[go: up one dir, main page]

BR0000570A - Unidade de esterçamento de reação a carga para cilindro de área desigual - Google Patents

Unidade de esterçamento de reação a carga para cilindro de área desigual

Info

Publication number
BR0000570A
BR0000570A BR0000570A BR0000570A BR0000570A BR 0000570 A BR0000570 A BR 0000570A BR 0000570 A BR0000570 A BR 0000570A BR 0000570 A BR0000570 A BR 0000570A BR 0000570 A BR0000570 A BR 0000570A
Authority
BR
Brazil
Prior art keywords
fluid
load reaction
path
cylinder
load
Prior art date
Application number
BR0000570A
Other languages
English (en)
Inventor
William John Novacek
James Kwok-Fun Yip
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of BR0000570A publication Critical patent/BR0000570A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B62D5/093—Telemotor driven by steering wheel movement
    • B62D5/097—Telemotor driven by steering wheel movement gerotor type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86662—Axial and radial flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Servomotors (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

''UNIDADE DE ESTERçAMENTO DE REAçãO A CARGA PARA CILINDRO DE áREA DESIGUAL''. Um controlador de fluido (15) do tipo que controla o fluxo de fluido para um cilindro de esterçamento de área desigual (25), onde o controlador é do tipo de reação a carga. O controlador (15) inclui valvulamento (27) que, quando está em neutro (figs. 1 e 5), define uma trajetória de fluido de reação a carga (LR) permitindo comunicação fluida entre os orifícios de fluido de controle (21, e 23) através do medidor de fluido (29) em resposta a uma carga externa imposta no cilindro (25). De acordo com a invenção, o valvulamento (27) inclui uma trajetória de fluido (97, 95, 99, 71, 75) entre a trajetória de fluido de reação a carga (LR) e o orifício de retorno (19), quando o valvulamento está em neutro. Quando a câmara de extremidade de haste (A) está se contraindo, fluido é extraído do orifício de retorno para dentro da trajetória de fluido de reação a carga (LR), impedindo cavitação, e quando a câmara de extremidade de ponta (R) está se contraindo, fluido escoa a partir da trajetória de fluido de reação a carga (LR) para o orifício de retorno (19), impedindo intensificação de pressão.
BR0000570A 1999-01-13 2000-01-12 Unidade de esterçamento de reação a carga para cilindro de área desigual BR0000570A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/229,713 US5992458A (en) 1999-01-13 1999-01-13 Load reaction steering unit for unequal area cylinder

Publications (1)

Publication Number Publication Date
BR0000570A true BR0000570A (pt) 2000-10-17

Family

ID=22862407

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0000570A BR0000570A (pt) 1999-01-13 2000-01-12 Unidade de esterçamento de reação a carga para cilindro de área desigual

Country Status (7)

