ES2519265T3 - Aparato y método para el control electrohidráulico del paralelismo en una máquina de curvado de productos metálicos - Google Patents

Aparato y método para el control electrohidráulico del paralelismo en una máquina de curvado de productos metálicos Download PDF

Info

Publication number
ES2519265T3
ES2519265T3 ES12177973.0T ES12177973T ES2519265T3 ES 2519265 T3 ES2519265 T3 ES 2519265T3 ES 12177973 T ES12177973 T ES 12177973T ES 2519265 T3 ES2519265 T3 ES 2519265T3
Authority
ES
Spain
Prior art keywords
drive means
parallelism
proportional valve
operating fluid
valve elements
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.)
Active
Application number
ES12177973.0T
Other languages
English (en)
Inventor
Orazio Maria Davi
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.)
Promau Srl
Original Assignee
Promau Srl
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 Promau Srl filed Critical Promau Srl
Application granted granted Critical
Publication of ES2519265T3 publication Critical patent/ES2519265T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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
    • 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
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/41563—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a return line
    • 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
    • F15B2211/426—Flow control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
    • 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
    • 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
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked
    • 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
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
    • 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
    • F15B2211/765—Control of position or angle of the output member
    • F15B2211/7656—Control of position or angle of the output member with continuous position 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

Aparato para el control electrohidráulico del paralelismo de un rodillo (4) de una máquina de curvado 1 ; 10) para procesar piezas metálicas (L), que comprende : medios de bombeo (P1, P2) para alimentar con un fluido operativo primeros medios de accionamiento (C1) y segundos medios de accionamiento (C2) dispuestos para mover respectivamente un primer extremo (11) y un segundo extremo (12) de dicho rodillo (4); medios transductores de posición (T1, T2) conectados operativamente a una unidad de control electrónica (U1) y adecuados para detectar las posiciones de dicho primer (11) y segundo (12) extremo; donde dichos medios de bombeo comprenden una primera bomba (P1) y una segunda bomba (P2) conectadas operativamente entre sí, que están dispuestas para suministrar de una manera dedicada dicho primero (C1) y segundo (C2) medios de accionamiento, respectivamente, por medio de un primer (5) y un segundo (6 ) circuito hidráulico que son independientes entre sí, caracterizado porque el aparato comprende primero (VP1) y segundo (VP2) elementos de válvula proporcional que son operativamente controlable por dicha unidad de control electrónico (U1) para ajustar el flujo de dicho fluido operativo en dichos primer (C1) y segundo (C2) medios de accionamiento de acuerdo a señales de dichos medios transductores de posición (T1, T2), dichos primer (VP1) y segundo (VP2) elementos de válvula proporcional estando situados, según una configuración en paralelo, a lo largo de un primer (13) y un segundo (14) conductos que están conectados de una manera ramificada a una primera (8) y segunda (18) porción de suministro de dichos primer (5) y segundo (6) circuitos hidráulicos, respectivamente, dichos primer (VP1) y segundo (VP2) elementos de válvula proporcional estando configurados para ser capaces de extraer fluido operativo desde dicha primera (8) y segunda (18) porción de suministro para reducir el caudal volumétrico de las mismas a dicho primero (C1) y/o segundo (C2) medios de accionamiento.

Description

imagen1
imagen2
imagen3
imagen4
imagen5
imagen6
imagen7
imagen8
imagen9

Claims (1)

  1. imagen1
    imagen2
    imagen3
ES12177973.0T 2011-07-27 2012-07-26 Aparato y método para el control electrohidráulico del paralelismo en una máquina de curvado de productos metálicos Active ES2519265T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001408A ITMI20111408A1 (it) 2011-07-27 2011-07-27 Apparato e metodo per il controllo elettroidraulico del parallelismo in una calandra per la lavorazione di manufatti in metallo
ITMI20111408 2011-07-27

Publications (1)

Publication Number Publication Date
ES2519265T3 true ES2519265T3 (es) 2014-11-06

Family

ID=44545833

Family Applications (1)

Application Number Title Priority Date Filing Date
ES12177973.0T Active ES2519265T3 (es) 2011-07-27 2012-07-26 Aparato y método para el control electrohidráulico del paralelismo en una máquina de curvado de productos metálicos

Country Status (7)

