EP2668400A1 - Dispositif et système de surveillance d'une pompe a actionnement pneumatique a déplacement linéaire alternatif - Google Patents

Dispositif et système de surveillance d'une pompe a actionnement pneumatique a déplacement linéaire alternatif

Info

Publication number
EP2668400A1
EP2668400A1 EP12705372.6A EP12705372A EP2668400A1 EP 2668400 A1 EP2668400 A1 EP 2668400A1 EP 12705372 A EP12705372 A EP 12705372A EP 2668400 A1 EP2668400 A1 EP 2668400A1
Authority
EP
European Patent Office
Prior art keywords
pneumatically
monitoring
displacement pump
linear displacement
alternating linear
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.)
Granted
Application number
EP12705372.6A
Other languages
German (de)
English (en)
Other versions
EP2668400B1 (fr
Inventor
Philippe De Talhouet
Cédric MOSNIER
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.)
Exel Industries SA
Original Assignee
Exel Industries SA
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 Exel Industries SA filed Critical Exel Industries SA
Publication of EP2668400A1 publication Critical patent/EP2668400A1/fr
Application granted granted Critical
Publication of EP2668400B1 publication Critical patent/EP2668400B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0409—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material the pumps being driven by a hydraulic or a pneumatic fluid
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B51/00—Testing machines, pumps, or pumping installations
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/10—Motor parameters of linear elastic fluid motors