Country Link
US (1) US5992458A (pt)
EP (1) EP1020343B1 (pt)
JP (1) JP4329089B2 (pt)
CN (1) CN1131157C (pt)
BR (1) BR0000570A (pt)
DE (1) DE69934200T2 (pt)
DK (1) DK1020343T3 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006026394A1 (de) * 2005-06-10 2007-02-08 Sauer-Danfoss Aps Fluidregler
DE102007027768B4 (de) * 2006-06-22 2008-09-18 Sauer-Danfoss Aps Ein Flüssigkeitsregler und Verfahren zur Feststellung eines Fehlers in einem Flüssigkeitsregler
DE102008007736A1 (de) * 2007-02-08 2008-08-21 Sauer-Danfoss Aps Hydraulisches Lenksystem
US7984785B2 (en) 2008-02-28 2011-07-26 Eaton Corporation Control valve assembly for electro-hydraulic steering system
US7931112B2 (en) * 2008-05-02 2011-04-26 Eaton Corporation Isolation valve for a load-reaction steering system
JP7242239B2 (ja) * 2018-10-09 2023-03-20 仁科工業株式会社 パワーステアリングバルブ
DE102020106438B4 (de) 2020-03-10 2022-03-31 Danfoss Power Solutions Aps Fluidsteuereinrichtung, insbesondere als Teil einer hydraulischen Lenkeinheit
DE102020106437B4 (de) 2020-03-10 2024-09-26 Danfoss Power Solutions Aps Fluidsteuereinrichtung, insbesondere als Teil einer hydraulischen Lenkeinheit
MX2024001907A (es) 2021-08-12 2024-06-19 Jones & Co Inc R A Alimentador giratorio de cartón.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25126A (en) * 1859-08-16 Churn
DE2419672A1 (de) * 1974-04-24 1975-10-30 Zahnradfabrik Friedrichshafen Hydrostatische hilfskraftlenkung, insbesondere fuer kraftfahrzeuge
DE3018792C2 (de) * 1980-05-16 1983-03-31 Danfoss A/S, 6430 Nordborg Hydrostatische Steuereinrichtung, insbesondere Lenkeinrichtung
DK150948C (da) * 1981-08-10 1988-02-29 Danfoss As Hydrostatisk styreindretning
US5638864A (en) * 1995-11-22 1997-06-17 Eaton Corporation Steering control unit with flow amplification for unequal area cylinder
US5819532A (en) * 1997-06-06 1998-10-13 Eaton Corporation Dynamic load signal fluid controller with instant on flow amplification

Also Published As

Publication number Publication date
CN1260305A (zh) 2000-07-19
JP2000203439A (ja) 2000-07-25
JP4329089B2 (ja) 2009-09-09
DE69934200T2 (de) 2007-09-13
EP1020343B1 (en) 2006-11-29
US5992458A (en) 1999-11-30
DE69934200D1 (de) 2007-01-11
EP1020343A2 (en) 2000-07-19
CN1131157C (zh) 2003-12-17
DK1020343T3 (da) 2007-04-02
EP1020343A3 (en) 2003-02-05

Similar Documents

Publication Publication Date Title
BR9803131A (pt) Válvula de controle operada por piloto, e, conjunto de válvula de controle hidráulica.
BR0000570A (pt) Unidade de esterçamento de reação a carga para cilindro de área desigual
BR0101140A (pt) Válvula de controle operada por válvula piloto bidirecional
US4555976A (en) Device for controlling a hydromotor
ES2186163T3 (es) Dispositivo de ajuste y amortiguacion.
BR0109580A (pt) Sistema complementar de vazão para controlar a vazão do fluido
WO2002012732A3 (en) Hydraulic control valve system with pressure compensated flow control
DE59100949D1 (de) Sicherheitsventil.
SE9803914D0 (sv) Positive flow control system
EP0952358A3 (en) Hose rupture control valve unit
BR0101467A (pt) Conjunto de válvula hidráulica, e, sistemahidráulico
US3335739A (en) Valve
BR0215188A (pt) Compensação de pressão/controle para válvula de gaveta à prova de falha
BR0011323A (pt) Válvula piloto
US4568292A (en) Hydraulic assistance device for use in a steering system
BR0103026A (pt) Veìculo de trabalho, e, trator de pá carregadeira com uma retroescavadeira
KR870003334A (ko) 유량제어기구를 구비한 방향제어밸브
BR0014336A (pt) Dispositivo em um sistema submarino para controle do acionador hidráulico e sistema submarino com acionador hidráulico
US4085855A (en) Mechanism control
BRPI0402604A (pt) Conjunto de bomba em série com sistema de anulação de controle de bomba
JPS6417933A (en) Improved control system for boom and bucket operating system of front end loader
JPS6059441B2 (ja) ワークポート流体が補償されるようにした弁及びワークポート補償器
BR0305144A (pt) Válvula de solenóide para consumo de energia reduzido
DE69626537D1 (de) Steuerventile
BR9713840A (pt) Sistema de centralização para máquina de pistão livre

Legal Events

Date Code Title Description
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 12/01/2000, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 15A ANUIDADE.

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 2288 DE 11-11-2014 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.