Country Link
US (2) US9468961B2 (es)
EP (1) EP2551029B1 (es)
DK (1) DK2551029T3 (es)
ES (1) ES2519265T3 (es)
IT (1) ITMI20111408A1 (es)
PL (1) PL2551029T3 (es)
PT (1) PT2551029E (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111408A1 (it) * 2011-07-27 2013-01-28 Promau Srl Apparato e metodo per il controllo elettroidraulico del parallelismo in una calandra per la lavorazione di manufatti in metallo
RU2534649C1 (ru) * 2013-05-06 2014-12-10 Эмерсон Процесс Менеджмент Пауэр Энд Вотер Солюшнз, Инк. Система управления кольцевым затвором (варианты) и способ управления кольцевым затвором
CN103334973B (zh) * 2013-06-13 2016-01-20 三一汽车起重机械有限公司 一种多液压缸同步系统及多液压缸同步系统的控制方法
CN104454748B (zh) * 2014-12-05 2017-01-25 宁波恒力液压股份有限公司 齿轮泵、溢流阀及单向阀可靠性的综合节能试验液压装置
CN104959408A (zh) * 2015-06-22 2015-10-07 苏州边桐传感科技有限公司 钣金折弯加工装置
CN104959406A (zh) * 2015-06-22 2015-10-07 苏州边桐传感科技有限公司 带角度调控与阶段折弯的钣金折弯系统
CN104942077A (zh) * 2015-06-25 2015-09-30 苏州边桐传感科技有限公司 带厚度检测调整与压力检测的折弯装置及方法
CN104942072A (zh) * 2015-06-25 2015-09-30 苏州边桐传感科技有限公司 带自动扭矩调节与滚压折弯的折弯装置及方法
CN104942080A (zh) * 2015-06-25 2015-09-30 苏州边桐传感科技有限公司 钣金折弯加工装置及方法
CN105909575B (zh) * 2016-06-28 2017-10-31 安徽东海机床制造有限公司 一种高效折弯机的折弯方法
CN106140980B (zh) * 2016-08-22 2018-03-02 仪征雄伟机械科技有限公司 一种数字化显示弯曲冲模装置
US10512961B2 (en) * 2016-11-11 2019-12-24 Mega Manufacturing, Inc. Plate roll bending machine with distributed hydraulic system
DE102017217715A1 (de) * 2017-10-05 2019-04-11 Peri Gmbh Hydraulik-Anordnung mit vernetzten Hydraulikaggregaten sowie Kletterschalung und Verfahren zum Bewegen der Kletterschalung mit einer solchen Hydraulik-Anordnung
EP3706931A1 (en) * 2017-11-10 2020-09-16 Promau S.r.l. Apparatus and method for support and controlled advancement of a metal sheet in a bending machine for obtaining cylindrical or truncated cone structures
CN109663840B (zh) * 2019-01-29 2023-07-04 南通泰胜蓝岛海洋工程有限公司 一种三辊卷板机的控制系统
IT202300001590A1 (it) * 2023-02-01 2024-08-01 Promau Srl Macchina piegatrice a rulli
CN120023210B (zh) * 2025-04-23 2025-07-08 山西万流金属制品有限公司 一种可变直径的金属板卷绕制管装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1083138A (en) * 1963-10-07 1967-09-13 United Eng Foundry Co Pressure and control device for a rolling mill
EP0103727A1 (de) * 1982-09-02 1984-03-28 Inventio Ag Gleichlaufregelungseinrichtung für den elektrohydraulischen Antrieb einer Abkantpresse
JPS59225821A (ja) * 1983-06-06 1984-12-18 Fuji Sharyo Kk 油圧シリンダ駆動機構における制御装置
RU1774889C (ru) * 1990-08-20 1992-11-07 А. И. Батров Гидросистема синхронизации гидроцилиндров
US5187959A (en) * 1990-09-28 1993-02-23 Promau S.R.L. Programmable plate bending machine
IT223460Z2 (it) * 1990-09-28 1995-07-19 Davi Spa Calandra curvatrice a 4 rulli sagomatori con supporti antiflessione longitudinali e seie di rullini di contrasto.
IT1289355B1 (it) * 1996-12-18 1998-10-02 Promau Srl Procedimento per la curvatura di lamiere,e relativa calandra
IT1296576B1 (it) * 1997-11-27 1999-07-14 Promau Srl Apparecchiatura automatica per la curvatura di lamiere, con controllo selettivo digitale
US6240758B1 (en) * 1999-06-21 2001-06-05 Toyokoki Co., Ltd. Hydraulic machine
KR100915207B1 (ko) * 2007-10-16 2009-09-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 중장비용 유압회로
ITMI20111408A1 (it) * 2011-07-27 2013-01-28 Promau Srl Apparato e metodo per il controllo elettroidraulico del parallelismo in una calandra per la lavorazione di manufatti in metallo