Definitions

  • the invention relates to a device for monitoring a pneumatically actuated pump with linear reciprocating displacement.
  • the invention also relates to a monitoring system of a reciprocating linear displacement pneumatic pump.
  • the invention is particularly useful for monitoring paint feed pumps, in pumping or extrusion, dosing, or regulating liquid and thick products, intended to be pumped, dispensed, regulated and delivered in flow rates. continuous or intermittent.
  • the reciprocating linear pneumatic motor is at the origin of the output pressure of the product.
  • the ratio of the piston sections of the reciprocating linear displacement motor and the pump piston gives the theoretical pressure ratio between the reciprocating linear air motor and the paint feed pump.
  • This theoretical pressure ratio between the reciprocating linear air motor and the paint feed pump thus determines the output pressure of the product generated by the pump.
  • Reciprocating linear air motors operate with the pneumatic energy delivered by a pressurized air supply and are generally connected to an exhaust.
  • the movement of the reciprocating linear displacement pneumatic motors can be controlled by an electromechanical system comprising two limit switches connected to an air distributor.
  • This high-flow air distributor directs the pressurized air alternately into the upper chamber or the lower chamber of the engine to cause the descent or the rise of the piston, while ensuring the escape of the air driven from the other chamber, lower or higher, the engine.
  • WO 2007/016151 A2 discloses a method for controlling a pump actuated by compressed air, using a magnet mounted in the air motor distributor spool and two magnetic sensors mounted in the distributor cover to observe speed and position the drawer of this dispenser.
  • a first object of the invention is to improve the known state of the art, by proposing a new monitoring device of a pneumatic actuating pump with linear displacement, insensitive to magnetic disturbances.
  • a second object of the invention is to provide a new monitoring device of a pneumatic actuating pump linear displacement alternative, economical manufacturing, easy maintenance, and simple operation.
  • a third object of the invention is to provide a new monitoring system of a pneumatically actuated pump with linear displacement, immediate understanding and simple use.
  • the subject of the invention is a device for monitoring a pump of a liquid or pasty product such as a paint, said pump being a pneumatically actuated pump with linear reciprocating displacement, the pneumatic actuation being ensured by a pneumatic motor.
  • the device comprising means for pneumatic pressure sensor of the pneumatic motor, means for transmitting the signal representative of the pneumatic pressure sensed from the pneumatic motor, and liquid or pasty product pump management means, pneumatically actuated and displaceable. reciprocating linear signal from the transmitted signal representative of the pneumatic pressure sensed from the pneumatic motor.
  • the pneumatic pressure sensor means comprise a single pressure sensor for measuring the pressure of a chamber of the pneumatic motor.
  • the pneumatic pressure sensor may be located outside the pneumatic motor.
  • the pneumatic pressure sensor may be located inside the pneumatic motor.
  • the subject of the invention is also a system for monitoring a pump of a liquid or pasty product such as a paint, said pump being a pneumatically actuated pump with linear reciprocating displacement, the pneumatic actuation being provided by an engine pneumatic system, the system comprising means for pneumatic pressure sensor of the pneumatic motor, means for transmitting the signal representative of the pneumatic pressure sensed from the pneumatic motor, and liquid or pasty product pump management means with pneumatic actuation and reciprocating linear displacement, from the transmitted signal representative of the pneumatic pressure sensed from the pneumatic motor.
  • the signal transmission means representative of the sensed pneumatic pressure preferably transmit an electrical signal representative of the sensed pneumatic pressure to pneumatic actuating pump means and reciprocating linear displacement.
  • the pneumatic actuating pump means and reciprocating linear displacement comprise a clock or a counter capable of generating at least one chronogram representative of the evolution of the pneumatic pressure sensed from the transmitted signal representative of the sensed pneumatic pressure.
  • the monitoring system comprises means for measuring over several periods of the pneumatic pressure signal, and means for testing and validating this measurement only if the frequency of the signal is constant.
  • the monitoring system comprises test means and validation by learning performed in case of nozzle change on the gun of a paint supply pump.
  • the monitoring system comprises means for recording the frequency of the pneumatic pressure signal, for use as a reference for filtering the priming periods, or for raising the tint, or for working by so-called "gating" keys.
  • FIG. 1 shows schematically a partial view of a monitoring device according to the invention of a reciprocating linear displacement pneumatic motor driving a pump.
  • FIG. 2 schematically shows a timing chart corresponding to the monitoring of a reciprocating linear displacement motor in normal operation by means of a system according to the invention comprising a monitoring device according to the invention.
  • FIG. 3 diagrammatically represents a chronogram corresponding to the monitoring of a reciprocating linear displacement pneumatic motor in defective operation by means of a system according to the invention comprising a monitoring device according to the invention.
  • FIG. 4 diagrammatically represents a timing diagram corresponding to the monitoring of a reciprocating linear displacement pneumatic motor in defective operation by means of a system according to the invention comprising a monitoring device according to the invention.
  • FIG. 5 diagrammatically represents a timing diagram corresponding to the monitoring of a reciprocating linear displacement pneumatic motor in defective operation by means of a system according to the invention comprising a monitoring device according to the invention.
  • a monitoring device for a reciprocating linear displacement pneumatic motor 1 driving a paint supply pump comprises means 2 for a pneumatic pressure sensor, means 3 for transmitting the signal representative of the pneumatic pressure. sensed, and pneumatic actuation pump means 4 reciprocating linear displacement from the transmitted signal representative of the sensed pneumatic pressure.
  • the pneumatic pressure sensor means 2 advantageously comprise a single pressure sensor for measuring the pressure of the upper chamber 1a of the air motor 1.
  • the pneumatic pressure sensor is located outside the pneumatic motor 1 in this example.
  • the invention also covers the variant not shown, according to which the pneumatic pressure sensor is located inside the pneumatic motor 1.
