2001-05-17	Lastdruckunabhängige Steuerung der Geschwindigkeit von hydraulischen Stellelementen an Baumaschinen
GB1005274A (en)	1965-09-22	Hydraulic valve
GB2016102A (en)	1979-09-19	Hydraulic brake booster and auxiliary accumulator valve member
GB1319245A (en)	1973-06-06	Dual brake valves

Legal Events

Date	Code	Title	Description
1996-03-26	EE	Request for examination
1998-01-13	FF	Decision: intention to grant
1998-05-19	FF	Decision: intention to grant
1998-06-30	HKFF	Publication of grant (deleted)
1998-09-29	FG9A	Patent or certificate of addition granted
2010-11-09	B24C	Patent annual fee: request for for restoration	Free format text: REFERENTE A 9A , 10A , 11A , 12A , 13A , 14A , 15A,, 16A E 17A ANUI DADES.
2014-08-26	B24H	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
2020-12-08	B24F	Patent annual fee: publication cancelled	Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2277 DE 26/08/2014 POR TER SIDO INDEVIDA.
2020-12-15	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE AS 9A, 10A, 11A, 12A, 13A, 14A, 15A, 16A E 17A ANUIDADES.
2021-03-30	B24J	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)	Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.