Also Published As

Publication number Publication date
EP2551029B1 (en) 2014-03-12
DK2551029T3 (da) 2014-06-16
EP2551029A1 (en) 2013-01-30
PT2551029E (pt) 2014-06-23
US9669443B2 (en) 2017-06-06
PL2551029T3 (pl) 2014-09-30
US9468961B2 (en) 2016-10-18
US20130025335A1 (en) 2013-01-31
ITMI20111408A1 (it) 2013-01-28
US20170008056A1 (en) 2017-01-12

Similar Documents

Publication Publication Date Title
ES2585554T3 (es) Bomba de sangre
IL281419A (en) Drive mechanisms for drug delivery pumps
ES2527719T3 (es) Aparato para controlar un sistema de distribución de aire
MX384893B (es) Bomba integrada con dos motores primarios impulsados de manera independiente.
AU2016312206A1 (en) Hydraulic drive system for cryogenic pump
BR112014006869A2 (pt) dispositivo de bomba de múltiplos fluidos contínuos, sistema de acionamento e atuação e método
ES2633961T3 (es) Máquina de café
FR3024235B1 (fr) Systeme d'imagerie planaire permettant la correction du diffuse
EP2678098A4 (en) PRESSURE REGENERATOR WITH MOVABLE CONTROL ROD FOR GENERATING PRESSURE WAVES IN A MEDIUM
BR112014002652A2 (pt) sistema, método para processar uma transação financeira em um ponto de venda, e, meio legível em máquina não transitório
GB2559047B (en) Auxiliary drive system for a pump
EP3351807A4 (en) HYDRAULIC DRIVE DEVICE FOR A WORKING MACHINE
CL2015001167A1 (es) Sistema de procesamiento de un medio lamelar, que comprende un controlador principal, un aparato de almacenamiento del medio, un aparato de reconocimiento del medio, un aparato de transferencia del medio, que comprende un motor, un mecanismo de accionamiento y un canal de transferencia del medio que presenta una pluralidad de ramificaciones, en que una pluralidad de posiciones de detección está dispuesta en el canal, y un sensor está dispuesto en cada posición de detección; método asociado
CL2020000999A1 (es) Dispositivo de inspección con desplazamiento no motorizado de tuberías de fluido
ES2559291T3 (es) Molino de bolas de mecanismo agitador
HUE060701T2 (hu) Szivattyú olvadék szivattyúzáshoz
ES2566187T3 (es) Dispositivo de estrangulamiento
MX338162B (es) Dispositivos para expulsion de fluidos y sus metodos.
CL2014002158A1 (es) Una unidad hidráulica independiente para suministrar a lo menos a un usuario en la forma de una maquina perforador hidráulica o una máquina de martillo hidráulica, con un flujo de aceite, tal unidad hidráulica independiente comprende: un motor, una bomba hidráulica impulsada por el motor, un tanque de aceite, una entrada de aceite, una salida de aceite, un intercambiador de calor, y un primer sistema de conductos para el aceite.
EP3332126A4 (en) MAGNETIC DRIVE, SEALLESS PUMP
ES2638010T3 (es) Unidad de motobomba
ES2644847T3 (es) Máquina agrícola
EP2715135A4 (en) FLUID PUMP WITH FRONT DRIVE
FR3017952B1 (fr) Procede pour determiner une concentration en lipides dans un micro-organisme.
CL2014000600A1 (es) Sistema de corredera transportadora que presenta al menos un accionamiento en el tambor, y un sinnumero de rodillos intermedios del ramal superior, que cuenta con un medio para ubicar los rodillos intermedios en una posicion separada de la correa sin detener la correa transportadora.