  • the means 3 for transmitting the signal representative of the sensed pneumatic pressure preferably transmit an electrical signal representative of the pneumatic pressure sensed at means 4 of pneumatic actuation pump with reciprocating linear displacement.
  • the pneumatic actuation pump means 4 with reciprocating linear displacement comprise a clock or a counter able to generate at least one chronogram representative of the evolution of the pneumatic pressure sensed from the transmitted signal representative of the sensed pneumatic pressure.
  • the invention applies to the monitoring of all known reversal direction control systems of linear reciprocating pneumatic motors driving a feed pump, which raise or lower the piston, directing the air under pressure alternatively in the upper chamber or the lower chamber of the engine to cause the descent or the rise of the piston, while ensuring the escape of the air driven from the other chamber, lower or higher, the engine.
  • FIG. 2 a timing diagram for implementing the monitoring system according to the invention for a reciprocating linear displacement pneumatic motor 1 driving a paint supply pump describes a normal operation of the paint supply pump.
  • the system according to the invention for monitoring a pneumatic motor 1 with reciprocating linear displacement calculates the frequency of the piston of the engine 1 to deduce therefrom the flow rate of the paint supply pump, and calculates the air pressure value in the engine 1 to deduce by calculation the pressure of the paint at the output of the feed pump.
  • the reciprocating linear air motor causing the product outlet pressure is subjected to a resistant force of the paint supply pump depending on the outlet pressure of the product. generated by the pump.
  • the regular alternating timing diagram of FIG. 2 of the pneumatic pressure P sensed from the transmitted signal as a function of time T thus corresponds to a regular reciprocating cycle of the product outlet pressure generated by the paint supply pump.
  • FIG. 3 a timing diagram for implementing the monitoring system according to the invention for a reciprocating linear displacement pneumatic motor 1 driving a paint supply pump describes a defective operation of the paint supply pump.
  • the reciprocating linear air motor causing the product outlet pressure is subjected to a resistant force of the paint supply pump depending on the outlet pressure of the product. generated by the pump.
  • the irregular alternating timing diagram of FIG. 3 of the pneumatic pressure P sensed from the transmitted signal as a function of time T corresponds to an evolution reflecting a significant decrease in the pump cycle time, the detection of which is effective when the cycle time becomes less than a predetermined or calculated threshold value.
  • This effective detection of a significant decrease in the cycle time of the pump indicates a runaway of the pump, which can for example come from a defusing of the pump, or a problem of cavitation.
  • FIG. 4 a timing diagram for implementing the monitoring system according to the invention for a reciprocating linear displacement pneumatic motor 1 driving a paint feed pump describes a defective operation of the paint feed pump.
  • the reciprocating linear air motor causing the product outlet pressure is subjected to a resistant force of the paint supply pump depending on the outlet pressure of the product. generated by the pump.
  • the irregular alternating timing diagram of FIG. 4 of the pneumatic pressure P sensed from the signal transmitted as a function of time T corresponds to an evolution, in which the delivery time T1 of the pneumatic pressure P is greater than the suction time T2 of the pneumatic pressure P.
  • FIG. 5 a timing diagram for implementing the monitoring system according to the invention for a reciprocating linear displacement pneumatic motor 1 driving a paint feed pump describes a defective operation of the paint feed pump.
  • the reciprocating linear air motor causing the product outlet pressure is subjected to a resistant force of the paint supply pump depending on the outlet pressure of the product. generated by the pump.
  • the irregular alternating timing diagram of FIG. 5 of the pneumatic pressure P sensed from the signal transmitted as a function of time T corresponds to an evolution, in which the delivery time T1 of the pneumatic pressure P is less than the suction time T2 of the pneumatic pressure P.
  • a first variant of the system according to the invention for monitoring a pneumatic motor 1 with linear reciprocating displacement a paint feed pump advantageously comprises means for measuring over several periods of the pneumatic pressure signal, and means for testing and validating this measurement only if the frequency of the signal is constant.
  • a second variant of the system according to the invention for monitoring a pneumatic motor 1 with reciprocating linear displacement driving a paint supply pump advantageously comprises means for testing and validation by learning.
  • the monitoring system according to the invention remakes this training
  • the two variants of monitoring systems according to the invention for a pneumatic motor 1 with reciprocating linear displacement driving a paint supply pump make it possible to avoid erroneous leak detections or flow calculation errors during a phase of the invention. priming or rising tint, or during a normal use of work by so-called "gating" keys.
  • Each system according to the invention for monitoring a pneumatic motor 1 with reciprocating linear displacement thus records the frequency of the signal which will serve as a reference for filtering the periods of initiation or rise in hue, or work by keys known as "gachetage" .
  • a single pneumatic pressure sensor of a chamber of a linear reciprocating pneumatic motor 1 driving a paint supply pump makes it possible to calculate the frequency of the piston of the pneumatic motor for the detection of runaway, wear, or cavitation of the paint feed pump, test whether the piston descent time is greater than the rise time in order to detect leakage of the pump top valve displacement feed in painting, to test whether the rise time of the piston is greater than the descent time in order to detect a leakage of the bottom valve of the paint supply displacement pump, to calculate flow values in different units, and calculate the output pressure of the pumped product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Servomotors (AREA)
  • Measuring Fluid Pressure (AREA)
  • Coating Apparatus (AREA)
EP12705372.6A 2011-01-27 2012-01-24 Système de surveillance d'une pompe a actionnement pneumatique a déplacement linéaire alternatif Active EP2668400B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1150644A FR2971019B1 (fr) 2011-01-27 2011-01-27 Dispositif et systeme de surveillance d'une pompe a actionnement pneumatique a deplacement lineaire alternatif.
PCT/FR2012/050158 WO2012101379A1 (fr) 2011-01-27 2012-01-24 Dispositif et système de surveillance d'une pompe a actionnement pneumatique a déplacement linéaire alternatif

Publications (2)

Publication Number Publication Date
EP2668400A1 true EP2668400A1 (fr) 2013-12-04
EP2668400B1 EP2668400B1 (fr) 2019-05-15

Family

ID=45755393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12705372.6A Active EP2668400B1 (fr) 2011-01-27 2012-01-24 Système de surveillance d'une pompe a actionnement pneumatique a déplacement linéaire alternatif

Country Status (10)

Country Link
US (1) US10626862B2 (fr)
EP (1) EP2668400B1 (fr)
KR (1) KR101857843B1 (fr)
CN (1) CN103348136B (fr)
AR (1) AR084923A1 (fr)
BR (1) BR112013016450A2 (fr)
EA (1) EA029288B1 (fr)
FR (1) FR2971019B1 (fr)
MX (1) MX337185B (fr)
WO (1) WO2012101379A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020227304A1 (fr) * 2019-05-05 2020-11-12 Graco Minnesota Inc. Système d'essai de pression d'enceinte
US20230358218A1 (en) * 2022-04-08 2023-11-09 Embark Innovations Pneumatic Pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635125A (en) * 1969-03-21 1972-01-18 Nordson Corp Double-acting hydraulic pump and air motor therefor
US4405292A (en) * 1981-11-09 1983-09-20 Haskel, Incorporated Pneumatically controlled rate pump
DE3708989C2 (de) * 1987-03-19 1993-10-14 Festo Kg Steuervorrichtung für einen in einem doppeltwirkenden Zylinder verschiebbaren Kolben
DE3710340A1 (de) * 1987-03-28 1988-10-06 Albert Kipfelsberger Kraftschrauber mit drehmomentbegrenzung
DE19611339A1 (de) * 1996-03-22 1997-09-25 Wagner Wilhelm Wiwa Verfahren zum Fördern von Werkstoffen und Vorrichtung zur Durchführung des Verfahrens
GB2321206B (en) * 1997-01-10 2001-05-09 Honda Motor Co Ltd Method and apparatus for testing functions of painting apparatus
GB0216745D0 (en) * 2002-07-18 2002-08-28 Univ Cardiff Sensor
US9677549B2 (en) * 2005-07-28 2017-06-13 Graco Minnesota Inc. Reciprocating pump with electronically monitored air valve and piston
ES2363717T3 (es) 2005-07-29 2011-08-12 Graco Minnesota Inc. Bomba alternativa con válvula de aire monitorizada electrónicamente que tiene una batería y monitorización electrónica por solenoide.
FR2903027B1 (fr) * 2006-07-03 2008-11-14 Exel Ind Sa Pistolet automatique de pulverisation
DE202007001537U1 (de) * 2007-02-02 2008-06-19 Wagner, Paul-Heinz Hydraulikaggregat für hydraulische Kraftschrauben
US20080240944A1 (en) * 2007-03-28 2008-10-02 Lincoln Industrial Corporation Air-Operated Pump
US7603855B2 (en) * 2007-04-10 2009-10-20 Illinois Tool Works Inc. Valve with magnetic detents

Also Published As

Publication number Publication date
BR112013016450A2 (pt) 2020-11-03
US20130189122A1 (en) 2013-07-25
FR2971019B1 (fr) 2016-01-15
MX337185B (es) 2016-02-16
US10626862B2 (en) 2020-04-21
CN103348136A (zh) 2013-10-09
FR2971019A1 (fr) 2012-08-03
WO2012101379A1 (fr) 2012-08-02
EP2668400B1 (fr) 2019-05-15
KR20130141653A (ko) 2013-12-26
CN103348136B (zh) 2016-08-10
KR101857843B1 (ko) 2018-06-20
AR084923A1 (es) 2013-07-10
EA029288B1 (ru) 2018-03-30
MX2013005656A (es) 2013-07-17
EA201391080A1 (ru) 2013-12-30

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